JP5952444B1 - template - Google Patents

Abstract

An object of the present invention is to provide a mold that facilitates cooling when artificial stone is produced from reduced slag, for example. A mold 1 accommodates slag generated in a hot metal or steelmaking process. The mold includes a main body 2 that is a container, an outer frame 3 that houses the main body inside and forms a space between the outer periphery of the main body, and a lid 4 that closes an opening at the top of the main body. The position of the lid can be changed to expose the opening. A refractory material 35 having a heat insulating function is accommodated in the space between the main body and the outer frame. [Selection] Figure 2

Description

  The present invention relates to a mold that accommodates slag or the like generated during, for example, hot metal or steelmaking.

In the electric furnace steelmaking method, which uses iron scrap as the main raw material and heats and melts and refines it, oxygen is supplied to the molten steel to oxidize and remove unnecessary components, and oxygen in the molten steel is added by adding reducing agents, lime, etc. Reduction refining is performed.
Oxidized slag produced by oxidative refining contains a large amount of a stable mineral phase and is used as it is for concrete aggregates or the like (Non-Patent Document 1).

On the other hand, the reduced slag produced by refining is easily expanded by the lime content, and in a natural environment, it is disintegrated and powdered by repeated moisture absorption and drying.
By the way, the technique of manufacturing the artificial stone by mixing the powdered steel slag (blast furnace slag) containing calcium with a mud and a binder and hydrating and hardening is disclosed (Patent Document 1).
However, the technique for producing an artificial stone disclosed in Patent Document 1 uses cement or the like as a binder, and it has been considered that effective use of reduced slag alone is not easy.

JP 2012-148948 A

Internet, Katsuro Kokufu * 1, Susumu Yotsuya, “Outline of Electric Furnace Oxidizing Slag Aggregate” Concrete Engineering, Vol. 41, No. 8, 2003.8, 2003.8, <URL: https: //www.jstage.jst.go. jp / article / coj1975 / 41/8 / 41_3 / _pdf>

When the reduced slag is allowed to cool naturally, polycrystals are deposited to form a porous mass, which is pulverized by repeated moisture absorption and drying.
However, as a result of studying various conditions, the applicant has also prepared a reduced slag lump that seems to be brittle after solidification, and prepared reduced slag in a specific composition and kept it at a high temperature for a certain period of time. It has been found that expansion and collapse can be prevented by solidifying while keeping proper cooling conditions (Japanese Patent Application No. 2013-167831).

However, reducing slag currently has a problem that it is difficult to obtain a mold capable of realizing a specific cooling condition on an industrial scale, since natural cooling is generally performed.
The present invention has been made in view of the above problems, and an object thereof is to provide a mold that facilitates cooling when manufacturing artificial stone from reduced slag, for example.

The mold according to the present invention accommodates slag generated in the hot metal or steelmaking process. The mold includes a main body that is a container, an outer frame that houses the main body inside and forms a space between the outer periphery of the main body, and a lid that closes an opening at the top of the main body.
The main body extends outwardly between the upper flange-shaped portion and the lower flange-shaped portion and the upper flange-shaped portion and the lower flange-shaped portion that extend outwardly around the opening and the periphery of the bottom, respectively. And a small flange-shaped portion that goes around. A refractory material is attached to the space formed by the main body and the outer frame.

The position of the lid can be changed to expose the opening.
Preferably, the main body and the outer frame are divided into two parts by a cross section that bisects the bottom and the opening of the main body in a state where the outer frame accommodates the main body. Each part divided | segmented into 2 is integrated so that division | segmentation is possible with the connection apparatus.
The inner surface of the main body is inclined inward from the opening toward the bottom, and the degree of the inclination is 10 degrees to 25 degrees with respect to the vertical direction.

  According to the present invention, it is possible to provide a mold that facilitates cooling when manufacturing artificial stone from reduced slag, for example.

