JP2018053101A - Biomass fuel production method and biomass fuel production device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress the reduction of the heat quantity of biomass fuel produced by subjecting woody biomass to carbonization treatment, and further to increase transportation efficiency.SOLUTION: There is provided a biomass fuel production method comprising: a semi-carbonization step S1 where woody biomass is semi-carbonized without being pulverized so as to be a carbide; a compression step S3 where the carbide is compressed without adding a binder; a crushing step S4 where the compressed carbide is crushed; and a storage step S6 where the crushed carbide is stored into a container for transportation.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a biomass fuel manufacturing method and a biomass fuel manufacturing apparatus.

  For the purpose of more efficiently using the energy of the woody biomass, attempts have been made to improve the calorific value by carbonizing the woody biomass. As carbonization treatment of woody biomass, for example, by using a pyrolysis furnace such as an external heat type pyrolysis gasification furnace, the woody biomass is indirectly heated in a low oxygen atmosphere to improve the calorific value (biomass A method for producing a fuel) is known.

  High-temperature carbonization and semi-carbonization (trefaction) are known as methods for producing carbides. In high-temperature carbonization, it is possible to produce a carbide with high gasification rate and suppressed self-heating by securing a sufficient treatment time at a predetermined temperature. In the semi-carbonization, it is possible to produce a carbide having both pulverization properties and a residual amount of heat by controlling in a very narrow temperature range (see, for example, Patent Document 1).

  Moreover, it is common to pelletize or briquette the carbide produced from the woody biomass to improve the bulk density.

  As a method of pelletizing or briquetting carbide, a method of pelletizing or briquetting by adding a binder (chemicals such as an adhesive or a binder) to the generated carbide is known (for example, Patent Documents). 2).

JP 2006-026474 A JP 2010-037420 A

  By the way, in the above conventional biomass fuel production method, by adding a binder at the time of pelletization or briquetting, the calorific value of the generated biomass fuel is reduced, and a carbide that can be loaded in a transport container of a predetermined volume There has been a problem that the transportation efficiency of the vehicle is reduced.

  An object of the present invention is to provide a biomass fuel production method and a biomass fuel production apparatus capable of suppressing a decrease in the calorific value of biomass fuel and increasing transport efficiency.

  According to the first aspect of the present invention, the biomass fuel production apparatus includes a semi-carbonizing step for semi-carbonizing a woody biomass without crushing the woody biomass, and a compression step for compressing the carbide without adding a binder. A crushing step of crushing the compressed carbide, and a storing step of storing the crushed carbide in a transport container.

According to such a configuration, biomass fuel can be produced without adding a binder, so that a decrease in the calorific value of the biomass fuel can be suppressed and transportation efficiency can be increased.
Moreover, the charging efficiency of the biomass fuel stored in the container for transportation can be improved by crushing the compressed carbide. Therefore, the transportation efficiency of biomass fuel can be increased. Moreover, the self-heating property of the fuel can be suppressed as compared with the case where there is a gap between pellets or briquettes in a stored state as in the case of transporting carbides by pelletizing or briquetting. .

  In the biomass fuel manufacturing method, in the crushing step, the compressed carbide may be crushed so that the compressed carbide has a size suitable for transportation.

  According to such a configuration, the crushed carbide can be easily stored in the transport container.

  In the biomass fuel production method, a wood biomass crushing step for crushing the wood biomass may be provided before the semi-carbonization step so that the wood biomass has a size suitable for being conveyed to a carbide production apparatus. .

  According to such a structure, it can be set as the magnitude | size suitable for semi-carbonizing a woody biomass with a carbonization manufacturing apparatus.

  In the biomass fuel production method, the size of the crushed carbide generated by crushing in the crushing step may be smaller than the size of the crushed wood biomass generated by crushing in the woody biomass crushing step. .

