CN220945888U - Forming die of coke oven baking hole refractory brick - Google Patents
Forming die of coke oven baking hole refractory brick Download PDFInfo
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- CN220945888U CN220945888U CN202322726131.5U CN202322726131U CN220945888U CN 220945888 U CN220945888 U CN 220945888U CN 202322726131 U CN202322726131 U CN 202322726131U CN 220945888 U CN220945888 U CN 220945888U
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- 239000011449 brick Substances 0.000 title claims abstract description 156
- 239000000571 coke Substances 0.000 title claims abstract description 42
- 238000009434 installation Methods 0.000 claims abstract description 7
- 238000005520 cutting process Methods 0.000 claims description 44
- 230000007704 transition Effects 0.000 claims description 35
- 238000003825 pressing Methods 0.000 claims description 16
- 210000001503 joint Anatomy 0.000 claims description 10
- 230000002146 bilateral effect Effects 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims 2
- 235000017491 Bambusa tulda Nutrition 0.000 claims 2
- 241001330002 Bambuseae Species 0.000 claims 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims 2
- 239000011425 bamboo Substances 0.000 claims 2
- 239000004927 clay Substances 0.000 abstract description 8
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000000465 moulding Methods 0.000 description 65
- 238000003763 carbonization Methods 0.000 description 8
- 238000002485 combustion reaction Methods 0.000 description 8
- 239000002994 raw material Substances 0.000 description 6
- 230000000903 blocking effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- 230000009970 fire resistant effect Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
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Abstract
The utility model belongs to the technical field of forming of refractory bricks of oven holes of coke ovens, and discloses a forming die of refractory bricks of oven holes of coke ovens, wherein an upper cover is arranged in an upper forming cavity at the upper part of a die cylinder; the lantern ring is arranged in the lantern ring installation cavity; the core passes through the first core hole and is inserted into the center of the intermediate body, and the main core, the frustum core and the bottom core are formed into an integral structure. The utility model has the beneficial effects that: 1. the bonding strength among the baking furnace hole bricks, the coke furnace refractory lining body and the refractory clay is improved, and the falling of the baking furnace hole bricks is effectively prevented. 2. The end part of the vent pipe is prevented from being directly corroded by high temperature, and the service life of the vent pipe is prolonged. 3. The conical holes of the baking hole bricks are utilized, so that the matching degree of the conical plugging bricks and the conical holes of the baking hole bricks is improved, and the conical plugging bricks are effectively prevented from loosening or falling easily.
Description
Technical Field
The utility model belongs to the technical field of forming of refractory bricks for oven holes of coke ovens, and particularly relates to a forming die for refractory bricks for oven holes of coke ovens.
Background
The coke oven is an industrial kiln for refining coke, the uppermost part of a modern coke oven body is a furnace top, the lower part of the furnace top is a combustion chamber and a carbonization chamber which are arranged at intervals, a regenerator and a chute area for connecting the regenerator and the combustion chamber are arranged at the lower part of the oven body, and a small flue at the lower part of each regenerator is connected with a flue through an exhaust gas shutter. The flue is arranged in the coke oven foundation or at two sides of the foundation, and the tail end of the flue is communicated with the chimney. The baking hole is a channel which is arranged at the positions of the coal charging hole and the ascending pipe hole and is used for connecting the carbonization chamber and the combustion chamber. For the coke oven, when the refractory brick of the coke oven is replaced or subjected to local repair, the refractory brick of the coke oven is in a cold state. According to the thermal technology requirements of the coke oven, the oven baking operation is required to be carried out on the fire-resistant brickwork of the coke oven.
In the prior art, the baking furnace is used for baking a cold-state coke oven fire-resistant masonry, and the masonry refractory bricks are subjected to drying, dehydration and heating stages, so that the temperature of the coke oven reaches over 900-1000 degrees, and the preparation work is carried out for the transition of the coke oven from the cold state to the normal production state. When the oven is used, fuel is burnt in the oven range outside the two sealing walls of the carbonization chamber, and waste gas for the oven enters the combustion chamber through the carbonization chamber and the oven hole. And after the baking is finished, the cone-shaped blocking bricks block the baking holes. The main technical problems of the currently used refractory bricks for the baking furnace holes are as follows: 1. because the baking hole refractory bricks used at present are cylindrical, when the baking hole refractory bricks are built in the refractory lining body and are mainly bonded through refractory clay, the refractory clay between the baking hole refractory bricks and the refractory lining body is washed out at high temperature for a long time in a high-temperature environment, and the refractory clay is easy to fall off, so that the baking hole refractory bricks fall off. 2. The cylindrical baking hole refractory bricks used at present are flush with the inner walls of the channels of the carbonization chamber and the combustion chamber, and meanwhile, the vent pipe is flush with the end faces of the cylindrical baking hole refractory bricks, so that high temperature in the channels of the carbonization chamber and the combustion chamber is directly radiated to the end parts of the vent pipe, the end parts of the vent pipe are corroded at high temperature, and the service life of the vent pipe is reduced. 3. Because the fire brick with the baking hole is cylindrical, the vent hole of the fire brick with the baking hole is blocked by the conical blocking brick after the baking is finished, and obviously, the vent hole of the fire brick with the baking hole is round and has poor matching with the conical blocking brick, and the conical blocking brick is easy to loosen and even fall off. The inventor develops a forming die for a furnace hole refractory brick of a coke oven based on the defects in the prior art, and the furnace hole refractory brick formed by using the forming die can solve the technical problems in the prior art.