FIG. 1 is a plan view of a mold. FIG. 2 is a front view of the mold. FIG. 3 is a side view of the mold. FIG. 4 is a front view of the main body and the outer frame. FIG. 5 is a side view of the main body and the outer frame. FIG. 6 is a diagram illustrating the function of the coupling device. FIG. 7 shows another mold. FIG. 8 is a diagram showing how the lid is handled. FIG. 9 shows another mold. FIG. 10 is a diagram showing a change in temperature of the reduced slag during artificial stone production. FIG. 11 is a diagram showing the temperature change of the reduced slag during the production of another artificial stone.

1 is a plan view of the mold 1, FIG. 2 is a front view of the mold 1, FIG. 3 is a side view of the mold 1, FIG. 4 is a front view of the main body 2 and the outer frame 3, and FIG. FIG. 6 is a side view showing the function of the connecting device 5.
The mold 1 includes a main body 2, an outer frame 3, a lid 4, and the like.
The main body 2 is a container that stores reduced slag generated by reduction refining. The main body 2 is a truncated cone having an oval cross section, and a bottom surface having a larger area is an upper opening, and the other bottom surface is a lower bottom 11. Any inner surface of the main body 2 is inclined inward toward the bottom. The degree of the inclination is 10 degrees to 25 degrees with respect to the axis of the frustum (a virtual line extending up and down the center of the main body 2). A more preferable degree of inclination is 15 degrees to 20 degrees.

The main body 2 includes an upper flange-shaped portion 1 that extends outwardly around the opening and the bottom 11.
2 and lower flange 13. Further, the main body 2 includes two small flange-shaped portions 14 and 15 that circulate around the peripheral surface between the upper flange-shaped portion 12 and the lower flange-shaped portion 13 and have a smaller extent of outward expansion than these.
The four flanges 21, 22, 21, 22 protrude upward from the upper flange-shaped portion 12 at intervals of 90 degrees. The suspension hands 21, 22, 21, and 22 are used when the mold 1 is moved by a hoist type crane or the like.

The main body 2 is equally divided into two (2a, 2b) in the longitudinal direction of the oval cross section by a dividing surface including the axis of the frustum. The main body 2 is formed of cast steel.
The outer frame 3 is a frustum having an elliptical cross section similar to that of the main body 2 as a whole. The outer frame 3 has a cylindrical shape that is slightly larger than the main body 2 and has openings corresponding to both bottom surfaces. Similarly to the main body 2, the outer frame 3 is equally divided into two (3a, 3b) in the longitudinal direction of the oval cross section by a dividing surface including the axis of the frustum.

  Each of the equally divided parts 3a and 3b has plate-like joints 23, 23, 24, and 24 that protrude outwardly perpendicular to the peripheral surface along the generatrix of the peripheral surface of the frustum at the divided edges. Is provided. In the outer frame 3 integrated in a frustum shape, two equally divided joint portions 23, 23 of the one 3a and the joint portions 24, 24 of the other 3b are in close contact with each other. The joint portions 23 and 24 connect the bottom surfaces of the frustum and have two notches 34 between the bottom surfaces. The main body of the outer frame 3 is formed of cast steel or steel plate.

Integration of the equally divided outer frame 3 is performed by the four connecting devices 5, 5, 5, and 5. The coupling device 5 includes a movable part 25, a fixed part 26, and a fixture 27.
The movable portion 25 is attached in the vicinity of the notch 34 of the joint portion 23 of the one 3a of the equally divided main body 3. The movable portion 25 includes a pair of thick plate-like shaft support portions 28 that protrude in parallel with an interval on the side opposite to the joint surface of the joint portion 23, a shaft 29 that connects the shaft support portions 28, and a movable body 30. Consists of.

