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Fused zirconia corundum brick and its preparation method

A technology of zirconium corundum brick and electrofusion, which is applied in the field of refractory materials, can solve the problems of poor corrosion resistance to glass liquid, reduce the economic benefits of enterprises, increase the maintenance amount of kilns, etc., achieve environmental pollution, reduce maintenance amount, and improve product quality. Good results

Active Publication Date: 2022-05-17
山东金三河新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The refractory materials used on the glass furnace wall generally have the disadvantages of short service life, poor resistance to glass liquid erosion, more glass phase exudation, and poor thermal shock resistance, which increases the maintenance of the furnace and reduces the economic benefit of the enterprise

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The fused zirconia corundum brick described in Example 1, in parts by weight, has the following raw material composition: 35 parts of Australian zircon sand, 12 parts of waste fused zirconia corundum brick, 45 parts of industrial alumina powder, and 1.1 parts of sodium carbonate. 2.5 parts of borax, 5 parts of fused aluminum-magnesium spinel, 10 parts of fused mullite, 3 parts of silicon carbide, and 1 part of cerium oxide.

[0027] in:

[0028] Waste fused zirconia corundum bricks are crushed into powder, and the particle size is controlled at 500 mesh.

[0029] The particle size of fused aluminum magnesium spinel is controlled at 300 mesh; the particle size of fused mullite is controlled at 350 mesh.

[0030] The chemical composition of Australian zircon sand is: ZrO 2 65%, SiO 2 33%, and the balance is impurities.

[0031] The chemical composition of waste fused zirconia corundum bricks is: Al 2 o 3 48%, ZrO 2 41%, SiO 2 10%, Na 2 O 0.7%, Fe 2 o 3 0....

Embodiment 2

[0043] The fused zirconia corundum brick described in Example 2, in parts by weight, has the following raw material composition: 38 parts of Australian zircon sand, 15 parts of waste fused zirconia corundum brick, 48 parts of industrial alumina powder, 1.3 parts of sodium carbonate 2.0 parts of borax, 6.5 parts of fused alumina-magnesium spinel, 13 parts of fused mullite, 4 parts of silicon carbide, and 1.5 parts of cerium oxide.

[0044] in:

[0045] Waste fused zirconia corundum bricks are crushed into powder, and the particle size is controlled at 550 mesh.

[0046] The particle size of fused aluminum magnesium spinel is controlled at 400 mesh; the particle size of fused mullite is controlled at 350 mesh.

[0047] The chemical composition of Australian zircon sand is: ZrO 2 65%, SiO 2 33%, and the balance is impurities.

[0048] The chemical composition of waste fused zirconia corundum bricks is: Al 2 o 3 48%, ZrO 2 41%, SiO 2 10%, Na 2 O 0.7%, Fe 2 o 3 0.1...

Embodiment 3

[0060] The fused zirconia corundum brick described in Example 3, in parts by weight, has the following raw material composition: 40 parts of Australian zircon sand, 10 parts of waste fused zirconia corundum brick, 50 parts of industrial alumina powder, and 1.5 parts of sodium carbonate. 3 parts, 3 parts of borax, 8 parts of fused aluminum-magnesium spinel, 8 parts of fused mullite, 3.5 parts of silicon carbide, and 2 parts of cerium oxide.

[0061] in:

[0062] Waste fused zirconia corundum bricks are crushed into powder, and the particle size is controlled at 600 mesh.

[0063] The particle size of fused aluminum magnesium spinel is controlled at 300 mesh; the particle size of fused mullite is controlled at 350 mesh.

[0064] The chemical composition of Australian zircon sand is: ZrO 2 65%, SiO 2 33%, and the balance is impurities.

[0065] The chemical composition of waste fused zirconia corundum bricks is: Al 2 o 3 48%, ZrO 2 41%, SiO 2 10%, Na 2 O 0.7%, Fe 2...

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Abstract

The invention belongs to the technical field of refractory materials, and in particular relates to an electric fused zirconium corundum brick and a preparation method thereof. In parts by weight, the raw materials are composed as follows: 35-40 parts of Australian zircon sand, 10-15 parts of waste fused zirconia corundum bricks, 45-50 parts of industrial alumina powder, 1.1-1.5 parts of sodium carbonate, 2-2 parts of borax 3 parts, 5-8 parts of fused aluminum-magnesium spinel, 8-13 parts of fused mullite, 3-4 parts of silicon carbide, and 1-2 parts of cerium oxide. The fused zirconia corundum brick of the present invention has excellent high temperature resistance, corrosion resistance and thermal shock resistance, greatly reduces the maintenance amount of the kiln, thereby improving the economic benefits of the enterprise; the fused zirconia corundum brick The preparation method adopts waste electric fused zirconia corundum bricks as raw materials, reduces the production cost, and has simple production process, reasonable parameter design, no pollution to the environment, and the prepared zirconia corundum bricks have good product quality.

Description

technical field [0001] The invention belongs to the technical field of refractory materials, and in particular relates to an electric fused zirconium corundum brick and a preparation method thereof. Background technique [0002] The fused zirconia corundum refractory bricks produced by the electric melting method are one of the important refractory materials for modern glass melting furnaces, and are currently the most widely used and most used refractory products in glass melting furnaces. It has good resistance to glass liquid erosion, rapid cooling and rapid heating, and high thermal load performance. It is used in various important parts of melting furnaces and has excellent corrosion resistance and erosion resistance. Its main component is ZrO 2 、Al 2 o 3 , SiO 2 , alkali and other impurities, minerally they are composed of corundum, baddeleyite, a small amount of mullite and glass phase. Because it is pure in nature and does not pollute the product, it is an indisp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/101
CPCC04B35/101C04B2235/3201C04B2235/3222C04B2235/3409C04B2235/3463C04B2235/3229C04B2235/3826C04B2235/666C04B2235/6565C04B2235/6567C04B2235/9607C04B2235/9669Y02P40/60
Inventor 李金仁
Owner 山东金三河新材料科技有限公司
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