Composite high-strength high-alumina brick
By designing a connecting shell, connecting block, and spring structure on the high-alumina brick, the problem of difficult replacement of high-alumina bricks is solved, achieving convenient replacement and stable connection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GONGYI HONGYUAN FIREPROOF MATERIALS CO LTD
- Filing Date
- 2025-06-12
- Publication Date
- 2026-05-08
AI Technical Summary
When replacing damaged high-alumina bricks, the positioning block is restricted by the fixing block, making it impossible to remove the damaged bricks for replacement.
The design incorporates a connecting shell, connecting block, spring, and slot structure. The connecting block is inserted into the slot and the spring force is used to maintain stability. During disassembly, the connecting block is moved using a tool to release the stable connection.
This achieves a stable connection between adjacent high-alumina bricks, facilitating the replacement of damaged bricks and improving replacement efficiency and wall stability.
Smart Images

Figure CN224215834U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of high-alumina brick technology, specifically a composite high-strength high-alumina brick. Background Technology
[0002] High-alumina bricks are a type of refractory material made primarily from bauxite. They are characterized by high temperature resistance, corrosion resistance, good thermal stability, and high mechanical strength. They are classified into different grades based on their alumina content and are widely used in the lining of high-temperature equipment in industries such as metallurgy, building materials, and chemicals. They are one of the key refractory materials for industrial kilns.
[0003] An investigation revealed that a Chinese utility model patent discloses a composite high-strength high-alumina brick (publication number: CN221527338U), comprising a high-alumina brick body, a positioning block fixedly connected to the front side of the high-alumina brick body, an installation shell fixedly connected to the front side of the high-alumina brick body, fixing blocks fixedly connected to both the upper and lower sides of the installation shell, a movable rod slidably connected to the middle of the left side of the installation shell, a connecting plate fixedly connected to the left end of the movable rod, a return spring sleeved on the outside of the movable rod, a moving plate fixedly connected to the right end of the movable rod, a connecting plate rotatably connected to the right side of the moving plate, a movable block rotatably connected to the right end of the connecting plate, the movable block slidably connected to the outside of the sliding rod, a locking block fixedly connected to the rear side of the movable block, and a protective component provided inside the high-alumina brick body.
[0004] In the aforementioned patent, after the positioning block is inserted into the inside of the fixing block, the locking block can be inserted into the inside of the positioning hole, thereby restricting the positioning block and realizing a stable connection between two adjacent high-alumina bricks, improving the stability of the wall. However, in practical applications, when one of the high-alumina bricks in the wall is damaged and needs to be replaced, even if the locking block has been moved out of the positioning hole, the positioning block will still be restricted by the fixing block, which means that the high-alumina brick that needs to be replaced cannot be removed from the wall.
[0005] Therefore, this utility model provides a composite high-strength high-alumina brick to solve the above problems. Utility Model Content
[0006] (a) Technical problems to be solved
[0007] This invention provides a composite high-strength high-alumina brick, which aims to solve the problems mentioned in the background art.
[0008] (II) Technical Solution
[0009] To achieve the above objectives, the present invention provides the following technical solution: a composite high-strength high-alumina brick, comprising a high-alumina brick body, an installation groove on one side of the high-alumina brick body, a connecting shell fixedly connected inside the installation groove, a connecting block slidably connected inside the connecting shell, a spring fixedly connected to one end of the connecting block, the end of the spring away from the connecting block fixedly connected to the inner wall of the installation groove, the other end of the connecting block extending to the outside of the connecting shell, and a slot provided on the side of the high-alumina brick body away from the connecting block, the slot being adapted to the connecting block.
[0010] As a preferred technical solution of this application, a first sliding groove is provided on one side of the connecting shell, the first sliding groove is connected to the inner cavity of the connecting shell, an adjusting block is fixedly connected to one side of the connecting block, the adjusting block is inserted into the inside of the first sliding groove, and an insertion hole is provided at the center of the adjusting block.
[0011] As a preferred technical solution of this application, a limiting groove is opened inside the high-alumina brick body, the limiting groove is connected to the installation groove, and a limiting strip is fixedly connected to one side of the connecting shell, the limiting strip being inserted into the limiting groove.
[0012] As a preferred technical solution of this application, the side of the adjusting block away from the connecting block is flush with the side of the connecting shell, and the side of the connecting shell is flush with the side of the high-alumina brick body.
[0013] As a preferred technical solution of this application, an auxiliary groove is provided on one side of the connecting block, a rotating shaft is fixedly connected inside the auxiliary groove, and a roller is rotatably connected to the side surface of the rotating shaft.