  The movable body 30 is an elongate thick plate, and the vicinity of one end in the longitudinal direction is rotatably supported by a shaft 29 between a pair of thick plates of the shaft support portion 28. The movable body 30 is provided with a fixing tool hole 31 having a rectangular cross section penetrating in the same direction as the shaft 29 slightly on the other end side from the center in the longitudinal direction. The fixture hole 31 is a right-angled trapezoid whose cross-sectional shape in a front view (FIGS. 2, 6B, and 6E) has a long bottom on the top. The thickness of the movable body 30 is smaller than the width of the notch 34 in the joint portions 23 and 24 (the vertical dimension in FIGS. 2 and 3).

  The fixing portion 26 is attached in the vicinity of the notch 34 of the joint portion 24 of the one 3b of the main body 3 that is equally divided. The fixing portion 26 is a pair of thick plate-like portions that are long in the protruding direction and protrude in parallel with a gap on the side opposite to the bonding surface of the bonding portion 24. The distance between the pair of thick plate portions is such that the movable body 30 just fits. The fixing portion 26 is provided with two holes 32 and 33 penetrating in a direction substantially the same as the direction in which the shaft 29 extends in a longitudinal direction. The width of the holes 32 and 33 (the vertical dimension in FIGS. 1 and 6A) is substantially equal to the width of the fixture hole 31 (the horizontal dimension in FIG. 6D). The holes 32 and 33 are trapezoidal trapezoids whose cross-sectional shape in front view (FIGS. 2, 6B, and 6E) has a long bottom on the top.

The fixture 27 is a right trapezoidal thick plate having a height higher than that of the bottom. The thickness of the fixture 27 is slightly smaller than the width of the holes 32 and 33.
Here, the relationship between the main body 2 and the outer frame 3 will be described.
2 to 5, in the mold 1, it can be said that the main body 2 is accommodated in the outer frame 3 and the outer frame 3 covers the main body 2. In the vicinity of both openings (in the cylindrical form) of the equally divided one 3a of the outer frame 3 that is cylindrical, the outer periphery of the upper flanged part 12 of the equally divided one 2a of the main body 2 and the lower flanged part 13 Each is fixed to the outer periphery. Similarly, the vicinity of both openings of the other 3b is fixed to the outer periphery of the upper flange-shaped portion 12 and the outer periphery of the lower flange-shaped portion 13 of the other 2b. In the casting mold 1, the equally divided one 3 a of the outer frame 3 is integrated with the equally divided one 2 a of the main body 2, and the other half 3 b of the outer frame 3 is integrated with the other half 2 b of the main body 2. ing. Thus, the mold 1 itself can be equally divided into two.

When integrated between the outer peripheral surface of the main body 2 (2a, 2b) and the inner peripheral surface of the outer frame 3 (3a, 3b), a space is generated. By utilizing the fact that this space is generated, a refractory material 35 made of heat-resistant glass fiber, ceramic fiber, or other inorganic material having heat insulation is attached to the space corresponding portion of the main body 2 before integration. The refractory material 35 does not move in the space even when an impact is applied to the mold 1 due to the presence of the small flange-like portions 14 and 15 (protruding outward), and the refractory material 35 is unevenly distributed to a specific portion (for example, downward) Is prevented.

As the refractory material 35, a solid material or the like can be used in addition to a fiber material as long as it prevents convection of air in the space and blocks radiation.
The lid 4 has a columnar shape with an appearance that both bottom surfaces are oval and have a low height. The length in the longitudinal direction of the bottom surface and the length in the direction perpendicular thereto are larger than the length in the longitudinal direction in the opening of the main body 2 and the length in the direction perpendicular thereto, respectively. Two hanging hands 45, 45 are provided on the upper surface of the lid 4. The lid 4 is provided with a space inside, and this space accommodates the same refractory material 35 accommodated between the main body 2 and the outer frame 3. The lid 4 is made of cast steel.

The mold 4 has a lid 4 detachable, and the lid 4 is attached and detached by, for example, a hoist type crane. In the mold 1, an integrated body of the main body 2 and the outer frame 3 (hereinafter referred to as “mold main body”) can be equally divided into two.
The lid 4 may be integrated with the mold main body so as to be opened and closed by a hinge or the like, or divided into two equal parts, and may be opened and closed by moving in the opposite direction.

