Silicon carbide refractory brick for garbage incinerator
By introducing resistive gel and honeycomb trough structures into silicon carbide refractory bricks for waste incinerators, combined with heat insulation and bottom coating, the problems of heat loss and reduced incineration efficiency are solved, and more efficient insulation and incineration effects are achieved.
Patent Information
- Application Number
- CN202422151777.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-02
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-09-02
AI Technical Summary
After working for a period of time, the heat is gradually transferred to the outside world, resulting in a decrease in incineration efficiency and an increase in heat loss.
A silicon carbide refractory brick consisting of a surface coating and a refractory brick assembly is designed. The refractory brick assembly consists of the side walls of the brick body, the brick body body and the conductor gel. The surface coating is equipped with thermal insulation and a base coating to enhance thermal insulation performance.
By combining the resistive gel and honeycomb tank, the heat conduction rate is reduced, the heat retention time is extended in the refractory brick assembly, the insulation effect of the incinerator is improved, the heat loss rate is slowed, and the incineration efficiency is improved.
Smart Images
Figure CN222963976U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bricks for waste incinerators, and more specifically to a silicon carbide refractory brick for waste incinerators. Background Art
[0002] A waste incinerator is a device that uses high-temperature combustion of fuels such as coal, fuel oil, and gas to incinerate and carbonize waste, in order to achieve disinfection and harmless treatment purposes. The waste is put into the furnace chamber and converted into waste gas, slag, and heat through combustion. After the waste gas is dust-removed, it is discharged into the atmosphere through the chimney.
[0003] Among them, silicon carbide refractory bricks are one of the key materials for the inner lining of waste incinerators, with a variety of excellent performance characteristics and are suitable for high-temperature and highly corrosive working environments.
[0004] Although the existing refractory bricks can make the heat evenly distributed in the furnace chamber, after working for a period of time, the heat will gradually transfer to the outside, the heat loss will gradually increase, and the incineration efficiency will gradually decrease. Summary of the Utility Model
[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a silicon carbide refractory brick for waste incinerators to solve the problems existing in the above-mentioned background art.
[0006] The utility model provides the following technical solutions: A silicon carbide refractory brick for waste incinerators includes a surface coating and a refractory brick assembly. The surface coating is located outside the refractory brick assembly. The refractory brick assembly includes a brick side wall, and a brick body main body is fixedly connected to the inner side of the brick side wall. A honeycomb groove is opened at the top of the brick body main body, and a conduction gel is fixedly connected inside the brick body main body.
[0007] In a preferred technical solution, a special-shaped installation groove is opened on the inner side of the brick body main body, and the conduction gel is fixedly connected to the inner side of the special-shaped installation groove.
[0008] In a preferred technical solution, a heat insulation coating is fixedly sleeved on the inner side of the surface coating, a bottom layer coating is fixedly sleeved on the inner side of the heat insulation coating, and the bottom layer coating is fixedly sleeved on the outside of the brick side wall.
[0009] In a preferred technical solution, the honeycomb groove is regular hexagon-shaped, and the distances between adjacent two honeycomb grooves are all the same.
[0010] In a preferred technical solution, the height of the honeycomb groove, the height of the brick side wall, and the height of the brick body main body are all the same.
[0011] In a preferred technical solution, the connection between the brick body main body and the brick body side wall is in a communicating state, and the width of the special-shaped installation groove is the same as the width of the brick body main body.
[0012] In a preferred technical solution, one-half of the difference between the height of the special-shaped installation groove and the height of the brick body main body, the thickness of the surface coating, the thickness of the heat insulation coating, and the thickness of the bottom layer coating are the same.
