Reinforced silicon mullite brick

Abstract

The utility model relates to the technical field of refractory materials, and discloses a reinforced silicon mullite brick which comprises a silicon mullite brick base body, a groove and a protruding block are arranged in the middle of the left side and the middle of the right side of the silicon mullite brick base body respectively, and the groove and the protruding block are matched in shape. The silicon mullite brick base body comprises a base body layer, a heat preservation layer and a corrosion-resistant layer, the heat preservation layer is arranged on the periphery of the base body layer, the corrosion-resistant layer is arranged on the periphery of the heat preservation layer, the thickness of the heat preservation layer is 4-6 mm, and the thickness of the corrosion-resistant layer is 3-5 mm. According to the reinforced silicon mullite brick disclosed by the utility model, a multi-layer structure is arranged, the basic high-temperature resistance and erosion resistance are provided by the base body layer, the toughness and impact resistance of the base body layer are enhanced by adding the carbon fibers, and the heat preservation and heat insulation capability is improved by the heat preservation layer, so that the heat preservation and heat insulation capability of the silicon mullite brick base body is further improved; the corrosion-resistant layer and the ceramic protective layer obviously improve the corrosion resistance and the strength of the brick body, so that the overall performance of the silicon mullite brick is greatly improved, and the service life of the silicon mullite brick is greatly prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to refractory technology field especially relates to a reinforced silicon mullite brick. BACKGROUND

[0002] ‌Silicon mullite brick is a kind of aluminum-silicon material with silicon carbide, mullite or bauxite clinker as raw material, sintered at high temperature. Its main components include corundum, mullite and silicon carbide, and contains a small amount of cristobalite. Silicon mullite brick has good wear resistance, high mechanical strength, excellent corrosion resistance and thermal shock stability, and is widely used in cement rotary kiln except for sintering zone. The heat insulation performance of traditional silicon mullite brick is limited, and the structural strength is not good. SUMMARY

[0003] The main purpose of the utility model is to provide a reinforced silicon mullite brick, which can effectively solve the problems in the background art.

[0004] To achieve the above purpose, the technical scheme adopted by the utility model is as follows: a reinforced silicon mullite brick, comprising a silicon mullite brick base body, recesses and protrusions are arranged on the left and right sides of the silicon mullite brick base body respectively, and the shapes of the recesses and protrusions are matched.

[0005] The silicon mullite brick base body comprises a base layer, a heat preservation layer and a corrosion-resistant layer, the heat preservation layer is arranged on the outer periphery of the base layer, and the corrosion-resistant layer is arranged on the outer periphery of the heat preservation layer, the thickness of the heat preservation layer is 4-6mm, and the thickness of the corrosion-resistant layer is 3-5mm.

[0006] Preferably, the base layer is internally provided with carbon fibers, the length of the carbon fibers is 5-10mm, and the carbon fibers are arranged in disorder in the silicon mullite brick base.

[0007] Preferably, the shape of the silicon mullite brick base body is one of arc and rectangle.

[0008] Preferably, the recesses and protrusions are trapezoidal.

[0009] Preferably, the silicon mullite brick base body is internally provided with a plurality of heat conduction channels extending along the length direction thereof, the heat conduction channels are filled with high-thermal-conductivity materials, the high-thermal-conductivity material is boron nitride, and the straight length of the heat conduction channel is 3-5mm.

[0010] Preferably, the outer side of the silicon mullite brick base body is provided with a ceramic protective layer, the thickness of the ceramic protective layer is 0.3-0.6mm, and the material of the ceramic protective layer is alumina-zirconia composite ceramic.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] By setting up a multi-layer structure, the matrix layer provides basic high temperature resistance and corrosion resistance, the addition of carbon fiber enhances the toughness and impact resistance of the matrix layer, the insulation layer improves the thermal insulation capacity, further improving the thermal insulation capacity of the silicon-muzzle brick matrix, and the corrosion-resistant layer and ceramic protective layer significantly improve the corrosion resistance and strength of the brick, thereby greatly improving the overall performance and service life of the silicon-muzzle brick. Attached Figure Description

[0013] Fig. 1 This is a left-side perspective structural diagram of a reinforced silicon-mullite brick according to the present invention;

[0014] Fig. 2 This is a three-dimensional structural diagram of the right side of a reinforced silicon-mullite brick according to the present invention.

