Composite wear-resistant refractory brick

Abstract

The utility model discloses a composite wear-resistant refractory brick, which relates to the technical field of refractory materials, and comprises a heat preservation and insulation layer (2) positioned on the outer side and a heat conduction layer (4) positioned on the inner side, the heat preservation and insulation layer (2) comprises a heat insulation layer (2) positioned on the inner side and a heat preservation layer (1) positioned on the outer side, and the composite wear-resistant refractory brick further comprises an inclined support body (3) arranged between the heat insulation layer (2) and the heat conduction layer (4), the number of the inclined supporting bodies is at least two, and the two inclined supporting bodies (3) are in a V shape. Compared with an existing plate-shaped support, the V-shaped support of the composite wear-resistant refractory brick has the advantages that the support strength is greatly improved, and the hollow structure is favorable for reducing the overall mass while the strength is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of refractory materials, in particular to a composite wear-resistant refractory brick. Background Art

[0002] Refractory bricks are refractory building materials made by burning refractory clay or other refractory raw materials. They are often used in buildings that require high temperature and heat-resistant environments. In actual applications, in order to reduce the weight of refractory bricks and achieve the purpose of energy saving and environmental protection, through holes or through grooves are often opened on the refractory brick body, which are so-called hollow refractory bricks, but the strength of the refractory bricks will decrease accordingly. The patent document with application number 201520909378.3 discloses a composite special-shaped refractory brick, which is combined with an insulation layer, a support, a heat-conducting layer and a thermal insulation layer to construct a kiln wall with a hollow structure. Although this structure reduces weight and ensures the thermal insulation effect, because it only has a plate-shaped structure between the insulation layer and the heat-conducting layer, the overall structural strength of the refractory brick is low, and the strength is hollow in the direction after the kiln wall is constructed, which also leads to low compressive strength of the kiln wall. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a composite wear-resistant refractory brick with light weight and high strength.

[0004] The technical solution adopted by the utility model to solve its technical problems is: the composite wear-resistant refractory brick includes a thermal insulation layer located on the outside and a heat-conducting layer located on the inside, the thermal insulation layer includes an insulation layer located on the inside and an insulation layer located on the outside, and also includes an inclined support body arranged between the insulation layer and the heat-conducting layer, the number of the support bodies is at least two, and the shape of the two inclined support bodies is V-shaped.

[0005] Furthermore, the lower end of the V-shaped inclined support body is connected to the heat-conducting layer, and the upper end is connected to the heat-insulating layer.

[0006] Furthermore, it also includes a third support body, which is connected between the two inclined support bodies.

[0007] Furthermore, the third support body is an arc-shaped structure.

[0008] Furthermore, the heat insulating layer and the heat conducting layer are provided with a first limiting groove at one end along the length direction, and a first plug block is provided at the other end;

[0009] The heat insulating layer and the heat conducting layer are provided with a second limiting groove at one end along the thickness direction, and a second plugging block is arranged at the other end.

[0010] Furthermore, the second limiting groove is a square hole, and the second inserting block is a square block adapted to the square hole.

[0011] Furthermore, the number of the second limiting grooves and the number of the second inserting blocks are two respectively.

[0012] The composite wear-resistant refractory brick comprises an external thermal insulation layer, an internal heat-conducting layer and an inclined support body connected between the heat-insulating layer and the heat-conducting layer. The overall shape of the inclined support body is V-shaped. Compared with the existing plate-shaped support, the V-shaped support of the composite wear-resistant refractory brick greatly improves the strength of the support. While ensuring the strength, the hollow structure is conducive to reducing the overall mass. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0014] Figure 1 This is a schematic diagram of the structure of the composite wear-resistant refractory brick of the utility model embodiment;

[0015] Figure 2 This is a schematic diagram of the structure of the composite wear-resistant refractory brick of the utility model embodiment;

[0016] Figure 3 It is a side view of a rotary kiln constructed according to an embodiment of the utility model;

[0017] Figure 4 This is a schematic diagram of the structure of a rotary kiln constructed in an embodiment of the utility model;

[0018] Figure 5 It is a schematic diagram of the structure of a rotary kiln constructed according to an embodiment of the utility model.

[0019] Description of reference numerals:

[0020] 1. Insulation layer; 2. Heat insulating layer; 3. Inclined support body; 4. Heat conducting layer; 6. First limiting groove; 7. First plug-in block; 8. Second limiting groove; 9. Second plug-in block. DETAILED DESCRIPTION

[0021] In order to have a clearer understanding of the technical features, purposes and effects of the present utility model, the specific implementation methods of the present utility model are now described in detail with reference to the accompanying drawings.