[0013] Technical effects and advantages of the present utility model:
[0014] 1. In the present utility model, by providing a refractory brick assembly and a conduction gel that cooperate with each other, when the incinerator is in a working state, when the fire temperature is transmitted to the outer surface of the refractory brick assembly close to the furnace chamber side, it first contacts the brick body side wall and the brick body main body. Under the action of the physical properties of silicon carbide itself, heat conduction is carried out for the first time, so that the heat is evenly distributed on the inner side of the brick body side wall and the brick body main body close to the furnace chamber. When the heat continues to be transmitted through the inner walls of the brick body side wall and the brick body main body, it will contact the inside of the honeycomb groove and the conduction gel, and the air between the conduction gel and the honeycomb groove is in a different physical state from that of the silicon carbide substance, so the heat conduction rate will decrease, and the time for the heat to remain in the refractory brick assembly will increase, that is, further heat preservation is carried out in the furnace chamber, the heat loss speed is slowed down, and the incineration effect is improved.
[0015] 2. In the present utility model, by providing a heat insulation coating and a bottom layer coating, when the incinerator is in a working state, the fire directly burns the surface coating facing the inner side of the furnace chamber. The heat insulation coating is located inside the surface coating, providing additional heat insulation, anti-corrosion or thermal shock resistance performance for the refractory brick assembly, and can continue to reduce the high temperature, chemical erosion and thermal stress in the incinerator. The bottom layer coating is located inside the heat insulation coating, which is beneficial to enhancing the adhesion between the heat insulation coating and the silicon carbide refractory brick, ensuring that the surface coating and the heat insulation coating can normally protect the refractory brick assembly, and avoiding the situation of uneven heat absorption caused by cracking of the refractory brick assembly. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic cross-sectional view of the overall structure of the present utility model.
[0017] Figure 2 It is a schematic diagram of the overall structure of the present utility model.
[0018] Figure 3 It is a schematic diagram of the structure of the refractory brick assembly of the present utility model.
[0019] Figure 4 It is a schematic top cross-sectional view of the structures of the brick body side wall and the brick body main body of the present utility model.
[0020] Figure 5 It is a schematic cross-sectional view of the structure of the refractory brick assembly of the present utility model.
[0021] The reference numerals are as follows:
[0022] 1. Surface coating; 2. Heat insulation coating; 3. Bottom layer coating; 4. Refractory brick assembly; 401. Brick side wall; 402. Brick main body; 403. Honeycomb groove; 404. Special-shaped installation groove; 5. Conductance gel. Detailed implementation manners
[0023] Next, the technical solutions in the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the present utility model. In addition, the forms of each structure described in the following implementation manners are merely examples, and the silicon carbide refractory bricks for waste incinerators involved in the present utility model are not limited to the structures described in the following implementation manners. All other implementation manners obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model.
[0024] Referring to Figures 1 to 5 , the present utility model provides a silicon carbide refractory brick for a waste incinerator, which includes a surface coating 1 and a refractory brick assembly 4. The surface coating 1 is located outside the refractory brick assembly 4. The refractory brick assembly 4 includes a brick side wall 401. The inner side of the brick side wall 401 is fixedly connected to a brick main body 402. A honeycomb groove 403 is formed at the top of the brick main body 402. A conductance gel 5 is fixedly connected inside the brick main body 402;
[0025] Specifically, when the incinerator is in a working state and the fire temperature is transmitted to the outer surface of the refractory brick assembly 4 close to the furnace chamber, it first contacts the brick side wall 401 and the brick main body 402. Under the action of the physical properties of silicon carbide itself, heat conduction is carried out for the first time, so that the heat is evenly distributed at the inner side of the brick side wall 401 and the brick main body 402 close to the furnace chamber. When the heat continues to be transmitted through the inner walls of the brick side wall 401 and the brick main body 402, it will contact the inner side of the honeycomb groove 403 and the conductance gel 5. Moreover, the air between the conductance gel 5 and the honeycomb groove 403 is in a different physical state from that of the silicon carbide substance, and the heat conduction rate will decrease, and the time for the heat to remain in the refractory brick assembly 4 will increase, that is, further heat preservation is carried out in the furnace chamber, the heat loss speed is slowed down, and the incineration effect is improved.
