A new type of furnace door lining composite block

Abstract

The utility model provides a novel furnace door inner lining composite block, including refractory precast, four corner positions all are provided with support column, embedded screw rod, each support column all is embeddedly arranged, shielding piece, heat insulation filling body, fill and set between shielding piece and refractory precast, refractory precast as basic structure, can bear high temperature environment in coking process, support column plays the supporting role to shielding piece and forms the accommodation space, make shielding piece and refractory precast form certain space for setting filling body, filling body can select the material of excellent heat insulation performance, effectively reduce the heat dissipation of furnace door, reduce the reduction amplitude of furnace end temperature, guarantee the uniformity of coke oven temperature, reduce the coke amount of furnace end, simultaneously, the setting of embedded screw rod has facilitated the installation and fixed of shielding piece, improved the stability of overall structure, reduced the deformation of furnace door caused by furnace door inner lining damage, reduced the maintenance frequency of furnace door, safeguarded normal production of coke oven, reduced the economic loss of coking enterprise.

Description

Technical Field

[0001] This utility model relates to the field of coke oven equipment technology, and in particular to a novel composite block for furnace door lining. Background Technology

[0002] Coke ovens are crucial pieces of equipment in the coking industry, requiring significant investment. Currently, the service life of coke ovens exceeds 30 years. However, the service life of the oven doors is less than ideal. During the coking process, temperature fluctuations during charging, coking, and door installation and removal cause thermal shock to the oven door lining. Furthermore, the lining inevitably accumulates a carbon layer over long-term use, leading to frequent corner chipping, cracking, and peeling of the inner lining. If not replaced promptly, this results in door deformation and increased heat dissipation. Rapid heat loss from the furnace head significantly lowers the temperature, affecting the uniformity of the coke oven temperature. This not only increases the amount of coke produced at the furnace head but also causes a large amount of tar to adhere to the oven door and door frame during coking, resulting in frequent door maintenance, disrupting normal coke oven production, and causing considerable economic losses to coking enterprises. Utility Model Content

[0003] The purpose of this invention is to solve the above-mentioned problems by providing a novel composite block for furnace door lining.

[0004] To achieve the above objectives, the technical solution of this utility model is: a novel composite block for furnace door lining, comprising: Fire-resistant precast components, rectangular plate structure, with support columns at all four corners of one side; Pre-embedded screws are installed on each support column, and the axial direction of the pre-embedded screws is perpendicular to the surface of the refractory prefabricated plate. A shielding element is installed at the other end of the support column; Thermal insulation filler is placed between the shielding component and the fire-resistant prefabricated component.

[0005] Furthermore, the shielding component includes a plate-shaped body and side baffles disposed on the four sides of the plate-shaped body, and the plate-shaped body is provided with through holes corresponding to the pre-embedded screws.

[0006] Furthermore, the support column is integrally formed with the refractory prefabricated component.

[0007] Furthermore, the gap between the edge of the side baffle and the refractory prefabricated component and the support column is filled with asbestos.

[0008] Furthermore, elastic locking arms are provided at the ends of the two side baffles on opposite sides, and the refractory precast component is provided with a locking groove corresponding to the elastic locking arm, and the elastic locking arm can engage with the locking groove.

[0009] Furthermore, a positioning post is provided in the middle area of ​​the fire-resistant precast component, and the heat-insulating filler is provided with clearance holes corresponding to the positioning post.

[0010] Furthermore, the end of the positioning boss is provided with a blind hole, and the plate-shaped body of the shielding member is provided with a countersunk hole corresponding to the blind hole.

[0011] Furthermore, the height of the positioning post is not greater than the height of the support post.

