Coke oven combustion chamber vertical flue module based on pouring process and construction method

Abstract

The invention discloses a coke oven combustion chamber vertical flue module based on a pouring process and a construction method, the module comprises a first assembly module which comprises a first module main body (1), a partition wall module (2) and a separation layer (5), and a second assembly module which comprises a second module main body (16), a partition wall module (2), a separation layer (5) and an adjustable template for pouring the assembly modules, the adjustable template comprises a positive and negative thread supporting device (6), a wooden wedge (7), a U-shaped clamp (8), an outer die (9), a hole channel core die (10), a first arc groove die (11), a second arc groove die (12), a stepped caulking template (13), an inner die (14) and a bottom die (15), the adjustable template is made of a high-strength metal material, and the adjustable template with enough rigidity and stability is accurately erected according to the actual size of a combustion chamber. According to the module and the construction method, the repairing efficiency, stability and safety of the coke oven combustion chamber are remarkably improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of furnace body masonry engineering, and more specifically, relates to a coke oven combustion chamber vertical fire channel module based on a casting process and a construction method. Background Art

[0002] During long-term coke oven operation, the bricks in the combustion chamber can become damaged by factors such as high temperatures and thermal stress. Damaged bricks must be removed and replaced one by one. Furthermore, during hot repairs, large temperature differences can damage other bricks due to thermal expansion and contraction. Therefore, the brick structure and construction method significantly impact the efficiency of the repair project. Furthermore, the brick masonry process is cumbersome and prone to breakage due to thermal stress in high-temperature environments, compromising the overall stability of the repaired bricks.

[0003] In the actual repair process, traditional construction and maintenance techniques require manual laying of refractory bricks, which has a long construction period. During the initial laying and later maintenance, operators need to be exposed to high temperature environments for a long time. This not only has high maintenance costs, but also has poor construction efficiency and high safety hazards for operators. For example, patent document CN202410142966.2 discloses a coke oven combustion chamber wall with high thermal efficiency. The inner surface of the heat transfer wall in the coke oven combustion chamber wall is provided with grooves. The grooves are arranged at equal intervals on the same layer of bricks, and the grooves are arranged in an offset manner on the upper and lower layers of bricks. The grooves are spaced apart in the horizontal direction and discontinuously distributed in the vertical direction. When the gas in the combustion chamber flows through the rough surface of the furnace wall, turbulence can be generated, thereby strengthening the heat transfer process, improving the heat transfer efficiency, and quickly converting the coal in the carbonization chamber into coke, saving energy.

[0004] However, the technical solution disclosed in patent document CN202410142966.2 still has the following technical problems: (1) Traditional brick replacement requires local cooling (e.g., the temperature needs to be reduced to 500°C for patching), and the thermal expansion coefficients of new and old bricks are very different. During the heating process, the concentration of thermal stress can easily cause cracking or peeling of adjacent bricks. For example, silica bricks have poor thermal stability below 900°C, and the crystal transformation is accompanied by a sudden change in volume, further exacerbating the structural damage of the masonry. (2) Although existing bricks (such as heat transfer walls with grooves) enhance turbulent heat transfer through surface roughening, the groove design is discontinuously distributed in the horizontal and vertical directions, resulting in uneven stress distribution within the brick body. Under high temperature, the edge of the groove is easy to become the source of cracks, and the bricks need to be precisely aligned during construction. Small dimensional deviations during construction will amplify thermal stress and accelerate the fracture of the bricks. (3) The repair process relies on manual masonry (for example, workers need to enter the carbonization chamber to operate the excavation and patching). The operation time in a high temperature environment (>60℃) can be as long as several days, and workers are prone to heat exhaustion. At the same time, semi-mechanized technologies such as spraying still require close operation. The rebound rate of semi-dry spraying is 10-20%, and dust and high-temperature gas threaten the safety of operation. Summary of the Invention

[0005] In response to the above-mentioned defects or improvement needs of the prior art, the present invention provides a coke oven combustion chamber vertical fire channel module and construction method based on a casting process. By assembling the module body with a partition layer, cracks caused by thermal expansion and contraction are avoided, improving the module's durability and stability. At the same time, by intermeshing the module body and the partition wall module of the assembly module, they jointly achieve the function of replacing the traditional brickwork structure to improve actual work efficiency. By using the retractable structure of the adjustable template inner mold and the use of high-strength metal materials to make the template, the template's adjustable precision, rigidity, and stability requirements are achieved, significantly improving the efficiency, stability, and safety of coke oven combustion chamber repairs.

