JP3062724B2 - Carbonization equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a method of producing charcoal by carbonizing waste wood, such as unused wood such as thinned wood, wood-based building demolition material, and scrap wood from wood processing, as a raw material for carbonization. The present invention relates to a carbonization device for achieving reuse and effective use.

[0002]

2. Description of the Related Art Conventionally, as a carbonization apparatus of this type, a carbonization furnace is constituted by using a rotary type cylindrical body which is relatively long in a horizontal direction and is substantially horizontal, and one end of the carbonization furnace is provided with a carbonization raw material. It is known that a supply means and a discharge means are connected to the other end, respectively. The carbonization furnace includes a steel cylinder and a refractory concrete layer covering the inner peripheral surface thereof (see, for example, Japanese Patent Application Laid-Open No. 5-247470). Is controlled so as to be rotatable so as not to move in the cylinder axis direction, so that thermal expansion is performed on both sides in the cylinder axis direction, and the relative movement amount of both ends of the carbonization furnace in the cylinder axis direction due to the thermal expansion is reduced. (See, for example, JP-A-5-62552).

[0003]

However, in the case where the above-mentioned carbonization furnace is constituted by a steel cylinder and refractory concrete, the temperature is extremely high (for example, as compared with the case where the carbonization furnace is constituted only by the steel cylinder). (500-1000 ° C.), the amount of thermal expansion associated with the carbonization treatment can be reduced, but since the steel tubular body and the refractory concrete layer are integrated, the outer periphery of the carbonization furnace is affected by the heat accompanying the carbonization treatment. In addition to the thermal expansion of the steel cylinder constituting the side, there is a possibility that a relative displacement occurs between the steel cylinder and the refractory concrete layer due to a difference in thermal expansion between the steel cylinder and the refractory concrete layer, thereby causing peeling. Then, when the steel cylinder is thermally expanded and relatively displaced in the cylinder axis direction or in the radial direction, a driving force transmission unit for driving the carbonization furnace with a driving system, a support mechanism for rotatably supporting the carbonization furnace, As a result, it has an adverse effect on the connection with the supply means and the discharge means connected to each end of the carbonization furnace in the cylinder axis direction, and an excessive load acts to hinder the drive transmission or cause damage to each part. Will do.

[0004] Therefore, it is necessary to allow thermal expansion, but not to hinder the drive transmission and the support mechanism.

The present invention has been made in view of such circumstances, and an object of the present invention is to prevent each component from being affected even when thermal expansion occurs due to carbonization. The purpose is to ensure that the components function.

[0006]

In order to achieve the above object, an invention according to claim 1 comprises a tubular carbonization furnace which is disposed substantially horizontally with respect to a base and supported rotatably around a cylinder axis; A driving unit that rotationally drives the carbonization furnace, a supply unit that is connected to one end of the carbonization furnace in the cylinder axis direction and supplies a carbonized raw material,
It is assumed that the furnace is provided with a discharge means connected to the other end side in the cylinder axis direction of the carbonization furnace and configured to discharge the carbonized material. In this, the carbonization furnace is an inner cylinder, an outer cylinder disposed coaxially around the inner cylinder with an annular gap at a predetermined interval in the radial direction, and an outer cylinder that surrounds the inner cylinder. And a supporting means for supporting in a state where relative displacement in the cylinder axis direction is possible and relative rotational displacement in the circumferential direction is prevented.

According to a second aspect of the present invention, the support means in the first aspect of the present invention is arranged such that the supporting means is circumferentially separated from one of the outer peripheral surface of the inner cylinder and the inner peripheral surface of the outer cylinder. At least two or more convex guide members which are provided to project in the radial direction toward the annular gap and extend in parallel with each other in the cylinder axis direction, and the other peripheral surface at a position corresponding to each of the convex guide members. At least two or more concave receiving members are provided protruding in the radial direction toward the annular gap and sandwich each of the convex guide members from both sides in the circumferential direction.

According to a third aspect of the present invention, in the second aspect of the present invention, each convex guide member and each concave receiving member are provided between each convex guide member of the support means and each concave receiving member. A gap is formed at a predetermined interval in the radial direction of the carbonizing furnace so as to allow relative displacement in the radial direction.

According to a fourth aspect of the present invention, in the second aspect of the invention, the carbonization furnace is supported so as to have a slight downward slope toward the discharge means. The support means includes a first stopper piece radially protruding from one of the outer peripheral surface of the inner cylinder or the inner peripheral surface of the outer cylinder, and the first stopper piece from the other peripheral surface. Has a configuration in which the first stopper piece protrudes in the opposite direction and the second stopper piece is opposed to and abuts in the cylinder axis direction.

According to a fifth aspect of the present invention, the driving means according to the first aspect of the present invention includes the sprocket which is rotatably supported and rotatably supported on the base, and the sprocket on the outer peripheral surface of the outer cylinder. A plurality of pin members having a circular cross section which are arranged at regular intervals in the circumferential direction so as to mesh with each other, and are attached in a state of being extended in parallel with each other in the axial direction of the cylinder and longer than the thickness of the sprocket. .

According to a sixth aspect of the present invention, there is provided a tubular carbonizing furnace which is disposed substantially horizontally with respect to a base and is rotatably supported about a cylindrical axis, driving means for rotating the carbonizing furnace, and the carbonizing furnace. It is assumed that there is provided a supply means connected to one end of the cylinder axis direction to supply the carbonized raw material, and a discharge means connected to the other end of the carbonization furnace in the cylinder axis direction to discharge the carbonized carbonized material. . In this, the carbonization furnace is provided with a pair of end covers for closing each opening at both ends in the cylinder axis direction in a state in which thermal expansion and contraction in the cylinder axis direction of the carbonization furnace is allowed, and the pair of end covers is provided. Each of the bases is attached via a regulating means for regulating the direction of thermal expansion and contraction with respect to the cylinder axis direction toward the carbonizing furnace. Then, each end cover is externally fitted to the outer peripheral surface of the inner end in the cylinder axis direction of the carbonization furnace via a seal member so as to be relatively displaceable in the cylinder axis direction, and A peripheral wall portion whose outer side in the direction protrudes outward in the cylinder axis direction from an end portion in the cylinder axis direction of the carbonization furnace, and an end wall portion that closes an opening of the outer peripheral end portion in the cylinder axis direction of the peripheral wall portion. In addition, the restricting means prevents the relative displacement of the end covers in the cylinder axis direction on the outer side portion in the cylinder axis direction, while preventing the relative displacement in the cylinder axis direction of the inner portion on the cylinder axis direction. It is configured to allow.

According to a seventh aspect of the present invention, the restricting means of the sixth aspect of the present invention is provided such that the restricting means is interposed between a base portion of each end cover in the axial direction and the base. And an inward restricting means interposed between the base and the base in the axial direction of each end cover. An outer diameter of the first shaft body is substantially the same as an outer diameter of the first shaft body in the first shaft body penetrating both the end covers and the base, and at least one of the end covers and the base. A first regulating hole provided to have a width in the cylinder axis direction and through which the first shaft body passes. Further, the inner-side restricting means may include a second shaft body penetrating both the end covers and the base, and at least one of the end covers and the base at least one of the outer diameters of the second shaft body. A second regulating hole provided to have a large width in the axial direction of the cylinder and through which the second shaft body is inserted.

According to an eighth aspect of the present invention, there is provided the exhaust means according to the sixth aspect, wherein a gas vent formed through a part of the exhaust means, and the gas vent is closed so as to be openable and closable. And a damper that is opened by the internal pressure when the internal pressure in the carbonization furnace exceeds the set pressure.

According to a ninth aspect of the present invention, the supply means according to the first or sixth aspect of the present invention comprises a vertically extending chute cylindrical body and a plurality of vertically spaced chute cylindrical bodies. And a plurality of shutter valves provided at each of the positions so as to open and close the inside of the chute cylinder up and down. The chute cylinder is vertically divided into a plurality of chute cylinders sandwiching each of the shutter valves, and the plurality of chute cylinders each having a lower inner cross-sectional area than the upper chute cylinder have a larger inner space cross-sectional area. As shown in FIG.

According to a tenth aspect of the present invention, in the supply means according to the first or sixth aspect, the supply means has a first temperature detecting means for detecting an internal atmosphere temperature, and the first temperature detecting means detects the internal atmosphere temperature. A first emergency cooling means for cooling the internal carbonized raw material when the temperature exceeds the set temperature is provided.

According to an eleventh aspect of the present invention, the discharge means according to the first or sixth aspect of the present invention is configured such that one end thereof communicates with the other end of the carbonization furnace in the cylinder axis direction and the other end is a discharge end of carbide. A transport cylinder disposed so as to have an ascending gradient from one end to the other end, transport means for transporting carbide to the discharge end through the transport cylinder, and cooling means for cooling carbide in the transport cylinder. Is to be provided.

According to a twelfth aspect of the present invention, the discharge means in the eleventh aspect of the present invention includes a second temperature detecting means for detecting an ambient temperature near the discharge end of the transfer cylinder, and a second temperature detecting means for detecting the ambient temperature. A second emergency cooling means for cooling the internal carbide when the set temperature exceeds the set temperature is provided.

The invention according to claim 13 is the first invention.
The discharge means in the invention according to the first aspect includes a chute cylinder which is communicated with the discharge end of the transport cylinder and extends downward, and a chute cylinder which is provided at each of a plurality of positions vertically separated from the chute cylinder. And a plurality of shutter valves for shutting off the inside so as to be openable and closable up and down.