Disclosure of utility model
In order to solve the technical problems, the utility model provides a forming die for a coke oven baking hole refractory brick, which has simple, scientific and reasonable design structure and high degree of coordination between the dies; the utility model can solve the problem that refractory bricks in the cylindrical furnace baking hole are easy to fall off due to refractory clay, thereby leading to falling off of the refractory bricks in the baking hole, and also solves the problem that the service life is reduced due to long-time high-temperature corrosion of the vent pipe arranged in the refractory bricks in the cylindrical furnace baking hole; and the problems that the vent holes of the cylindrical baking furnace hole refractory bricks are not good in matching with the conical plugging bricks, and the conical plugging bricks are easy to loosen or even fall off are also solved.
The technical scheme adopted by the utility model is as follows: the forming die for the refractory bricks of the oven holes of the coke ovens comprises a die cylinder 1, an upper cover 2 and a lantern ring 3, wherein the die cylinder 1 is cylindrical, the die cylinder 1 comprises a die cylinder body 11, a cylindrical upper forming cavity 12 is arranged at the upper end inside the die cylinder body 11, a middle forming cavity 13 is arranged at the middle position inside the die cylinder body 11, and the middle forming cavity 13 is in a frustum shape with a large upper end diameter and a small lower end diameter; a lower molding cavity 14 is provided at a lower position of the intermediate molding cavity 13, and a collar mounting cavity 15 is provided at a lower position of the lower molding cavity 14; the upper cover 2 is arranged in the upper forming cavity 12 at the upper part of the die cylinder 1, the upper cover 2 comprises a middle body 21 and side part bodies 22, the side part bodies 22 are spliced at two side positions of the middle body 21 in a butt joint manner, and the middle body 21 and the side part bodies 22 are spliced to form the upper cover 2 in a butt joint manner; the lantern ring 3 is installed in the lantern ring installation cavity 15, the lantern ring 3 comprises a lantern ring body 31, the lantern ring body 31 is cylindrical, and a core hole I32 is formed in the center of the lantern ring body 31; the core 4 passes through the first core hole 32 and is inserted into the center of the intermediate body 21, the core 4 comprises a main core 41, the main core 41 is cylindrical, the frustum core 42 is fixedly arranged at the lower part of the main core 41, the bottom core 43 is cylindrical, the bottom core 43 is fixedly arranged at the lower part of the frustum core 42, and the main core 41, the frustum core 42 and the bottom core 43 are integrally formed.
The upper forming cavity 12, the middle forming cavity 13, the lower forming cavity 14 and the lantern ring mounting cavity 15 are in transitional smooth connection; the upper molding cavity 12 and the lower molding cavity 14 are provided with draft angles; the upper molding cavity 12 is flush with the upper portion of the mold cylinder body 11, and the lower molding cavity 14 is flush with the bottom of the mold cylinder body 11.
The upper surface of the upper cover 2 is flush with the upper end surface of the die cylinder body 11.
The intermediate body 21 comprises a circular body 211, a core hole 212 is formed in the center of the circular body 211, a boss 213 is arranged in the center of the bottom of the circular body 211, and the core hole 212 is a through hole penetrating through the circular body 211 and the boss 213; the first cutting surface 214 is disposed at the left side of the circular body 211, the second cutting surface 215 is disposed at the right side of the circular body 211, and the first cutting surface 214 and the second cutting surface 215 are disposed in bilateral symmetry.
The side part 22 comprises an arc-shaped block 221, the outer surface of the arc-shaped block 221 is arc-shaped, the inner side surface of the arc-shaped block 221 is plane-shaped, an elliptical transition block 222 is arranged at the lower part of the arc-shaped block 221, the upper end surface of the elliptical transition block 222 is equal to the bottom end surface of the arc-shaped block 221 in size, and the elliptical transition block 222 is gradually thinned from top to bottom; the arcuate block 221 and the elliptical transition block 222 are connected as a unitary, one-piece structure.
The left side of a first cutting surface 214 of the circular body 211 is butt-jointed and spliced with a side part body 22, and the right side of a second cutting surface 215 is butt-jointed and spliced with a side part body 22; the inner side surface of the arc-shaped block 221 of the first 214 left side part 22 is tightly attached to the first 214 left side surface of the cutting surface, and the inner side surface of the arc-shaped block 221 of the second 215 right side part 22 is tightly attached to the second 215 right side surface of the cutting surface; the upper end of the arc-shaped block 221 is flush with the upper face of the circular body 211.