  According to the second aspect of the present invention, the biomass fuel production apparatus is compressed with a carbide production apparatus that semi-carbonizes the woody biomass to form a carbide, a compression apparatus that compresses the carbide without adding a binder, and A crushing device for crushing the carbide, and a storage device for storing the crushed carbide in a transport container.

  In the biomass fuel production apparatus, the crushing apparatus may be directly connected to the compression apparatus.

  According to such a configuration, it is possible to reduce the power of the crushing device and to suppress wear by crushing immediately after compression.

  The biomass fuel production apparatus may further include an airflow conveyance device that conveys the crushed carbide to the storage device by an airflow.

  According to such a configuration, the carbide can be efficiently cooled.

According to the present invention, since biomass fuel can be produced without adding a binder, it is possible to suppress a decrease in the calorific value of the biomass fuel and increase transport efficiency.
Moreover, the charging efficiency of the biomass fuel stored in the container for transportation can be raised by crushing the compressed carbide.

It is a schematic block diagram which shows an example of the biomass fuel manufacturing apparatus of embodiment of this invention. It is a schematic block diagram of the carbide manufacturing apparatus of embodiment of this invention. It is a schematic block diagram of the compression apparatus and 2nd crushing apparatus of embodiment of this invention. It is a flowchart explaining the biomass fuel manufacturing method of embodiment of this invention.

Hereinafter, a biomass fuel production apparatus according to an embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is a schematic configuration diagram illustrating an example of a biomass fuel production apparatus according to the present embodiment.
The biomass fuel production apparatus 1 is an apparatus for producing a biomass fuel having a non-uniform size that is not pelletized or briquetted by crushing a carbide C produced by semi-carbonizing the woody biomass B.

  As shown in FIG. 1, the biomass fuel production apparatus 1 of the present embodiment includes a woody biomass supply apparatus 2, a first crushing apparatus 3 that crushes a woody biomass B <b> 1 supplied from the woody biomass supply apparatus 2, and a first crushing Carbide production device 4 for pyrolyzing wood biomass B2 crushed by device 3 to produce carbide C1, compression device 5 for compressing produced carbide C1, and second crushing device for crushing compressed carbide C2 6, a transport device 7 that air-transports the carbide C3 crushed by the second crushing device 6, and a storage device 8 that stores the transported carbide C3 and stores it in the transport container 26.

  The woody biomass B is biomass (biological resource) made of wood, and there are forest land residual materials such as branches and leaves generated during cutting and lumbering of trees, and bark generated from a lumber mill.

  The carbide manufacturing apparatus 4 includes an indirect heating type external thermal pyrolysis gasification furnace 53 (thermal decomposition furnace, see FIG. 2) that indirectly heats the woody biomass B to cause thermal decomposition and gasification reaction. Yes. As the pyrolysis proceeds, the woody biomass B is carbonized while generating pyrolysis gas G. The generated carbide C <b> 1 is supplied to the compression device 5.

The woody biomass supply device 2 is a device that stores the woody biomass B1 before crushing and supplies the woody biomass B1 to the first crushing device 3 in the subsequent stage using a conveying means such as a belt conveyor.
The first crushing device 3 is a device that crushes a material to be crushed such as the woody biomass B. The first crushing device 3 crushes the woody biomass B1 so that the largest of the crushed woody biomass B2 fits within 100 mm. That is, the first crushing device 3 crushes the woody biomass according to the size of the inlet of the carbide manufacturing device 4. As the first crusher 3, a rotary crusher or a shear crusher can be adopted. The woody biomass B supplied to the carbide manufacturing apparatus 4 does not need to be crushed and is sufficient for crushing, and the power of the first crushing apparatus 3 can be reduced as compared with the case of crushing.

  In addition, you may provide the dryer which dries the woody biomass B1 in the stage before supplying to the carbide manufacturing apparatus 4. FIG. For example, the dryer dries the woody biomass B1 having a moisture content of 40% to 60%, and dries it to, for example, a moisture content of 10% to 20%. The dryer is a belt dryer that dries the woody biomass B1 placed on the belt by spraying a high-temperature dry gas. As the dryer, in addition to the belt dryer, a rotary kiln type dryer or a disk dryer can be adopted. The heating method of the dryer may be either indirect heating or direct heating.