[0019]

According to the above-mentioned structure, according to the first aspect of the present invention,
The carbonization furnace is composed of an inner cylinder and an outer cylinder which are arranged with an annular gap therebetween, and the two cylinders are mutually supported via support means, and the inner cylinder is an outer cylinder. Are relatively displaceable in the axial direction of the cylinder and relative rotational displacement in the circumferential direction is prevented. Therefore, even if the inner cylinder is thermally expanded or conversely cooled and shrunk, the inner cylinder is freely displaced relative to the outer cylinder in the cylinder axis direction without applying an unnecessary load to the outer cylinder. There is no danger of the adverse effects associated with the inner cylinder and the outer cylinder is formed with an annular space between the inner cylinder and the outer cylinder. Transmission is suppressed, and thermal expansion of the outer cylinder body itself is suppressed. On the other hand, since the relative rotational displacement in the circumferential direction is prevented by the support means, by rotating the outer cylinder, the rotational driving force is transmitted through the support means to rotate the inner cylinder. Will be In addition, by suppressing the thermal expansion of the outer cylinder, the transmission of the rotational driving force between the outer cylinder and the driving means is ensured, and the driving means for rotating the outer cylinder and the outer cylinder itself can be rotated. The simplification of the support mechanism for supporting the first and second members is achieved.

According to a second aspect of the present invention, the support means in the first aspect of the present invention comprises at least two or more convex guide members extending parallel to each other in the axial direction of the cylinder, and each of the convex guide members is arranged from both sides in the circumferential direction. When the inner cylinder body thermally expands or contracts, the convex guide member and the concave receiving member move along the convex guide member when the inner cylinder body thermally expands or contracts. While being relatively displaced in the direction, the rotational driving force from the outer cylinder is transmitted to the inner cylinder by the circumferential contact between the convex guide member and the concave receiving member. Therefore, the operation according to the first aspect of the present invention can be reliably obtained.

According to the third aspect of the present invention, a predetermined radial gap is formed between each convex guide member and each concave receiving member in the second aspect of the present invention. Even if the inner wall of the cylindrical body expands in the circumferential direction due to the thermal expansion as a result of the thermal expansion, the expansion may be absorbed by the gap and the function of the support means may be impaired. Therefore, the operation according to the second aspect of the present invention can be reliably obtained.

According to the fourth aspect of the present invention, in addition to the function of the second aspect of the present invention, even if the carbonization furnace is disposed so as to have a slight downward slope on the discharge means side, the pair of stopper pieces can be used. The relative positions of the inner cylinder and the outer cylinder in the cylinder axis direction are reliably maintained by the mutual contact.

According to a fifth aspect of the present invention, in addition to the function of the first aspect, a driving means for applying a rotational driving force to the outer cylinder is provided with a plurality of pins fixed to the outer peripheral surface of the outer cylinder. Since the member and the drive-side sprocket supported by the base and engaged with the pin member are provided, even if thermal expansion occurs in the outer cylinder, transmission of rotational driving force can be smoothly performed. Will be That is, for example, when the transmission of the rotational driving force is performed by meshing the gears, the meshing of the gears is of relatively high precision. However, according to the relatively loose meshing of the combination of the pin member and the sprocket, even if thermal expansion occurs in the outer cylinder body provided with the pin member, the transmission of the driving force may not be performed. It can be performed smoothly continuously. In addition, since the pin members are attached to each other so as to extend in parallel to the cylinder axis direction and longer than the thickness of the sprocket, even if the outer cylinder body undergoes thermal expansion in the cylinder axis direction, the meshing relationship with the sprocket is maintained. As a result, the driving force is reliably transmitted.

In the invention according to claim 6, the openings at both ends in the cylinder axis direction of the carbonization furnace are closed by end covers, respectively.
Each of the end covers is attached to the base via the restricting means. Since the peripheral wall of each of the end covers is externally fitted to the outer peripheral surface of the carbonizing furnace via a sealing member, relative displacement in the cylinder axis direction can be mutually performed while ensuring the hermeticity of the carbonizing furnace. become. Further, even if the end of the carbonization furnace expands or contracts outward in the cylinder axis direction due to thermal expansion and contraction, the peripheral wall portion protrudes outward from the end of the carbonization furnace in the cylinder axis direction. Since the end of the carbonization furnace can freely expand and contract, and the expansion and contraction is absorbed by the peripheral wall of the protruding portion,
There is no excessive pressing force acting on the supply means and discharge means connected to the end of the carbonization furnace. Moreover, even when the end cover itself thermally expands due to the heat in the carbonization furnace, the restricting means prevents the relative displacement of the outer side portions of the end covers in the cylinder axis direction, Since the relative displacement of the inner side portion in the cylinder axis direction is allowed, the end covers do not relatively displace outward in the cylinder axis direction, but only on the inner side, that is, on the carbonization furnace side. Only relative displacement. Therefore, in combination with the absorption of the thermal expansion at the end of the carbonization furnace in the end cover, an excessive pressing force acts on the supply means and the discharge means disposed on both sides in the cylinder axis direction. Is reliably prevented.

According to a seventh aspect of the present invention, the regulating means according to the sixth aspect of the present invention comprises an outer regulating means and an inner regulating means, and the outer part of each end cover is formed by the above-mentioned structure. The directions of the thermal expansion and contraction of the inner part are regulated by the outer regulation means by the inner regulation means, respectively.
The both-side regulating means is composed of a shaft body penetrating each end cover and the base, and a regulating hole through which the shaft body is inserted. The first regulating hole of the outer-side regulating means is a first shaft. Since it has the same width in the cylinder axis direction as the outer diameter of the body,
The relative displacement of the outer side portion in the cylinder axis direction is prevented by the contact between the regulating hole and the first shaft body. On the other hand, since the second regulating hole of the inner regulating means has a cylindrical axial width at least larger than the outer diameter of the second shaft body, the second shaft body moves in the second regulating hole in the cylindrical axial direction. The relative displacement in the cylinder axis direction of the inner side portion becomes possible to the extent that relative displacement is possible. Therefore, the operation according to the sixth aspect of the invention can be reliably obtained.

According to an eighth aspect of the present invention, in addition to the function of the sixth aspect of the present invention, a gas vent is formed in the discharge means, and the vent is closed and the internal pressure in the carbonization furnace is reduced. Since the damper is opened by the internal pressure when the pressure rises above the set pressure, the inside of the carbonization furnace is kept below the set pressure during the normal carbonization process in the carbonization furnace. The damper is closed, and the hermeticity of the carbonization furnace is ensured. On the other hand, when the internal pressure in the carbonizing furnace falls into an abnormal state exceeding the set pressure, the damper receives the internal pressure exceeding the set pressure and automatically opens to release the gas in the carbonizing furnace. The gas is discharged through the port and the internal pressure in the carbonization furnace is kept below the set pressure. Thereby, the safety of the carbonizing device is further enhanced.

According to the ninth aspect of the present invention, in addition to the function of the first or sixth aspect, the supply means includes a vertically extending chute cylinder and a plurality of vertically extending chute cylinders. Since a plurality of partitioning shutter valves are provided, the hermeticity in the carbonization furnace is improved. Moreover,
Since the plurality of chute cylinders are sequentially expanded from the upper side to the lower side so that the inner space cross-sectional area is sequentially increased, the chute cylinder body of the carbonized raw material supplied from the upper end of the chute cylinder body That is, the occurrence of clogging is prevented.

According to the tenth aspect of the present invention, the first aspect of the present invention is provided.
Alternatively, in addition to the effect of the invention according to claim 6, the supply means includes a first temperature detection means, and a second temperature cooling means for cooling the internal carbonized raw material when the internal temperature of the supply means detected by the first temperature detection means exceeds a set temperature. (1) Because the emergency cooling means is provided, before the internal temperature of the supply means rises to the combustion temperature of the carbonized raw material due to heat propagation accompanying the carbonization treatment in the carbonization furnace,
Since the carbonized raw material is cooled by the first emergency cooling means, it is possible to reliably prevent the carbonized raw material from burning on the supply means side. Along with this, it is not necessary to form the supply means with a heat-resistant material that can withstand the combustion of the carbonized raw material, so that cost reduction and simplification can be achieved.

According to the eleventh aspect of the present invention, the first aspect of the present invention is provided.
Or, in addition to the function of the invention according to claim 6, a transfer cylinder body in which the discharge means is communicated with the other end side in the cylinder axis direction of the carbonization furnace,
Since it is provided with a transporting means for transporting the carbide through the transport cylinder and a cooling means for cooling the carbide in the transport cylinder, extremely high-temperature carbide after the carbonization treatment is discharged to the outside by the cooling by the cooling means. It is cooled before being taken out and does not burn up even if it comes in contact with oxygen when taken out.

According to the twelfth aspect of the present invention, the first aspect of the present invention is provided.
In addition to the operation according to the first aspect of the present invention, the discharging means includes a second temperature detecting means for detecting an internal temperature near the discharge end of the transfer cylinder, and a carbonized material when the detected internal temperature exceeds a set temperature. The second emergency cooling means is provided with the second emergency cooling means, even if the carbide is still in a high temperature state even when cooled by the cooling means in the invention according to claim 11. Emergency cooling. Thereby, the burning of the carbide itself when taken out to the outside and the burning of the carbide as a fire are reliably prevented, and the safety on the side of taking out the carbide from the carbonization device is further enhanced.

According to the thirteenth aspect of the present invention, in addition to the effect of the eleventh aspect of the present invention, the discharging means includes:
Since it is provided with a chute cylinder extending downward communicated with the discharge end of the transfer cylinder, and a plurality of shutter valves for opening and closing the chute cylinder at a plurality of vertical positions, the discharge means side of the carbonization furnace The airtightness of is improved.

[0032]

Embodiments of the present invention will be described below with reference to the drawings.

<Configuration of Embodiment> -Overall Configuration- FIG. 1 is an overall configuration diagram of a carbonizing apparatus according to an embodiment of the present invention. In the drawing, 1 is a cylindrical carbonizing furnace for performing carbonization, 2 is a base, 3 is a supply means for supplying a carbonizing raw material to the carbonizing furnace 1, and 4 is a carbide generated in the carbonizing furnace 1. A discharge means 5 for discharging, a driving means for driving the carbonization furnace 1 to rotate around the cylinder axis X, a smoke discharge processing means 6 for detoxifying smoke generated by the carbonization processing, and a cooling means 7a for each part Is a cooling water supply system that supplies cooling water for emergency cooling, 7b is an emergency cooling water supply system that supplies cooling water for emergency cooling to each part, and 8 is a fuel supply system that supplies fuel for combustion.