The outer surface of the arc-shaped block 221 is tightly attached to the inner wall of the upper forming cavity 12, and the outer surface of the elliptical transition block 222 is tightly attached to the inner wall of the middle forming cavity 13.
The lower end surface of the collar body 31 is flush with the lower end surface of the die cylinder body 11.
The diameter of the first core hole 32 is larger than that of the core hole 212 in the center of the circular body 211; the first core hole 32 and the second core hole 212 are vertically centered.
The diameter of the main core 41 is equal to the diameter of the upper end surface of the frustum core 42, and the diameter of the bottom of the frustum core 42 is equal to the diameter of the end surface of the bottom core 43; the diameter of the main core 41 is smaller than the diameter of the bottom core 43.
The bottom core 43 is installed in the first core hole 32, and the height of the lantern ring body 31 is equal to the height of the bottom core 43; the main core 41 is mounted in the core hole 212 of the circular body 211.
The baking hole brick 5 formed by the forming die of the baking hole refractory brick comprises an upper brick body 51, wherein the upper brick body 51 is a circular frustum with the diameter gradually increasing from bottom to top, a first plane 52 is arranged at the left side of the upper brick body 51, a second plane 53 is arranged at the right side of the upper brick body 52, and the first plane 52 and the second plane 53 are arranged in bilateral symmetry; the circle center groove 54 is arranged at the center of the upper end of the upper brick body 51; the lower brick body 55 is fixedly arranged at the lower part of the upper brick body 51, and the upper brick body 51 and the lower brick body 55 are of an integral structure formed by machine pressing; the taper hole 57 is formed in the center of the bottom of the lower brick body 55, the vent hole 56 is formed in the centers of the upper brick body 51 and the lower brick body 55, the upper portion of the vent hole 56 is communicated with the circle center groove 54, and the lower portion of the vent hole 56 is communicated with the taper hole 57.
The assembly and molding process of the molding die of the refractory brick for the oven baking hole of the coke oven comprises the following steps: 1. assembling a forming die of the fire brick of the oven baking hole of the coke oven: firstly, inserting a core 4 into a first core hole 32 of a lantern ring 3, then installing the lantern ring 3 and the core 4 together at the bottom position of a die cylinder body 11 of a die cylinder 1, then placing the lantern ring 3, the die cylinder 1 and the core 4 at the center position of a die frame, fixing the die cylinder 1 firmly by using a fixing bolt and a nut of the die frame, and fixing the die frame on a working platform of a press; at this time, the upper molding cavity 12, the middle molding cavity 13 and the lower molding cavity 14 of the mold cylinder 1 are distributed (the refractory brick molding raw materials are scraped off, and the entire mold cylinder is not required to be slowed down by the molding raw materials; finally, the intermediate body 21 of the upper cover 2 is placed in the center position (close to the surface of the molding raw material) of the upper molding cavity 12 of the mold cylinder body 11, and simultaneously the arc-shaped block 221 and the elliptic transition block 222 of the side part body 22 are respectively inserted into the outer side positions of the first cutting surface 214 and the second cutting surface 215 of the intermediate body 21, so that the inner side surfaces of the arc-shaped block 221 and the elliptic transition block 222 are aligned with the first cutting surface 214 and the second cutting surface 215 in a bonding mode, and the outer arc-shaped surfaces of the arc-shaped block 221 and the elliptic transition block 222 are bonded with the inner wall of the upper molding cavity 12 of the mold cylinder body 11. 2. The forming process of the fire brick for the oven baking hole of the coke oven comprises the following steps: after the above-mentioned forming die for the oven hole refractory brick is distributed and assembled, the middle body 21 and the side parts 22 on both sides of the upper cover 2 are pressed by the pressing head of the press machine, and the pressing force is applied downward, and the middle body 21 and the side parts 22 on both sides of the upper cover 2 move downward along the main core 41 of the core 4 until the oven hole brick 5 is pressed (the downward movement stroke of the upper cover 2 is determined by the pressing stroke of the pressing force and the height of the oven hole brick 5). As for demolding of the oven hole bricks 5, reverse operation of assembling the oven hole refractory brick molding die is carried out.
