Composite heat insulation plate structure for kiln
By adopting a composite heat insulation plate structure in the kiln and fixing with high pressure resistance strength support and fire mud, the problem of the heat insulation material being easily compressed and deformed is solved, ensuring that the heat insulation performance of the kiln is not reduced.
Patent Information
- Application Number
- CN202520299705.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-25
- Publication Date
- 2025-04-11
- Estimated Expiration
- 2035-02-25
AI Technical Summary
Existing kiln insulation materials are easily compressed and deformed, resulting in a degradation of thermal insulation performance and even steel leakage accidents.
The composite heat insulation plate structure is adopted, including a support body with a higher pressure resistance than the heat insulation plate. It is fixed by perforation of the support body and fire mud to ensure that the heat insulation plate is not compressed and maintains thermal insulation performance.
Effectively prevent the compression and deformation of the heat insulation plate, maintain the efficient insulation performance of the kiln, and avoid problems such as steel leakage.
Smart Images
Figure CN222747745U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of kiln heat insulation, in particular to a composite heat insulation board structure for a kiln. Background Art
[0002] In order to reduce energy loss and save energy, the refractory linings of high-temperature kilns such as steel ladles, iron ladles, aluminum ladles, continuous casting tundishes, steel rolling furnaces, rotary kilns, tunnel kilns, hot air ducts, etc. generally use thermal insulation materials such as aluminum silicate fiberboard, aluminum silicate fiber wool, aerogel boards, aerogel wool, siliceous nano-insulation boards, lightweight castables and lightweight insulation bricks. The thermal insulation materials are arranged between the working lining of the kiln and the metal shell of the kiln.
[0003] Although traditional thermal insulation materials have low thermal conductivity and good thermal insulation performance, they also face some difficult-to-solve problems in their use: First, the strength of thermal insulation materials is low, and they are easily compressed and crushed, and the compression ratio is generally large, which will cause the integrity of the high-temperature lining structure including the thermal insulation materials to be destroyed or deteriorated, the thermal insulation performance will be reduced, and even accidents such as steel leakage from the ladle may occur. 2. Insulating materials such as aluminum silicate fiber, aerogel, and siliceous nano-insulating board have poor high-temperature resistance and are prone to crystallization during high-temperature use. After crystallization occurs in such insulating materials, if there is no large external pressure, the insulating materials can barely maintain the original porous structure, and the original thermal insulation performance or heat insulation performance is only reduced to a certain extent. If the insulating materials are still subjected to expansion pressure such as working lining after crystallization, the usable thickness of the insulating materials will be sharply reduced or even powderized, the original insulating material structure will deteriorate, the overall structural property of the refractory lining structure will decline, and the insulating performance will also decline. Utility Model Content
[0004] The utility model provides a composite heat insulation board structure for a kiln, so as to solve the technical problem in the prior art that the heat insulation material is easily compressed and deformed, resulting in poor heat insulation performance.
[0005] In order to solve the above problems, the composite insulation board structure for a kiln provided by the utility model adopts the following technical scheme: a composite insulation board structure for a kiln, comprising an insulation board, which is used to be arranged between the working lining of the kiln and the metal shell of the kiln, and also comprises a support body with a compressive strength greater than that of the insulation board; a support body through-hole is provided in the normal direction of the surface of the insulation board, and the support body is fixedly inserted in the support body through-hole; or the support body is located in the support body through-hole, and there is a distance between the end face of the support body and the surface of the insulation board, and the support body through-hole is filled with fire mud located at both ends of the support body to fix the support body in the support body through-hole.
[0006] The compressive strength of the support body is greater than that of the insulation board. When the insulation board is compressed, the support body bears the pressure to ensure that the insulation board is not compressed, or to reduce the compression of the insulation board, so as to ensure that the thermal insulation performance of the composite insulation board structure for the entire kiln is not reduced or is reduced very little. The support body and the insulation board can be processed separately and then assembled together. When fixed by fire mud, the fire mud can ensure that the support body and the insulation board are reliably fixed and connected.
[0007] As a further improvement, the composite heat insulation board structure for the kiln also includes a coating sprayed on the outside of the heat insulation board or a mud material smeared on the outside of the heat insulation board.
[0008] As a further improvement, the composite heat insulation board structure for the kiln also includes a coating sprayed on the outside of the mud material.
[0009] As a further improvement, the composite heat insulation board structure for the kiln also includes mud material applied to the outside of the coating.
[0010] As a further improvement, the support body is provided with a plurality of perforations.
[0011] As a further improvement, the support body perforation is one of a circular hole, an elliptical hole, a diamond hole, and a square hole, and the support body is correspondingly one of a cylinder, an elliptical cylinder, a diamond cylinder, and a square cylinder.
