Composite heat-insulating refractory brick

Abstract

The utility model discloses a composite heat insulation refractory brick which comprises a refractory brick body, a butt joint cavity is formed in the refractory brick body, a plurality of groups of filling grooves are formed in the upper portion and the lower portion of the refractory brick body, and notch grooves are formed in the front end face and the rear end face of the refractory brick body. Air guide pipes are arranged in the two sets of notch grooves and on the upper portion and the lower portion of the refractory brick body correspondingly, a heat insulation brick is arranged in the butt joint cavity, protrusions are arranged on the two sides of the heat insulation brick correspondingly, two sets of exhaust pipes fixedly penetrate through the side walls of the four sets of air guide pipes correspondingly, and multiple sets of through holes are formed in the side walls of the two sets of exhaust pipes on the same side; filter screens are installed in the multiple sets of through holes in the same side, internal threads are arranged on the inner walls of the four sets of air guide pipes, and threaded covers are arranged at openings of the four sets of air guide pipes. The composite heat-insulating refractory brick has the beneficial effects that the gas-guide tube is adopted, so that the two groups of refractory brick bodies can be conveniently separated through the gas-guide tube, and the use practicability of the composite heat-insulating refractory brick is improved.

Description

Technical Field

[0001] This utility model relates to the field of refractory brick technology, and more specifically, to a composite heat-insulating refractory brick. Background Technology

[0002] Refractory bricks are a type of building material specifically designed to withstand high-temperature environments. They are mainly made from refractory clay or other refractory raw materials and have strong resistance to alkalis, spalling, and slag. Refractory bricks can maintain their physical and chemical stability under high-temperature conditions and are not easily deformed or damaged. Therefore, they are widely used in the linings of various industrial furnaces and kilns, such as blast furnaces, steel furnaces, coke ovens, glass melting furnaces, cement kilns, steam boilers, and heating furnaces.

[0003] The prior art discloses a lightweight composite refractory brick with application number CN202320685399.6. In this utility model, the connection between two refractory bricks requires filling mortar into two adjacent notches and grooves, and waiting for the mortar to dry before the connection between the two refractory bricks is completed. This connection method easily leads to damage to the refractory bricks during later recycling, reducing the practicality of this utility model. At the same time, in order to increase the contact area between the refractory bricks and the mortar, filling grooves are often set on the surface of the refractory bricks. The filling grooves are exposed to the air, and impurities can easily enter. These impurities will affect the mortar injected into the filling grooves, thus creating a hidden danger for the connection of this utility model.

[0004] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a composite heat-insulating refractory brick, which has the advantages of being able to easily separate two sets of refractory bricks and easily remove impurities from the filling grooves on the surface of the refractory bricks, thereby solving the problems mentioned in the background technology.

[0006] To achieve the advantages of facilitating the separation of two sets of refractory bricks and the removal of impurities from the filling grooves on the surface of the refractory bricks, the specific technical solution adopted by this utility model is as follows:

[0007] A composite heat-insulating refractory brick includes a refractory brick body. The refractory brick body has a butt joint cavity inside. Multiple sets of filling grooves are provided on the upper and lower parts of the refractory brick body. Notch grooves are provided on both the front and rear ends of the refractory brick body. Air guide pipes are provided inside the two sets of notch grooves and on the upper and lower parts of the refractory brick body. A heat-insulating brick is provided inside the butt joint cavity, and protrusions are provided on both sides of the heat-insulating brick. Two sets of exhaust pipes are fixedly inserted through the sidewalls of the four sets of air guide pipes. Multiple sets of through holes are opened on the sidewalls of the two sets of exhaust pipes on the same side. Filter screens are installed inside the multiple sets of through holes on the same side. Internal threads are provided on the inner walls of the four sets of air guide pipes. Threaded caps are provided at the openings of the four sets of air guide pipes.

[0008] Furthermore, the four sets of internal threads and the four sets of thread cap threads are mutually engaged.

[0009] Furthermore, each of the four sets of threaded caps has a handle installed on its surface.

[0010] Furthermore, the front ends of the multiple sets of protrusions on the same side are provided with guide grooves, and the rear ends of the multiple sets of protrusions on the same side are provided with clearance grooves.

[0011] Furthermore, the gap length between two adjacent sets of protrusions on the same side is the same as the gap length between two adjacent sets of filling grooves on the same side.

[0012] Furthermore, the upper part of the heat-insulating brick has multiple sets of through holes.