The die cylinder 1 is cylindrical, the die cylinder 1 comprises a die cylinder body 11, a cylindrical upper forming cavity 12 is arranged at the upper end inside the die cylinder body 11, a middle forming cavity 13 is arranged at the middle position inside the die cylinder body 11, and the middle forming cavity 13 is in a frustum shape with a large upper end diameter and a small lower end diameter; a lower molding cavity 14 is provided at a lower position of the intermediate molding cavity 13, and a collar mounting cavity 15 is provided at a lower position of the lower molding cavity 14; the upper forming cavity 12, the middle forming cavity 13, the lower forming cavity 14 and the lantern ring mounting cavity 15 are in transition smooth connection; the upper molding cavity 12 and the lower molding cavity 14 are provided with draft angles; the upper molding cavity 12 is flush with the upper portion of the mold cylinder body 11, and the lower molding cavity 14 is flush with the bottom of the mold cylinder body 11. In which the upper molding cavity 12 and the middle molding cavity 13 are provided, and the upper brick body 51 and the ventilation holes 56 of the oven hole brick 5 are formed in press-fit with the boss 213 of the intermediate body 21 of the upper cover 2, the core 4 and the press. Wherein the arc blocks 221 and the elliptical transition blocks 222 of the side part body 22 are arranged at both sides of the intermediate body 21, and the plane one 52 and the plane two 53 of the oven hole brick 5 are formed by the cooperation of the upper forming cavity 12, the core 4 and the press. Wherein the lower brick body 51 and the ventilation holes 56 of the oven hole brick 5 are formed by providing the lower molding cavity 14 in press-fit with the core 4, the upper cover 2 and the press. Wherein through the setting of lantern ring installation cavity 15, provide the space for the installation of lantern ring 3, utilize the lantern ring 3 to play fixed spacing's effect to the bottom core 43 of core 4.
The upper cover 2 is arranged in the upper forming cavity 12 at the upper part of the die cylinder 1, the upper cover 2 comprises a middle body 21 and side part bodies 22, the side part bodies 22 are spliced at two side positions of the middle body 21 in a butt joint manner, and the middle body 21 and the side part bodies 22 are spliced to form the upper cover 2 in a butt joint manner. The main purpose of this arrangement is: by arranging the upper cover 2 into a split structure, on one hand, after the oven hole bricks 5 are formed by machine pressing, the upper cover 2 is convenient to disassemble and smooth Li Tuomo; on the other hand, the arc blocks 221 and the elliptic transition blocks 222 of the left and right side part bodies 22 are convenient to form the first plane 52 and the second plane 53 of the oven hole brick 5, and the first plane 52 and the second plane 53 of the left and right brick bodies 51 on the oven hole brick 5 are used for limiting (preventing relative rolling when the oven hole brick 5 is built), so that the bonding firmness among the oven hole brick 5, the oven refractory lining body and the refractory clay is improved.
The intermediate body 21 comprises a circular body 211, a core hole 212 is formed in the center of the circular body 211, a boss 213 is arranged in the center of the bottom of the circular body 211, and the core hole 212 is a through hole penetrating through the circular body 211 and the boss 213; the first cutting surface 214 is disposed at the left side of the circular body 211, the second cutting surface 215 is disposed at the right side of the circular body 211, and the first cutting surface 214 and the second cutting surface 215 are disposed in bilateral symmetry. The above arrangement of the core hole 212 provides a space for installing the main core 41 of the core 4, and on the other hand, the intermediate body 21 can be moved up and down by pushing the press ram with the core hole 212 and the main core 41. Through the arrangement of the boss 213, after the oven hole brick 5 is formed by machine pressing, the circle center groove 54 of the oven hole brick 5 is formed, so that the circle center groove 54 is used for preventing the vent pipe from high-temperature radiation, and the service life of the vent pipe is prolonged. The above arrangement of the first cutting surface 214 and the second cutting surface 215 provides a splicing and assembling plane for the arc-shaped block 221 and the elliptical transition block 222 of the side part body 22.
The side part 22 comprises an arc-shaped block 221, the outer surface of the arc-shaped block 221 is arc-shaped, the inner side surface of the arc-shaped block 221 is plane-shaped, an elliptical transition block 222 is arranged at the lower part of the arc-shaped block 221, the upper end surface of the elliptical transition block 222 is equal to the bottom end surface of the arc-shaped block 221 in size, and the elliptical transition block 222 is gradually thinned from top to bottom; the arcuate block 221 and the elliptical transition block 222 are connected as a unitary, one-piece structure. The arc blocks 221 and the elliptic transition blocks 222 of the side part body 22 are arranged, and are assembled with the first cutting surface 214 and the second cutting surface 215 of the intermediate body 21 in a splicing way, so that after the baking hole brick 5 is subjected to machine press demolding molding, a first plane 52 and a second plane 53 of the baking hole brick 5 are formed, and the flat contact surfaces of the first plane 52 and the second plane 53 are utilized, so that when the baking hole brick 5 is built (the baking hole brick 5 is contacted with the refractory lining body), on one hand, the bonding contact area of the refractory lining body and the refractory clay is improved, on the other hand, the building position of the baking hole brick 5 is limited, and the bonding firmness of the baking hole brick 5 and the refractory lining body is improved.
The lantern ring 3 is installed in the lantern ring installation cavity 15, the lantern ring 3 comprises a lantern ring body 31, the lantern ring body 31 is cylindrical, and a core hole I32 is formed in the center of the lantern ring body 31; the lower end surface of the collar body 31 is flush with the lower end surface of the die cylinder body 11. The first core hole 32 is formed in the center of the collar body 31, and the first core hole 32 is used to fix and limit the bottom core 43 on one hand, and to calibrate the core to have the corresponding upper and lower concentricity on the other hand.