  As shown in FIG. 2, the carbide manufacturing apparatus 4 includes a screw conveyor 52 that transports a raw material wood biomass B <b> 2 and an external heating heat that is semi-carbonized by pyrolyzing the wood biomass B <b> 2 that is input from the screw conveyor 52. A cracking gasification furnace 53 and a chute 54 for discharging carbide C1 discharged from the external heating type pyrolysis gasification furnace 53 are provided.

The external heat type pyrolysis gasification furnace 53 is an indirect heating type pyrolysis furnace in which the woody biomass B2 is indirectly heated to cause pyrolysis or gasification reaction.
The external thermal pyrolysis gasification furnace 53 includes a cylindrical outer cylinder 58 (muffle), a cylindrical inner cylinder 59 (kiln shell) that rotates relative to the outer cylinder 58 and is charged with woody biomass B2. This is an externally heated rotary kiln type. The outer cylinder 58 and the inner cylinder 59 are arranged coaxially. The axes of the outer cylinder 58 and the inner cylinder 59 extend in the horizontal direction.
In the carbide manufacturing apparatus 4 of the present embodiment, an external heat type rotary kiln type is used as the external heat type pyrolysis gasification furnace 53, but it may be of a type in which woody biomass is indirectly heated in a low oxygen atmosphere. There is no limit to this. For example, an external heat type screw conveyor may be used as the external heat type pyrolysis gasification furnace.

The upstream side of the inner cylinder 59 is supported so as to be rotatable around the axis by a movable support 60 that is movable in the axial direction. The downstream side of the inner cylinder 59 is supported by the fixed side support portion 63 so as to be rotatable around the axis.
The screw conveyor 52 is provided so that the woody biomass B2 is thrown into the movable side support portion 60 that constitutes the inlet portion of the inner cylinder 59. The chute 54 is disposed so as to separate the pyrolysis gas G and the carbide C1 from the fixed side support portion 63 that constitutes the outlet portion of the inner cylinder 59.
The movable side support portion 60 has an annular frame 61 that rotatably supports the inner cylinder 59. Both side portions of the annular frame 61 are rotatably supported by the upper end portion of the support member 62 that is slidably raised from the installation surface 68.

  A plurality of fins (or spirals, not shown) arranged at an inclination with respect to the circumferential direction are provided on the inner wall portion of the inner cylinder 59, and the inner cylinder 59 is driven at a predetermined rotational speed (for example, 1 by the drive device 64). The woody biomass B2 charged from the inlet side (upstream side) is heated and transferred to the outlet side (downstream side) by being driven and rotated at ˜5 rpm, and the semi-carbonized carbide C1 is discharged from the chute 54. It is possible. Instead of providing fins, the inner cylinder 59 is supported so as to be rotatable around an axis slightly inclined with respect to the horizontal, and the wood biomass B2 is semi-carbonized by the inclination and rotation of the inner cylinder 59 and transferred to the outlet side. Sometimes it is done.

  The drive device 64 includes a gear 65 provided on the inner cylinder 59, a drive motor 66, and a pinion gear 67 that is attached to the rotation shaft of the drive motor 66 and is fitted to the gear 65. The drive device 64 transmits the drive of the drive motor 66 to the gear 65 to rotate the gear 65, thereby rotating the inner cylinder 59 about the axis.

The outer cylinder 58 is fixed to an installation site via a support member (not shown) in a state in which the inner cylinder 59 is allowed to rotate and move in the axial direction and a seal is secured with the inner cylinder 59.
The movable side support portion 60 and the fixed side support portion 63 of the inner cylinder 59 form an air seal between the respective rotating portions and non-rotating portions. An expansion 77 that absorbs the displacement in the axial direction of the movable support 60 is provided at a connection portion between the movable support 60 and the screw conveyor 52.