[0012] As a further improvement, the insulation board is a board body composited by one or more of aluminum silicate fiber board, aluminum silicate fiber wool, aerogel board, aerogel wool, siliceous nano insulation board, lightweight castable and lightweight insulation brick.
[0013] As a further improvement, the support body is made of ceramic or refractory material having a higher compressive strength than the insulation board.
[0014] The beneficial effects of the utility model are:
[0015] The compressive strength of the support body is greater than that of the insulation board. When the insulation board is compressed, the support body bears the pressure to ensure that the insulation board is not compressed, or to reduce the compression of the insulation board, so as to ensure that the thermal insulation performance of the composite insulation board structure for the entire kiln is not reduced or is reduced very little. The support body and the insulation board can be processed separately and then assembled together. When fixed by fire mud, the fire mud can ensure that the support body and the insulation board are reliably fixed and connected. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] By reading the detailed description below with reference to the accompanying drawings, the above and other purposes, features and advantages of the exemplary embodiments of the present invention will become easy to understand. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:
[0017] Figure 1 It is a top view of the composite heat insulation board structure for kiln;
[0018] Figure 2 for Figure 1 Sectional view of section AA;
[0019] Figure 3 It is a top view of the heat insulation board in the composite heat insulation board structure for kiln;
[0020] Figure 4 for Figure 3 Cross-sectional view of the middle BB section;
[0021] Figure 5 It is a top view of other embodiments of the composite heat insulation board structure for kiln;
[0022] Figure 6 for Figure 5 Cross-sectional view of section CC.
[0023] Description of reference numerals:
[0024] 1. Insulation board; 11. Perforation of support body; 2. Support body; 3. Fire clay; 4. Coating. DETAILED DESCRIPTION
[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Those skilled in the art should know that the embodiments described below are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.
[0026] The principle and spirit of the present invention are explained in detail below with reference to several representative embodiments of the present invention.
[0027] The embodiment of the composite heat insulation board structure for kiln provided by the utility model:
[0028] like Figures 1 to 4 As shown, the composite heat insulation board structure for a kiln (hereinafter referred to as the composite heat insulation board structure) includes a heat insulation board 1, a support body 2, and fire clay 3.
[0029] like Figure 3 and Figure 4 As shown, a support body through hole 11 is provided in the normal direction of the board surface of the heat insulation board 1, and the support body through holes 11 are arranged in two rows spaced apart from each other, and each row has a plurality of support body through holes 11 spaced apart from each other. The support body through holes 11 completely penetrate the heat insulation board 1. Here, the support body through holes 11 are round holes.
[0030] The heat insulation board 1 is a board body composited by one or more heat insulation materials such as aluminum silicate fiber board, aerogel board, aluminum silicate fiber wool, aerogel wool, nano insulation board, lightweight castable, lightweight insulation brick, etc.
[0031] The support body 2 is a cylinder, and the support body 2 is inserted into the support body through hole 11 of the heat insulation board 1. Specifically, the outer diameter of the support body 2 is consistent with the inner diameter of the support body through hole 11, and the support body 2 can be fixed in the support body through hole 11 after insertion. The height of the support body 2 is less than the thickness of the heat insulation board 1. After the support body 2 is inserted into the support body through hole 11, there is a distance between the end faces of the support body 2 and the board surface of the corresponding end of the heat insulation board 1.
[0032] Here, the support body 2 is made of ceramic or refractory material, and the compressive strength of the support body 2 is greater than that of the insulation board 1. In other embodiments, the material of the support body 2 can be changed, and preferably, the compressive strength of the support body 2 is greater than or equal to 5 MPa.
[0033] The fire mud 3 is filled in the support body through hole 11, and its function is to seal the opening of the support body through hole 11 and fix the position of the support body 2 to ensure that the support body 2 and the insulation board 1 form a whole. The fire mud 3 is flush with the board surface of the insulation board 1. The fire mud 3 here is heat-resistant fire mud. In other embodiments, the outer diameter of the support body 2 can also be slightly smaller than the inner diameter of the support body through hole 11, and the support body 2 is fixed only by the fire mud 3.
[0034] During processing, the insulation board 1 and the support body 2 are first processed and manufactured separately, and then the support body through hole 11 is opened on the insulation board 1, the support body 2 is inserted into the support body through hole 11, and then the opening of the support body through hole 11 is sealed with fire clay 3.