In the carbonizing furnace 1, the cylindrical shaft X is connected to the discharging means 4.
Is positioned so that it has a slight downward slope toward
A plurality of rollers 21, 21... Provided on a base 2 so as to sandwich the carbonizing furnace 1 from both lower sides in the cross-sectional direction are rotatably supported around the cylindrical axis X. Then, the supply means 3 is supplied to the carbonization furnace 1 by the cylinder shaft X of the carbonization furnace 1.
One end in the direction (left end in FIG. 1; hereinafter, referred to as left end)
The discharge means 4 is connected to the other end side (right end side in the figure; hereinafter, right end side).

Hereinafter, the carbonization furnace 1, each means 3, 4, 5, 6,
The configuration of each system 7a, 7b, 8 will be described in detail.

-Carbonization Furnace 1-The carbonization furnace 1 is composed of a carbonization furnace main body 11, a pair of end covers 12 and 13 for closing both ends in the direction of the cylinder axis X, and the entirety of the three members 11, 12, and 13. And an overall cover 14 for covering.

(Carburizing furnace main body 11) The above-described carbonizing furnace main body 11
As shown in FIG. 2, the inner cylindrical body 15, the outer cylindrical body 16,
And support means 17 for supporting and integrating the two. The inner cylindrical body 15 and the outer cylindrical body 16 are coaxial with the cylindrical axis X, and the outer cylindrical body 16 surrounds the inner cylindrical body 15 through an annular gap 18 having a predetermined interval in a radial direction. Are supported by the support means 17. A number of stirring blades 151, 151,... Protruding radially inward are fixed to the inner peripheral surface of the inner cylindrical body 15, and
Outer peripheral surface 1 at each position on both left and right sides in the cylinder axis X direction of the outer cylinder 16
A belt-shaped ring-shaped guide rail 162 against which each of the rollers 21 (see FIG. 1) abuts and a pair of a pair 61 for detecting the in-furnace temperature at the supply side and the discharge side position of the carbonization furnace 1 are provided at 61. Lead wires 163 from a thermocouple (not shown) of the in-furnace temperature detecting means 91a and 91b are provided. The above-mentioned in-furnace temperature detecting means 91a, 91b are provided with the above-mentioned thermocouple, the lead wire 163, and the contacts 911a, 911b provided on the base 2 side and taking out the detection current by contacting the lead wire 163.
It is composed of

As shown in FIGS. 3 to 5, the support means 17 includes a plurality of convex guide members 171, 171,...
, And a pair of stopper pieces 173, 174. Each of the convex guide members 171 is provided with a mounting piece 175 (FIG. 4) so as to extend at substantially equal intervals in the circumferential direction of the inner peripheral surface 164 of the outer cylindrical body 16 (see FIG. , See FIG. 5). On the other hand, each of the concave receiving members 172 is constituted by a pair of holding pieces 176 and 176 (see FIG. 4) having an L-shaped cross section. The inner cylinder 1 is placed so that it is loosely sandwiched from both sides in the circumferential direction.
5 is fixed to the outer peripheral surface 152. In addition, each of the convex guide members 171 described above is
A radial gap 177 at a predetermined interval is formed in the radial direction between the inner cylindrical body 15 and the concave receiving member 172 so that a radial relative displacement between the inner cylindrical body 15 and the outer cylindrical body 16 is allowed by the radial gap 177. Has become. 3 to 5, reference numeral 181 denotes a heat insulating material such as rock wool, and the heat insulating material 181 fills the annular gap 18 to block heat propagation between the inner cylindrical body 15 and the outer cylindrical body 16. It has become.

The pair of stopper pieces 173, 1
74 (see FIG. 5) are the respective convex guide members 1
In the position where the first stopper piece 1 does not interfere with
73 is an outer peripheral surface 152 at a center position of the inner cylindrical body 15 in the cylinder axis X direction.
From the outer cylindrical body 16 while extending a predetermined length in the circumferential direction and projecting outward in the radial direction.
Is fixed so as to extend a predetermined length in the circumferential direction from the inner circumferential surface 164 at the center position in the cylinder axis X direction and protrude radially inward.
Then, the first stopper piece 173 abuts against the second stopper piece 174 from the right side in the cylinder axis X direction, and the cylinder axis X
In the carbonization furnace main body 11 disposed on the right side in the downward slope, the inner cylindrical body 15 is prevented from shifting to the right in the cylindrical axis X direction with respect to the outer cylindrical body 16. In addition, both stopper pieces 173,
The distance between the protruding end of the second stopper 174 having a large protruding length and the outer peripheral surface 152 of the inner cylindrical body 15 is set to at least the same size as the radial gap 177, and the second stopper piece Reference numeral 174 is fixed to the inner peripheral surface of a support ring 54 for fixing pin members 57, 57,...

(Supply Side End Cover 12) As shown in detail in FIG. 6, the supply side end cover 12 has a peripheral wall 121 fitted on the left end side of the carbonization furnace main body 11, and a peripheral wall 121. 121 is an end wall portion 122 for closing an outer end side of the cylinder axis X direction.
And the outer peripheral surface of the carbonizing furnace main body 11 (the outer peripheral surface 1 of the outer cylindrical body 16) fixed to the inner end side of the peripheral wall portion 121 in the cylinder axis X direction.
61) and an annular seal member 123 for sealing between the base 2 and the regulating means 19 to be described later with respect to the base 2.
And a rotation stopper 124 so as not to rotate. The outer end side of the peripheral wall portion 121 in the cylinder axis X direction is disposed so as to project outward from the left end of the carbonization furnace main body 11 in the cylinder axis X direction. A cylindrical axial gap 125 having a width that allows the thermal expansion of the carbonization furnace main body 11 is formed therebetween.

An opening / closing door 126 for maintenance is provided at a lower position of the peripheral wall portion 121.
The first combustion burner 2 for heating as shown in FIG.
0a, a later-described feeding cylinder 33 of the feeding means 3, and a damper 921 for an air recirculation pipe. The first combustion burner 20a burns the fuel supplied from the fuel supply system 8 so that the combustion heat of the carbonization furnace 1
The inside is heated. The damper 92
Numeral 1 is provided on the downstream end side of the air circulation line 92 (see FIG. 1). An air valve 922 for adjusting the air flow rate is interposed at an intermediate position of the air recirculation line 92.

As shown in FIGS. 6 and 7, the rotation stopper 124 has a projecting piece 124a projecting downward from the lower end position of the peripheral wall portion 121, and the projecting piece 124a from the base 2 side and from both sides in the circumferential direction. It has a pair of holding pieces 124b, 124b projecting upward so as to hold the end cover 12 so as to prevent the end cover 12 from rotating relative to the base 2.

Further, on both sides of the end cover 12 in the horizontal direction perpendicular to the cylinder axis X, the base 2 supports the support portions 22, 22.
(See FIG. 1 and FIG. 7).
The end covers 12 are supported on the end covers 2 and 22 via regulating means 19, respectively. As shown in FIG. 8, brackets 125a and 125b protrude outward from the outer side part and the inner side part, which are separated from each other in the cylinder axis X direction, at the above-mentioned horizontal positions on the end cover 12, respectively. The brackets 125a and 125b are fixed, and the first brackets 125a and 125b penetrate through the brackets 125a and 125b and the horizontal pieces 221 of the support portions 22.
And are connected by connecting bolts 191a and 191b as a second shaft body. Both brackets 125a, 1
As shown in FIG. 9, auxiliary plates 126a, 126b are integrally attached to the lower side of the bracket 25b by screws 127, 127,.
A first regulating hole 192a is formed to penetrate through and the additional plate 126a, and similarly, a second regulating hole 192b is formed to penetrate the inner bracket 125b and the additional plate 126b.

The first regulating hole 192a has a width in the cylinder axis X direction substantially equal to the outer diameter of the connecting bolt 191a, and a horizontal length perpendicular to the cylinder axis X is equal to the length of the end cover. The dimension Da is set to allow an expected maximum dimension of thermal expansion and contraction in the radial direction of No. 12. Further, the second regulating hole 192b is provided with the connecting bolt 19 in the cylinder axis X direction.
1b and the cylinder axis X of the end cover 12
Dimension L that allows the expected maximum dimension of thermal expansion and contraction in the direction
b, the dimension Db allowing the expected maximum size of the thermal expansion and contraction of the end cover 12 in the radial direction in the horizontal direction.
Is formed in a circle, an ellipse, or an oval. Then, the connection bolts 191a and 191b pass through the horizontal piece 221 and the restriction holes 192a and 192.
b, and is fixed by the double nuts 194a, 194b so as not to fall through the cover plates 193a, 193b covered on the brackets 125a, 125b.

As a result, the brackets 125a and 125b on the side of the end cover 12 are connected to the side piece 221 and the cover plate 19, respectively.
3a and 193b can be displaced relative to each other within the range of each regulation hole 192a and 192b. That is, the outer side portion of the end cover 12 is connected to the connecting bolt 19.
1a and the first restriction hole 192a, the direction of the cylinder axis X (FIG. 8).
Of the end cover 12 is prevented only in the horizontal direction Y (horizontal direction in FIG. 8) perpendicular to the cylinder axis X. The connection bolt 191b and the second restriction hole 192b allow a relative displacement in both the cylinder axis X direction and the horizontal direction Y by a predetermined amount. While the direction of the thermal expansion in the direction of the cylinder axis X is determined by using the outer portion as a fixed reference point.
The direction is restricted only to the inner side, that is, only to the carbonization furnace main body 11 side.

The connecting bolt 191a and the first restricting hole 192a constitute an outer restricting means 19a.
The connection bolt 191b and the second regulating hole 192b constitute an inner regulating member 19b.

