A splicable modular firebrick mortise and tenon structure
By using mortise and tenon structure and surface coating design, the problems of difficult splicing of refractory bricks and difficulty in replacing them after damage are solved, realizing convenient installation and efficient connection of refractory bricks, and improving the stability and service life of refractory bricks.
Patent Information
- Application Number
- CN202520865793.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-06
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-05-06
AI Technical Summary
Existing refractory bricks are difficult to assemble and difficult to replace after damage, affecting their performance.
Modular splicing is achieved using tenon and mortise structures, combined with positioning grooves and oblique tooth grooves to enhance connection stability. A ceramic heat-insulating coating and a silicon carbide anti-oxidation layer are sprayed onto the brick surface to improve high-temperature resistance and oxidation resistance.
It enables convenient splicing and stable connection of refractory bricks, reduces construction difficulty, extends service life, reduces equipment downtime for maintenance, and improves industrial production efficiency.
Smart Images
Figure CN224678981U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of refractory brick technology, and more specifically, to a modular refractory brick tenon and mortise structure that can be spliced. Background Technology
[0002] Refractory bricks are refractory materials made from refractory clay or other refractory raw materials. They can be classified into standard bricks, ordinary bricks, and special bricks according to their shape and size. They are light yellow or brownish in color and are mainly used to line smelting furnaces to withstand high-temperature environments and ensure the normal operation of the equipment.
[0003] However, current refractory bricks are usually installed by mortar bonding, which is difficult and not easy to install. Once damaged, it is difficult to replace the refractory bricks, affecting the performance. In view of this, this utility model proposes a modular mortise and tenon structure for splicing refractory bricks. Utility Model Content
[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a modular refractory brick tenon and mortise structure that can be spliced together, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a modular refractory brick tenon and mortise structure that can be spliced, comprising a refractory brick body, wherein two mortises are provided on two outer walls of the refractory brick body, and two tenons are fixedly installed on the other two outer walls of the refractory brick body, wherein the tenons are adapted to the mortise and mortise structure.
[0006] As can be seen, inserting the tenon into the mortise allows for modular splicing of two adjacent refractory brick bodies, facilitating construction, installation, and replacement.
[0007] To improve the stability after splicing, preferably, the inner wall of the mortise is provided with several arc-shaped positioning grooves, and the outer wall of the tenon is fixedly installed with several arc-shaped positioning reinforcement strips. The number of positioning reinforcement strips is the same as the number of positioning grooves, and the structures are matched. Several oblique tooth grooves are symmetrically provided on the two inclined surfaces of the mortise, and several oblique tooth blocks are obliquely and symmetrically installed on the two side walls of the tenon. The number of oblique tooth blocks and oblique tooth grooves are the same, and the structures are compatible.
[0008] To improve the high temperature resistance and oxidation resistance of refractory bricks, preferably, the surface of the refractory brick body is sprayed with a heat insulation layer, and the outer side of the heat insulation layer is coated with an anti-oxidation layer. The heat insulation layer is a ceramic heat insulation coating, and the anti-oxidation layer is a silicon carbide coating.
[0009] The technical effects and advantages of this utility model are as follows:
[0010] 1. By using tenons and mortises, and through the double reinforcement of positioning grooves, positioning reinforcing strips, and oblique tooth grooves and oblique tooth blocks, a tight and stable splicing between refractory bricks is achieved. This can effectively resist lateral external forces, thermal stress, and vertical misalignment, ensuring the overall structure is stable and reliable under complex working conditions such as high temperature and high pressure. At the same time, the modular splicing method makes construction and installation more convenient. If any refractory brick is damaged later, it can be disassembled and replaced individually without large-scale demolition, which greatly reduces construction difficulty and maintenance costs.