[0006] In order to achieve the above-mentioned object, according to a first aspect of the present invention, a coke oven combustion chamber vertical flue module based on a casting process is provided, comprising:

[0007] A first assembly module includes a first module body, partition wall modules disposed on both sides of the first module body, and a separation layer disposed within the first module body. The separation layer prevents cracks caused by thermal expansion and contraction, thereby improving module durability and stability.

[0008] An adjustable template comprises a bottom template, inner templates respectively arranged on the bottom template, stepped caulking templates respectively arranged on the outside of the inner templates, channel core templates respectively arranged on the bottom template, outer templates respectively arranged on the outside of the stepped caulking templates, and positive and negative wire supports respectively arranged between the inner templates;

[0009] The second assembly module includes a second module body. Through the mutual engagement of the module body and the partition wall module, the adjustable accuracy of the template and the template rigidity and stability requirements are achieved.

[0010] Furthermore, the first module body is formed by casting refractory material.

[0011] Furthermore, steps that increase in size layer by layer are provided on both sides of the partition wall module, and rounded corners are provided at the corners of the steps.

[0012] Furthermore, the separation layer includes grooves and holes for adjusting stress distribution.

[0013] Furthermore, the adjustable template includes wooden wedges and U-shaped clamps for rapid assembly, disassembly and fixation.

[0014] Furthermore, the outer mold adopts a longitudinal segmented design.

[0015] Furthermore, the inner mold adopts a retractable structure design.

[0016] Furthermore, the adjustable template also includes a first arc groove mold and a second arc groove mold, and the bite and docking of adjacent bricks are achieved through the arc-shaped or semicircular curved surfaces of the first arc groove mold and the second arc groove mold.

[0017] Furthermore, the second module body is formed by casting refractory material.

[0018] According to a second aspect of the present invention, a method for constructing a vertical flue of a coke oven combustion chamber based on a casting process is provided, which is implemented by applying a vertical flue module of a coke oven combustion chamber based on a casting process, and comprises:

[0019] S100: The wall width of the coke oven combustion chamber gradually decreases from the coke pushing side. The interior of the wall is divided into several vertical fire channels by multiple partition walls. The width of the partition walls usually decreases by a few millimeters every three partition walls. The erection of the adjustable formwork needs to be carried out according to the actual size of the combustion chamber. The entire adjustable formwork is made of high-strength metal to ensure that the adjustable formwork has sufficient rigidity and stability to ensure the molding quality of the module during the pouring process. In the adjustable formwork, its inner mold is telescopically adjustable and the outer mold is movable to accommodate the pouring of modules of different sizes.

[0020] S200: After the refractory material is prepared in proportion, it is poured into the template to form a pouring layer equivalent to the height of traditional brickwork. During the pouring process, it should start from one end of the module and gradually advance to the other end to ensure that the thickness of the pouring layer is uniform. The selection of refractory materials is based on the requirements of the pouring process to ensure that it has good heat resistance and stability in high temperature environments;

[0021] S300: The separation layer is made of heat-resistant material and has downward-extending grooves and evenly distributed holes on its surface. After the casting layer reaches the initial setting state, the separation layer is laid on the casting layer surface. When laying the separation layer, it must be ensured that it is tightly combined with the casting layer without gaps. The laying of the separation layer should start from one end of the module and gradually advance to the other end to ensure a smooth and even laying.

[0022] S400: After the first casting layer reaches the initial setting state, the separation layer is laid, and then the second outer mold is set. The above casting, vibration and initial setting processes are repeated until a predetermined number of layers of modules are formed. When the upper layer is cast, the refractory material will flow through the holes on the separation layer into the holes on the upper surface of the module body of the next layer, thereby achieving effective bonding between the upper and lower layers. This method can ensure that each casting layer bears the weight of the upper layer in a relatively stable state, reducing the pressure and vibration impact on the lower separation layer;

[0023] S500: To ensure good structural strength and thermal stability, the refractory modules after casting need to undergo conventional heat treatment, including preheating, curing, and cooling processes, to remove residual moisture and alleviate thermal stress. For modules used for hot repair of coke ovens, it is recommended to store them in a dry, water-free, and oil-free environment. Based on the on-site construction arrangements, they should be preheated to medium temperature before installation to reduce temperature shock and prevent the risk of spalling caused by thermal shock.

