Refractory brick with detachable inner core
By designing refractory bricks with detachable inner cores, the problems of poor connection stability and inadequate heat insulation of existing refractory bricks have been solved, resulting in a more stable refractory brick structure with better heat insulation.
Patent Information
- Application Number
- CN202520503401.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-21
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-03-21
AI Technical Summary
Existing refractory bricks have poor stability when joined, especially when joined in a ring, and their heat insulation effect is also poor.
Design a refractory brick with a detachable inner core, including an outer brick shell and an inner core plate. The inner core plate is composed of gypsum board, and arc-shaped grooves and slots are provided in the outer brick shell to facilitate the installation of the inner core plate. The inner core plate is provided with heat insulation holes, and the support core is composed of a central column and an outer side plate to increase stability and heat insulation effect.
It improves the connection stability and heat insulation performance of refractory bricks, and extends their service life.
Smart Images

Figure CN223896580U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of refractory brick technology, specifically a refractory brick with a detachable inner core. Background Technology
[0002] Refractory bricks, also known as fire bricks, are refractory materials made by firing refractory clay or other refractory raw materials. They are currently mainly used in various sectors of the national economy, such as steel, non-ferrous metals, glass, cement, ceramics, and petrochemicals. They are essential basic materials for ensuring the production, operation, and technological development of these industries, and play an irreplaceable and important role in the development of high-temperature industrial production.
[0003] Regarding the aforementioned technologies, the inventors believe that existing refractory bricks, in practical use, suffer from poor stability when connected with cement, especially when ring connections are required, due to the fact that most refractory bricks are regular cuboids. This results in poor inter-brick connectivity and consequently, low overall stability. Furthermore, existing refractory bricks are mostly solid structures, leading to poor thermal insulation. Utility Model Content
[0004] This application provides a refractory brick with a removable inner core to solve the problems mentioned in the background art.
[0005] This utility model is implemented as follows:
[0006] A refractory brick with a detachable inner core includes an outer brick shell, the outer brick shell including an arc-shaped shell and a mating shell, the mating shell being disposed at one end of the arc-shaped shell and integrally formed with the arc-shaped shell, an arc-shaped inner core plate being disposed in the arc-shaped shell, the arc-shaped inner core plate being detachably and fixedly connected with the arc-shaped shell, and a support core being disposed in the mating shell, the support core being integrally formed with the mating shell.
[0007] Furthermore, the arc-shaped shell has an installation groove in the middle for mounting the arc-shaped inner core plate, and the end of the arc-shaped shell away from the mating shell has an arc-shaped groove corresponding to the mating shell.
[0008] Furthermore, the arc-shaped inner core panel includes a first gypsum board and a second gypsum board, the second gypsum board being disposed on the inner side of the first gypsum board, and the second gypsum board and the first gypsum board being fixedly connected.
[0009] Furthermore, a number of heat insulation holes are evenly provided on the first gypsum board and the second gypsum board.
[0010] Furthermore, the support core includes a central column and an outer side plate, the outer side plate being evenly disposed on the outer side surface of the central column, and the outer side plate being integrally formed with the central column.
[0011] Furthermore, the inner surface of the arc-shaped shell is provided with several anti-wear strips, which are integrally formed with the arc-shaped shell.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model facilitates the installation of the arc-shaped inner core plate by opening an arc-shaped groove in the middle of the outer brick shell, and facilitates the increase of the overall heat insulation of the refractory brick through the heat insulation effect of the first gypsum board and the second gypsum board. At the same time, the interplay between the arc-shaped groove and the cylindrical mating shell makes the splicing between refractory bricks more stable, and has the advantages of convenient connection and good heat insulation performance. Attached Figure Description
[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.
[0014] Figure 1 This is a perspective view of the overall structure in an embodiment of this utility model;
[0015] Figure 2 This is a perspective view of the outer brick shell in an embodiment of this utility model;
[0016] Figure 3 yes Figure 2 Top view of the device shown;
[0017] Figure 4 This is a perspective view of the arc-shaped inner core plate in an embodiment of this utility model;
[0018] Figure 5 yes Figure 4 Top view of the device shown.
[0019] In the diagram: 1. Outer brick shell; 11. Arc-shaped shell; 111. Mounting groove; 112. Arc-shaped groove; 113. Anti-wear strip; 12. Mating shell; 2. Arc-shaped inner core board; 21. First gypsum board; 211. Heat insulation hole; 22. Second gypsum board; 3. Support core; 31. Central column; 32. Outer side panel. Detailed Implementation
[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to represent selected embodiments of this utility model.