[0011] 2. Through the synergistic effect of the ceramic heat-insulating coating and the silicon carbide anti-oxidation coating on the surface of the refractory bricks, the ceramic heat-insulating coating effectively blocks heat radiation, inhibits heat conduction, reduces heat transfer to the refractory bricks, and reduces heat loss. The silicon carbide anti-oxidation coating forms a dense protective film, which isolates oxygen and other oxidizing media and prevents oxidation and erosion of the refractory bricks. The combination of the two significantly improves the performance of refractory bricks in high-temperature and oxidizing environments, effectively extends their service life, reduces the frequency of equipment downtime for maintenance due to refractory brick damage, and improves industrial production efficiency. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0013] Figure 2 For the present utility model Figure 1 Enlarged structural diagram at point A in the middle.
[0014] Figure 3 This is a schematic diagram of the surface structure of the tenon of this utility model.
[0015] Figure 4 This is a schematic diagram of the surface structure of the refractory brick body of this utility model.
[0016] The attached diagram is labeled as follows: 1. Refractory brick body; 2. mortise; 3. tenon; 4. positioning groove; 5. positioning reinforcement strip; 6. oblique tooth groove; 7. oblique tooth block; 8. heat insulation layer; 9. anti-oxidation layer. Detailed Implementation
[0017] 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.
[0018] As attached Figure 1-4The diagram shows a modular refractory brick tenon and mortise structure that can be spliced, including a refractory brick body 1. Two mortises 2 are opened on both outer walls of the refractory brick body 1, and two tenons 3 are fixedly installed on the other two outer walls of the refractory brick body 1. The tenons 3 are adapted to the mortises 2.
[0019] The inner wall of the mortise 2 is provided with several arc-shaped positioning grooves 4. The outer wall of the tenon 3 is fixedly installed with several arc-shaped positioning reinforcing strips 5. The number of positioning reinforcing strips 5 is the same as the number of positioning grooves 4, and the structure matches. Several oblique tooth grooves 6 are symmetrically provided on the two inclined surfaces of the mortise 2. Several oblique tooth blocks 7 are obliquely and symmetrically installed on the two side walls of the tenon 3. The number of oblique tooth blocks 7 and oblique tooth grooves 6 are the same, and the structure matches.
[0020] Specifically, in this structure, adjacent refractory brick bodies 1 are spliced together by the cooperation of tenons 3 and mortises 2. The tenons 3 are inserted into the mortises 2 to form a basic connection structure, so that the refractory brick bodies 1 are tightly connected to form an integral structure, which facilitates construction and installation, and also makes it easy to replace the damaged refractory brick bodies 1 later.
[0021] The number of positioning grooves 4 on the inner wall of the mortise 2 is the same as the number of positioning reinforcing strips 5 on the outer wall of the tenon 3, and the structure is matched. When the tenon 3 is inserted into the mortise 2, the positioning reinforcing strips 5 are embedded in the positioning grooves 4. By using the fit between the arc-shaped structures, the circumferential rotation of the tenon 3 in the mortise 2 is restricted, which enhances the positioning effect of the refractory brick body 1 in the horizontal direction. This ensures that the spliced refractory brick body 1 will not easily rotate relative to the outside when subjected to lateral external force or thermal stress, thereby improving the stability of the structure.
[0022] The oblique tooth grooves 6 on the inclined surface of the mortise 2 and the oblique tooth blocks 7 on the side wall of the tenon 3 are the same in number and structurally compatible. During the process of inserting the tenon 3 into the mortise 2, the oblique tooth blocks 7 gradually embed themselves along the inclined surface of the oblique tooth grooves 6, forming a wedge-shaped fastening structure. This not only increases the friction between the tenon 3 and the mortise 2, preventing the refractory brick body 1 from being misaligned or separated in the vertical direction, but also disperses the force to various directions when the refractory brick body 1 is subjected to thermal expansion or mechanical compression, avoiding local stress concentration. This effectively improves the load-bearing capacity and pull-out resistance of the splice of the refractory brick body 1, ensuring that the entire refractory brick body 1 structure remains stable under complex working conditions such as high temperature and high pressure.