[0014] As a preferred technical solution of this application, a second sliding groove is provided inside the connecting shell, the second sliding groove is connected to the inner cavity of the connecting shell, and the side surface of the roller is in contact with the inner wall of the second sliding groove.
[0015] As a preferred technical solution of this application, the high-alumina brick body includes a brick core, the outer surface of the brick core is covered with a heat insulation layer, the outer surface of the heat insulation layer is coated with a waterproof layer, and the outer surface of the waterproof layer is coated with a fireproof layer.
[0016] (III) Beneficial Effects
[0017] This utility model has a simple structure and is easy to use. By setting up a connecting shell, a connecting block, a spring, and a slot, the connecting block can be inserted into the slot, which improves the stability between two adjacent high-alumina bricks. Furthermore, by moving the connecting block with a tool, the stable connection between two adjacent high-alumina bricks can be released, thus facilitating the replacement of damaged high-alumina bricks by the staff. Attached Figure Description
[0018] Figure 1 This is a structural schematic diagram of a composite high-strength high-alumina brick;
[0019] Figure 2 This is a schematic diagram of the installation of a connecting block in a composite high-strength high-alumina brick;
[0020] Figure 3 A cross-section of a connecting block in a composite high-strength high-alumina brick. Figure 1 ;
[0021] Figure 4 A cross-section of a connecting block in a composite high-strength high-alumina brick. Figure 2 ;
[0022] Figure 5 This is a cross-sectional view of the high-alumina brick body in a composite high-strength high-alumina brick.
[0023] In the picture:
[0024] 1. High-alumina brick body; 2. Mounting groove; 3. Connecting shell; 4. Connecting block; 5. Spring; 6. Slot; 7. Limiting groove; 8. Limiting strip; 9. First sliding groove; 10. Adjusting block; 11. Auxiliary groove; 12. Roller; 13. Second sliding groove; 14. Brick core; 15. Heat insulation layer; 16. Waterproof layer; 17. Fireproof layer. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] This utility model provides a composite high-strength high-alumina brick, such as Figure 1 , Figure 3 and Figure 4 As shown, the high-alumina brick body 1 is provided. An installation groove 2 is provided on one side of the high-alumina brick body 1. A connecting shell 3 is fixedly connected inside the installation groove 2. A connecting block 4 is slidably connected inside the connecting shell 3. A spring 5 is fixedly connected to one end of the connecting block 4. The end of the spring 5 away from the connecting block 4 is fixedly connected to the inner wall of the installation groove 2. The other end of the connecting block 4 extends to the outside of the connecting shell 3. A slot 6 is provided on the side of the high-alumina brick body 1 away from the connecting block 4. The slot 6 is adapted to the connecting block 4.
[0027] A first groove 9 is provided on one side of the connecting shell 3. The first groove 9 is connected to the inner cavity of the connecting shell 3. An adjusting block 10 is fixedly connected to one side of the connecting block 4. The adjusting block 10 is inserted into the inside of the first groove 9. An insertion hole is provided at the center of the adjusting block 10.
[0028] The side of the adjusting block 10 away from the connecting block 4 is flush with the side of the connecting shell 3, and the side of the connecting shell 3 is flush with the side of the high-alumina brick body 1.
[0029] When connecting two adjacent high-alumina bricks, the connecting block 4 on one high-alumina brick needs to be inserted into the slot 6 on the other high-alumina brick. The spring 5 can always push the connecting block 4 through its own force, so that the connecting block 4 can be stably maintained in its current state, thereby improving the stability between the two adjacent high-alumina bricks and thus helping to improve the stability of the wall.
[0030] When disassembling a damaged high-alumina brick, a tool can be inserted into the insertion hole on the adjusting block 10. Then, the connecting block 4 can be moved by the tool to retract into the connecting shell 3, thereby releasing the stable connection between two adjacent high-alumina bricks. Once the connecting block 4 is completely removed from the slot 6, the damaged high-alumina brick can be directly removed from the wall. When installing a new high-alumina brick, the same method applies: a tool is inserted into the insertion hole on the adjusting block 10, and the connecting block 4 can be moved by the tool to retract into the connecting shell 3, providing installation space for the new high-alumina brick. As the connecting block 4 moves, it compresses the spring 5. Once the new high-alumina brick is installed in place, the control of the connecting block 4 can be stopped. At this point, the spring 5 will release its pressure and push the connecting block 4 into the slot 6.
[0031] Furthermore, in order to improve the stability of the connecting shell 3, such as Figure 1 , Figure 2 and Figure 3 As shown, a limiting groove 7 is opened inside the high-alumina brick body 1. The limiting groove 7 is connected to the installation groove 2. A limiting strip 8 is fixedly connected to one side of the connecting shell 3. The limiting strip 8 is inserted into the inside of the limiting groove 7.