The core 4 passes through the first core hole 32 and is inserted into the center of the intermediate body 21, the core 4 comprises a main core 41, the main core 41 is cylindrical, a frustum core 42 is fixedly arranged at the lower part of the main core 41, a bottom core 43 is cylindrical, the bottom core 43 is fixedly arranged at the lower part of the frustum core 42, and the main core 41, the frustum core 42 and the bottom core 43 are formed into an integral structure; the diameter of the first core hole 32 is larger than that of the core hole 212 in the center of the circular body 211; the first core hole 32 and the second core hole 212 are vertically centered; the diameter of the main core 41 is equal to the diameter of the upper end face of the frustum core 42, and the diameter of the bottom of the frustum core 42 is equal to the diameter of the end face of the bottom core 43; the diameter of the main core 41 is smaller than the diameter of the bottom core 43; the bottom core 43 is installed in the first core hole 32, and the height of the lantern ring body 31 is equal to the height of the bottom core 43; the main core 41 is mounted in the core hole 212 of the circular body 211. Through the arrangement of the main core 41, on one hand, the main core 41 plays a role in guiding, and when the intermediate body 21 of the upper cover 2 is pushed by the press head, the main core 41 cooperates with the core hole 212 on the intermediate body 21 to play a role in guiding. On the other hand, with the arrangement of the main core 41, after the oven hole brick 5 is subjected to machine press demolding molding, the vent hole 56 of the oven hole brick 5 is formed, so that high-temperature oven gas is introduced into the carbonization chamber and the combustion chamber of the coke oven. On the other hand, the main core 41 is provided to make the upper cover 2 and the collar 3 concentric up and down, so that the vent holes 56 formed by press-molding the oven hole bricks 5 are vertical up and down. Through the arrangement of the frustum core 42, after the baking hole brick 5 is subjected to machine pressing demolding molding, the conical hole 57 at the bottom of the baking hole brick 5 is formed, so that the conical plugging brick can be matched with the conical hole 57 of the baking hole brick 5 better, and the firmness of the matched plugging of the conical plugging brick and the conical hole 57 of the baking hole brick 5 is improved.
The utility model has the beneficial effects that: 1. the contact area between the baking hole bricks and the coke oven refractory lining body during the building is improved by utilizing the circular frustum structure, the plane I and the plane II of the baking hole bricks, so that the bonding strength among the baking hole bricks, the coke oven refractory lining body and the refractory mortar is improved, and the falling of the baking hole bricks is effectively prevented. 2. The center groove of the baking furnace hole brick is utilized to protect the vent pipe, so that the end part of the vent pipe is prevented from being directly corroded by high temperature, and the service life of the vent pipe is prolonged. 3. The conical holes of the baking hole bricks are utilized, so that the matching degree of the conical plugging bricks and the conical holes of the baking hole bricks is improved, and the conical plugging bricks are effectively prevented from loosening or falling easily.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a cross-sectional view of a mold cylinder according to the present utility model;
FIG. 3 is a schematic view of the structure of the upper cover, collar, and core of the present utility model;
FIG. 4 is a schematic structural view of the intermediate of the upper cover of the present utility model;
FIG. 5 is a schematic view of the collar of the present utility model;
FIG. 6 is a schematic structural view of a cartridge of the present utility model;
FIG. 7 is a schematic view of the structure of a kiln block according to the present utility model;
The marks in the figure: 1. the mold cylinder, 11, the mold cylinder body, 12, the upper forming cavity, 13, the middle forming cavity, 14, the lower forming cavity, 15, the collar mounting cavity, 2, the upper cover, 21, the middle body, 211, the round body, 212, the core hole, 213, the boss, 214, the first cutting surface, 215, the second cutting surface, 22, the side part body, 221, the arc block, 222, the elliptical transition block, 3, the collar, 31, the collar body, 32, the core hole, 4, the core, 41, the main core, 42, the frustum core, 43, the bottom core, 5, the oven hole brick, 51, the upper brick body, 52, the first plane, 53, the second plane, 54, the center groove, 55, the lower brick body, 56, the vent hole, 57 and the taper hole.
Detailed Description
The following describes the embodiments of the present utility model in further detail with reference to the drawings.