[0024] S600: Use large lifting equipment and lifting clamps to lift the module as a whole to the predetermined position of the combustion chamber. During the lifting process, the stability of the module should be ensured to avoid impact and vibration to the module. When lifting, special lifting tools should be used to ensure that the lifting points are evenly distributed and the module is evenly stressed.

[0025] In general, the above technical solutions conceived by the present invention can achieve the following beneficial effects compared with the prior art:

[0026] 1. The device of the present invention improves the durability and stability of the module by avoiding cracks caused by thermal expansion and contraction through the separation layer in the module body of the assembly module. At the same time, through the mutual engagement of the module body of the assembly module and the partition wall module, it jointly achieves the role of replacing the traditional brick structure to improve the actual work efficiency. Through the retractable structure of the adjustable template inner mold and the use of high-strength metal materials to make the template, the adjustable accuracy of the template and the requirements of template rigidity and stability are achieved, which significantly improves the efficiency, stability and safety of coke oven combustion chamber repair.

[0027] 2. The device of the present invention is provided with a partition layer inside the first module body and the second module body. The surface of the partition layer is designed with downwardly extending grooves and holes evenly distributed on the partition layer. The structural design of the grooves and holes can adjust the stress distribution so that the modules can be firmly combined through the partition layer during hoisting, thereby avoiding local separation and overall structural instability caused by temperature difference. The first assembly module and the second assembly module are highly modularized to ensure their consistency to replace the traditional brick structure, thereby improving the work efficiency of operators in repairing the coke oven combustion chamber.

[0028] 3. The device of the present invention, after measuring the actual size of the corresponding combustion chamber, adjusts the positive and negative wire supports on the inner mold to ensure that the inner mold can adapt to the change of the wall taper and ensure the overall stability of the template. The template is made of high-strength metal material and has sufficient rigidity and stability. The template and the module are connected by snap-on, pin or bolt connectors, so that the module can be quickly installed on the template and can be quickly disassembled after pouring is completed. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the first assembly module of the present invention;

[0030] Figure 2 This is a schematic diagram of the first module body of the present invention;

[0031] Figure 3 This is a schematic diagram of a partition wall module of the present invention;

[0032] Figure 4 Schematic diagram of the separation layer of the present invention;

[0033] Figure 5 This is a schematic diagram of the adjustable template of the present invention;

[0034] Figure 6 This is a schematic diagram of the second module body of the present invention;

[0035] Figure 7 is a schematic diagram of a second assembly module of the present invention;

[0036] Figure 8 The figure is a flow chart of the construction method of the vertical fire channel module based on the casting process.

[0037] In all the drawings, the same figure marks represent the same technical features, specifically: 1-first module body, 2-partition wall module, 3-groove, 4-hole, 5-partition layer, 6-positive and negative wire support, 7-wooden wedge, 8-U-shaped clamp, 9-outer mold, 10-channel core mold, 11-first arc groove mold, 12-second arc groove mold, 13-stepped caulking template, 14-inner mold, 15-bottom mold, 16-second module body. DETAILED DESCRIPTION

[0038] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only intended to illustrate the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