[0013] Compared with the prior art, this utility model provides a composite heat-insulating refractory brick, which has the following beneficial effects:

[0014] (1) This utility model uses air guide pipes. When using composite heat-insulating refractory bricks, air guide pipes need to be placed in the upper and lower parts of the refractory brick body and in the two sets of notched grooves. Then, mortar is used to fix the four sets of air guide pipes. Due to the presence of mortar, another set of refractory bricks can be attached to the front, back, top, and bottom of the refractory brick body. After the mortar has dried, the connection of multiple sets of refractory bricks is completed. When multiple sets of refractory bricks need to be recycled, the four sets of internal threads and the four sets of threaded cap threads are used to cooperate with each other. The operator removes the multiple sets of threaded caps counterclockwise by hand. After the multiple sets of threaded caps are separated from the multiple sets of air guide pipes, The output end of an external air pump can be threadedly connected to a set of air guide pipes. After the external air pump is powered on, air can enter the interior of two sets of exhaust pipes on the same side through a set of air guide pipes. Then, the air can be ejected through multiple sets of through holes on the same side. As the amount of air increases, it can crack the dried mortar. When the mortar breaks, it can separate two adjacent refractory bricks without damaging them. Multiple sets of filters on the same side can prevent mortar from entering the interior of the two sets of exhaust pipes on the same side. The air guide pipes facilitate the separation of two sets of refractory bricks, improving the practicality of composite heat-insulating refractory bricks.

[0015] (2) This utility model adopts protrusions. Before actually using the composite heat-insulating refractory brick, the operator moves the heat-insulating brick by hand. Multiple sets of protrusions on the same side of the heat-insulating brick can be inserted into multiple sets of filling grooves on the same side. Then move the heat-insulating brick. After that, multiple sets of clearance grooves on the same side can push out the impurities in the multiple sets of filling grooves on the same side. After the impurities in the multiple sets of filling grooves are cleaned, the front end of the heat-insulating brick can be inserted into the inside of the docking cavity with the help of multiple sets of guide grooves on the same side. At this time, the refractory brick body and the heat-insulating brick form a composite structure, which can realize the functions of fire resistance and heat insulation. Through the protrusions, it is easy to remove the impurities in the filling grooves on the surface of the refractory brick body, which provides a guarantee for the connection and use of the composite heat-insulating refractory brick. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a structural schematic diagram of a composite heat-insulating refractory brick proposed in this utility model;

[0018] Figure 2 This is a perspective view of the heat-insulating brick proposed in this utility model;

[0019] Figure 3 This is a cross-sectional schematic diagram of the refractory brick body proposed in this utility model;

[0020] Figure 4 This is a perspective view of the air guide tube proposed in this utility model;

[0021] Figure 5 This utility model proposes Figure 1 A magnified view of A in the middle.

[0022] In the picture:

[0023] 1. Refractory brick body; 2. Insulating brick; 3. Through hole; 4. Protrusion; 5. Filling groove; 6. Notch groove; 7. Air guide pipe; 8. Exhaust pipe; 9. Filter screen; 10. Threaded cap; 11. Leaving groove; 12. Guide groove; 13. Butt joint cavity. Detailed Implementation

[0024] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0025] According to an embodiment of the present invention, a composite heat-insulating refractory brick is provided.

[0026] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figure 1-5 As shown, a composite heat-insulating refractory brick according to an embodiment of the present invention includes a refractory brick body 1. The interior of the refractory brick body 1 is provided with a butt joint cavity 13. Multiple sets of filling grooves 5 are provided on the upper and lower parts of the refractory brick body 1. Notch grooves 6 are provided on the front and rear end faces of the refractory brick body 1. Air guide pipes 7 are provided inside the two sets of notch grooves 6 and on the upper and lower parts of the refractory brick body 1. Heat-insulating bricks 2 are provided inside the butt joint cavity 13, and protrusions 4 are provided on both sides of the heat-insulating bricks 2. Two sets of exhaust pipes 8 are fixedly passed through the side walls of the four sets of air guide pipes 7. Multiple sets of through holes are opened on the side walls of the two sets of exhaust pipes 8 on the same side. Filter screens 9 are installed inside the multiple sets of through holes on the same side. Internal threads are provided on the inner walls of the four sets of air guide pipes 7. Threaded caps 10 are provided at the openings of the four sets of air guide pipes 7. The air guide pipes 7 facilitate the separation of the two sets of refractory brick bodies 1, improving the practicality of the composite heat-insulating refractory brick.

[0027] In one embodiment, the four sets of internal threads and the four sets of threaded covers 10 are mutually engaged, which facilitates the disassembly and assembly of the four sets of threaded covers 10.

[0028] In one embodiment, each of the four sets of threaded caps 10 is equipped with a handle, and the four handles facilitate the operation and use of the four sets of threaded caps 10.

[0029] In one embodiment, the front end of multiple sets of protrusions 4 on the same side is provided with a guide groove 12, and the rear end face of multiple sets of protrusions 4 on the same side is provided with a clearance groove 11. The protrusions 4 can facilitate the removal of impurities in the filling groove 5 on the surface of the refractory brick body 1, thus providing a guarantee for the connection and use of composite heat-insulating refractory bricks.