[0032] The setting of the limiting strip 8 reduces the possibility of the connecting shell 3 shifting during installation, while enhancing the firmness between the connecting shell 3 and the high-alumina brick body 1, and improving the stability of the connecting shell 3.
[0033] In order to improve the smoothness of the movement of connecting block 4, such as Figure 1 , Figure 2 and Figure 3 As shown, an auxiliary groove 11 is provided on one side of the connecting block 4. A rotating shaft is fixedly connected inside the auxiliary groove 11, and a roller 12 is rotatably connected to the side surface of the rotating shaft.
[0034] The connecting shell 3 has a second sliding groove 13 inside, which is connected to the inner cavity of the connecting shell 3, and the side surface of the roller 12 is in contact with the inner wall of the second sliding groove 13.
[0035] The roller 12 is in contact with the second slide groove 13, and there is friction between them. When the connecting block 4 moves, it can move the roller 12 together. The roller 12 can rotate on the shaft due to the influence of friction to assist the connecting block 4 in moving. The setting of the roller 12 effectively reduces the friction when the connecting block 4 moves and improves the smoothness of the movement of the connecting block 4.
[0036] Furthermore, in order to improve the performance of this high-alumina brick, such as... Figure 1 and Figure 5 As shown, the high-alumina brick body 1 includes a brick core 14, the outer surface of the brick core 14 is covered with a heat insulation layer 15, the outer surface of the heat insulation layer 15 is coated with a waterproof layer 16, and the outer surface of the waterproof layer 16 is coated with a fireproof layer 17.
[0037] The heat insulation layer 15 is made of ceramic fiber, which has a good heat insulation effect and can effectively prevent heat transfer. The waterproof layer 16 is a nano-alumina coating, which has excellent waterproof performance and can effectively reduce the possibility of moisture penetrating into the brick core 14. The fireproof layer 17 is a silicon carbide coating, which has extremely high fire resistance and can maintain the stability and integrity of the brick core 14 in high-temperature environments, effectively reducing the possibility of high temperature damaging the brick core 14.
[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A composite high-strength high-alumina brick, comprising a high-alumina brick body (1), characterized in that: The high-alumina brick body (1) has an installation groove (2) on one side. A connecting shell (3) is fixedly connected inside the installation groove (2). A connecting block (4) is slidably connected inside the connecting shell (3). A spring (5) is fixedly connected to one end of the connecting block (4). The end of the spring (5) away from the connecting block (4) is fixedly connected to the inner wall of the installation groove (2). The other end of the connecting block (4) extends to the outside of the connecting shell (3). A slot (6) is provided on the side of the high-alumina brick body (1) away from the connecting block (4). The slot (6) is adapted to the connecting block (4).
2. The composite high-strength high-alumina brick according to claim 1, characterized in that: A first groove (9) is provided on one side of the connecting shell (3), and the first groove (9) is connected to the inner cavity of the connecting shell (3). An adjusting block (10) is fixedly connected to one side of the connecting block (4), and the adjusting block (10) is inserted into the inside of the first groove (9). An insertion hole is provided at the center of the adjusting block (10).
3. The composite high-strength high-alumina brick according to claim 1, characterized in that: The high-alumina brick body (1) has a limiting groove (7) inside, which is connected to the mounting groove (2). A limiting strip (8) is fixedly connected to one side of the connecting shell (3), and the limiting strip (8) is inserted into the limiting groove (7).
4. The composite high-strength high-alumina brick according to claim 2, characterized in that: The side of the adjusting block (10) away from the connecting block (4) is flush with the side of the connecting shell (3), and the side of the connecting shell (3) is flush with the side of the high-alumina brick body (1).
5. The composite high-strength high-alumina brick according to claim 1, characterized in that: An auxiliary groove (11) is provided on one side of the connecting block (4), and a rotating shaft is fixedly connected inside the auxiliary groove (11). A roller (12) is rotatably connected to the side surface of the rotating shaft.
6. The composite high-strength high-alumina brick according to claim 5, characterized in that: The connecting shell (3) has a second sliding groove (13) inside, which is connected to the inner cavity of the connecting shell (3), and the side surface of the roller (12) is in contact with the inner wall of the second sliding groove (13).
7. The composite high-strength high-alumina brick according to claim 1, characterized in that: The high-alumina brick body (1) includes a brick core (14), the outer surface of the brick core (14) is covered with a heat insulation layer (15), the outer surface of the heat insulation layer (15) is coated with a waterproof layer (16), and the outer surface of the waterproof layer (16) is coated with a fireproof layer (17).
Citation Information
Patent Citations
Composite high-strength high-alumina brick
CN221527338U