[0039] An embodiment of the present invention provides a vertical fire channel module and construction method for a coke oven combustion chamber based on a casting process. This vertical fire channel module includes: a first assembly module, an adjustable template, and a second assembly module, wherein the first assembly module and the second assembly module are respectively an assembly form of the vertical fire channel module, and the adjustable template is used to cast the corresponding module. Among them, the first assembly module includes: a first module body 1, a partition wall module 2, and a separation layer 5. A unique stepped structure is formed on both sides of the first module body 1. A partition wall module 2 can be inserted separately between the two first module bodies 1. The partition wall module 2 can engage with both sides of the first module body 1, adopting a staggered splicing method, and using traditional mud masonry technology between the splicing joints. A separation layer 5 is provided inside the first module body 1, and the separation layer 5 can adjust the stress distribution. The adjustable formwork includes a positive and negative wire support 6, a wooden wedge 7, a U-shaped fixture 8, an outer formwork 9, a channel core formwork 10, a first arc groove mold 11, a second arc groove mold 12, a stepped caulking formwork 13, an inner formwork 14, and a bottom formwork 15. The positive and negative wire support 6 is installed on the inner formwork 14 to ensure adjustment accuracy and overall stability of the formwork. The wooden wedge 7 is inserted into the gap between the U-shaped fixture 8 and the inner formwork 14 to prevent deformation of the formwork due to pouring pressure. The U-shaped fixture 8 is used to fix the outer formwork 9 and the inner formwork 14. The channel core formwork 10 is used to pass through the channel. The arc groove mold is installed in the groove on the upper surface of the stepped caulking formwork 13. The stepped caulking formwork 13 is installed between the outer formwork 9 and the inner formwork 14. The bottom formwork 15 is installed at the bottom of the formwork. Among them, the second assembly module includes: a second module body 16, a partition wall module 2, and a partition layer 5. A unique stepped structure is formed on both sides of the second module body 16. Compared with the first module body 1, the second module body 16 has an additional set of vertical fire channels, and the rest remain the same. The device of the present invention improves the durability and stability of the module by avoiding cracks caused by thermal expansion and contraction through the separation layer in the module body of the assembly module. At the same time, through the mutual engagement of the module body of the assembly module and the partition wall module, it jointly achieves the function of replacing the traditional brick structure to improve actual work efficiency. Through the retractable structure of the adjustable template inner mold and the use of high-strength metal materials to make the template, the adjustable accuracy of the template and the requirements of template rigidity and stability are achieved, which significantly improves the efficiency, stability and safety of coke oven combustion chamber repair.

[0040] In the first assembly module, as Figure 1 、 2 As shown in Figure 3, the first module body 1 is formed by pouring refractory materials. The first module body 1 is designed to have a set of complete vertical fire channels. The two sides gradually become smaller like steps, forming a unique stepped structure. The first module body 1 has a predetermined size and shape and is used to replace the traditional brick structure. Figure 4As shown, a partition layer 5 is provided inside the first module body 1, comprising grooves 3 and holes 4. The partition layer 5 is made of heat-resistant material, and its surface is designed with downwardly extending grooves 3 and evenly distributed holes 4. The structural design of the grooves 3 and holes 4 can adjust the stress distribution on the module body, so that the module body is firmly connected through the partition layer 5 during hoisting. Under the action of high temperature and thermal expansion and contraction, the cracks generated in the module body are horizontal and vertical cracks, and no oblique cracks will occur, thereby allowing local separation and avoiding overall structural instability caused by temperature differences. Insertable partition wall modules 2 are provided between adjacent first module bodies 1. The partition wall modules 2 also become larger layer by layer like steps and intermesh with the first module body 1. The intermeshing inner and outer corners are designed to be rounded to reduce corner damage during slight deformation, further enhancing the integrity and stability of the module in a high-temperature environment. The module of the present invention forms a three-dimensional thermal stress buffer structure by staggering the partition layers 5 arranged in the vertical and horizontal directions within the main body of the first module, thereby significantly reducing the risk of structural damage caused by thermal expansion and contraction. At the same time, the partition wall module 2 is inserted into the middle of the two main bodies of the first module 1, and the internal and external corners of the meshing are designed to be rounded to reduce damage to the corners of the smiling deformation. The device of the present invention is provided with a partition layer inside the main body of the first module and the main body of the second module. The surface of the partition layer is designed with grooves extending downward and holes evenly distributed on the partition layer. The structural design of the grooves and holes can adjust the stress distribution so that the modules can be firmly combined through the partition layer during hoisting, thereby avoiding local separation and overall structural instability caused by temperature difference. The first assembly module and the second assembly module are highly modularized to ensure their consistency and are used to replace the traditional brick structure, thereby improving the work efficiency of operators repairing the coke oven combustion chamber.