[0021] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, a refractory brick with a detachable inner core includes an outer brick shell 1, which comprises an arc-shaped shell 11 and a mating shell 12. The mating shell 12 is disposed at one end of the arc-shaped shell 11 and is integrally formed with the arc-shaped shell 11. An arc-shaped inner core plate 2 is disposed within the arc-shaped shell 11 and is detachably and fixedly connected to the arc-shaped shell 11. A support core 3 is also disposed within the mating shell 12 and is integrally formed with the mating shell 12. An installation groove 111 for installing the arc-shaped inner core plate 2 is provided in the middle of the arc-shaped shell 11, and an arc-shaped groove 112 corresponding to the mating shell 12 is provided at the end of the arc-shaped shell 11 away from the mating shell 12. The mating shell 12 is cylindrical to mate with the arc groove 112 on the arc shell 11. An installation groove 111 is provided in the middle of the arc shell 11 to facilitate the installation of the arc-shaped inner core plate 2. Simultaneously, the arc groove 112 on the outer surface of the arc shell 11 facilitates better splicing between the outer brick shells 1. Several anti-wear strips 113 are provided on the inner surface of the arc shell 11, integrally formed with the arc shell 11. The anti-wear strips 113 reduce wear on the inner surface of the arc shell 11 during use, thereby increasing the overall service life of the refractory bricks.
[0022] Reference Figure 4 and Figure 5As shown, the arc-shaped inner core plate 2 includes a first gypsum board 21 and a second gypsum board 22. The second gypsum board 22 is disposed on the inner side of the first gypsum board 21, and the second gypsum board 22 and the first gypsum board 21 are fixedly connected. A plurality of heat insulation holes 211 are evenly arranged on the first gypsum board 21 and the second gypsum board 22. The structural design of the arc-shaped inner core plate 2 ensures that the first gypsum board 21 and the second gypsum board 22 form a corresponding heat insulation structure, which facilitates installation in the outer brick shell 1 and increases the overall heat insulation effect of the refractory brick. Furthermore, the heat insulation holes 211 further enhance the overall heat insulation effect of the refractory brick.
[0023] Reference Figure 3 As shown, the support core 3 includes a central column 31 and outer side plates 32. The outer side plates 32 are evenly distributed on the outer side surface of the central column 31, and the outer side plates 32 are integrally formed with the central column 31. By designing the structure of the support core 3, the central column 31 can be easily supported and installed in the mating shell 12 through the outer side plates 32. This not only increases the strength of the mating shell 12, but also enhances the overall heat insulation effect of the refractory brick through the gap between the mating shell 12 and the central column 31.
[0024] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A refractory brick with a detachable inner core, comprising an outer brick shell (1), characterized in that: The outer shell (1) includes an arc-shaped shell (11) and a mating shell (12). The mating shell (12) is located at one end of the arc-shaped shell (11) and is integrally formed with the arc-shaped shell (11). An arc-shaped inner core plate (2) is provided in the arc-shaped shell (11). The arc-shaped inner core plate (2) is detachably and fixedly connected with the arc-shaped shell (11). A support core (3) is also provided in the mating shell (12). The support core (3) is integrally formed with the mating shell (12).
2. A refractory brick with a detachable inner core according to claim 1, characterized in that, The arc-shaped shell (11) has an installation groove (111) in the middle for installing the arc-shaped inner core plate (2), and the arc-shaped shell (11) is provided with an arc-shaped groove (112) corresponding to the mating shell (12) at the end away from the mating shell (12).
3. A refractory brick with a detachable inner core according to claim 2, characterized in that, The arc-shaped inner core board (2) includes a first gypsum board (21) and a second gypsum board (22). The second gypsum board (22) is disposed on the inner side of the first gypsum board (21), and the second gypsum board (22) and the first gypsum board (21) are fixedly connected.
4. A refractory brick with a detachable inner core according to claim 3, characterized in that, A plurality of heat insulation holes (211) are evenly provided on the first gypsum board (21) and the second gypsum board (22).
5. A refractory brick with a detachable inner core according to claim 4, characterized in that, The support core (3) includes a central column (31) and an outer plate (32). The outer plate (32) is evenly arranged on the outer surface of the central column (31), and the outer plate (32) and the central column (31) are integrally formed.
6. A refractory brick with a detachable inner core according to claim 5, characterized in that, The inner side of the arc-shaped shell (11) is provided with a plurality of anti-wear strips (113), and the anti-wear strips (113) are integrally formed with the arc-shaped shell (11).