  One end of the outer cylinder 58 is connected to a pyrolysis gas combustion furnace 69 that functions as a heater for supplying heating gas and a heating gas supply pipe 70 that connects the outer cylinder 58. A heated gas delivery pipe 71 is connected to the other end of the outer cylinder 58. The heated gas delivery pipe 71 is provided with a heated gas amount adjusting damper 72 and an induction fan 73 that function as the heated gas amount adjusting device 57.

  A plurality of inspection windows 74 are provided at an upper portion of the outer cylinder 58 so as to be spaced apart from each other in the axial direction. Each inspection window 74 is provided with a non-contact thermometer 75 that measures the kiln shell temperature (the iron shell temperature of the inner cylinder 59) facing the outer peripheral surface of the inner cylinder 59 that rotates about the axis. A radiation thermometer can be used as the non-contact type thermometer 75. The kiln shell temperature measured by the non-contact type thermometer 75 is input to a control device (not shown).

  Since the kiln shell temperature is the temperature of the portion in direct contact with the woody biomass B1 in the inner cylinder 59, it has a high correlation with the thermal decomposition temperature of the woody biomass B1, and reflects the heating situation well. For this reason, stable control of heating temperature is attained by performing temperature control based on kiln shell temperature.

The control device controls the amount of heated gas so that the kiln shell temperature is maintained in a predetermined temperature range. The amount of heated gas is adjusted by the opening degree of the heated gas amount adjusting damper 72 and the rotational speed of the induction fan 73.
If the heating gas amount is not adjusted and cannot be maintained within a predetermined temperature range, the evaporation of moisture is promoted by increasing the number of rotations of the inner cylinder 59 (increasing the rotation speed). The kiln shell temperature decreases as the evaporation of moisture increases.

The compression device 5 is a device that compresses the semi-carbonized carbide C1 in order to increase the bulk density. When compressing the carbide C1, no binder (chemicals such as an adhesive or a binder) is added to the carbide C1. When compressing the carbide C1, the carbide C1 is not humidified.
As shown in FIG. 3, the compression device 5 includes a feeder 11 for conveying the carbide C1 supplied from the chute 54 of the carbide manufacturing device 4 and a compression unit 12 for compressing the carbide C1 supplied from the feeder 11. Have.

The compression unit 12 includes a cylindrical cylinder 13 extending in the vertical direction, a piston 14 movable in the vertical direction within the cylinder 13, a drive unit 15 for driving the piston 14, and an opening 13 a below the cylinder 13. And an opening / closing member 16 that can be opened and closed. The drive unit 15 is a hydraulic cylinder. The drive unit 15 is not limited to a hydraulic cylinder, and other drive devices such as a pneumatic cylinder may be employed.
The piston 14 is a columnar member that moves in the cylinder 13.

  The cylinder 13 has a taper portion 17 that decreases in diameter toward the opening 13a. The tapered portion 17 of the cylinder 13 is formed so that the diameter of the carbide C1 to be compressed is 80 mm here.

The second crushing device 6 includes a crushing device hopper 19 and a crushing device main body 20 that crushes the carbide C2 charged in the crushing device hopper 19.
The crushing device hopper 19 has a tapered shape whose diameter increases as it goes upward. The upper opening 19 a of the crusher hopper 19 is directly connected to the lower opening 13 a of the cylinder 13 of the compression unit 12. In other words, the crusher hopper 19 is disposed at a position where the carbide C2 discharged from the cylinder 13 of the compression unit 12 is directly supplied. It is preferable that the cylinder 13 of the compression part 12 and the crushing device hopper 19 are arranged on the same axis.

