Preparation method of anti-erosion silicon brick

A silicon mullite brick and corrosion-resistant technology, applied in the field of refractory materials, can solve the problems of high thermal conductivity and high equipment temperature of silicon mullite bricks, and achieve the effects of light bulk density, low thermal conductivity, and strong acid and alkali resistance.

Inactive Publication Date: 2019-03-15
无锡远能耐火材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, although silica molybdenum has many advantages, it also has disadvantages.
Among them, the biggest problem is that the thermal conductivity of silica bricks is too high, which can easily cause the equipment temperature to be too high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A method for preparing an anti-corrosion silica brick, comprising the following steps:

[0019] (1) Prepare the raw materials according to the formula, pour them into the mixer, stir the dry ingredients for 10 minutes, add 5 parts of water, and stir for another 10-15 minutes;

[0020] The raw materials include the following parts by weight: 55 parts of high alumina bauxite clinker, 8 parts of silicon oxide micropowder, 12 parts of silicon carbide powder, 8 parts of andalusite powder, 4 parts of nano-scale metal aluminum powder, 12 parts of Binding agent;

[0021] Wherein, the high-alumina clinker includes high-alumina clinker with a particle size of 1 to 3mm, high-alumina clinker with a particle size greater than 3mm, high-alumina clinker and high-alumina clinker. The mass ratio of bauxite clinker to coarse material is 1:3.

[0022] The fineness of the silicon carbide powder and andalusite powder is not more than 200 mesh.

[0023] The binder is composed of the follo...

Embodiment 2

[0030] A method for preparing an anti-corrosion silica brick, comprising the following steps:

[0031] (1) Prepare the raw materials according to the formula, pour them into the mixer, stir the dry ingredients for 10 minutes, add 4 parts of water, and stir for another 15 minutes;

[0032] The raw materials include the following parts by weight: 63 parts of high alumina bauxite clinker, 9 parts of silicon oxide micropowder, 10 parts of silicon carbide powder, 8 parts of andalusite powder, 3 parts of nano-scale metal aluminum powder, 12 parts of Binding agent;

[0033] Wherein, the high-alumina clinker includes high-alumina clinker with a particle size of 1 to 3mm, high-alumina clinker with a particle size greater than 3mm, high-alumina clinker and high-alumina clinker. The mass ratio of bauxite clinker to coarse material is 1:2.

[0034] The fineness of the silicon carbide powder and andalusite powder is not more than 200 mesh.

[0035] The binder is composed of the followin...

Embodiment 3

[0042] A method for preparing an anti-corrosion silica brick, comprising the following steps:

[0043] (1) Prepare the raw materials according to the formula, pour them into the mixer, stir the dry ingredients for 5-10 minutes, add 2-5 parts of water, and stir for 10-15 minutes;

[0044] The raw materials include the following parts by weight: 58 parts of high alumina bauxite clinker, 10 parts of silicon oxide micropowder, 12 parts of silicon carbide powder, 9 parts of andalusite powder, 4 parts of nano-scale metal aluminum powder, 11 parts of Binding agent;

[0045] Wherein, the high-alumina clinker includes high-alumina clinker with a particle size of 1 to 3mm, high-alumina clinker with a particle size greater than 3mm, high-alumina clinker and high-alumina clinker. The mass ratio of bauxite cooked coarse material is 1:4.

[0046] The fineness of the silicon carbide powder and andalusite powder is not more than 200 mesh.

[0047] The binder is composed of the following ra...

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Abstract

The invention belongs to the technical field of refractory materials, and specifically relates to a preparation method of an anti-erosion silicon brick. According to the preparation method, dry raw materials are prepared and stirred according to a formula, and water is added for stirring, wherein the raw materials comprise high-alumina bauxite clinker, silicon oxide micropowder, silicon carbide powder, andalusite powder, nano-sized metal aluminum powder and a binder; the mixed materials after trapping are pressed into a brick blank by a high pressure press; and the dried brick blank is sent toa tunnel kiln for firing. The preparation method of the anti-erosion silicon brick has the characteristics of abrasion resistance, flaking resistance, strong acid and alkali resistance and excellentthermal stability, is small in thermal conductivity and light bulk density, and can reduce the temperature outside a cylinder; and the preparation method of the silicon brick is scientific and simple,free of pollution in the implementation process and suitable for industrial promotion.

Description

technical field [0001] The invention belongs to the technical field of refractory materials, and in particular relates to a preparation method of an anti-corrosion silica molybdenum brick. Background technique [0002] Silica brick has the advantages of strong high temperature resistance, wear resistance, corrosion resistance and good thermal conductivity. Today, silica brick has become an ideal choice for cement rotary kiln. However, although silica molybdenum has many advantages, it also has disadvantages. Among them, the biggest problem is that the thermal conductivity of silica bricks is too high, which can easily cause the temperature of the equipment to be too high. Contents of the invention [0003] The object of the present invention is to provide a preparation method of anti-corrosion silica molybdenum bricks aiming at the deficiencies of the prior art. To achieve the above object, the technical solution adopted in the present invention is: [0004] A method fo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/66C04B35/185C04B35/622C04B35/63C04B35/634
CPCC04B35/185C04B35/622C04B35/6303C04B35/6309C04B35/63416C04B35/66C04B2235/3217C04B2235/3418C04B2235/3463C04B2235/3826C04B2235/402C04B2235/9623C04B2235/9692
Inventor 罗佳李淑静姚伯洪姚英俞江
Owner 无锡远能耐火材料有限公司
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