[0030] In one embodiment, the gap length between two adjacent sets of protrusions 4 on the same side is the same as the gap length between two adjacent sets of filling grooves 5 on the same side, ensuring that multiple sets of protrusions 4 on the same side can be inserted into the interior of multiple sets of filling grooves 5 on the same side.

[0031] In one embodiment, the upper part of the heat insulation brick 2 has multiple sets of through holes 3, which can reduce the weight of the heat insulation brick 2.

[0032] Working principle:

[0033] When using composite insulating refractory bricks, air guide pipes 7 need to be placed in the upper and lower parts of the refractory brick body 1 and in the two sets of notched grooves 6. Then, mortar is used to fix the four sets of air guide pipes 7. Due to the presence of mortar, another set of refractory brick bodies 1 can be attached to the front, back, top, and bottom of the refractory brick body 1. After the mortar has dried, the connection of multiple sets of refractory brick bodies 1 is completed. When multiple sets of refractory brick bodies 1 need to be recycled, the four sets of internal threads and the four sets of threaded caps 10 are used to cooperate with each other. The operator removes the multiple sets of threaded caps 10 by hand counterclockwise. After the multiple sets of threaded caps 10 are separated from the multiple sets of air guide pipes 7, the output end of the external air pump can be threaded to a set of air guide pipes 7. After the external air pump is powered on, air can enter the interior of the two sets of exhaust pipes 8 on the same side through a set of air guide pipes 7. Then, the air can be ejected through the multiple sets of through holes on the same side. As the amount of air increases, the dried mortar can be cracked. When the mortar breaks, two adjacent refractory brick bodies 1 can be separated. At this time, the refractory brick body 1. It will not be damaged. Multiple sets of filter screens 9 on the same side can prevent mortar from entering the interior of the two sets of exhaust pipes 8 on the same side. The air guide pipe 7 can facilitate the separation of the two sets of refractory bricks 1, improving the practicality of the composite heat-insulating refractory brick. At the same time, before the actual use of the composite heat-insulating refractory brick, the operator moves the heat-insulating brick 2 by hand. Multiple sets of protrusions 4 on the same side of the heat-insulating brick 2 can be inserted into multiple sets of filling grooves 5 on the same side. Then move the heat-insulating brick 2. After that, multiple sets of clearance grooves 11 on the same side can push out the impurities in the multiple sets of filling grooves 5 on the same side. After the impurities in the multiple sets of filling grooves 5 are cleaned, the front end of the heat-insulating brick 2 can be inserted into the interior of the docking cavity 13 with the help of multiple sets of guide grooves 12 on the same side. At this time, the refractory brick 1 and the heat-insulating brick 2 form a composite structure, which can realize the functions of fire resistance and heat insulation. The protrusions 4 can facilitate the removal of impurities in the filling grooves 5 on the surface of the refractory brick 1, providing a guarantee for the connection and use of the composite heat-insulating refractory brick.

[0034] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A composite heat-insulating refractory brick, characterized in that, The refractory brick body (1) is provided with a butt joint cavity (13) inside. Multiple sets of filling grooves (5) are provided on the upper and lower parts of the refractory brick body (1). Notch grooves (6) are provided on the front and rear end faces of the refractory brick body (1). Air guide pipes (7) are provided inside the two sets of notch grooves (6) and on the upper and lower parts of the refractory brick body (1). Heat insulation bricks (2) are provided inside the butt joint cavity (13). Protrusions (4) are provided on both sides of the heat insulation bricks (2). Two sets of exhaust pipes (8) are fixedly passed through the side walls of the four sets of air guide pipes (7). Multiple sets of through holes are opened on the side walls of the two sets of exhaust pipes (8) on the same side. Filter screens (9) are installed inside the multiple sets of through holes on the same side. Internal threads are provided on the inner walls of the four sets of air guide pipes (7). Threaded caps (10) are provided at the openings of the four sets of air guide pipes (7).

2. The composite heat-insulating refractory brick according to claim 1, characterized in that, The four sets of internal threads and the four sets of threaded cap (10) threads are mutually engaged.

3. The composite heat-insulating refractory brick according to claim 1, characterized in that, Each of the four sets of threaded caps (10) has a handle installed on its surface.

4. The composite heat-insulating refractory brick according to claim 1, characterized in that, The front end of the multiple sets of protrusions (4) on the same side is provided with a guide groove (12), and the rear end face of the multiple sets of protrusions (4) on the same side is provided with a clearance groove (11).

5. The composite heat-insulating refractory brick according to claim 1, characterized in that, The gap length between two adjacent sets of protrusions (4) on the same side is the same as the gap length between two adjacent sets of filling grooves (5) on the same side.

6. The composite heat-insulating refractory brick according to claim 1, characterized in that, The upper part of the heat insulation brick (2) has multiple sets of through holes (3).

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