  The crushing device main body 20 is a device capable of crushing a material to be crushed such as compressed carbide C2. The crushing device body 20 crushes the carbide C2 so that the largest of the crushed carbide C3 falls within a predetermined value, for example, 50 mm. This predetermined value is, for example, a dimension based on the acceptance standard of a coal-fired power plant to which the carbide C3 is delivered.

  As the crushing device body 20, for example, a uniaxial or biaxial rotary crusher can be adopted. When the first crushing device 3 and the second crushing device 6 are compared, the second crushing device 6 is to be crushed more than the first crushing device 3 because the object is a carbide having better crushability than the woody biomass B. Can be more easily crushed. In other words, the first crushing device 3 may be of a size that allows the wood biomass to be input into the carbide production device 4, so that it is relatively large and dimensional accuracy is not required. Since it is necessary to match the dimensions, it is generally small and requires accuracy. For this reason, the woody biomass crushed by the first crushing device 3 is larger than the carbide crushed by the second crushing device 6.

  The crushing device body 20 is disposed at a position where the carbide C2 charged into the crushing device hopper 19 is directly supplied. In other words, the carbide C2 thrown into the crusher hopper 19 is directly crushed without passing through. That is, the second crushing device 6 is disposed at a position where the carbide C2 discharged from the compression device 5 is directly supplied.

  As shown in FIG. 1, the conveying device 7 is an airflow conveying device that conveys the carbide C3 crushed by the second crushing device 6 to the storage device 8 by an airflow. The transport device 7 includes a transport pipe 21 and a gas supply device 22 that generates an air flow in the transport pipe 21. The gas supply device 22 may be a blower or, for example, a device that supplies an inert gas. The gas supply device 22 is installed so as to generate an air flow from one end on the upstream side of the transport pipe 21 toward the downstream side. The conveying device 7 is not limited to the air current conveying device, and may be a conveyor.

The storage device 8 includes a storage tank 24 that stores the carbide C transported by the transport device 7, and stores the carbide C stored in the storage tank 24 in the transport container 26.
The transport container 26 is a container for storing the non-uniformly shaped carbide C3 crushed by the second crushing device 6 and making it suitable for transport, for example, a container.
The storage device 8 may be a device that divides the stored objects to be processed into predetermined amounts and stores them in the transport container 26.

Next, a biomass fuel production method using the biomass fuel production apparatus 1 of the present embodiment will be described.
As shown in FIG. 4, the biomass fuel production method of the present embodiment includes a first crushing step S1 (woody biomass crushing step) for crushing woody biomass B1, and a carbonized carbon C1 by semi-carbonizing the woody biomass B2 without crushing. Semi-carbonizing step S2, compression step S3 for compressing carbide C1 without adding a binder, second crushing step S4 for crushing compressed carbide C2, and conveying step S5 for conveying crushed carbide C3 And a storing step S6 for storing the conveyed carbide C3 in the transport container 26.

In the first crushing step S1, the woody biomass B1 is crushed by the first crushing device 3 as a pretreatment.
In the first crushing step S <b> 1, the woody biomass B <b> 1 is crushed so as to have a size suitable for being input to the carbide manufacturing apparatus 4. The first crushing step S1 is not a step of crushing (pulverizing finely) the woody biomass B1, but is a step of adjusting an extremely large woody biomass B1 to a size suitable for supplying to the carbide manufacturing apparatus 4. . Here, “pulverization” is a process of making the woody biomass B, for example, a size of 10 mm or less at the maximum.

In the semi-carbonization step S2, the woody biomass B2 introduced into the inner cylinder 59 of the externally-heated pyrolysis gasification furnace 53 is 150 ° C to 450 ° C, preferably about 200 ° C to 300 ° C in a low oxygen atmosphere. It is indirectly heated at a high temperature and semi-carbonized.
Specifically, the woody biomass B2 is heated while being transferred toward the outlet side as the inner cylinder 59 rotates. Thereby, first, water remaining in the woody biomass B2 is evaporated. The thermal decomposition of organic components proceeds with the completion of moisture evaporation. As the pyrolysis proceeds, the woody biomass B2 is carbonized while generating the pyrolysis gas G. The generated carbide C1 having a predetermined carbonization degree is discharged from the chute 54.
The temperature of the carbide C1 that has undergone the semi-carbonization step S2 is about 300 ° C.