[0012] Compared with existing technologies, the novel composite block for furnace door lining disclosed in this utility model has the following advantages: The composite block structure uses refractory prefabricated components as the basic structure, which can withstand the high-temperature environment during the coking process. Support columns support the shielding components and form a accommodating space, creating a certain space between the shielding components and the refractory prefabricated components for the installation of a filler. The filler can be made of a material with excellent heat insulation properties, effectively reducing heat dissipation from the furnace door, decreasing the temperature drop at the furnace head, ensuring the uniformity of coke oven temperature, and reducing the amount of coke produced at the furnace head. Simultaneously, the pre-embedded screws facilitate the installation and fixing of the shielding components, improve the overall structural stability, reduce furnace door deformation caused by damage to the furnace door lining, reduce the frequency of furnace door maintenance, ensure normal coke oven production, and reduce economic losses for coking enterprises. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of a novel composite block for furnace door lining according to this utility model.

[0014] Figure 2 This is a side view of a novel composite lining block for furnace doors according to this utility model.

[0015] Figure 3 for Figure 2 The diagram shows a cross-sectional view of the novel composite lining block for furnace doors at point AA. Figure 1 .

[0016] Figure 4 for Figure 3 The diagram shown is a partially enlarged internal structure diagram of a novel furnace door lining composite block of this utility model at point B.

[0017] Figure 5 This is an exploded structural diagram of a novel composite block for furnace door lining according to the present invention.

[0018] Figure 6 This is a schematic diagram of the shielding component in a novel composite lining block for furnace doors according to this utility model.

[0019] Figure 7 This is a schematic diagram of the refractory prefabricated component in a novel composite block for furnace door lining according to this utility model.

[0020] In the diagram: 1. Refractory precast component; 10. Slot; 101. Snap-fit ​​surface; 11. Embedded screw; 12. Support column; 13. Positioning column; 130. Blind hole; 2. Blocking component; 20. Countersunk hole; 21. Side baffle; 22. Elastic locking arm; 23. Positioning boss; 24. Through hole; 25. Asbestos filler; 3. Thermal insulation filler; 31. Clearance hole. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0022] Please refer to Figure 1-7 The technical solution of this utility model is: a novel composite block for furnace door lining, comprising: Refractory precast component 1, rectangular plate structure, with support columns 12 at the four corners of one side; Pre-embedded screws 11 are pre-embedded on each support column 12, and the axial direction of the pre-embedded screws 11 is perpendicular to the surface of the refractory prefabricated component 1. The shielding component 2 is located at the other end of the support column 12; The heat insulation filler 3 is filled between the shielding component 2 and the fire-resistant prefabricated component 1.

[0023] Specifically, as a specific implementation method, the composite block provided in this application includes: a refractory preform 1, which is preformed into a blank using mullite-cordierite composite refractory material, and then obtained through firing and glazing. The refractory preform 1 has a rectangular plate structure, with support columns 12 set at the four corners of one side. By setting the support columns 12, a space can be formed between the support columns 12, so that a heat insulation filler 3 can be arranged in the space. The heat insulation filler 3 can be made of a composite material of nano-insulation material and ceramic fiber. It is made by mixing raw materials such as fumed silica, fumed alumina, nano titanium dioxide, ultrafine silicon carbide, and alumina fiber in a certain proportion (e.g., fumed silica accounts for 15% to 20%, fumed alumina accounts for 40% to 50%), then adding a certain amount of ceramic fiber, adding a pore-forming agent and a high-temperature stabilizer, and stirring thoroughly to form the main raw material. Then the raw material is filled into a mold and formed, and dried after forming to obtain the heat insulation filler 3. The heat insulation filler 3 has a heat insulation effect, and by setting... The shielding component 2 shields and limits the heat insulation filler 3, thus creating a composite block with high temperature resistance and heat insulation effect. Pre-embedded screws 11 are installed at the four corners of the support column 12. During use, the pre-embedded screws 11 are used to fix the component to the furnace door. One side of the refractory prefabricated component 1 faces the interior of the furnace body. The composite block provided in this application adopts this structure, where the refractory prefabricated component 1 serves as the basic structure, capable of withstanding the high-temperature environment during the coking process. The support column 12 supports the shielding component 2 and forms a receiving space, creating a certain space between the shielding component 2 and the refractory prefabricated component 1 for the installation of the filler. The filler can be made of a material with excellent heat insulation properties, effectively reducing heat dissipation from the furnace door, reducing the temperature drop at the furnace head, ensuring the uniformity of the coke oven temperature, and reducing the amount of coke produced at the furnace head. Simultaneously, the pre-embedded screws 11 facilitate the installation and fixing of the shielding component 2, improve the stability of the overall structure, reduce furnace door deformation caused by damage to the furnace door lining, reduce the frequency of furnace door maintenance, ensure normal coke oven production, and reduce economic losses for coking enterprises.