  Maintenance of integration of the mold body is performed by the four connecting devices 5, 5, 5, and 5. Referring to FIG. 6, the movable portion 25 in the coupling device 5 is fixed to one of the mold main bodies that can be divided into two (the main body 2 a and the outer frame 3 a side), and the fixing portion 26 is the other of the mold main bodies (the main body 2 b and the outer frame Frame 3b side). The movable body 30 in the movable portion 25 is rotated between the fixed portions 26 that protrude in parallel through the notches 34 of the joint portions 23 and 24 that are in contact with each other in the mold body. In this state, the fixture hole 31 of the movable portion 25 communicates with the hole 32 of the fixture portion 26, and the fixture 27 passes through the fixture hole 31 and the hole 32.

  The movable body 30 is held between the fixing portions 26 while being prevented from rotating by the fixing tool 27. When the fixture hole 31 and the hole 32 communicate (overlap vertically), the inner surfaces of the joint portions 23 and 24 are parallel to the joint portions 23 and 24. The fixing tool hole 31 and the hole 32 are right-angled trapezoids whose cross-sectional shape in a front view has a long base on the top, and the apex angle adjacent to the perpendicular angle is a right angle in the fixing tool 27 which is a right-angled trapezoid. Is equal to the angle of the apex angle adjacent to the apex angle forming That is, the inclination angle of the hypotenuse of the right trapezoid in the cross section of the fixture hole 31 and the hole 32 is equal to the inclination angle of the hypotenuse of the right trapezoid in the fixture 27.

  The cross-sectional shape of the fixture hole 31 and the hole 32 in communication with each other when viewed from the front is such that the inner surfaces 36 and 37 on the joint portions 23 and 24 side are located in the same plane and face the opposite surfaces. 38 and 39 are also in the same plane. However, the inner surface 36 on the joint 23, 24 side of the fixture hole 31 is slightly joined to the inner surface 37 on the joint 23, 24 side of the hole 32 even when the joint 23 is in close contact with the joint 24. Located on the part 23, 24 side.

In the mold main body, the inner surface 37 of the fixing portion 26 on the side of the joint portions 23 and 24 in the hole 32 engages the side surface 40 of the fixing device 27 facing the joint portions 23 and 24, and the fixing device 27 is inclined. The side surface 41 locks the inclined inner surface 38 of the fixing member hole 31 of the movable body 30 (FIG. 6C).
In the mold body, by pressing the fixing tool 27 into the hole 32 of the fixing portion 26 (arrow Ar1), the joining portion 23 of the outer frame 3a approaches the joining portion 24 of the outer frame 3b, and the joining portion 23 eventually becomes the joining portion 2. It is configured to be in close contact with.

The mold body is separated by removing the fixing tool 27 of each of the four connecting devices 5, 5, 5, and 5 from the fixing tool hole 31, and rotating the movable part 25 by 90 degrees or more to remove it from the notch 34. (FIGS. 6D and 6E).
Next, the process of manufacturing the artificial stone by cooling the reduced slag with the mold 1 will be described.
The casting mold 1 into which reducing slag by-produced from the electric furnace is injected is maintained at 1380 ° C. to 1410 ° C. for a predetermined time with the lid 4 attached. Thereafter, the lid 4 is removed and the reducing slag is cooled by radiation from the top surface and air convection at the top of the top surface. At this time, the temperature drop (cooling rate) of the reducing slag per unit time is monitored, and when the cooling rate is low, hot air, hot air or cold air is blown onto the upper surface of the reducing slag. While controlling the temperature of the reducing slag so as to bring the cooling rate close to a predetermined value, it is cooled to 400 ° C., and then naturally cooled to a temperature at which it can be taken out.