[0022] like Figure 1-5 As shown, the composite wear-resistant refractory brick includes a thermal insulation layer 2 located on the outside and a heat conductive layer 4 located on the inside. The thermal insulation layer 2 includes an insulation layer 2 located on the inside and an insulation layer 1 located on the outside. It also includes an inclined support body 3 arranged between the insulation layer 2 and the heat conductive layer 4. The number of the support bodies is at least two, and the shape of the two inclined support bodies 3 is V-shaped.

[0023] The composite wear-resistant refractory brick comprises an external thermal insulation layer 2, an internal heat-conducting layer 4 and an inclined support body 3 connected between the heat-insulating layer 2 and the heat-conducting layer 4. The overall shape of the inclined support body 3 is V-shaped. Compared with the existing plate-shaped support, the V-shaped support of the composite wear-resistant refractory brick greatly improves the strength of the support. While ensuring the strength, the hollow structure is conducive to reducing the overall mass.

[0024] The lower end of the V-shaped inclined support body 3 is connected to the heat conducting layer 4, and the upper end is connected to the heat insulating layer 2. Of course, in some other embodiments, the inclined support body 3 can also be an inverted V shape, and both connection methods can ensure the connection strength.

[0025] In order to further improve the strength and stability of the connection, a third support body is also included, which is not shown and is connected between the two inclined support bodies 3. In this embodiment, the third support body is an arc-shaped structure, and the third support body is concentric with the heat insulation layer 2 and the heat conduction layer 4.

[0026] The heat insulating layer 2 and the heat conducting layer 4 have a first limiting groove 6 at one end along the length direction and a first plug block 7 at the other end; the heat insulating layer 2 and the heat conducting layer 4 have a second limiting groove 8 at one end along the thickness direction and a second plug block 9 at the other end.

[0027] The second limiting groove 8 is a square hole, and the second inserting block 9 is a square block adapted to the square hole. Preferably, the number of the second limiting groove 8 and the number of the second inserting block 9 are two respectively. Of course, in some other embodiments, there can also be more than one.

[0028] The materials of each part of the structure can refer to the document disclosed in the patent application number 201520909378.3. The quoted part is for explanation and no further description is given. The material of the heat insulation layer is No. 2 corundum mullite silicon carbide, the material of the heat conductive layer is No. 1 corundum mullite silicon carbide, the material of the support 3 is No. 3 corundum mullite silicon carbide, the insulation layer (5) is a refractory ceramic fiber blanket, and the composite special-shaped refractory brick is formed by machine pressing. The SiC content of No. 1 corundum mullite silicon carbide is 85% (wt), the SiC content of No. 2 corundum mullite silicon carbide is 12% (wt), and the SiC content of No. 3 corundum mullite silicon carbide is 50% (wt).

[0029] like Figure 3-5 In the rotary kiln wall constructed as shown, the composite wear-resistant refractory bricks on the same plane are connected by the first limiting groove 6 and the first plug block 7, and the front and rear composite wear-resistant refractory bricks are connected by the second limiting groove 8 and the second plug block 9.

[0030] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0031] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.

Claims

1. A composite wear-resistant refractory brick, comprising a heat-insulating layer (2) located on the outside and a heat-conducting layer (4) located on the inside, wherein the heat-insulating layer (2) comprises a heat-insulating layer (2) located on the inside and a heat-insulating layer (1) located on the outside, characterized in that: It also comprises an inclined support body (3) arranged between the heat insulating layer (2) and the heat conducting layer (4), the number of the inclined support bodies is at least two, and the shape of the two inclined support bodies (3) is V-shaped.

2. The composite wear-resistant refractory brick according to claim 1, characterized in that: The lower end of the V-shaped inclined support body (3) is connected to the heat conducting layer (4), and the upper end is connected to the heat insulating layer (2).

3. The composite wear-resistant refractory brick according to claim 1, characterized in that: It also comprises a third support body, wherein the third support body is connected between the two inclined support bodies (3).

4. The composite wear-resistant refractory brick according to claim 3, characterized in that: The third support body is an arc-shaped structure.

5. The composite wear-resistant refractory brick according to any one of claims 1 to 4, characterized in that: The heat insulating layer (2) and the heat conducting layer (4) are provided with a first limiting groove (6) at one end along the length direction, and a first inserting block (7) at the other end; The heat insulating layer (2) and the heat conducting layer (4) are provided with a second limiting groove (8) at one end along the thickness direction, and a second insert block (9) at the other end.

6. The composite wear-resistant refractory brick according to claim 5, characterized in that: The second limiting groove (8) is a square hole, and the second insert block (9) is a square block adapted to the square hole.

7. The composite wear-resistant refractory brick according to claim 6, characterized in that: The number of the second limiting groove (8) and the number of the second insert block (9) are two respectively.

Images