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Composite wearing-resistant silica brick

A composite brick and silicon molybdenum technology, which is applied in the field of refractory bricks, can solve the problems of reducing the life of the rotary kiln, damage, and increasing production costs, and achieves the effects of improving equipment operation rate, high compressive strength, and saving raw materials.

Active Publication Date: 2008-07-02
郑州真金耐火材料有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, silicon molybdenum wear-resistant bricks are commonly used in large-scale rotary kilns to build kiln bodies. Deformation, peeling, damage, and falling of bricks in the rotary kiln reduce the life of the rotary kiln, and due to the serious heat loss of the thermal conductivity, the production cost is greatly increased, fuel is wasted, labor costs and raw materials are consumed, and investment High and low output, the economic benefits of the enterprise are directly affected

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The silicon molybdenum wear-resistant composite brick of the present invention is prepared from raw materials such as high alumina bauxite, SiC powder, white clay powder, kyanite powder, and lignin solution according to the following weight ratio and steps:

[0030] Proportion:

[0031] 100 parts of high alumina bauxite; 10 parts of SiC powder; 6 parts of white clay powder; 3 parts of kyanite powder; 6 parts of lignin solution;

[0032] step:

[0033] Step 1: Preparation

[0034] Select high-alumina bauxite raw materials, select high-quality blocks with dense texture, hard, well-sintered, and blue-black fracture, put them into the crusher for coarse crushing, and screen out 15 parts of 6-4mm aggregate, 0.5 mm<grain size<4mm, 60 parts of aggregate are used for later use; then the remaining raw materials are ground into fine powder with a particle size of ≤0.074mm for later use;

[0035] The second step: mixing and molding

[0036] a. Weigh out 20 parts of high-alumin...

Embodiment 2

[0042] The silicon molybdenum wear-resistant composite brick of the present invention is characterized in that it is prepared from the raw materials high alumina bauxite, SiC powder, white clay powder, kyanite powder, and lignin solution according to the following weight ratio and steps to make:

[0043] Proportion:

[0044] 130 parts of high alumina bauxite; 15 parts of SiC powder; 8 parts of white clay powder; 5 parts of kyanite powder; 7 parts of lignin solution;

[0045] step:

[0046] Step 1: Preparation

[0047] Select high-alumina bauxite raw materials, select high-quality blocks with dense texture, hard, good sintering, and blue-black fracture, put them into the crusher for coarse crushing, and screen out 18 parts of 6-4mm aggregate, 0.5 mm<grain size<4mm, 80 parts of aggregate are used for later use; then the remaining raw materials are ground into fine powder with a particle size of ≤0.074mm for later use;

[0048] The second step: mixing and molding

[0049] a....

Embodiment 3

[0055] The silicon molybdenum wear-resistant composite brick of the present invention is prepared from raw materials such as high alumina bauxite, SiC powder, white clay powder, kyanite powder, and lignin solution according to the following weight ratio and steps:

[0056] Proportion:

[0057] 160 parts of high alumina bauxite; 20 parts of SiC powder; 10 parts of white clay powder; 6 parts of kyanite powder; 8 parts of lignin solution; 3 parts of metal silicon powder; 5 parts of silicon oxide micropowder;

[0058] step:

[0059] Step 1: Preparation

[0060] Select high-alumina bauxite raw materials, select high-quality blocks with dense texture, hard, well-sintered, and blue-black fracture, put them into the crusher for coarse crushing, and screen out 20 parts of 6-4mm aggregate, 0.5 mm<grain size<4mm, 100 parts of aggregate for use; then grind the remaining raw materials into fine powder with a particle size of ≤0.074mm for use;

[0061] The second step: mixing and molding...

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PUM

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Abstract

The invention discloses a composite brick of silicon-mullite abrasion-proof composite brick, which comprises the following parts: 100-160g high-aluminium alumina, 10-20g SiC, 6-10g white clay powder, 3-6g blue crystal powder and 6-8g lignin solution, wherein these materials are put in the mould to do one-time moulding, which forms composite brick with flame-proof layer and thinner insulating layer to interleave at hound-tooth shape; the composite brick improves strength for rotary kiln, which possesses high strength, load and heat shock and low conductivity without stripping and damaging.

Description

technical field [0001] The invention relates to refractory bricks, in particular to a silicon molybdenum wear-resistant composite brick for an alkaline rotary kiln. Background technique [0002] At present, silicon molybdenum wear-resistant bricks are commonly used in large-scale rotary kilns to build kiln bodies. Deformation, peeling, damage, and falling of bricks in the rotary kiln reduce the life of the rotary kiln, and due to the serious heat loss of the thermal conductivity, the production cost is greatly increased, fuel is wasted, labor costs and raw materials are consumed, and investment High and low output, the economic benefits of enterprises are directly affected. Contents of the invention [0003] The object of the present invention is to provide a silicon molybdenum wear-resistant composite brick with high compressive strength and low thermal conductivity. [0004] To achieve the above object, the present invention can take the following technical solutions: ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/10C04B35/66C04B35/622
Inventor 宋金标
Owner 郑州真金耐火材料有限责任公司
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