By these series of treatments, artificial stone is produced from the reduced slag.
The mold 1 can promote the cooling of the reducing slag by removing the lid 4. Further, cooling can be further promoted by removing the lid 4 and blowing cool air or the like onto the reducing slag.
FIG. 7 is a view showing another mold 1B, and FIG. 8 is a view showing handling of the lid 4B. 7A is a plan view, and FIG. 7B is a cross-sectional view taken along the line AA in FIG. 7A for the lid 4B of the mold 1B.

The mold 1B includes a main body 2, an outer frame 3, a lid 4B, and the like. The mold 1B is different from the mold 1 only in the lid 4B, and the other main body 2, outer frame 3 and the like are the same as those in the mold 1. Parts of the mold 1B having the same configuration as those of the mold 1 are denoted by the same reference numerals as those of the mold 1 in the drawing and description thereof is omitted.
The lid 4B includes an outer lid 6B and an inner lid 7B.

  The outer lid 6B is a columnar shape having a low appearance with an oval shape on both bottom surfaces, and an inner lid hole 46B having an elliptical cross-sectional shape passes through the center of the column body. On the upper surface of the outer lid 6B, a pair of protruding plates 47B and 47B are provided at opposing positions sandwiching the inner lid hole 46B. The protruding plates 47B and 47B are arranged at positions that coincide with a symmetry plane that bisects the outer lid 6B in plane symmetry in a plan view (FIG. 7A). The projecting plates 47B and 47B have circular holes (hereinafter referred to as “round holes”) that penetrate in the plate-like thickness direction and have the same center. The outer lid 6B is provided with a pair of suspenders 45, 45 that are arranged perpendicularly with the protruding plates 47B, 47B across the inner lid hole 46B.

  The inner lid 7B has the appearance of an elliptic cylinder, and the shape of the ellipse is a similar shape slightly smaller than the cross-sectional shape of the inner lid hole 46B of the outer lid 6B. On the upper surface of the inner lid 7B, a pair of projecting plates 48B and 48B are provided at positions that coincide with a symmetry plane that bisects in plane symmetry in plan view (FIG. 7A). The projecting plates 48B and 48B have circular holes (hereinafter referred to as “round holes”) penetrating in the plate-like thickness direction and having the same center. The protruding plates 48B and 48B are arranged on a straight line in the lid 4B, and these round holes have a common axis.

The inner lid 7B has a pair of hanging hands 49B and 49B arranged on the upper surface of the protruding plates 48B and 48B.
The outer lid 6B and the inner lid 7B constitute the lid 4B by passing the round bar 50B through the round holes of the projection plates 47B and 47B and the round holes of the projection plates 48B and 48B arranged in a row. The clearance between the peripheral surface of the inner lid hole 46B of the outer lid 6B and the outer peripheral surface of the inner lid 7B is small, and when it is lifted by the lifting hands 45, 45, the integration of the outer lid 6B and the inner lid 7B is stably maintained. Be drunk.

The same thing as the refractory 35 accommodated between the main body 2 and the outer frame 3 is accommodated inside the outer lid 6B and the inner lid 7B.
With reference to FIG. 8, manufacture of the artificial stone by the casting_mold | template 1B is demonstrated below.
The casting mold 1B that has received the reducing slag from the electric furnace is left for the purpose of heat insulation with the lid 4B being put on for a while. The mold 1B is kept warm by the refractory material 35, and the temperature inside the mold 1B gradually decreases due to radiation from the surface of the mold 1B and convection outside the mold 1B.

  When the inside of the mold 1B reaches a predetermined temperature or this state is maintained for a predetermined time, the round bar 50B is extracted from the lid 4B to separate and remove the inner lid 7B (FIG. 8B). The inside and outside of the mold 1B communicate with each other through the inner lid hole 46B. Cooling of the reducing slag is promoted by radiation from the upper surface and convection of air outward from the upper surface. The removed inner lid 7B is placed on the stand St.