The utility model provides a forming die for a coke oven baking hole refractory brick, and the baking hole brick formed by the die:
As shown in fig. 1 and 2, the mold cylinder 1 is cylindrical, the mold cylinder 1 comprises a mold cylinder body 11, a cylindrical upper molding cavity 12 is arranged at the upper end inside the mold cylinder body 11, a middle molding cavity 13 is arranged at the middle position inside the mold cylinder body 11, and the middle molding cavity 13 is in a frustum shape with a large upper end diameter and a small lower end diameter; a lower molding cavity 14 is provided at a lower position of the intermediate molding cavity 13, and a collar mounting cavity 15 is provided at a lower position of the lower molding cavity 14; the upper forming cavity 12, the middle forming cavity 13, the lower forming cavity 14 and the lantern ring mounting cavity 15 are in transition smooth connection; the upper molding cavity 12 and the lower molding cavity 14 are provided with draft angles; the upper molding cavity 12 is flush with the upper portion of the mold cylinder body 11, and the lower molding cavity 14 is flush with the bottom of the mold cylinder body 11. The above arrangement of the upper molding cavity 12, the middle molding cavity 13 and the lower molding cavity 14 forms the molding cavity for molding the oven bricks 5 by machine pressing. The above arrangement through the collar cavity 15 provides space for the combined assembly of the collars. The upper molding cavity 12 and the lower molding cavity 14 are provided with draft angles; the drawing angles of the upper forming cavity 12 and the lower forming cavity 14 are mainly utilized to facilitate the demoulding of the oven hole bricks 5 after the press forming.
As shown in fig. 3 and 4, the upper cover 2 is installed in the upper forming cavity 12 at the upper part of the mold cylinder 1, the upper cover 2 comprises a middle body 21 and side part bodies 22, the side part bodies 22 are assembled at two sides of the middle body 21 in a butt joint manner, and the middle body 21 and the side part bodies 22 are assembled in a butt joint manner to form the upper cover 2. The upper cover 2 is provided with the split structure, so that after the oven hole bricks 5 are subjected to machine press molding, the upper cover 2 is convenient to disassemble, and further the oven hole bricks 5 can be smoothly demolded.
As shown in fig. 4, the intermediate body 21 includes a circular body 211, a core hole 212 is formed at a central position of the circular body 211, a boss 213 is disposed at a bottom central position of the circular body 211, and the core hole 212 is a through hole penetrating the circular body 211 and the boss 213; the first cutting surface 214 is disposed at the left side of the circular body 211, the second cutting surface 215 is disposed at the right side of the circular body 211, and the first cutting surface 214 and the second cutting surface 215 are disposed in bilateral symmetry. The above arrangement of the core hole 212 provides a space for installing the main core 41 of the core 4, and on the other hand, the intermediate body 21 can be moved up and down by pushing the press ram with the core hole 212 and the main core 41. Through the arrangement of the boss 213, after the oven hole brick 5 is formed by machine pressing, the circle center groove 54 of the oven hole brick 5 is formed, so that the circle center groove 54 is used for preventing the vent pipe from high-temperature radiation, and the service life of the vent pipe is prolonged. The above arrangement of the first cutting surface 214 and the second cutting surface 215 provides a splicing and assembling plane for the arc-shaped block 221 and the elliptical transition block 222 of the side part body 22.
As shown in fig. 3, the side part body 22 includes an arc-shaped block 221, the outer surface of the arc-shaped block 221 is arc-shaped, the inner side surface is plane-shaped, an elliptical transition block 222 is arranged at the lower part of the arc-shaped block 221, the upper end surface of the elliptical transition block 222 is equal to the bottom end surface of the arc-shaped block 221 in size, and the elliptical transition block 222 is gradually thinned from top to bottom; the arcuate block 221 and the elliptical transition block 222 are connected as a unitary, one-piece structure. The arc blocks 221 and the elliptic transition blocks 222 of the side part body 22 are arranged, and are assembled with the first cutting surface 214 and the second cutting surface 215 of the intermediate body 21 in a splicing way, so that after the baking hole brick 5 is subjected to machine press demolding molding, a first plane 52 and a second plane 53 of the baking hole brick 5 are formed, and the flat contact surfaces of the first plane 52 and the second plane 53 are utilized, so that when the baking hole brick 5 is built (the baking hole brick 5 is contacted with the refractory lining body), on one hand, the bonding contact area of the refractory lining body and the refractory clay is improved, on the other hand, the building position of the baking hole brick 5 is limited, and the bonding firmness of the baking hole brick 5 and the refractory lining body is improved.
As shown in fig. 3 or 5, the collar 3 is installed in the collar installation cavity 15, the collar 3 includes a collar body 31, the collar body 31 is cylindrical, and a core hole 32 is formed in the center of the collar body 31; the lower end surface of the collar body 31 is flush with the lower end surface of the die cylinder body 11. The first core hole 32 is formed in the center of the collar body 31, and the first core hole 32 is used to fix and limit the bottom core 43 on one hand, and to calibrate the core to have the corresponding upper and lower concentricity on the other hand.