[0041] In an adjustable template, such as Figure 5As shown, the inner mold 14 is designed according to the cross-section of the vertical fire channel and adopts a retractable mechanism. The size of the inner mold 14 can be accurately adjusted according to the change of the wall taper. The outer membrane 9 adopts a longitudinal segmentation design according to the module height segmentation. The U-shaped clamp 8 clamps and fixes the inner mold 14 and the outer membrane 9 at the same time. The gap is fastened with a wooden wedge 7 for easy assembly and disassembly. The positive and negative wire supports 6 are installed on the inner mold 14 to ensure the adjustment accuracy and module stability. The channel core mold 10 is integrated in the module system for forming the through channel structure in the module. The first arc groove mold 11 and the second arc groove The mold 12 is installed in the groove on the upper surface of the stepped caulking template 13. The surface of the arc groove mold is an arc or semicircular curved surface. Adjacent bricks are connected by a semicircular groove bite structure. The stepped caulking template 13 is installed between the inner mold 14 and the outer mold 9. It is used to form the stepped grooves between the refractory bricks in one step during the module casting process. The stepped caulking template 13 is provided with a stepped transition surface along the height of the template to simulate the geometric characteristics of the staggered bite of the brick joints, ensuring that the module can be stably connected and airtightly matched with the surrounding refractory bricks after completion. The bottom mold 15 is connected to the bottom of the outer mold 9 and the inner mold 14. In the module of the present invention, the inner mold and the outer mold are installed on the bottom mold, the inner mold and the outer mold are connected by a U-shaped clamp, the stepped caulking template is installed between the inner mold and the outer mold, the arc groove mold is installed in the upper groove of the stepped caulking template, the channel core mold is integrated into the module system, and the positive and negative wire supports are installed on the inner mold. The module is used for the overall molding of the coke oven combustion chamber module to adapt to the changes in wall taper, the integrated prefabrication requirements of the partition wall channel structure and the brick joint mortise and tenon structure. After measuring the actual size of the corresponding combustion chamber, the device of the present invention adjusts the positive and negative wire supports on the inner mold to ensure that the inner mold can adapt to the changes in wall taper and ensure the stability of the template as a whole. The template is made of high-strength metal material and has sufficient rigidity and stability. The template and the module are connected by snap-on, pin or bolt connectors, so that the module can be quickly installed on the template and can be quickly disassembled after the pouring is completed.

[0042] In the second assembly module, as Figure 6 、 7 As shown, the second module body 16 is formed by pouring refractory material. The second module body 16 is designed to have two sets of complete vertical fire channels, with both sides gradually becoming smaller like steps, forming a unique stepped structure. The second module body 16 has a predetermined size and shape and is used to replace the traditional brick structure. Figure 4As shown, a partition layer 5 is provided within the second module body 16, comprising grooves 3 and holes 4. The partition layer 5 is made of heat-resistant material, with downwardly extending grooves 3 and evenly distributed holes 4 designed on its surface. The structural design of the grooves 3 and holes 4 can adjust the stress distribution on the module body, allowing the module body to be firmly bonded through the partition layer 5 during hoisting, while allowing for partial separation under high temperatures and thermal expansion and contraction, thus avoiding overall structural instability caused by temperature differences. Insertable partition wall modules 2 are provided between adjacent second module bodies 16. The partition wall modules 2 also gradually increase in size like steps and intermesh with the second module body 16. The intermeshing inner and outer corners are rounded to reduce corner damage during minor deformations, further enhancing the integrity and stability of the module in high-temperature environments. The module of the present invention forms a three-dimensional thermal stress buffer structure by staggering the partition layers 5 arranged in the second module body 16 in the vertical and horizontal directions, which significantly reduces the risk of structural damage caused by thermal expansion and contraction. At the same time, the two first module bodies 1 are meshed and inserted into the partition wall module, and the meshing inner and outer corners are designed to be rounded to reduce damage to the corners with slight deformation.

[0043] like Figure 8 As shown, in one embodiment of the present invention, a coke oven combustion chamber vertical flue module and a construction method based on a casting process are provided, comprising the following steps:

[0044] The wall width of the coke oven combustion chamber gradually decreases from the coke pushing side. The interior of the wall is divided into several vertical fire channels by multiple partition walls. The width of the partition walls usually decreases by a few millimeters every three partition walls. The erection of the adjustable formwork needs to be carried out according to the actual size of the combustion chamber, and the entire adjustable formwork is made of high-strength metal to ensure that the adjustable formwork has sufficient rigidity and stability to ensure the molding quality of the module during the pouring process. In the adjustable formwork, the inner mold can be telescopically adjusted and the outer mold can be movable to adapt to the pouring of modules of different sizes.