(Discharge-side end cover 13) As shown in detail in FIG. 10, the discharge-side end cover 13 includes a peripheral wall portion 131 fitted on the right end side of the carbonization furnace main body 11, and a peripheral wall portion 131. End wall 132 that closes the outer end side of cylinder axis X direction
The outer peripheral surface of the carbonizing furnace main body 11 (the outer peripheral surface 1 of the outer cylindrical body 16) fixed to the inner end side of the peripheral wall portion 131 in the cylinder axis X direction.
61), and an annular seal member 133 for sealing between them. Then, the discharge side end cover 1
Reference numeral 3 is attached to the base 2 via a restricting means (not shown) having the same configuration as the restricting means 19 in the supply-side end cover 12 and rotation stoppers 134 so as not to rotate. The outer end side of the peripheral wall portion 131 in the cylinder axis X direction is disposed so as to protrude outward from the right end of the carbonization furnace main body 11 in the cylinder axis X direction. A cylindrical axial gap 135 having a width allowing the thermal expansion amount of the carbonizing furnace main body 11 is formed therebetween, and a carbide discharging hopper 136 is formed below the end cover 13.

As shown in FIG. 11, the end wall portion 132 has a smoke discharge pipe 61 of the smoke exhaust treatment means 6 communicating with the inside of the carbonization furnace main body 11, and a second combustion for heating in the carbonization furnace 1. Burner 2
0b, a maintenance opening 137 and a lid 138 for closing and opening the opening 137 are provided. Are in communication. A swing gate 139 is provided on the side of the carbonization furnace main body 11 of the discharge hopper 136 to separate the internal space of the hopper 136 from the internal space of the inner cylinder 15, and the swing gate 139 is opened and closed by an actuator 140. It is supposed to be.

The rotation stopper 134 is a projecting piece 1 having the same configuration as the rotation stopper 124 in the supply-side end cover 12.
34a, and a pair of sandwiching pieces 134b, 134b sandwiching the projecting piece 134a from both sides in the circumferential direction, so as to prevent relative rotation displacement of the discharge side end cover 13 with respect to the base 2. .

Then, the outer side portion and the inner side portion of the end cover 13 in the cylinder axis X direction are different from the support portions 23, 23 rising from the base 2 in the case of the supply side end cover 12. It is connected and supported in a state where the direction of thermal expansion is regulated by the regulating means 19 of the same configuration so as to be on the side of the carbonization furnace main body 11.

In FIG. 11, reference numerals 141 and 141 denote viewing windows, so that the state inside the carbonization furnace 1 can be visually recognized.

-Driving Means 5-As shown in FIG. 1, the driving means 5 includes a driving motor 51,
A sprocket 52 is rotationally driven by the drive motor 51, and a pin transmission body 53 meshed with the sprocket 52 is provided. The drive motor 51 and the sprocket 52 are attached to the base 2, and the pin transmission body 5
3 is attached to the outer peripheral surface of the carbonization furnace main body 11.

As shown in FIGS. 5 and 12, the pin transmission body 53 has a support ring 54 interposed and fixed at a substantially central position of the outer cylinder 16 and a predetermined direction in the cylinder axis X direction of the support ring 54. A pair of annular flange members 56, 56 fixed by bolts 55, 55,... So as to project radially outward from both spaced positions, and a circular shape supported by the pair of flange members 56, 56 .. Are composed of a large number of pin members 57, 57,. Are arranged at regular intervals in the circumferential direction so as to loosely mesh with the sprocket 52, and
Each of the sprockets 5 is parallel to each other in the cylinder axis X direction.
2 so as to extend longer than the thickness of No. 2.

As shown in FIG. 1, a position-controlling guide flange member 58 protruding radially outward is fixed to the outer peripheral surface of the carbonizing furnace main body 11 adjacent to the pin transmitting body 53. The guide flange member 58 is fitted between both flanges of the guide roller 59 having both flanges fixed to the base 2. This prevents the displacement of the outer cylinder 16 with respect to the base 2 due to the downward slope of the right side. In addition, the center position of the carbonizing furnace main body 11 in the cylinder axis X direction is regulated so as not to be displaced relative to the base 2 in the cylinder axis X direction even when thermal expansion and contraction occur. The pin members 57, 57,... And the sprocket 52
Is prevented from shifting in the direction of the cylinder axis X more than the limit.

-Supplying means 3- As shown in detail in FIG. 6, the supplying means 3 includes a chute cylinder 31 vertically arranged, a fixed quantity supply means 32 provided on the chute cylinder 31, Shoot cylinder 31
The feeder is connected to the lower end of the feeder, extends laterally toward the carbonization furnace 1, and has a tip that penetrates the supply-side end cover 12 and is supported by the base 2 so as to be positioned at the inner bottom position of the carbonization furnace main body 11. The supply cylinder 33 includes a screw conveyor 34 disposed in the supply cylinder 33.

The chute cylinder 31 is provided with a pair of shutter valves 35a and 35b which are arranged at predetermined intervals in the vertical direction and which can open and close the internal space of the chute cylinder 31, so that three chute cylinders 311, 31 are provided. 312 and 313 are defined. The pair of shutter valves 35a and 35b ensure the airtightness of the supply means 3 side of the carbonization furnace 1 and the three chute cylinder portions 311, 312, 31
The cross-sectional area of each internal space of A3, A2, A3
The carbonized raw material is formed so as to increase stepwise, thereby preventing the carbonized raw material from being clogged. A hopper or a conveyor (not shown) is connected to the upper end of the chute cylinder 31 so that the carbonized raw material is introduced into the chute cylinder 31.

The fixed amount supply means 32 includes a pair of the shutter valves 35a and 35b and the respective shutter valves 35a and 35b.
and a pair of level sensors 36a and 36b which are provided in the lower chute cylinders 312 and 313 and detect the presence or absence of the carbonized material inside, for example, constituted by a photoelectric tube sensor. The upper level sensor 36a is disposed at the upper end of the chute cylinder 312 and
12 detects the height of the carbonized raw material and detects the lower level sensor 3
Reference numeral 6b is disposed at the lower end position of the chute cylinder 313 so as to detect the height of the carbonized raw material in the chute cylinder 313. Then, the quantitative supply means 32 opens the upper shutter valve 35a, closes the lower shutter valve 35b, stores the carbonized material on the lower shutter valve 35b, and then closes the upper shutter valve 35a in reverse. State, the lower shutter valve 35b is opened and both shutter valves 35a, 35
The carbonized material between b is sent to the screw conveyor 34,
By repeating this, a fixed amount of the carbonized raw material is supplied. At this time, the lower shutter valve 3
The opening operation of 5b is performed in response to a detection signal from the lower level sensor 36b, and the closing operation of the upper shutter valve 35a is performed in response to a detection signal from the upper level sensor 36a.

The chute cylinder 313 is provided with a first emergency cooling means 37. The first emergency cooling means 37 is provided with cooling water from the lowermost end of the chute cylinder 313 to the inside. Cooling water nozzle 37 for injecting water
1, a control valve 71 for controlling the supply of cooling water from the emergency cooling water supply system 7b to the first cooling water nozzle 371, and an internal ambient temperature provided at the lowermost position of the chute cylinder 313. As a first temperature detecting means for detecting
And a temperature sensor 372. Then, the first emergency cooling means 37 opens the control valve 71 when the temperature detected by the first temperature sensor 372 reaches a preset temperature set as a temperature corresponding to the ignition temperature of the carbonized raw material. The cooling water is injected from the first cooling water nozzle 371 to the carbonized raw material located at the lowermost position of the chute cylinder 313.

The screw conveyor 34 has a sprocket 340 fixed to an end connected to a drive motor (not shown) via a chain, and is driven to rotate by the rotation of the drive motor. And, the blades 341, 341,... Of the screw conveyor 34 are:
The pitch in the axial direction of the screw conveyor 34 is formed so as to gradually increase from the chute cylinder portion 313 side toward the carbonization furnace 1, whereby the carbonized raw material that is conveyed in the screw conveyor 34 is formed. To prevent clogging.

In FIG. 6, reference numeral 314 denotes a maintenance opening / closing door.
The screw conveyor 34 is provided in the vicinity of the boundary between the transfer cylinder 3 and the transfer cylinder 33 and faces the chute cylinder 313.
In the case where the carbonized raw material is clogged, it can be eliminated. In the figure, reference numeral 38 denotes a half-moon-shaped embankment. The embankment 38 is attached to the leading end of the transfer cylinder 33 on the carbonization furnace 1 side so as to close the lower half of the inner cylinder 15. The carbonized raw material or carbide in the inner cylindrical body 15 is prevented from spilling to the supply-side end cover 12 side.

As shown in detail in FIG. 10, the discharging means 4 is provided with an upward slope from one end, which is connected to the lower end of the discharging hopper 136 of the discharging side end cover 13 in a sealed state, toward the other end. Transport cylinder 41 as a cylinder disposed so that
A screw conveyor 42 disposed as a conveying means for conveying the carbide to the other end, a chute cylinder 43 communicated with the other end of the conveying cylinder and extending downward, A cooling means 44 for cooling the carbide, and a second emergency cooling means 4 for the carbide in the transport cylinder 41
5 is provided.

One end of the transport cylinder 41 is connected to the lower end of the hopper 136 via a flexible joint 411 and a vertical connection cylinder 412. The connection cylinder 412 has an opening 413 for maintenance and A lid 414 is provided to close and open this. An opening 4 as a gas vent for maintenance and internal pressure adjustment is provided at an intermediate position in the longitudinal direction of the transport cylinder 41.
15 and a damper 416 for opening and closing the same. The damper 416 is kept closed at all times against the internal pressure in the carbonization furnace 1 during the normal carbonization process, and opens when the internal pressure exceeds the set pressure corresponding to the pressure at the time of abnormal rise. It is supposed to be.

The screw conveyor 42 has a sprocket 421 supported at both ends of the transport cylinder 41 and provided at the other end thereof via a chain 422 to drive motor 4.
23, and is driven to rotate by the operation of the drive motor 423. Further, the blades 424, 424,...
Similarly to the screw conveyor 34, the pitch in the axial direction is formed so as to gradually increase from the one end side to the other end side. That is, this is prevented.