As shown in fig. 3 or fig. 6, the core 4 passes through the first core hole 32 and is inserted into the center of the intermediate body 21, the core 4 comprises a main core 41, the main core 41 is cylindrical, a frustum core 42 is fixedly arranged at the lower part of the main core 41, a bottom core 43 is cylindrical, the bottom core 43 is fixedly arranged at the lower part of the frustum core 42, and the main core 41, the frustum core 42 and the bottom core 43 are formed into an integral structure; the diameter of the first core hole 32 is larger than that of the core hole 212 in the center of the circular body 211; the first core hole 32 and the second core hole 212 are vertically centered; the diameter of the main core 41 is equal to the diameter of the upper end face of the frustum core 42, and the diameter of the bottom of the frustum core 42 is equal to the diameter of the end face of the bottom core 43; the diameter of the main core 41 is smaller than the diameter of the bottom core 43; the bottom core 43 is installed in the first core hole 32, and the height of the lantern ring body 31 is equal to the height of the bottom core 43; the main core 41 is mounted in the core hole 212 of the circular body 211. Through the arrangement of the main core 41, on one hand, the main core 41 plays a role in guiding, and when the intermediate body 21 of the upper cover 2 is pushed by the press head, the main core 41 cooperates with the core hole 212 on the intermediate body 21 to play a role in guiding. On the other hand, with the arrangement of the main core 41, after the oven hole brick 5 is subjected to machine press demolding molding, the vent hole 56 of the oven hole brick 5 is formed, so that high-temperature oven gas is introduced into the carbonization chamber and the combustion chamber of the coke oven. On the other hand, the main core 41 is provided to make the upper cover 2 and the collar 3 concentric up and down, so that the vent holes 56 formed by press-molding the oven hole bricks 5 are vertical up and down. Through the arrangement of the frustum core 42, after the baking hole brick 5 is subjected to machine pressing demolding molding, the conical hole 57 at the bottom of the baking hole brick 5 is formed, so that the conical plugging brick can be matched with the conical hole 57 of the baking hole brick 5 better, and the firmness of the matched plugging of the conical plugging brick and the conical hole 57 of the baking hole brick 5 is improved.
The assembly and molding process of the molding die of the refractory brick for the oven baking hole of the coke oven comprises the following steps: 1. assembling a forming die of the fire brick of the oven baking hole of the coke oven: firstly, inserting a core 4 into a first core hole 32 of a lantern ring 3, then installing the lantern ring 3 and the core 4 together at the bottom position of a die cylinder body 11 of a die cylinder 1, then placing the lantern ring 3, the die cylinder 1 and the core 4 at the center position of a die frame, fixing the die cylinder 1 firmly by using a fixing bolt and a nut of the die frame, and fixing the die frame on a working platform of a press; at this time, the upper molding cavity 12, the middle molding cavity 13 and the lower molding cavity 14 of the mold cylinder 1 are distributed (the refractory brick molding raw materials are scraped off, and the entire mold cylinder is not required to be slowed down by the molding raw materials; finally, the intermediate body 21 of the upper cover 2 is placed in the center position (close to the surface of the molding raw material) of the upper molding cavity 12 of the mold cylinder body 11, and simultaneously the arc-shaped block 221 and the elliptic transition block 222 of the side part body 22 are respectively inserted into the outer side positions of the first cutting surface 214 and the second cutting surface 215 of the intermediate body 21, so that the inner side surfaces of the arc-shaped block 221 and the elliptic transition block 222 are aligned with the first cutting surface 214 and the second cutting surface 215 in a bonding mode, and the outer arc-shaped surfaces of the arc-shaped block 221 and the elliptic transition block 222 are bonded with the inner wall of the upper molding cavity 12 of the mold cylinder body 11. 2. The forming process of the fire brick for the oven baking hole of the coke oven comprises the following steps: after the above-mentioned forming die for the oven hole refractory brick is distributed and assembled, the middle body 21 and the side parts 22 on both sides of the upper cover 2 are pressed by the pressing head of the press machine, and the pressing force is applied downward, and the middle body 21 and the side parts 22 on both sides of the upper cover 2 move downward along the main core 41 of the core 4 until the oven hole brick 5 is pressed (the downward movement stroke of the upper cover 2 is determined by the pressing stroke of the pressing force and the height of the oven hole brick 5). As for demolding of the oven hole bricks 5, reverse operation of assembling the oven hole refractory brick molding die is carried out.
Various modifications to the embodiments described above will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The utility model provides a forming die of coke oven baking hole refractory brick, includes mould section of thick bamboo, upper cover and lantern ring, and mould section of thick bamboo is cylindric, its characterized in that: the die cylinder comprises a die cylinder body, wherein a cylindrical upper forming cavity is formed in the upper end of the inside of the die cylinder body, a middle forming cavity is formed in the middle position of the inside of the die cylinder body, and the middle forming cavity is in a frustum shape with a large upper end diameter and a small lower end diameter; the lower forming cavity is arranged at the lower part of the middle forming cavity, and the lantern ring mounting cavity is arranged at the lower part of the lower forming cavity; the upper cover is arranged in an upper forming cavity at the upper part of the die cylinder and comprises a middle body and side part bodies, the side part bodies are spliced at two side positions of the middle body in a butt joint manner, and the middle body and the side part bodies are spliced to form the upper cover in a butt joint manner; the lantern ring is arranged in the lantern ring installation cavity, the lantern ring comprises a lantern ring body, the lantern ring body is cylindrical, and a core hole I is formed in the center of the lantern ring body; the core passes through the first core hole and is inserted into the center of the intermediate body, the core comprises a main core, the main core is cylindrical, the frustum core is fixedly arranged at the lower part of the main core, the bottom core is cylindrical, the bottom core is fixedly arranged at the lower part of the frustum core, and the main core, the frustum core and the bottom core are of an integral structure formed into a whole.