The pyrolysis gas G generated by the pyrolysis is introduced into the heating gas combustion furnace 69 and used for heating the external heating pyrolysis gasification furnace 53.
In the semi-carbonization step S2, the amount of heat supplied to the woody biomass B2 per unit time is adjusted by the control device.

In the compression step S3, the semi-carbonized carbide C1 is compressed by the compression device 5 without adding a binder. Alternatively, only the carbide C <b> 1 is compressed by the compression device 5. Thereby, the bulk density of the carbide | carbonized_material C1 will be 0.6 kg / liter, for example. The shape of the compressed carbide C <b> 2 is a shape that follows the cylinder 13 of the compression portion 12. The carbide C2 has a cylindrical shape with a diameter of about 80 mm, for example. However, since the binder is not added, it is easy to collapse and the shape cannot be maintained.
The temperature of the carbide C2 that has undergone the compression step S3 is about 200 ° C.

In the second crushing step S4, the compressed carbide C2 is crushed by the second crushing device 6.
The compressed carbide C2 is crushed to a size suitable for transportation. The carbide C2 is crushed so that the largest of the crushed carbide C3 falls within a predetermined value, for example, 50 mm. That is, the size of the crushed carbide C3 generated by crushing in the second crushing step S4 is smaller than the size of the crushed wood biomass B2 generated by crushing in the first crushing step S1.
The crushed carbide C3 has a non-uniform shape with a dimension of a predetermined value or less. In addition, by setting the size of the carbide C3 to 50 mm or less, it is possible to satisfy the acceptance standard (predetermined value) of a general coal-fired power plant without maintaining a uniform shape, and delivery is possible. .

In the compression step S3 of the present embodiment, no binder (adhesive or binder) is added to the carbide C1 that is the object to be processed. Therefore, the compressed carbide C2 is in a state of being easily collapsed suitable for crushing. Furthermore, since the second crushing device 6 is disposed immediately below the compression device 5, the carbide C2 is crushed immediately after being compressed.
The temperature of the carbide | carbonized_material C3 which passed through 2nd crushing process S4 will be 100 to 150 degreeC.

In conveyance process S5, crushed carbide C3 is conveyed. Carbide C3 is air-flow conveyed, so that the temperature of carbide C3 is cooled to 100 ° C. or lower during the conveyance process.
In the storing step S <b> 6, the conveyed carbide C <b> 3 is stored and then stored in the transport container 26. Thereafter, the carbide C3 stored in the transport container 26 is conveyed by, for example, a ship or a truck.

  The pelletized or briquetted biomass fuel added with the binder retains its molded shape, but the shape is retained when stored in the transport container 26. There are many voids. On the other hand, in the biomass fuel manufacturing method of the present embodiment, the crushed carbide C3 satisfies the standard that the size is not more than a predetermined value, and the size is not uniform from a powder form of several μm to a predetermined value. When stored in the container 26, there are almost no voids formed between the carbides. Therefore, the weight (transport weight) of the carbide C3 stored in the transport container 26 can be increased, and the transport efficiency can be increased.

  According to the above-described embodiment, biomass fuel can be produced without adding a binder. Therefore, it is possible to suppress a decrease in the calorific value of the biomass fuel and increase transport efficiency.

Further, in the conventional pelletization or briquetting of biomass fuel, in the compression step S3, the molded product had to be formed into a shape that can be received by the power plant. In the present embodiment, the carbide C1 is formed in the compression step S3. Since the diameter of the molded product at the time of compression can be made larger, the energy required for compression can be made efficient.
Further, by crushing the compressed carbide C2, the filling efficiency of the carbide C3 stored in the transport container 26 can be improved. By improving the packing efficiency of the stored carbide C3, the fuel is reduced in contact with air because there is almost no void compared to pelletized or briquetted biomass fuel with voids in the stored state. It is possible to suppress the self-heating property and improve the safety during transportation.