The chute cylinder 43 is provided with a pair of shutter valves 46a and 46b, which are arranged at predetermined intervals in the vertical direction and open and close the internal space of the chute cylinder 43, so that three chute cylinder parts 431 and 432 are provided. , 433. The pair of shutter valves 46a and 46b ensure the hermeticity of the discharge means 4 side of the carbonization furnace 1 and the three chute cylinder portions 431, 432 and 433.
Are formed so that the cross-sectional area of each internal space gradually increases from the top in the order of B1, B2, and B3 to prevent the clogging of carbides. The pair of shutter valves 46a and 46b are controlled to be opened and closed based on a detection signal of the presence or absence of carbide by a level sensor 47 disposed at the upper end position of the intermediate chute cylinder portion 432. That is, the first shutter valve 46a is opened, the second shutter valve 46b is closed, and the first shutter valve 46a is turned on in response to a detection signal indicating that carbide has accumulated in the chute cylinder portion 432 up to the level sensor 47 position. The closed state, the second shutter valve 46b is opened, and the chute cylinder portion 433 is set.
From the lower end of the container. Then, the first shutter valve 46a is again opened and the second shutter valve 46b is closed, and the above control is repeated. In this way, one of the shutter valves 46a or 46b is closed to ensure the above-mentioned hermeticity.
In FIG. 10, reference numeral 434 denotes an opening for maintenance;
Is a lid that closes the opening 434 so that it can be opened and closed.

The cooling means 44 is provided with a first cooling water nozzle 441 for injecting cooling water from the cooling water supply system 7a from the upper and lower middle positions of the connecting cylinder 412 to the inside.
And a second for injecting the cooling water from the cooling water supply system 7a from two intermediate positions in the longitudinal direction of the transport cylinder 41 toward the inside.
And the first to third cooling water nozzles 441, 4 from the cooling water supply system 7a.
First cooling water supply pipe 70 for supplying cooling water to 42,443
d. The first cooling water supply pipe 70
By switching the open / close valve 72 interposed in the open state, the cooling water is injected from the cooling water nozzles 441, 442, and 443 to the high-temperature carbide immediately after the carbonization processing in the transport cylinder 41, and the carbide is discharged. It is designed to cool down. In FIG. 10, reference numeral 444 denotes a water tank connected to the lowermost position at one end of the transport cylinder 41. The water tank 444 stores water after cooling the above-mentioned carbide and discharges the water to the outside. ing.

Further, the second emergency cooling means 45 injects cooling water from the emergency cooling water supply system 7b from the position facing the chute cylinder 43 at the other end of the transport cylinder 41 toward the inside. A cooling water nozzle 451, a control valve 73 for controlling the supply of cooling water from the emergency cooling water supply system 7 b to the second cooling water nozzle 451, and a control valve 73 provided at the other end of the transfer cylinder 41. The second to detect the internal ambient temperature
A second temperature sensor 452 as temperature detecting means. Then, similarly to the first emergency cooling means 37, the second emergency cooling means 45 is used when the temperature detected by the second temperature sensor 452 reaches a preset temperature set as a temperature corresponding to the ignition temperature of the carbide. The control valve 73 is opened to inject cooling water to the carbide discharged from the chute cylinder 43 from the second cooling water nozzle 451.

As shown in FIG. 1, the flue gas treatment means 6 comprises a smoke discharge pipe 61 communicated with the upper part of the discharge side end cover 13 and a carbonization furnace by the smoke discharge pipe 61. And a cyclone 62 for separating and recovering pulverized coal contained in the flue gas derived from
An afterburner 63 for combusting the smoke containing the combustible gas after the pulverized coal has been removed in Step 2 and a smoke intervening in the middle of the smoke discharge pipe 61 to suck the smoke from the carbonization furnace 1 and send it to the afterburner 63 And a blower 64 for supplying.

In addition, the afterburner 63 is connected to a leaked smoke outlet pipe 65 that is communicated with the space between the carbonization furnace main body 11 and the entire cover 14, and is interposed in the leaked smoke outlet pipe 65. The smoke leaked into the space from between the outer cylinder 16 and the seal members 123 and 133 by the blower 66 is sent to the afterburner 63.

The cyclone 62 is provided with a third emergency cooling means 67. The third emergency cooling means 67
A third temperature sensor 611 provided on the smoke outlet pipe 61 at a position upstream of the cyclone 62, a third emergency cooling water supply pipe 70c for supplying cooling water from the emergency cooling water supply system 7b to the cyclone 62, This third emergency cooling water supply pipe 70
c and a control valve 74 interposed therebetween. The third emergency cooling means 67 opens the control valve 74 when the temperature detected by the third temperature sensor 611 reaches a preset temperature set as a temperature corresponding to the ignition temperature of the pulverized coal, The cyclone 62 is urgently cooled by supplying cooling water from the third emergency cooling water supply pipe 70c.

The operation of the blower 64 is controlled so as to maintain the inside of the carbonization furnace 1 at a slightly negative pressure by the suction operation. Further, a second cooling water supply pipe 70e for supplying cooling water from the cooling water supply system 7a is connected to the blower 64 via an opening / closing valve 75. The bearing of the blower 64 is always cooled.

Further, the afterburner 63 has a third combustion burner 631.
The fuel supply system 8 supplies heavy oil (heavy oil A), vaporized petroleum gas, and combustion air as described later. The afterburner 63 completely burns the combustible gas in the flue gas to make it pollution-free, and discharges the burned exhaust gas to the atmosphere. The supply amounts of the above air and heavy oil are controlled based on the detected value of the combustion temperature.

Although not shown, the smoke outlet pipe 61 has the same structure as the opening 415 and the damper 416.
A gas vent for adjusting the internal pressure and a damper for opening and closing the gas vent are provided.

-Cooling water supply system 7a and emergency cooling water supply system 7b-The cooling water supply system 7a is provided with a water source 76 such as a water tank, and cooling means for discharging cooling water from the water source 76 via a pump 77 in the discharging means 4. There is provided a first cooling water supply pipe 70d for supplying the cooling water to the blower 64 of the smoke exhaust processing means 6 via the pump 77. During the carbonization operation in the carbonization furnace 1, the open / close valve 7 provided in each of the cooling water supply pipes 70d and 70e is provided.
2 and 75 are normally opened, and the cooling water is
4 and the blower 64 are always in a supply state, so that the carbide in the discharge means 4 and the bearing of the blower 64 are always cooled.

The emergency cooling water supply system 7b supplies the above-mentioned water source 76 and a first emergency cooling water supply which supplies cooling water from the water source 76 to the first emergency cooling means 37 of the supply means 3 via a pump 78. A pipe 70a, a second emergency cooling water supply pipe 70b for supplying cooling water to the second emergency cooling water supply means 45 of the discharging means 4 by the pump 78, and a cyclone of the smoke exhaust processing means 6 for cooling water by the pump 78. And a third emergency cooling water supply pipe 70c that supplies the cooling water to the second emergency cooling water supply pipe 70c. The control valves 71, 73, 74 interposed in the emergency cooling water supply pipes 70a, 70b, 70c are normally controlled to be closed, while the temperature sensors 372, 452, 611 are controlled.
The control valves 71, 73, and 74 are opened to supply the cooling water to the emergency cooling water supply means 37 and 45 and the cyclone 62 when an abnormal situation occurs in which the detected value exceeds a predetermined set temperature. It has become.

-Fuel Supply System 8-The fuel supply system 8 comprises three types of supply systems of heavy oil, vaporized petroleum gas, and combustion air.

The fuel oil supply system includes a fuel oil tank 80, an oil pump 81 for supplying fuel oil from the fuel oil tank 80,
A first fuel supply pipe 80a for supplying heavy oil from the oil pump 81 to the first combustion burner 20a via a first control valve 82a, and supplying the heavy oil to the second combustion burner 20b via a second control valve 82b. The second fuel supply pipe 80b and the third combustion burner 63 through the third control valve 82c.
And a third fuel supply pipe 80c that supplies the fuel to the first fuel supply pipe 80c.

The vaporized petroleum gas supply system includes a liquefied propane gas (LPG) cylinder 83 and an LPG cylinder 83.
To the first fuel supply pipe 80a via the first opening / closing valve 84a, and to the second fuel supply pipe 80b via the second opening / closing valve 84b. A supply pipe 83b for supplying the gaseous petroleum gas to the third fuel supply pipe 80c via a third opening / closing valve 84c is provided.

Further, the air supply system includes a first air valve 86a for adjusting the flow rate of the air introduced by the blower 85 to the first fuel supply pipe 80a to a predetermined amount, and a first air valve 86b for the air supplied to the first fuel supply pipe 80b. A second air valve 86b for adjusting the flow rate of air supplied to the fuel supply to a predetermined amount, and a third air valve 86c for adjusting the flow rate of air supplied by the blower 87 to the third fuel supply pipe 80c to a predetermined amount. I have.

The first to third fuel supply pipes 80a, 80b, 80c for the above-mentioned heavy oil, gasified petroleum gas and air.
Is shown and described as the same conduit for convenience,
In practice, heavy oil, vaporized petroleum gas, and air are individually supplied to each combustion burner 20a, 20b, 631.

In the fuel supply system 8, each open / close valve 84a, 84b, 84c in the vaporized petroleum gas supply system
And each control valve 82a, 82b, 82 in the heavy oil supply system
Opening and closing with c is performed as follows.
That is, the first to third combustion burners 20a, 20b, 63
1 at the start of ignition, the control valves 82a, 82b, 8
2c is closed, while each open / close valve 84a, 84
The b and 84c are opened, and the combustion burners 20a, 20b and 631 are ignited and burned by the gasified petroleum gas. And, after the start of ignition, if the combustion becomes stable,
Conversely, each of the control valves 82a, 82b, 82c is opened, while each of the on-off valves 84a, 84b, 84c is closed.
The combustion control of a, 20b, 631 is performed.