2. The forming die for a coke oven dry hole refractory brick according to claim 1, wherein: the upper forming cavity, the middle forming cavity, the lower forming cavity and the lantern ring mounting cavity are in transition smooth connection; the upper forming cavity and the lower forming cavity are provided with drawing angles; the upper forming cavity is flush with the upper part of the die cylinder body, and the lower forming cavity is flush with the bottom of the die cylinder body.
3. The forming die for a coke oven dry hole refractory brick according to claim 1, wherein: the middle body comprises a circular body, a core hole is formed in the center of the circular body, a boss is arranged at the center of the bottom of the circular body, and the core hole is a through hole penetrating through the circular body and the boss; the first cutting surface is arranged at the left side of the circular body, the second cutting surface is arranged at the right side of the circular body, and the first cutting surface and the second cutting surface are arranged in bilateral symmetry.
4. The forming die for a coke oven dry hole refractory brick according to claim 1, wherein: the side part comprises an arc-shaped block, the outer surface of the arc-shaped block is arc-shaped, the inner side surface of the arc-shaped block is plane-shaped, the elliptical transition block is arranged at the lower part of the arc-shaped block, the upper end surface of the elliptical transition block is equal to the bottom end surface of the arc-shaped block in size, and the elliptical transition block is gradually thinned from top to bottom; the arc-shaped block and the elliptic transition block are connected into an integral structure.
5. A forming die for a coke oven dry hole refractory brick according to claim 3, wherein: the left side of the cutting surface I of the round body is spliced with a side part body in a butt joint way, and the right side of the cutting surface II is spliced with a side part body in a butt joint way; the inner side surface of the arc-shaped block of the first left side part body of the cutting surface is tightly attached to the first left side surface of the cutting surface, and the inner side surface of the arc-shaped block of the second right side part body of the cutting surface is tightly attached to the second right side surface of the cutting surface; the upper end of the arc-shaped block is flush with the upper surface of the circular body.
6. The forming die for the refractory bricks of the oven holes of the coke oven according to claim 4, wherein: the outer surface of the arc-shaped block is tightly attached to the inner wall of the upper forming cavity, and the outer surface of the elliptical transition block is tightly attached to the inner wall of the middle forming cavity.
7. The forming die for a coke oven dry hole refractory brick according to claim 1, wherein: the diameter of the first core hole is larger than that of the core hole in the center of the circular body; the first core hole corresponds to the core hole in the upper and lower centers.
8. The forming die for a coke oven dry hole refractory brick according to claim 1, wherein: the diameter of the main core is equal to the diameter of the upper end face of the frustum core, and the diameter of the bottom of the frustum core is equal to the diameter of the end face of the bottom core; the diameter of the main core is smaller than the diameter of the bottom core.
9. The forming die for a coke oven dry hole refractory brick according to claim 1, wherein: the bottom core is arranged in the first core hole, and the height of the lantern ring body is equal to that of the bottom core; the main core is installed in the core hole of the circular body.
10. The oven port block formed by the forming die for the oven port block according to claim 1, wherein: the baking furnace hole brick comprises an upper brick body, wherein the upper brick body is a circular frustum with the diameter gradually increasing from bottom to top, a first plane is arranged at the left side of the upper brick body, a second plane is arranged at the right side of the upper brick body, and the first plane and the second plane are symmetrically arranged in a left-right manner; the circle center groove is arranged at the center of the upper end of the upper brick body; the lower brick body is fixedly arranged at the lower part of the upper brick body, and the upper brick body and the lower brick body are of an integral structure formed by machine pressing; the taper hole is arranged at the center of the bottom of the lower brick body, the vent hole is arranged at the centers of the upper brick body and the lower brick body, the upper part of the vent hole is communicated with the circle center groove, and the lower part of the vent hole is communicated with the taper hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322726131.5U CN220945888U (en) | 2023-10-11 | 2023-10-11 | Forming die of coke oven baking hole refractory brick |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322726131.5U CN220945888U (en) | 2023-10-11 | 2023-10-11 | Forming die of coke oven baking hole refractory brick |
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| CN220945888U true CN220945888U (en) | 2024-05-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322726131.5U Active CN220945888U (en) | 2023-10-11 | 2023-10-11 | Forming die of coke oven baking hole refractory brick |
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| CN (1) | CN220945888U (en) |
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2023
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