When the cooling rate falls below a predetermined value or when a predetermined time has elapsed, the outer lid 6B is removed from the mold 1B. By this operation, the opening area of the mold body is increased, radiation from the surface of the reduced slag and air convection are increased, and cooling of the reduced slag is promoted.
When the reduced slag reaches a predetermined temperature, the production of artificial stone is finished.
The outer lid 6B from which the outer lid 6B has been removed from the mold 1B is placed on the platform St from above so that the inner lid 7B placed on the platform St fits in the inner lid hole 46B (FIG. 8C). Subsequently, the round bar 50B is inserted into the round holes of the projection plates 47B, 47B, 48B, 48B of the outer lid 6B and the inner lid 7B (FIG. 8 (d)), and the outer lid 6B and the inner lid 7B are formed as an integral lid. It becomes movable as 4B.

The lid 4B can be separated into an outer lid 6B and an inner lid 7B, and only the inner lid 7B can be removed while monitoring the cooling rate during the cooling process of the reducing slag. Therefore, the mold 1B can adjust the cooling of the reducing slag more finely than the mold 1 having the lid 4 that cannot be separated.
Since the outer shape of the inner lid 7B (which is also the shape of the inner lid hole 46B) is an ellipse, the lid 4B has a specific posture in order to fit the inner lid 7B into the inner lid hole 46B. There is a need to. And as long as this specific posture is adopted, the four protruding plates 47B, 47B, 48B, 48B are always arranged in a line, and the round bar 50B can be easily inserted into these round holes.

The peripheral surface of the inner lid hole 46B of the outer lid 6B and the outer periphery of the inner lid 7B are formed so that the inner lid 7B can be inserted from both directions (upward and downward) of the opening of the inner lid hole 46B. Thus, the outer lid 6B and the inner lid 7B can be separated and integrated without any trouble (FIGS. 8B and 8C).
FIG. 9 is a view showing another mold 1C. 9A is a plan view, FIG. 9B is a view taken along the line B-B in FIG. 9A, and FIG. 9C is a diagram illustrating the turning of the cool air at the end of cooling.

The mold 1C includes a main body 2, an outer frame 3, a lid 4C, and the like. The mold 1C is different from the mold 1B only in the outer lid 6C, and the other main body 2, outer frame 3, inner lid 7B and the like are the same as those in the mold 1B. Parts of the mold 1C having the same configuration as that of the mold 1B are denoted by the same reference numerals as those of the mold 1B in FIG.
The basic configuration such as the appearance of the outer lid 6C is the same as that of the outer lid 6B of the mold 1B. The outer lid 6C is different from the outer lid 6B only in having a pair of cold air introducing means 55C and 55C.

The cold air introducing means 55C is formed by a circular pipe that penetrates the outer lid 6C vertically (front and back as a lid). The circular tube is inclined approximately 30 degrees with respect to the upper surface (front surface) of the outer lid 6C. The circular tube does not protrude on the lower surface (back surface) of the outer lid 6C, and protrudes upward only on the upper surface. The portion protruding above the circular tube is connected to the blower during cooling.
The pair of cold air introducing means 55C, 55C is arranged in the vicinity of the outer periphery of the outer lid 6C so that the two are point-symmetric.

One or three or more cold air introducing means 55C may be used instead of a pair.
Manufacture of the artificial stone by the mold 1C is the same as the manufacture of the artificial stone by the mold 1B until the inner lid 7B is removed. Natural cooling is performed for a while after the inner lid 7B is removed.
When the cooling rate of the reducing slag is lower than the set value in natural cooling, cold air is sent from the blower through the cold air introduction means 55C into the mold 1C. The cold air turns in the mold 1C and is discharged from the inner lid hole 46B of the outer lid 6C (FIG. 9C). The cold air is supplied to both or one of the pair of cold air introducing means 55C and 55C.