This combustion control is based on the first control valve 82a.
The first air valve 86a is connected to the second control valve 82 based on the detection value of the supply-side in-furnace detecting means 91a of the carbonization furnace 1.
b and the second air valve 86 b
b, and based on the third control valve 82c
And the third air valve is a temperature sensor 6 of the afterburner 63.
Based on the detected value of 32, the opening degree is changed and adjusted so that the carbonization temperature in the carbonization furnace 1 or the combustion temperature in the afterburner 63 becomes a predetermined temperature. The first control valve 82a and the first air valve 86a, and the second control valve 82b and the second air valve 8
6b is adjusted according to the temperature detection values of the supply-side in-furnace temperature detecting means 91a and the discharge-side in-furnace temperature detecting means 91b. The supply side and the discharge side are controlled so as to be the same, whereby uniform carbonization processing is performed on the supply side and the discharge side in the carbonization furnace 1.

In heating the supply side of the carbonization furnace 1 by the first combustion burner 20a, the air valve 9
The opening degree of 22 is adjusted based on the detected value of the high temperature tendency of the discharge-side in-furnace temperature detecting means 91b, and the smoke leaking into the space between the entire cover 14 and the carbonizing furnace main body 11 is It is designed to recirculate to the supply side.

-Operation / Effects of the Embodiment- In the embodiment having the above-described structure, waste wood or the like is supplied as a carbonization raw material from the chute cylinder 31 of the supply means 3 and a fixed amount of a pair of shutter valves 35a and 35b is provided. Supply means 3
2, the waste wood and the like are supplied to the supply side of the carbonization furnace main body 11 by the screw conveyor 34 in a fixed amount. At this time, as the chute cylinder 31 moves downward, the inner space cross-sectional area is sequentially increased to A1, A2, A3, so that the carbonized material in the chute cylinder 31 can be prevented from being clogged. The carbonization furnace body 11 in which the pitch of each blade 341 of the screw conveyor 34 is on the front side in the traveling direction.
Since it is increased toward the side, it is possible to prevent the carbonized raw material in the transport cylinder 33 from being clogged. In addition, since one of the pair of shutter valves 35a and 35b is kept closed, the hermeticity of the carbonization furnace main body 11 can be ensured. In addition, in the carbonization process, even if high heat in the carbonization furnace main body 11 is transmitted to the supply means 3 side through the transfer cylinder 33, the internal temperature reaches the ignition temperature of the carbonized raw material due to the propagated heat. (1) Since the cooling water is injected from the emergency cooling means 37, ignition and combustion of the carbonized material in the supply means 3 due to the heat propagation can be reliably prevented, and the supply means It is not necessary to form the chute cylinder 31, the transport cylinder 33, and the like constituting 3 from a heat-resistant material that can combat the combustion of the carbonized raw material, and cost reduction and simplification can be achieved.

In the carbonization process, the carbonization furnace body 11
Pair of combustion burners 20a, 20b on the supply side and the discharge side of
As a result, the inside of the carbonization furnace main body 11 is heated from both sides in the cylinder axis X direction, and the combustion is controlled so that both sides in the cylinder axis X direction have the same carbonization temperature. Can be. Even if the heat effect of extremely high heat (for example, 500 ° C. to 1000 ° C.) due to the carbonization process acts on the carbonization furnace main body 11, the carbonization furnace main body 11 is disposed across the annular gap 18 filled with the heat insulating material 181. Due to the double pipe structure of the inner cylinder 15 and the outer cylinder 16, heat transfer to the outer cylinder 16 can be greatly reduced, and the thermal expansion of the outer cylinder 16 itself can be greatly reduced. Can be suppressed. Since the end covers 12 and 13 are externally fitted on both ends of the outer cylinder 16 in the cylinder axis X direction so as to be relatively displaceable in the cylinder axis X direction, the above-mentioned thermal expansion is greatly suppressed. Interference with other components due to the thermal expansion of the outer cylinder 16 can be prevented, and adverse effects such as excessive generation of pressing force due to the interference can be eliminated. Moreover, a large number of pin members 57, 5 attached around the outer cylindrical body 16 in a state of being extended in parallel with each other in the direction of the cylindrical axis X and long.
Since the rotational drive force from the drive motor 51 is applied by relatively loose meshing of the sprockets 52 with each other, the meshing relationship with the sprockets 52 is maintained even under some thermal expansion. A roller that can reliably and continuously function to transmit the rotational driving force between the carbonizing furnace 1 and the driving means 5, simplifies the driving means 5, and rotatably supports the outer cylinder 16 itself. The support mechanism such as 21, 21,... Can be simplified.

The inner cylinder 15 can be displaced relative to the outer cylinder 16 in the direction of the cylinder axis X by the respective convex guide members 171 and the respective concave receiving members 172 of the support means 17, and can be moved in the circumferential direction. Even if the inner cylinder 15 is thermally expanded or conversely cooled and contracts, the inner cylinder 15 is freely displaced relative to the outer cylinder 16 in the cylinder axis X direction because the relative rotational displacement is supported. Unnecessary load is not applied to the outer cylinder body 16, and it is possible to prevent adverse effects due to a difference in thermal expansion between the inner cylinder body 15 and the outer cylinder body 16. In addition, since a predetermined radial gap 177 is formed between each of the convex guide members 171 and each of the concave receiving members 172, even if the inner cylindrical body 15 expands in the radial direction due to thermal expansion, And no unnecessary load is applied to the outer cylinder 16, the supply means 3 or the discharge means 4.
It is possible to prevent the occurrence of adverse effects due to the difference in thermal expansion between 5 and 16. In addition, at this time, the end covers 12, 13
Are externally fitted to the outer peripheral surface of the outer cylindrical body 16 of the carbonization furnace main body 11 via the sealing members 123 and 133, so that the sealing performance of the entire carbonization furnace 1 can also be ensured. . On the other hand, since the relative rotational displacement of the inner cylinder body 15 in the circumferential direction is prevented by the support means 17, the rotational driving force of the outer cylinder body 16 is transmitted through the support means 17 to rotate the outer cylinder body 16. The body 15 can be rotated, and the carbonized raw material inside can be reliably stirred and rotated to the discharge side with the rotation.

Further, even if the carbonizing furnace 1 is disposed so as to have a slightly downward slope on the discharge means 4 side as a whole in order to promote the above-mentioned fine advance of the carbonized raw material, a pair of stopper pieces 173 and 173 are provided. The relative positions of the inner cylinder and the outer cylinder at the respective center positions in the cylinder axis direction can be reliably maintained by the contact of the 174 with each other. Moreover, the pair of stopper pieces 17
3, 174 is a substantially central position in the cylinder axis X direction of the carbonization furnace 1,
.. And the sprocket 52.
Because it is provided at a position adjacent to the meshing part with
Even under thermal expansion, it is possible to prevent the relative displacement of the outer cylinder 16 at a substantially central position in the cylinder axis X direction, thereby dispersing the thermal expansion to both sides in the cylinder axis X direction. The generation of relative displacement in the cylinder axis X direction can be prevented as much as possible, and more reliable transmission of rotational driving force can be achieved.

On the other hand, even if the above-mentioned high-temperature heat affects the end covers 12 and 13 on the supply side and the discharge side, the end covers 12 and 13 are controlled by the outer side restricting means 19a of the restricting means 19. Is prevented from being displaced to the outside in the axial direction on both sides in the cylinder axis direction, so that an unnecessary load is applied to the connection between the supply means 3 and the discharge means 4 connected to the end covers 12 and 13. In addition, the supply means 3 or the discharge means 4 can be surely prevented from being damaged or malfunctioning. In addition, since the inner side restricting means 19b of the restricting means 19 allows relative displacement of the inner side parts of the end covers 12, 13 inward in the cylinder axis direction, the respective end covers 12 , 13 themselves can be tolerated in the cylinder axis direction without any other hindrance. At this time, the first regulating hole 192 of the outer regulating means 19a is a long hole extending in the horizontal direction orthogonal to the cylinder axis X, and the second regulating hole 192b of the inner regulating means 19b is Due to the circular holes, the thermal expansion of the end covers 12 and 13 in the radial direction can be allowed without any trouble.

On the other hand, in the above-mentioned carbonization process, the internal pressure rises as the temperature in the carbonization furnace 1 rises, but the pair of shutter valves 35 a and 35 b and the discharge
A pair of shutter valves 46a, 46b and the like ensure the hermeticity of the entire carbonizing furnace 1 and maintain a required internal pressure in the carbonization process, but if the internal pressure rises abnormally, the discharging means 4 Damper 41 of the transfer cylinder 41
6 and a damper (not shown) provided in the smoke discharge pipe 61 are automatically opened to release gas of a set pressure or more, so that the inside of the carbonization furnace 1 can always be maintained at a predetermined internal pressure or less. Thus, the safety of the carbonizing device can be further improved.

Further, in the process of discharging the carbide generated by the carbonization in the carbonization furnace 1, the extremely high-temperature carbide after the carbonization in the transport cylinder 41 is cooled by the cooling means 44 at three places in the traveling direction during the transportation. Water nozzles 441, 44
2,443, the cooling water can be reliably cooled before discharging to the outside, and can be discharged to the outside in an easy-to-handle state. Moreover,
Even if the cooling by the cooling means 44 is insufficiently cooled and the still high-temperature carbide is transported to the chute cylinder 43 which is the final outlet side position of the transport cylinder 41, the presence of the insufficiently cooled carbide is determined. 2 Second of emergency cooling means 45
Since the cooling water from the second emergency cooling water nozzle 451 is automatically detected and detected by the temperature sensor 452 to be rapidly injected to cool the carbide, the carbide itself when taken out from the chute cylinder 43 may be burned up. In addition, it is possible to reliably prevent the burning of fire using the carbide as a kind of fire, and the safety on the side of removing the carbide from the carbonization device is further enhanced.