[0026] In a preferred technical solution, a special-shaped installation groove 404 is formed inside the brick main body 402, and the conductance gel 5 is fixedly connected to the inner side of the special-shaped installation groove 404;
[0027] Specifically, the guiding gel 5 completely fills the inside of the special-shaped installation groove 404. The overall volume of the guiding gel 5 is in a transition fit with the volume inside the special-shaped installation groove 404, ensuring that when heat conduction continues at the brick sidewall 401 and the honeycomb groove 403 near the special-shaped installation groove 404, the guiding gel 5 is in a gel state, different from the solid silicon carbide material state, which reduces the heat conduction rate.
[0028] In a preferred technical solution, a heat insulation coating 2 is fixedly sleeved inside the surface coating 1, and a bottom layer coating 3 is fixedly sleeved inside the heat insulation coating 2. The bottom layer coating 3 is fixedly sleeved outside the brick sidewall 401.
[0029] Specifically, by providing the heat insulation coating 2 and the bottom layer coating 3, when the incinerator is in operation, the fire directly burns the surface coating 1 facing the inside of the furnace chamber. The heat insulation coating 2 is located inside the surface coating 1, providing additional heat insulation, erosion resistance, or thermal shock resistance for the refractory brick assembly 4, which can further reduce the high temperature, chemical erosion, and thermal stress inside the incinerator. The bottom layer coating 3 is located inside the heat insulation coating 2, which is beneficial to enhancing the adhesion between the heat insulation coating 2 and the silicon carbide refractory brick, ensuring that the surface coating 1 and the heat insulation coating 2 can normally protect the refractory brick assembly 4 and preventing the refractory brick assembly 4 from cracking and causing uneven heat absorption.
[0030] In a preferred technical solution, the honeycomb groove 403 is regular hexagon-shaped, and the distances between adjacent honeycomb grooves 403 are all the same.
[0031] Specifically, the regular hexagon can expand the contact area with the brick body main part 402 while maintaining stability, enabling heat from multiple directions to conduct towards the honeycomb groove 403 and reducing the heat conduction rate.
[0032] In a preferred technical solution, the height of the honeycomb groove 403, the height of the brick sidewall 401, and the height of the brick body main part 402 are all the same; heat can be enclosed inside the bottom layer coating 3.
[0033] In a preferred technical solution, the connection between the brick body main part 402 and the brick sidewall 401 is in a communicating state, and the width of the special-shaped installation groove 404 is the same as the width of the brick body main part 402.
[0034] The contact area between the brick sidewall 401 and the guiding gel 5 and the honeycomb groove 403 is increased, enabling the heat of the brick sidewall 401 and the brick body main part 402 to quickly contact the guiding gel 5 and the honeycomb groove 403 for heat conduction, further reducing heat loss.
[0035] In a preferred technical solution, half of the difference between the height of the special-shaped installation groove 404 and the height of the brick body main part 402 is the same as the thickness of the surface coating 1, the thickness of the heat insulation coating 2, and the thickness of the bottom layer coating 3.
[0036] The height of the irregular installation groove 404 is lower than the heights of the brick body main body 402 and the brick body side wall 401, and half of the difference between the height of the irregular installation groove 404 and the height of the brick body main body 402 is the same as the thicknesses of the surface coating 1, the heat insulation coating 2, and the bottom layer coating 3, which can ensure the uniformity of heat conduction.