  Moreover, after semi-carbonizing the woody biomass B2, the size is reduced to the predetermined value or less before being semi-carbonized by crushing the size to a predetermined value according to the acceptance standard of the delivery destination, for example, 50 mm or less. Compared with the case of crushing, the energy required for crushing can be reduced.

  Moreover, the carbide | carbonized_material C3 can be efficiently cooled by conveying the crushed carbide | carbonized_material C3 by airflow conveyance. As a result, it becomes possible to transport to the delivery destination at an early stage.

  In addition, even if the binder is not added, the briquette molded product is allowed to stand for a certain period of time, so that it solidifies by cooling. Therefore, when the solidified molded product is put into the crushing device, it is necessary to increase the power of the crushing device. It causes wear of the device. According to the above embodiment, the power of the second crushing device 6 can be reduced and the wear can be suppressed by crushing immediately after compression (before solidification) while it is warm.

  The embodiment of the present invention has been described in detail above, but various modifications can be made without departing from the technical idea of the present invention.

DESCRIPTION OF SYMBOLS 1 Biomass fuel manufacturing apparatus 2 Woody biomass supply apparatus 3 1st crushing apparatus 4 Carbide manufacturing apparatus 5 Compression apparatus 6 2nd crushing apparatus 7 Conveyance apparatus 8 Storage apparatus 11 Feeder 12 Compression part 13 Cylinder 13a Opening part 14 Piston 15 Drive part 16 Opening and closing Member 17 Tapered portion 19 Crusher hopper 20 Crusher body 21 Transport pipe 22 Gas supply device 24 Storage tank 26 Transport container 52 Screw conveyor 53 External thermal pyrolysis gasifier 54 Chute 57 Heated gas amount control device 58 Outer cylinder 59 Inner cylinder 60 Movable side support part 61 Annular frame 62 Support member 63 Fixed side support part 64 Drive device 65 Gear 66 Drive motor 67 Pinion gear 68 Installation surface 69 Heating gas combustion furnace 70 Heating gas supply pipe 71 Heating gas delivery pipe 72 Heating gas Volume control damper 73 Invitation fan 74 Inspection window 75 Non-contact type thermometer 77 Expansion B Woody biomass C Carbide G Pyrolysis gas

Claims (7)

A semi-carbonization step to carbonize wood biomass without crushing, and
A compression step of compressing the carbide without adding a binder;
A crushing step of crushing the compressed carbide,
And a storing step of storing the crushed carbide in a transport container.   The biomass fuel manufacturing method according to claim 1, wherein in the crushing step, the compressed carbide is crushed so that the compressed carbide has a size suitable for transportation.   The woody biomass crushing step of crushing the woody biomass so as to have a size suitable for the woody biomass being transported to a carbide production device is provided in the first stage of the semi-carbonizing step. Biomass fuel production method.   The biomass fuel production according to claim 3, wherein the size of the crushed carbide generated by crushing in the crushing step is smaller than the size of the crushed wood biomass generated by crushing in the woody biomass crushing step. Method. Carbide manufacturing equipment that semi-carbonizes woody biomass into carbides;
A compression device for compressing the carbide without adding a binder to the carbide;
A crushing device for crushing the compressed carbide,
A biomass fuel production apparatus comprising: a storage device that stores the crushed carbide in a transport container.   The biomass fuel production apparatus according to claim 5, wherein the crushing apparatus is directly connected to the compression apparatus.   The biomass fuel manufacturing apparatus of Claim 5 or Claim 6 provided with the airflow conveying apparatus which conveys the said crushed carbide | carbonized_material to the said storage apparatus by airflow.

Images