<Other Embodiments> The present invention is not limited to the above embodiment, but includes various other modifications. That is, in the above embodiment, the regulating means 1
9 is composed of bolts 191a, 191b and first and second regulating holes 192a, 192b of a predetermined shape, but is not limited thereto. For example, the outer regulating means may be a horizontal The rollers are mounted on the outer sides of the end covers 12 and 13 so as to be able to roll only in the direction. It may be constituted by a roller attached to an inner side portion of the unit covers 12 and 13.

In the above embodiment, the chute cylinder 31 of the supply means 3 is constituted by the chute cylinders 311, 312, and 313 in which the inner hollow cross-sectional area is increased stepwise from above, but is not limited thereto. The chute cylindrical portion may be gradually and continuously enlarged from above, that is, may be prevented. Further, the number of shutter valves provided in the chute cylinder 31 may be three or more, and the number of chute cylinders defined thereby may be four or more.

In the above-described embodiment, the screw conveyor 42 is shown as the conveying means.

In the above embodiment, water is used as the cooling medium for the cooling means 44 and the like and the emergency cooling means 37 and the like. However, the present invention is not limited to this. Good.

[0094]

As described above, according to the carbonization apparatus of the first aspect, the carbonization furnace is constituted by the inner cylinder and the outer cylinder which are arranged with an annular gap therebetween. The two cylinders are supported by each other via support means, and the inner cylinder is relatively displaceable in the cylinder axis direction with respect to the outer cylinder, and the relative rotational displacement in the circumferential direction is prevented. Because
Even if the inner cylinder body thermally expands or conversely cools and contracts, the inner cylinder body is freely displaced relative to the outer cylinder body in the axial direction, so that an unnecessary load is not applied to the outer cylinder body and adverse effects due to a difference in thermal expansion. And there is no risk of heat generation. Moreover, since an annular space is formed between the inner and outer cylinders to separate them, heat transfer from the inner to the outer cylinder is suppressed. As a result, the thermal expansion of the outer cylinder itself can be suppressed.

On the other hand, since the relative rotational displacement in the circumferential direction is prevented by the above-mentioned supporting means, the rotational driving force is transmitted through the above-mentioned supporting means by rotating the outer cylindrical body to rotate the inner cylindrical body. In addition to being able to perform the operation, by suppressing the thermal expansion of the outer cylinder, the transmission of the rotational driving force between the outer cylinder and the driving means can be ensured, and the driving means for rotationally driving the outer cylinder. In addition, the support mechanism for rotatably supporting the outer cylinder itself can be simplified.

According to the second aspect of the present invention, at least two or more convex guide members extending parallel to each other in the cylinder axis direction in the support means according to the first aspect of the present invention, and each convex guide member is formed in a circumferential direction. When the inner cylindrical body thermally expands or contracts, the convex guide member and the concave receiving member move along the convex guide member when the inner cylinder body thermally expands or contracts. The above-mentioned thermal expansion or the like can be allowed by the relative displacement in the cylinder axis direction, and the rotational driving force from the outer cylinder is transmitted to the inner cylinder by the circumferential contact between the convex guide member and the concave receiving member. be able to. Therefore, the effect of the invention described in claim 1 can be reliably obtained.

According to the third aspect of the present invention, a predetermined radial gap is formed between each convex guide member and each concave receiving member in the second aspect of the present invention. Even if the inner wall of the inner cylinder extends in the circumferential direction due to thermal expansion as a result, even if the inner cylinder expands to the side where the diameter increases, the expansion is absorbed by the gap without impairing the function of the support means. Therefore, the effect of the invention described in claim 2 can be reliably obtained.

According to the fourth aspect of the present invention, in addition to the effects of the second aspect of the present invention, even if the carbonization furnace is disposed so as to have a slight downward slope toward the discharge means, a pair of stoppers can be provided. The relative positions of the inner cylinder and the outer cylinder in the cylinder axis direction can be reliably maintained by the abutting of the pieces.

According to the fifth aspect of the present invention, in addition to the effects of the first aspect of the invention, a plurality of driving means for applying a rotational driving force to the outer cylinder are fixed to the outer peripheral surface of the outer cylinder. Since the pin member and the drive-side sprocket supported on the base side and meshing with the pin member are provided, even when thermal expansion occurs in the outer cylinder, transmission of rotational driving force is performed. It can be done smoothly. That is, for example, the transmission of the rotational driving force is not performed by relatively high-precision meshing of gears but by relatively loose meshing of a combination of a pin member and a sprocket. Even if thermal expansion occurs in the outer cylinder body, the driving force can be continuously and smoothly transmitted, and furthermore, the pin members are attached in a state where they extend parallel to each other in the cylinder axis direction and longer than the thickness of the sprocket. Therefore, even if the outer cylinder body is thermally expanded in the cylinder axis direction, the meshing relationship with the sprocket is maintained, and the driving force can be transmitted reliably.

According to the present invention, the openings at both ends in the axial direction of the carbonizing furnace are closed by end covers, and the end covers are attached to the base via the restricting means. Since the peripheral walls of the end covers are externally fitted to the outer peripheral surface of the carbonization furnace via the sealing member, relative displacement in the cylinder axis direction is mutually permitted while the hermeticity of the carbonization furnace is secured. Can be. Also, even if the end of the carbonization furnace is expanded or contracted outward in the cylinder axis direction due to thermal expansion or contraction,
Since the peripheral wall portion protrudes outward in the cylinder axis direction from the end of the carbonization furnace, free expansion and contraction of the end portion of the carbonization furnace can be allowed, and the expansion and contraction is absorbed by the peripheral wall portion of the protruding portion. Therefore, even during thermal expansion, no excessive pressing force is applied to the supply means and the discharge means connected to the end of the carbonization furnace. Moreover, even when the end cover itself thermally expands due to the heat in the carbonization furnace, it is possible to prevent the relative displacement of the outer side portion of each end cover in the cylinder axis direction by the restricting means. On the other hand, since the relative displacement of the inner side portion in the cylinder axis direction is allowed, in combination with the absorption of the thermal expansion of the end of the carbonization furnace in the end cover, both sides in the cylinder axis direction are combined. It is possible to reliably prevent an excessive pressing force from acting on the supply means and the discharge means provided.

According to the seventh aspect of the present invention, as the restricting means according to the sixth aspect of the present invention, the outer side portion of each end cover is set to the inner side portion by the outer side restricting means. Since the direction of thermal expansion and contraction is regulated by the side regulating means, and the first regulating hole of the outer regulating means is formed so as to have substantially the same axial width as the outer diameter of the first shaft body. By the contact between the first regulating hole and the first shaft body, relative displacement of the outer side portion in the cylinder axis direction can be reliably prevented. On the other hand, the second regulating hole of the inner regulating means is
Since it is formed so as to have a width in the cylinder axis direction at least larger than the outer diameter of the shaft body, it is possible to allow relative displacement of the inner side portion in the cylinder axis direction due to thermal expansion and contraction.
Therefore, the effect of the invention described in claim 6 can be reliably obtained.

According to the eighth aspect of the present invention, in addition to the effects of the sixth aspect, a gas vent is formed in the discharge means, and the gas vent is closed and closed in the carbonization furnace. When the internal pressure rises above the set pressure, the damper is opened by the internal pressure, so that the damper is closed during the normal carbonization process in the carbonization furnace, and the airtightness of the carbonization furnace On the other hand, if the internal pressure in the carbonization furnace falls into an abnormal state exceeding the set pressure, the damper receives the internal pressure exceeding the set pressure and automatically opens to operate the carbonization furnace. The gas inside is released through the vent port, and the internal pressure in the carbonization furnace can be kept below the set pressure. Thereby, the safety of the carbonizing device can be further improved.

According to the ninth aspect of the present invention, in addition to the effects of the first or sixth aspect of the present invention, the supply means comprises a vertically extending chute cylinder and a plurality of vertically extending chute cylinders. Since it is provided with a plurality of shutter valves partitioned into a cylindrical portion, the sealing performance in the carbonization furnace can be improved, and the plurality of chute cylindrical portions are sequentially expanded from the upper side to the lower side. Since the inner cross-sectional area is sequentially increased, it is possible to prevent the carbonized raw material supplied from the upper end of the chute cylinder from being clogged in the chute cylinder.

According to the tenth aspect of the present invention, in addition to the effects of the first or sixth aspect, the supply means includes a first temperature detecting means, and an internal portion of the supply means detected by the first temperature detecting means. Since the first emergency cooling means for cooling the internal carbonized raw material when the temperature exceeds the set temperature is provided, the internal temperature of the supply means is reduced by the heat propagation accompanying the carbonizing treatment in the carbonizing furnace. Before rising to the combustion temperature of
The carbonized raw material can be cooled by the first emergency cooling unit, and the occurrence of a situation in which the carbonized raw material is burned on the supply unit side can be reliably prevented. Along with this, it is not necessary to form the supply means with a heat-resistant material that can combat the combustion of the carbonized raw material, so that cost reduction and simplification can be achieved.

According to the eleventh aspect of the present invention, in addition to the effects of the first or sixth aspect of the present invention, in addition to the effect of the first aspect, the discharge means may be connected to a transport cylinder connected to the other end of the carbonization furnace in the axial direction. Since it is provided with a transporting means for transporting carbide through the transport cylinder and a cooling means for cooling the carbide in the transport cylinder, the extremely high-temperature carbide after the carbonization treatment is cooled by the cooling means. It can be cooled before being discharged to the outside, and it is possible to prevent the occurrence of a situation in which the substance is burned even if it comes into contact with oxygen when taken out.

According to the twelfth aspect of the present invention, in addition to the effect of the eleventh aspect, the discharging means includes a second temperature detecting means for detecting an internal temperature near the discharge end of the transport cylinder; Since the second emergency cooling means for cooling the internal carbide when the detected internal temperature exceeds the set temperature is additionally provided, even if the carbide is cooled by the cooling means in the invention according to the eleventh aspect, the carbide still remains. Even when the temperature is high, the carbide can be urgently cooled by the second emergency cooling means. As a result, it is possible to reliably prevent the occurrence of burning of the carbide itself when taken out to the outside, and the occurrence of spread of fire using the carbide as a fire source, and further enhance the safety on the side of taking out the carbide from the carbonization device. be able to.