The “cold air” sent into the mold 1C is not a general cold air, which means a cooling gas, but heated air may be supplied according to the temperature of the reducing slag. When the temperature of the reducing slag is high, hot air or hot air heated by a heater is more effective in preventing local cooling of the reducing slag.
The mold 1C having the cold air introduction means 55C can promote the cooling of the reducing slag and finely manage (control) the cooling speed by combining various temperatures and supply amounts of the cold air (including hot air).

FIG. 10 and FIG. 11 are diagrams showing the temperature change of the reduced slag when artificial stone is produced from the mold 1.
The operation for manufacturing the artificial stone in FIG. 1 was performed as follows.
Reduced slag of approximately 1550 ° C. by-produced in the electric furnace is injected into the mold body 1. After injection of the reduced slag, the opening of the mold body is closed with the lid 4 and held in this state for 3 hours. During this time, the temperature of the reducing slag in the mold 1 is maintained at 1410 ° C to 1380 ° C.

Thereafter, the lid 4 is removed from the mold 1 to expose the opening of the mold body. The reduced slag is naturally cooled in the mold body and solidifies into an artificial stone. The cooling rate from when the opening of the mold body was exposed until the temperature of the reducing slag reached 400 ° C. was 10 ° C./Hr to 20 ° C./Hr.
In another manufacture of the artificial stone showing the temperature history in FIG. 2, the operation was performed as follows.
Reduced slag of about 1550 ° C. produced as a by-product in the electric furnace is poured into the mold body. The opening of the mold body is held with the lid 4 closed. During this time, the temperature of the reducing slag in the mold 1 is maintained at 1410 ° C to 1380 ° C.

After 2 hours, the lid 4 is removed from the mold 1 to expose the opening of the mold body. Also in this production example, the cooling rate from the opening of the mold body to the temperature of the reduced slag reaching 400 ° C. was 10 ° C./Hr to 20 ° C./Hr.
In the mold 1, the opening of the mold 1 is closed by the lid 4 when maintaining the reduced slag at a high temperature, and the lid 4 is removed from the mold 1 when gradually reducing the temperature of the reduced slag. In order to further promote cooling, hot air, hot air, or cold air having a temperature lower than that of the reduced slag may be blown on the upper surface of the reduced slag.

If a cooling rate faster than a predetermined value is observed after removing the lid 4, the opening of the mold body is closed again by the lid 4.
In the above-described embodiment, the structure of the molds 1, 1B, 1C and the molds 1, 1B, 1C or the overall structure, shape, dimensions, number, material, and the like can be appropriately changed in accordance with the spirit of the present invention. it can.

  The present invention can be used, for example, as a mold for housing slag generated in the hot metal or steelmaking process.

1, 1B, 1C Mold 2 Main body 2a, 2b One side divided into three main bodies 3 Outer frame 3a, 3b One side divided into four outer frames 4, 4B, 4C Lid 5 Connecting device 11 Bottom of main body
12 Upper flange part
13 Lower flange part
14 Small flange
15 Small flange-shaped part 35 Refractory material (for mold)

Claims (3)

A mold for containing slag produced during hot metal or steel making process,
A body that is a container;
An outer frame that houses the main body inside and forms a space between the outer periphery of the main body,
A lid for closing the upper opening of the main body ,
The body is
An upper flange-like portion and a lower flange-like portion that extend outward both around the opening and around the bottom; and
A small flange-shaped portion that spreads outward between the upper flange-shaped portion and the lower flange-shaped portion and circulates around the peripheral surface of the main body.
A refractory material is attached to the space formed by the main body and the outer frame,
The position of the lid can be changed so that the opening is exposed. The main body and the outer frame are divided into two by a cross section that bisects the bottom of the main body and the opening in a state where the outer frame houses the main body,
The mold according to claim 1, wherein each of the two parts is integrated so as to be split by a connecting device. The inner surface of the main body is inclined inward from the opening toward the bottom, and the degree of the inclination is 10 degrees to 25 degrees with respect to the vertical direction. template.

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