[0024] Specifically, the shielding component 2 can be made of heat-resistant steel, and the embedded screw 11 can also be made of heat-resistant steel. The heat-resistant steel can be high-nickel alloy steel, chromium-silicon alloy steel, or tungsten-molybdenum alloy steel.

[0025] Furthermore, as a specific implementation method, refer to Figure 1 - Figure 6 The shielding component 2 includes a plate-shaped body and side baffles 21 disposed on the four sides of the plate-shaped body. The plate-shaped body is provided with through holes 24 corresponding to the pre-embedded screws 11. Specifically, the plate-shaped body is connected and fixed to the support column 12 through the through holes 24 and the pre-embedded screws 11, which is convenient to install and reliable to connect. The side baffles 21 on the four sides can limit and protect the filler, ensuring its integrity, thereby ensuring the stability of its heat insulation effect, and further enhancing the structural reliability and performance of the composite block.

[0026] Furthermore, the support column 12 is integrally formed with the refractory prefabricated component 1. As a preferred embodiment, the integral structure makes the connection between the support column 12 and the refractory prefabricated component 1 more secure, avoiding loosening or separation due to thermal shock caused by a loose connection, improving the overall structural strength and thermal shock resistance, extending the service life of the furnace door lining, reducing lining failures caused by damage to the support column 12, and the integrally formed support column 12 is easier to manufacture and can withstand high temperatures. The pre-embedded screw 11 is integrally pre-embedded and formed on the support column 12.

[0027] Furthermore, an asbestos filler 25 is provided in the gap between the edge of the side baffle 21 and the refractory prefabricated component 1 and the support column 12. Specifically, the asbestos filler 25 is a strip of asbestos. The asbestos filler 25 has good high temperature resistance and heat insulation properties, which can fill the gap between the edge of the side baffle 21 and the refractory prefabricated component 1 and the support column 12, prevent heat loss from the gap, and further improve the heat insulation effect of the composite block. At the same time, the asbestos filler 25 can also play a buffering role, reducing the mutual compression and wear between the components caused by temperature changes, and enhancing the stability of the structure.

[0028] Furthermore, elastic locking arms 22 are provided at the ends of the two side baffles 21 on opposite sides, and the refractory precast component 1 is provided with a locking groove 10 corresponding to the elastic locking arm 22, so that the elastic locking arm 22 can engage with the locking groove 10. Specifically, refer to... Figure 4 , Figure 5 A snap-fit ​​groove is provided on the side wall of the refractory prefabricated component 1, and a snap-fit ​​surface 101 is provided in the snap-fit ​​groove. The end of the elastic snap-fit ​​arm 22 can snap with the snap-fit ​​surface 101. With the above arrangement, when the composite block is initially installed, it can be installed with the refractory prefabricated component 1 after snapping with the snap-fit ​​arm and the snap-fit ​​groove 10, and then it is convenient to install the composite block as a whole with the furnace door.

[0029] Furthermore, as a preferred embodiment, a positioning boss 23 corresponding to the positioning post 13 is provided on the plate-shaped body of the shielding member 2. The positioning boss 23 can effectively support the positioning post 13, and the positioning boss 23 can also be inserted and positioned with the clearance hole 31.