[0045] After the refractory material is mixed in proportion, it is poured into the formwork to form a pouring layer equivalent to the height of traditional brickwork. During the pouring process, it should start from one end of the module and gradually advance to the other end to ensure that the thickness of the pouring layer is uniform. The selection of refractory materials is based on the requirements of the pouring process to ensure that it has good heat resistance and stability in high temperature environments.

[0046] Vibration and initial setting of refractory materials. During the pouring process, high-frequency vibrating equipment is used to vibrate the refractory materials. When vibrating, the vibration points should be evenly distributed to ensure that the refractory materials are fully tight and no bubbles remain. After the vibration is completed, let the pouring layer stand naturally until there are no obvious flow marks on the surface of the pouring layer and there is no obvious depression when pressing the surface with a finger, which means it reaches the initial setting state.

[0047] The separation layer is made of heat-resistant material, and its surface is designed with downward-extending grooves and evenly distributed holes. After the casting layer reaches the initial setting state, the separation layer is laid on the surface of the casting layer. When laying the separation layer, it is necessary to ensure that it is tightly combined with the casting layer without gaps. The laying of the separation layer should start from one end of the module and gradually advance to the other end to ensure that it is laid flat and evenly.

[0048] After the first layer of casting reaches the initial setting state, the separator layer is laid, and then the second layer of outer formwork is set. The above casting, vibration and initial setting process is repeated until the predetermined number of layers of modules are formed. When pouring the upper layer, the refractory material will flow through the holes in the separator layer into the holes on the upper surface of the main body of the next layer of modules, effectively connecting the upper and lower layers. This method ensures that each casting layer can bear the weight of the upper layer in a relatively stable state, reducing the pressure and vibration impact on the lower separator layer.

[0049] To ensure that the modules have good structural strength and thermal stability, the refractory modules need to undergo conventional heat treatment after casting, including preheating, curing and cooling processes to remove residual moisture and relieve thermal stress. For modules used for hot repair of coke ovens, it is recommended to store them in a dry, water-free and oil-free environment and, depending on the on-site construction arrangements, preheat them to medium temperature before installation to reduce temperature shock and prevent the risk of spalling caused by thermal shock.

[0050] Use large-scale lifting equipment and clamps to hoist the module to the desired location in the combustion chamber. During the hoisting process, ensure the module is stable and avoid impact and vibration. Use dedicated lifting tools to ensure that the lifting points are evenly distributed and the module is evenly stressed.

[0051] By adopting the above-mentioned module design and construction method, the entire process of designing, manufacturing and constructing the vertical fire channel module of the entire coke oven combustion chamber can be completed, and the construction efficiency can be improved by simplifying the repair process of the vertical fire channel of the coke oven combustion chamber.

[0052] In summary, the combustion chamber vertical fire channel module and construction method significantly improve the durability and stability of the module as well as the construction efficiency through the stress dispersion structure and optimized construction process, and are suitable for various coke oven combustion chamber repair and renovation projects.

[0053] It will be easily understood by those skilled in the art that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A coke oven combustion chamber vertical flue module based on a casting process, characterized in that: include: A first assembly module comprises a first module body (1), partition wall modules (2) arranged on both sides of the first module body (1), and a separation layer (5) arranged inside the first module body (1), wherein the separation layer (5) prevents cracks caused by thermal expansion and contraction, thereby improving module durability and stability; An adjustable template comprises a bottom mold (15), inner molds (14) respectively arranged on the bottom mold (15), stepped caulking templates (13) respectively arranged on the outside of the inner molds (14), channel core molds (10) respectively arranged on the bottom mold (15), outer molds (9) arranged on the outside of the stepped caulking templates (13), and positive and negative wire supports (6) respectively arranged between the inner molds (14); The second assembly module comprises a second module body (16). Through the mutual engagement of the module body (16) and the partition wall module (2), the adjustable accuracy of the template and the template rigidity and stability requirements are achieved.

2. A coke oven combustion chamber vertical flue module based on a casting process according to claim 1, characterized in that: The first module body (1) is formed by casting refractory material.

