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Anti-erosion zirconium-containing andalusite brick and preparation method thereof

An anti-erosion, andalusite technology, applied in the field of refractory materials, to achieve the effect of increasing bulk density, reducing porosity, and excellent anti-erosion performance

Pending Publication Date: 2022-02-18
TONGDA REFRACTORY TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is: in order to overcome the technical defects of the refractory materials used in the existing rotary kiln lining, the present invention provides an anti-corrosion zirconium-containing andalusite brick and its preparation method

Method used

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Effect test

Embodiment 1

[0029] The anti-corrosion zirconium-containing andalusite brick of the present invention is represented by mass percent, consisting of 5% andalusite of 5-3mm raw material, 35% of andalusite of 3-1mm, 24% of andalusite of 1-0mm, and 200 mesh andalusite 28%, 1000 mesh zirconia 2% and 6% clay <0.088mm; in addition, add 3% dextrin aqueous solution (the specific gravity of dextrin aqueous solution is 1.2) accounting for the total weight of the above-mentioned various raw materials.

Embodiment 2

[0031] The anti-corrosion zirconium-containing andalusite brick of the present invention is represented by mass percent, consisting of 5% andalusite of 5-3mm raw material, 35% of andalusite of 3-1mm, 24% of andalusite of 1-0mm, and 200 mesh andalusite 25%, 1000 mesh zirconia 5% and clay <0.088mm 6%; in addition, add 3.5% dextrin aqueous solution (the specific gravity of dextrin aqueous solution is 1.2) accounting for the total weight of the above-mentioned various raw materials.

Embodiment 3

[0033] The anti-corrosion zirconium-containing andalusite brick of the present invention is represented by mass percent, consisting of 5% andalusite of 5-3mm raw material, 35% of andalusite of 3-1mm, 24% of andalusite of 1-0mm, and 200 mesh andalusite 20%, 10% of zirconia of 1000 meshes and 6% of clay <0.088mm; in addition, add 4% dextrin aqueous solution (the specific gravity of dextrin aqueous solution is 1.2) accounting for the total weight of the above-mentioned various raw materials.

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Abstract

The invention discloses an anti-erosion zirconium-containing andalusite brick and a preparation method thereof. The anti-erosion zirconium-containing andalusite brick is mainly composed of the following raw materials: andalusite of 5-3mm, andalusite of 3-1mm, andalusite of 1-0mm, andalusite of 200 meshes, a zirconium source and clay. In addition, a binding agent is added. The method comprises the following steps: firstly, uniformly mixing the andalusite of 5-3mm, 3-1mm and 1-0mm, then adding the binding agent, and performing uniform mixing to obtain a mixed material A; uniformly mixing 200-mesh andalusite, the zirconium source and the clay to obtain a mixed material B; and adding the mixed material B into the mixed material A, uniformly mixing, carrying out compression molding on the obtained total mixed material, performing drying, and finally performing sintering and cooling to obtain the product. The product prepared by the method has excellent erosion resistance, permeation resistance and thermal shock resistance, is suitable for rotary kilns and oversize cement kilns for co-processing hazardous wastes, and has a service life of more than 15 months.

Description

1. Technical field: [0001] The invention belongs to the technical field of refractory materials, and in particular relates to an anti-corrosion zirconium-containing andalusite brick and a preparation method thereof. 2. Background technology: [0002] The rotary kiln is the main equipment in the cement production process, and the kiln lining is the refractory material inlaid on the inner surface of the rotary kiln cylinder, and its function is to protect the cylinder from high temperature and erosion damage. Increasing the safe operation period of the rotary kiln is one of the main measures for increasing production and energy saving in the cement industry, and the performance of the kiln lining refractory material has a great influence on the length of the operation period of the rotary kiln. [0003] Cement rotary kiln refractory bricks generally use the method of reducing porosity to reduce the erosion of alkali, chlorine, sulfur and the penetration of cement clinker (the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/66
CPCC04B35/66C04B2235/3463C04B2235/3244C04B2235/349C04B2235/602C04B2235/6567C04B2235/6562C04B2235/661C04B2235/77C04B2235/96C04B2235/9607
Inventor 张积礼康剑马淑龙马飞朱凌云高长贺周新功倪高金张海波
Owner TONGDA REFRACTORY TECH CO LTD
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