[0035] During actual processing, the insulation board 1 can be processed into a board with a thickness of 5-30mm, a length of 200-500mm, and a width of 50-300mm according to industry regulations and working conditions of kilns, etc. The aperture of the support body perforation 11 can be 5-300mm, and the size of the support body 2 varies with the aperture of the support body perforation 11. The number, arrangement, and aperture size of the support body perforations 11 can be increased or decreased according to the use occasion and the area of the insulation board 1; the support body perforation 11 can be only one. The thickness, length, and width of the insulation board 1 can also be adjusted according to different use occasions.
[0036] In other embodiments, Figure 5 and Figure 6 As shown, based on the above embodiment, the composite insulation board structure for the kiln also includes a coating 4 sprayed on the outside of the insulation board 1, where the coating 4 can be a heat radiation protection coating or a high-emission coating or a high-reflection coating or a cosmetic coating, etc.
[0037] During processing, after the heat insulation board 1 , the support body 2 , and the fire mud 3 are assembled, the coating 4 is sprayed on the outside of the heat insulation board 1 and the fire mud 3 .
[0038] The paint may be sprayed on all the outer surfaces of the heat insulation board 1; or the paint may be sprayed on only part of the outer surfaces of the heat insulation board 1. In other embodiments, in addition to spraying the paint on the outer surface of the heat insulation board 1, mud (fire mud) may also be applied on the outer surface of the heat insulation board 1. In other embodiments, the paint may be sprayed on the outer surface of the heat insulation board 1 first, and then the mud may be applied on the outer surface of the paint; or the mud may be applied first, and then the paint may be sprayed on the outer surface of the mud.
[0039] In the above embodiment, the support body through hole 11 is a circular hole, and the support body 2 is correspondingly a cylindrical body. In other embodiments, the support body through hole 11 may be an elliptical hole, a diamond hole, a square hole, a rectangular hole, etc., and correspondingly, the support body 2 may be an ellipsoid, a diamond column, a square column, a rectangular column, etc. In other words, the shape of the support body 2 is consistent with the shape of the support body through hole 11, and it can be changed according to the shape.
[0040] In the above embodiment, the height of the support body 2 is less than the height of the support body through hole 11. After the support body 2 is inserted into the support body through hole 11, the two end openings of the support body through hole 11 need to be sealed with fire mud 3 to relatively fix the support body 2 and the insulation board 1. In other embodiments, the support body 2 is directly fixed and inserted into the support body through hole 11 of the insulation board 1, and does not need to be fixed with fire mud.
[0041] In addition, in the description of this specification, “plurality” means at least two, for example, two, three or more, etc., unless otherwise clearly and specifically defined.
Claims
1. A composite heat insulation board structure for a kiln, comprising a heat insulation board (1), the heat insulation board (1) being arranged between a working lining of the kiln and a metal shell of the kiln, characterized in that: It also includes a support body (2) having a compressive strength greater than that of the heat insulation board (1); a support body through hole (11) is provided in the normal direction of the board surface of the heat insulation board (1), and the support body (2) is fixedly inserted in the support body through hole (11); or the support body (2) is located in the support body through hole (11), there is a distance between the end surface of the support body (2) and the board surface of the heat insulation board (1), and the support body through hole (11) is filled with fire mud (3) located at both ends of the support body (2) to fix the support body (2) in the support body through hole (11).
2. The composite heat insulation board structure for a kiln according to claim 1, characterized in that: The composite heat insulation board structure for a kiln also includes a coating (4) sprayed on the outside of the heat insulation board (1) or a mud material smeared on the outside of the heat insulation board (1).
3. The composite heat insulation board structure for a kiln according to claim 2, characterized in that: The composite heat insulation board structure for a kiln also includes a coating (4) sprayed on the outside of the mud material.
4. The composite heat insulation board structure for a kiln according to claim 2, characterized in that: The composite heat insulation board structure for a kiln also includes mud material applied to the outside of the coating (4).
5. The composite heat insulation board structure for a kiln according to claim 1, characterized in that: The support body is provided with a plurality of perforations (11).
6. The composite heat insulation board structure for a kiln according to any one of claims 1 to 5, characterized in that: The support body through hole (11) is one of a circular hole, an elliptical hole, a diamond hole, and a square hole, and the support body (2) is correspondingly one of a cylinder, an elliptical cylinder, a diamond cylinder, and a square cylinder.
7. The composite heat insulation board structure for a kiln according to any one of claims 1 to 5, characterized in that: The thermal insulation board (1) is a board body composited from one or more of aluminum silicate fiber board, aluminum silicate fiber wool, aerogel board, aerogel wool, siliceous nano thermal insulation board, lightweight castable and lightweight thermal insulation brick.
8. The composite heat insulation board structure for a kiln according to any one of claims 1 to 5, characterized in that: The support body (2) is made of ceramic or refractory material having a higher compressive strength than the insulation board (1).