[0037] The working principle of the present utility model: When the incinerator is in the working state, the fire directly burns the surface coating 1 facing the inner side of the furnace chamber. The heat insulation coating 2 is located inside the surface coating 1 and provides additional heat insulation, erosion resistance, or thermal shock resistance for the refractory brick assembly 4, which can further reduce the high temperature, chemical erosion, and thermal stress inside the incinerator. The bottom layer coating 3 is located inside the heat insulation coating 2, which is beneficial to enhancing the adhesion between the heat insulation coating 2 and the silicon carbide refractory brick, ensuring that the surface coating 1 and the heat insulation coating 2 can normally protect the refractory brick assembly 4 and preventing the refractory brick assembly 4 from cracking, thus avoiding the situation of uneven heat absorption;
[0038] When the fire temperature is transferred to the outer surface of the refractory brick assembly 4 close to the furnace chamber side, it first contacts the brick body side wall 401 and the brick body main body 402, and conducts heat for the first time under the action of the physical properties of silicon carbide itself, so that the heat is evenly distributed at the inner side of the brick body side wall 401 and the brick body main body 402 close to the furnace chamber. When the heat continues to be transferred through the inner walls of the brick body side wall 401 and the brick body main body 402, it will contact the inside of the honeycomb groove 403 and the conduction gel 5;
[0039] Since the inside of the honeycomb groove 403 is filled with air, when the brick body side wall 401 and the honeycomb groove 403 conduct heat near the honeycomb groove 403, the gaseous and solid silicon carbide have different physical states, so the heat conduction rate will decrease; when the brick body side wall 401 and the honeycomb groove 403 conduct heat near the irregular installation groove 404, the conduction gel 5 is in a gel state, which is different from the solid silicon carbide in physical state, so the heat conduction rate will also decrease; this increases the time for the heat to remain in the refractory brick assembly 4, that is, further insulates the furnace chamber and slows down the heat loss rate.
[0040] Finally, several points should be noted: First, in the description of this application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. It can be a mechanical connection or an electrical connection, or it can be the internal connection of two components. It can be directly connected. "Up", "down", "left", "right", etc. are only used to represent the relative position relationship. When the absolute position of the described object changes, the relative position relationship may change;
[0041] Secondly: In the accompanying drawings of the disclosed embodiments of the present utility model, only the structures related to the disclosed embodiments are involved. For other structures, reference may be made to the general design. Without conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;
[0042] Finally: The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A silicon carbide refractory brick for a waste incinerator, comprising a surface coating (1) and a refractory brick assembly (4), characterized in that: The surface coating (1) is located on the outside of the refractory brick assembly (4), and the refractory brick assembly (4) comprises a brick side wall (401), the inner side of which is fixedly connected to a brick body (402), a honeycomb groove (403) is provided on the top of the brick body (402), and a resistive gel (5) is fixedly connected to the inside of the brick body (402).
2. The silicon carbide refractory brick for a waste incinerator according to claim 1, characterized in that: A special-shaped installation groove (404) is provided on the inner side of the brick body (402), and the resistive gel (5) is fixedly connected to the inner side of the special-shaped installation groove (404).
3. The silicon carbide refractory brick for a waste incinerator according to claim 2, characterized in that: The inner side of the surface coating (1) is fixedly sleeved with a heat-insulating coating (2), the inner side of the heat-insulating coating (2) is fixedly sleeved with a bottom coating (3), and the bottom coating (3) is fixedly sleeved on the outer side of the brick body side wall (401).
4. The silicon carbide refractory brick for a waste incinerator according to claim 1, characterized in that: The honeycomb grooves (403) are in the form of regular hexagons, and the distances between two adjacent honeycomb grooves (403) are the same.
5. The silicon carbide refractory brick for a waste incinerator according to claim 1, characterized in that: The height of the honeycomb groove (403), the height of the brick body side wall (401) and the height of the brick body (402) are all the same.
6. The silicon carbide refractory brick for a waste incinerator according to claim 2, characterized in that: The brick body main body (402) is connected to the brick body side wall (401) in a communicating state, and the width of the special-shaped installation groove (404) is the same as the width of the brick body main body (402).
7. The silicon carbide refractory brick for a waste incinerator according to claim 3, characterized in that: The height of the special-shaped installation groove (404) is half of the difference between the height of the brick body (402), the thickness of the surface coating (1), the thickness of the heat-insulating coating (2) and the thickness of the bottom coating (3) are the same.