3. A coke oven combustion chamber vertical flue module based on a casting process according to claim 2, characterized in that: Steps that increase in size layer by layer are provided on both sides of the partition wall module (2), and rounded corners are provided at the corners of the steps.

4. A coke oven combustion chamber vertical flue module based on a casting process according to claim 3, characterized in that: The separation layer (5) comprises grooves (3) and holes (4) for adjusting stress distribution.

5. A coke oven combustion chamber vertical flue module based on a casting process according to any one of claims 1 to 4, characterized in that: The adjustable template comprises wooden wedges (7) and U-shaped clamps (8) for rapid assembly, disassembly and fixation.

6. The coke oven combustion chamber vertical flue module based on the casting process according to claim 5, characterized in that: The outer mold (9) adopts a longitudinal segmented design.

7. A coke oven combustion chamber vertical flue module based on a casting process according to claim 6, characterized in that: The inner mold (14) adopts a telescopic structure design.

8. The coke oven combustion chamber vertical flue module based on the casting process according to claim 7, characterized in that: The adjustable template further comprises a first arc groove mold (11) and a second arc groove mold (12), and the snap-fitting and docking of adjacent bricks is achieved through the arc-shaped or semicircular curved surfaces of the first arc groove mold (11) and the second arc groove mold (12).

9. A coke oven combustion chamber vertical flue module based on a casting process according to any one of claims 1 to 4, characterized in that: The second module body (16) is formed by casting refractory material.

10. A method for constructing a vertical flue in a coke oven combustion chamber based on a casting process, characterized in that: The invention is realized by applying the vertical flue module of the coke oven combustion chamber based on the casting process according to any one of claims 1 to 4, comprising: S100: The wall width of the coke oven combustion chamber gradually decreases from the coke pushing side. The interior of the wall is divided into several vertical fire channels by multiple partition walls. The width of the partition walls usually decreases by a few millimeters every three partition walls. The erection of the adjustable formwork needs to be carried out according to the actual size of the combustion chamber. The entire adjustable formwork is made of high-strength metal to ensure that the adjustable formwork has sufficient rigidity and stability to ensure the molding quality of the module during the pouring process. In the adjustable formwork, its inner mold is telescopically adjustable and the outer mold is movable to accommodate the pouring of modules of different sizes. S200: After the refractory material is prepared in proportion, it is poured into the template to form a pouring layer equivalent to the height of traditional brickwork. During the pouring process, it should start from one end of the module and gradually advance to the other end to ensure that the thickness of the pouring layer is uniform. The selection of refractory materials is based on the requirements of the pouring process to ensure that it has good heat resistance and stability in high temperature environments; S300: The separation layer is made of heat-resistant material and has downward-extending grooves and evenly distributed holes on its surface. After the casting layer reaches the initial setting state, the separation layer is laid on the casting layer surface. When laying the separation layer, it must be ensured that it is tightly combined with the casting layer without gaps. The laying of the separation layer should start from one end of the module and gradually advance to the other end to ensure a smooth and even laying. S400: After the first casting layer reaches the initial setting state, the separation layer is laid, and then the second outer mold is set. The above casting, vibration and initial setting processes are repeated until a predetermined number of layers of modules are formed. When the upper layer is cast, the refractory material will flow through the holes on the separation layer into the holes on the upper surface of the module body of the next layer, thereby achieving effective bonding between the upper and lower layers. This method can ensure that each casting layer bears the weight of the upper layer in a relatively stable state, reducing the pressure and vibration impact on the lower separation layer; S500: To ensure good structural strength and thermal stability, the refractory modules after casting need to undergo conventional heat treatment, including preheating, curing, and cooling processes, to remove residual moisture and alleviate thermal stress. For modules used for hot repair of coke ovens, it is recommended to store them in a dry, water-free, and oil-free environment. Based on the on-site construction arrangements, they should be preheated to medium temperature before installation to reduce temperature shock and prevent the risk of spalling caused by thermal shock. S600: Use large lifting equipment and lifting clamps to lift the module as a whole to the predetermined position of the combustion chamber. During the lifting process, the stability of the module should be ensured to avoid impact and vibration to the module. When lifting, special lifting tools should be used to ensure that the lifting points are evenly distributed and the module is evenly stressed.

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