[0015] In the diagram: 1. Silicon-mullite brick matrix; 101. Matrix layer; 102. Insulation layer; 103. Corrosion-resistant layer; 2. Heat conduction channel; 3. Groove; 4. Protrusion. Detailed Implementation

[0016] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0017] like Figs. 1-2 As shown, a reinforced silica-mullite brick includes a silica-mullite brick matrix 1. Grooves 3 and protrusions 4 are respectively provided on the middle portions of the left and right sides of the silica-mullite brick matrix 1, with the shapes of the grooves 3 and protrusions 4 matching. In summary, by setting a multi-layer structure, the matrix layer 101 provides basic high-temperature resistance and corrosion resistance. The addition of carbon fiber enhances the toughness and impact resistance of the matrix layer 101. The insulation layer 102 improves the thermal insulation capacity, further enhancing the thermal insulation capacity of the silica-mullite brick matrix 1. The corrosion-resistant layer 103 and the ceramic protective layer significantly improve the corrosion resistance and strength of the brick, thereby greatly improving the overall performance and service life of the silica-mullite brick.

[0018] The silica-muzzle brick matrix 1 includes a matrix layer 101, an insulation layer 102, and a corrosion-resistant layer 103. The insulation layer 102 is disposed on the outer periphery of the matrix layer 101, and the corrosion-resistant layer 103 is disposed on the outer periphery of the insulation layer 102. The insulation layer 102 is 4-6 mm thick, and the corrosion-resistant layer 103 is 3-5 mm thick. The matrix layer 101 provides basic high-temperature resistance and corrosion resistance. The insulation layer 102 improves the thermal insulation capacity, further enhancing the thermal insulation capacity of the silica-muzzle brick matrix 1. The corrosion-resistant layer 103 and the ceramic protective layer significantly improve the corrosion resistance and strength of the brick.

[0019] The matrix layer 101 contains carbon fibers with a length of 5-10 mm. The carbon fibers are arranged randomly within the silicon-mullite brick matrix. The addition of these fibers enhances the toughness and impact resistance of the matrix layer 101, and significantly improves the corrosion resistance and strength of the brick.

[0020] The shape of the silicon-mullite brick matrix 1 is either arc-shaped or rectangular, which facilitates splicing.

[0021] The groove 3 and the protrusion 4 are trapezoidal to reduce the impact of tolerances on them during splicing.

[0022] The silicon-mullite brick matrix 1 has several heat-conducting channels 2 extending along its length. The heat-conducting channels 2 are filled with a high thermal conductivity material, which is boron nitride. The diameter of the heat-conducting channels 2 is 3-5 mm, which improves the heat dissipation capacity of the matrix layer (101), thereby improving its high temperature resistance and extending its service life.

[0023] A ceramic protective layer is provided on the outside of the silicon-mullite brick matrix 1. The thickness of the ceramic protective layer is 0.3-0.6mm. The material of the ceramic protective layer is alumina-zirconia composite ceramic, which improves the overall strength of the brick.

[0024] Working principle:

[0025] By setting up a multi-layer structure, the matrix layer 101 provides basic high temperature resistance and corrosion resistance. The addition of carbon fiber enhances the toughness and impact resistance of the matrix layer 101. The insulation layer 102 improves the thermal insulation capacity, further enhancing the thermal insulation capacity of the silicon-muzzle brick matrix 1. The corrosion-resistant layer 103 and the ceramic protective layer significantly improve the corrosion resistance and strength of the brick, thereby greatly improving the overall performance and service life of the silicon-muzzle brick.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A reinforced silica-mullite brick, comprising a silica-mullite brick matrix (1), characterized in that: The silicon-mullite brick substrate (1) has grooves (3) and protrusions (4) respectively provided on the middle of the left and right sides, and the shapes of the grooves (3) and protrusions (4) match. The silicon-mullite brick substrate (1) includes a substrate layer (101), an insulation layer (102), and a corrosion-resistant layer (103). The insulation layer (102) is disposed on the outer periphery of the substrate layer (101), and the corrosion-resistant layer (103) is disposed on the outer periphery of the insulation layer (102). The thickness of the insulation layer (102) is 4-6 mm, and the thickness of the corrosion-resistant layer (103) is 3-5 mm.

2. The reinforced silica-mullite brick according to claim 1, characterized in that: The matrix layer (101) contains carbon fibers with a length of 5-10 mm, and the carbon fibers are arranged randomly within the silicon-mullite matrix.

3. The reinforced silica-mullite brick according to claim 1, characterized in that: The shape of the silicon molybdenum brick matrix (1) is either arc-shaped or rectangular.

4. The reinforced silica-mullite brick according to claim 1, characterized in that: The groove (3) and the protrusion (4) are trapezoidal.

5. A reinforced silica-mullite brick according to claim 1, characterized in that: The silicon-mullite brick matrix (1) has several heat-conducting channels (2) extending along its length. The heat-conducting channels (2) are filled with a high thermal conductivity material, which is boron nitride. The diameter of the heat-conducting channels (2) is 3-5 mm.

6. The reinforced silica-mullite brick according to claim 1, characterized in that: The silicon-mullite brick matrix (1) is provided with a ceramic protective layer on the outside. The thickness of the ceramic protective layer is 0.3-0.6 mm, and the material of the ceramic protective layer is alumina-zirconia composite ceramic.

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