[0030] Further, specifically, see reference Figure 3 , Figure 5 , Figure 7The refractory precast component 1 has a positioning post 13 in its middle area, and the heat-insulating filler 3 is equipped with a clearance hole 31 corresponding to the positioning post 13. Specifically, the positioning post 13 is also integrally formed with the refractory precast component 1. The positioning post 13 can position the filler. When installing the filler, the cooperation between the clearance hole 31 and the positioning post 13 ensures that the filler can be accurately and quickly installed into the preset position, avoiding the filler installation deviation from affecting the heat insulation effect. At the same time, the positioning post 13 can also enhance the structural strength of the middle area of ​​the refractory precast component 1 and reduce the damage of this area under high temperature and external force.

[0031] Furthermore, a blind hole 130 is provided at the end of the positioning post 13, and a countersunk hole 20 is provided on the plate-shaped body of the shielding member 2 corresponding to the blind hole 130. Specifically, the blind hole 130 and the countersunk hole 20 are provided so that a nut can be pre-embedded in the blind hole when needed, and a bolt can be passed through the countersunk hole and connected to the nut, further connecting the shielding member 2 and the positioning post 13, enhancing the connection strength between the shielding member 2 and the refractory prefabricated component 1. Especially when the composite block is subjected to large external forces or drastic temperature changes, it can effectively prevent relative displacement between the shielding member 2 and the refractory prefabricated component 1, ensuring the stability and reliability of the overall structure. The design of the countersunk hole 20 also prevents the connecting part from protruding from the surface of the plate-shaped body, without affecting the installation and use of other components.

[0032] Furthermore, the height of the positioning post 13 is not greater than the height of the support post 12. Specifically, the height of the support post 12 can be less than or equal to the height of the positioning post 13. This arrangement ensures that the filler can fully contact the shielding member 2 after installation, preventing gaps between the filler and the shielding member 2 due to excessive height of the positioning boss 23. This ensures the filler can fully exert its heat insulation function and also guarantees that the shielding member 2 can be stably installed on the support post 12, resulting in uniform force distribution among components and reducing localized wear or damage caused by unreasonable structure. It should be noted that when the positioning boss 23 is provided, the sum of the height of the positioning boss 23 and the height of the positioning post 13 is equal to the height of the support post 12.

[0033] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A novel composite module for furnace door lining, characterized in that, include: Fire-resistant precast component (1) has a rectangular plate structure with support columns (12) at the four corners of one side. Pre-embedded screws (11) are pre-embedded on each support column (12), and the axial direction of the pre-embedded screws (11) is perpendicular to the plate surface of the refractory prefabricated component (1); A shielding element (2) is provided at the other end of the support column (12); The heat insulation filler (3) is filled between the shielding member (2) and the fire-resistant prefabricated member (1).

2. The novel composite module for furnace door lining according to claim 1, characterized in that, The shielding component (2) includes a plate-shaped body and side baffles (21) disposed on the four sides of the plate-shaped body. The plate-shaped body is provided with through holes (24) corresponding to the pre-embedded screws (11).

3. The novel composite module for furnace door lining according to claim 2, characterized in that, The support column (12) is integrally set with the refractory prefabricated component (1).

4. The novel composite module for furnace door lining according to claim 3, characterized in that, The gap between the edge of the side baffle (21) and the fire-resistant precast component (1) and the support column (12) is filled with asbestos filler (25).

5. A novel composite module for furnace door lining according to claim 4, characterized in that, Two side baffles (21) on opposite sides are provided with elastic locking arms (22) at their ends. The fire-resistant precast component (1) is provided with a slot (10) corresponding to the elastic locking arm (22). The elastic locking arm (22) can engage with the slot (10).

6. A novel composite module for furnace door lining according to any one of claims 1-5, characterized in that, The fire-resistant precast component (1) has a positioning post (13) in the middle area, and the heat insulation filler (3) is provided with a clearance hole (31) corresponding to the positioning post (13).

7. A novel composite module for furnace door lining according to claim 6, characterized in that, The end of the positioning post (13) is provided with a blind hole (130), and the plate-shaped body of the shielding member (2) is provided with a countersunk hole (20) corresponding to the blind hole (130).

8. A novel composite module for furnace door lining according to claim 6, characterized in that, The height of the positioning column (13) is not greater than the height of the support column (12).

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