According to the thirteenth aspect of the present invention, in addition to the effects of the eleventh aspect, in addition to the above, the discharge means is provided with a chute cylinder which is communicated with the discharge end of the transport cylinder and extends downward. Since a plurality of shutter valves are provided to open and close the chute cylinder at a plurality of positions in the vertical direction, the hermeticity of the carbonization furnace on the discharge means side can be improved.

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram showing an embodiment of the present invention.

FIG. 2 is a partially enlarged sectional view of a carbonization furnace main body.

FIG. 3 is a partially omitted sectional view taken along line AA of FIG. 2;

FIG. 4 is an enlarged view of a portion B in FIG. 3;

FIG. 5 is an enlarged view of a portion C in FIG. 2;

FIG. 6 is an enlarged cross-sectional view of a supply unit side.

7 is a partially omitted enlarged view taken on line DD of FIG. 6;

8 is a partially omitted enlarged view taken along the line EE in FIG. 7;

FIG. 9 is a partially omitted enlarged sectional view taken along line FF and line GG of FIG. 8;

FIG. 10 is an enlarged cross-sectional view of a discharging unit.

11 is a partially omitted enlarged view taken on line HH of FIG. 10;

FIG. 12 is a partial explanatory view taken along the line II of FIG. 5;

[Explanation of symbols]

REFERENCE SIGNS LIST 1 carbonization furnace 2 base 3 supply means 4 discharge means 5 drive means 12 supply side end cover 13 discharge side end cover 15 inner cylinder 16 outer cylinder 17 support means 18 annular gap 19 regulation means 19a outer regulation means 19b Inward side regulating means 31 Chute cylinder 35a Shutter valve 35b Shutter valve 37 First emergency cooling means 41 Conveying cylinder (cylindrical) 42 Screw conveyor (Conveying means) 43 Chute cylinder 44 Cooling means 45 Second emergency cooling means 46a Shutter valve 46b Shutter valve 52 Sprocket 57 Pin member 121 Peripheral wall 122 End wall 123 Seal member 131 Peripheral wall 132 End wall 133 Seal member 137 Opening 138 Lid 152 Outer peripheral surface of inner cylinder 164 Inner peripheral surface of outer cylinder 171 convex guide member 172 concave receiving member 173 stopper piece (first or Is a second stopper piece) 174 Stopper piece (first or second stopper piece) 177 Radial gap 191a First bolt (first shaft body) 191b Second bolt (second shaft body) 192a First regulating hole 192b Second Control hole 311 chute cylinder 312 chute cylinder 313 chute cylinder 372 first temperature sensor (first temperature detection means) 415 gas vent 416 damper 452 second temperature sensor (second temperature detection means) X cylinder shaft

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Yuji Yamazaki 6-107 Takino-cho, Nishinomiya-shi, Hyogo Shinmeiwa Industry Co., Ltd. Development Technology Headquarters (72) Inventor Toshiaki Narusei Shinmeiwa-cho, Takarazuka-shi, Hyogo No. 1-1 Shin Meiwa Industry Co., Ltd. Environmental Systems Division (56) References JP-A-6-212163 (JP, A) JP-A-5-279666 (JP, A) JP-A-47-2909 (JP, A) Japanese Utility Model Application Hei 5-62552 (JP, U) Japanese Utility Model Application Sho 58-56049 (JP, U) (58) Field surveyed (Int. Cl. ⁷ , DB name) C18B 53/02

Claims (13)

(57) [Claims] 1. A carbonization furnace arranged substantially horizontally with respect to a base and rotatably supported around a cylinder axis, driving means for rotating the carbonization furnace, and one end of the carbonization furnace in the cylinder axis direction A supply means connected to the supply of carbonized raw material, and a discharge means connected to the other end of the carbonization furnace in the cylinder axis direction and discharging the carbonized carbonized material; Body, an outer cylinder disposed coaxially around the inner cylinder with a predetermined annular gap therebetween in the radial direction, and the inner cylinder can be relatively displaced in the cylinder axis direction with respect to the outer cylinder, And a supporting means for supporting the relative rotational displacement in the circumferential direction in a blocked state. 2. The supporting means according to claim 1, wherein the supporting means is directed toward the annular gap at a position circumferentially away from one of the outer peripheral surface of the inner cylindrical body and the inner peripheral surface of the outer cylindrical body. At least two or more convex guide members provided so as to protrude in the radial direction and extend in parallel with each other in the cylinder axis direction;
At least two or more concave receiving members provided at positions corresponding to the respective convex guide members on the other peripheral surface so as to protrude radially toward the annular gap and sandwiching each of the convex guide members from both sides in the circumferential direction; A carbonization device comprising: 3. The relative displacement between each convex guide member and each concave receiving member in the radial direction between each convex guide member of the supporting means and each concave receiving member. A carbonization apparatus characterized in that gaps at predetermined intervals are formed in the radial direction of the carbonization furnace so that the carbonization can be performed. 4. The carbonization furnace according to claim 2, wherein the carbonization furnace is supported so as to have a slight downward slope toward the discharge means, and the support means is one of an outer peripheral surface of the inner cylinder and an inner peripheral surface of the outer cylinder. A first stopper piece radially protruding from the peripheral surface of the second stopper member, and a second stopper member protruding from the other peripheral surface in a direction opposite to the first stopper member and abutting against the first stopper member in the cylinder axis direction. A carbonizing device comprising a stopper piece. 5. The driving device according to claim 1, wherein the driving means is provided on the outer peripheral surface of the outer cylinder body at equal intervals in a circumferential direction so as to mesh with the sprocket. Placed, and
A carbonization apparatus comprising: a plurality of pin members having a circular cross section which are attached in a state where they are extended in parallel with each other in the axial direction of the cylinder and longer than the thickness of the sprocket. 6. A carbonization furnace arranged substantially horizontally with respect to a base and rotatably supported around a cylinder axis, driving means for rotating the carbonization furnace, and one end of the carbonization furnace in the cylinder axis direction A supply means connected to the supply of carbonized raw material, and a discharge means connected to the other end of the carbonization furnace in the cylinder axis direction and discharging the carbonized carbonized material; A pair of end covers for closing each opening at both ends in the direction allowing thermal expansion and contraction in the cylinder axis direction of the carbonization furnace. The end covers are mounted on the outer peripheral surface of the end portion of the carbonizing furnace in the axial direction of the carbonizing furnace. Externally fitted via the member so as to be relatively displaceable in the cylinder axis direction, A peripheral wall part whose cylindrical axial direction outer end side protrudes outward in the cylindrical axial direction from the cylindrical axial direction end of the carbonizing furnace, and an end wall part that closes an opening of the cylindrical axial direction outer end of the peripheral wall part. The restricting means is configured to prevent relative displacement of the end covers in the cylinder axis direction at the outer portion of the end cover in the cylinder axis direction, while controlling relative displacement of the inner portion in the cylinder axis direction in the cylinder axis direction. A carbonization device characterized by being configured to allow. 7. The restricting means according to claim 6, wherein the restricting means includes an outer restricting means interposed between a base portion of each end cover in the axial direction of the cylinder and a base; It is composed of an inner side restricting means interposed between the inner side portion in the cylinder axis direction and the base, and the outer side restricting means penetrates both the end covers and the base. A first shaft body, and at least one of the end covers and the base, which are provided so as to have substantially the same axial width as the outer diameter of the first shaft body and through which the first shaft body penetrates. 1 regulating hole, wherein the inner regulating means comprises: a second shaft body penetrating both the end covers and the base; and a second shaft body provided in at least one of the end covers and the base. A second regulating hole provided so as to have a width in the axial direction of the cylinder at least larger than the outer diameter of the second shaft body. And a carbonization device. 8. The discharging means according to claim 6, wherein the discharging means has a gas vent formed through a part of the discharging means, the gas vent is closed so as to be openable and closable, and the internal pressure in the carbonizing furnace is reduced. And a damper which is opened by the internal pressure when the pressure exceeds a set pressure. 9. The chute according to claim 1, wherein the supply means is provided at each of a plurality of vertically spaced chute cylinders and a plurality of vertically spaced chute cylinders. A plurality of shutter valves for vertically opening and closing the inside of the cylindrical body, wherein the chute cylindrical body is divided into a plurality of chute cylindrical parts vertically sandwiching each of the shutter valves; Is a carbonization device which is sequentially enlarged from the upper side to the lower side so that the lower side has a larger inner space cross-sectional area than the upper side. 10. The supply means according to claim 1, wherein the supply means includes a first temperature detection means for detecting an internal atmosphere temperature, and a temperature detected by the first temperature detection means exceeds a set temperature. When the first carbonized raw material is cooled
A carbonizing device provided with emergency cooling means. 11. The discharge means according to claim 1, wherein one end of the discharge means communicates with the other end of the carbonization furnace in the cylinder axis direction and the other end is a discharge end of the carbide, and the discharge means rises from the one end to the other end. A transport cylinder disposed so as to have a gradient, and transport means for transporting carbide to the discharge end through the transport cylinder,
A carbonization device, comprising: cooling means for cooling the carbide in the transport cylinder. 12. The discharging means according to claim 11, wherein the discharging means includes a second temperature detecting means for detecting an ambient temperature in the vicinity of a discharging end of the transport cylinder, and a temperature detected by the second temperature detecting means corresponds to a set temperature. A carbonization apparatus, further comprising second emergency cooling means for cooling the internal carbide when the pressure exceeds the temperature. 13. The chute cylinder according to claim 11, wherein the chute cylinder communicates with a discharge end of the transport cylinder and extends downward, and the chute cylinder is provided at a plurality of positions vertically separated from each other in the chute cylinder. A carbonization device comprising: a plurality of shutter valves for shutting up and down the inside of the chute cylinder so as to be openable and closable up and down.