[0023] In this embodiment, as shown in the appendix Figure 4 As shown, the surface of the refractory brick body 1 is sprayed with a heat insulation layer 8, and an anti-oxidation layer 9 is coated on the outside of the heat insulation layer 8. The heat insulation layer 8 is a ceramic heat insulation coating, and the anti-oxidation layer 9 is a silicon carbide coating.
[0024] Specifically, in this structure, by spraying a ceramic heat-insulating coating as a heat-insulating layer 8 on the surface of the refractory brick body 1 and applying a silicon carbide coating as an anti-oxidation layer 9, the heat insulation performance and anti-oxidation performance of the refractory brick body 1 under harsh environments such as high temperature and oxidation can be effectively improved, ensuring the stability and reliability of the refractory brick body 1 structure and meeting the requirements of high-temperature equipment in industrial production.
[0025] Working principle of this utility model:
[0026] This application provides a modular refractory brick tenon and mortise structure that can be spliced. When splicing, adjacent refractory brick bodies 1 are connected by inserting tenons 3 into mortises 2 to form a basic connection and constitute an integral structure, which facilitates construction and installation and replacement of damaged bricks later.
[0027] Among them, the outer wall positioning reinforcement strip 5 of the tenon 3 is embedded in the inner wall positioning groove 4 of the mortise 2. The arc-shaped fit restricts the circumferential rotation of the tenon 3, enhances the horizontal positioning, prevents the relative rotation of the refractory brick body 1 under lateral external force or thermal stress, and improves the structural stability. Meanwhile, the oblique tooth block 7 on the side wall of the tenon 3 is embedded along the oblique tooth groove 6 on the oblique surface of the mortise 2 to form a wedge-shaped fastening structure, increase friction, prevent vertical misalignment and separation, disperse thermal expansion or mechanical extrusion force, avoid local stress concentration, improve the load-bearing and pull-out resistance of the splice, and ensure the structural stability under complex working conditions.
[0028] Meanwhile, a ceramic heat-insulating coating is sprayed onto the surface of the refractory brick body 1 as a heat-insulating layer 8, and a silicon carbide coating is applied as an anti-oxidation layer 9 to improve the heat insulation and anti-oxidation performance of the refractory brick body 1 in high-temperature and oxidizing environments, ensuring structural stability and reliability, and meeting the requirements of industrial high-temperature equipment.
[0029] 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 modular refractory brick tenon and mortise structure that can be spliced, comprising a refractory brick body (1), characterized in that: The two outer walls of the refractory brick body (1) are provided with two mortises (2), and the other two outer walls of the refractory brick body (1) are fixedly installed with two tenons (3), and the tenons (3) are adapted to the structure of the mortises (2); The inner wall of the mortise (2) is provided with several arc-shaped positioning grooves (4), and the outer wall of the tenon (3) is fixedly installed with several arc-shaped positioning reinforcing strips (5).
2. The modular refractory brick tenon and mortise structure that can be spliced according to claim 1, characterized in that: The number of the positioning reinforcement strips (5) is set to be the same as the number of the positioning grooves (4), and the structures are matched.
3. The modular refractory brick tenon and mortise structure that can be spliced according to claim 1, characterized in that: Several oblique tooth grooves (6) are symmetrically opened on the two inclined surfaces of the mortise (2), and several oblique tooth blocks (7) are installed obliquely and symmetrically on the two side walls of the tenon (3).
4. The modular refractory brick tenon and mortise structure that can be spliced according to claim 3, characterized in that: The number of helical tooth blocks (7) and helical tooth grooves (6) are both set to be the same, and their structures are compatible.
5. The modular refractory brick tenon and mortise structure that can be spliced according to claim 1, characterized in that: The surface of the refractory brick body (1) is sprayed with a heat insulation layer (8), and an anti-oxidation layer (9) is applied to the outside of the heat insulation layer (8).
6. The modular refractory brick tenon and mortise structure that can be spliced according to claim 5, characterized in that: The heat insulation layer (8) is a ceramic heat insulation coating, and the anti-oxidation layer (9) is a silicon carbide coating.