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Erosion-resistant fused zirconia corundum brick for glass kiln and preparation method of erosion-resistant fused zirconia corundum brick

A glass kiln and zirconium corundum brick technology, applied in the field of refractory materials, can solve the problems of difficult industrialization, hindering material movement, and extremely high equipment requirements, and achieve a reasonable internal crystal phase structure, prolong service life, and high corrosion resistance. Effect

Active Publication Date: 2021-09-07
江苏徐耐新材料科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This process can effectively improve the uniformity of the material liquid components and avoid material streaks. However, in the melting process, the raw material needs to be heated by microwave before entering the furnace body, and the detection temperature of microwave heating is the surface temperature of the material, and there are some high-temperature places inside. There may be a liquid phase, and components with low melting points are easy to liquefy, and the liquid phase agglomeration hinders the movement of materials, and may also adhere to equipment, making production extremely demanding on equipment, making it difficult to implement industrialization

Method used

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  • Erosion-resistant fused zirconia corundum brick for glass kiln and preparation method of erosion-resistant fused zirconia corundum brick

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] An erosion-resistant fused zirconia corundum brick for a glass furnace, comprising the following components in mass percentage: 43.0% zircon sand, 51.0% alumina powder, 1.4% soda ash, 3.8% zirconia, 0.2% rare earth, andalusite powder 0.2%, hydroxypropyl methylcellulose 0.4%.

[0033] Its preparation method steps are as follows:

[0034]S1: Use computer 3D modeling sub-drawings to issue product mold drawings. The model workshop uses a foam cutting machine to make models according to the drawings, and the sand mold workshop makes sand molds through model sanding; sand molds use self-hardening sand technology to make reasonable blank processing. The casting workshop puts the sand mold into a special insulation box, fills it with hollow silicon-aluminum ball insulation material, and then uses a vibrator to vibrate the insulation material and wait for casting;

[0035] S2: After mixing zircon sand, alumina powder, zirconia, soda ash, and hydroxypropyl methylcellulose throug...

Embodiment 2

[0044] An erosion-resistant fused zirconia corundum brick for a glass furnace, comprising the following components in mass percentage: 41.0% zircon sand, 48% alumina powder, 2.0% soda ash, 5.9% zirconia, 0.7% rare earth, andalusite powder 0.8%, hydroxypropyl methylcellulose 1.6%.

[0045] Its preparation method steps are as follows:

[0046] S1: Use computer 3D modeling sub-drawings to issue product mold drawings. The model workshop uses a foam cutting machine to make models according to the drawings, and the sand mold workshop makes sand molds through model sanding; sand molds use self-hardening sand technology to make reasonable blank processing. The casting workshop puts the sand mold into a special insulation box, fills it with hollow silicon-aluminum ball insulation material, and then uses a vibrator to vibrate the insulation material and wait for casting;

[0047] S2: After mixing zircon sand, alumina powder, zirconia, soda ash, and hydroxypropyl methylcellulose through...

Embodiment 3

[0056] An erosion-resistant fused zirconia corundum brick for a glass furnace, which consists of the following components in mass percentage: 41.9% zircon sand, 49.4% alumina powder, 2.0% soda ash, 4.6% zirconia, 0.4% rare earth, andalusite Powder 0.6%, hydroxypropyl methylcellulose 1.1%.

[0057] Its preparation method steps are as follows:

[0058] S1: Use computer 3D modeling sub-drawings to issue product mold drawings. The model workshop uses a foam cutting machine to make models according to the drawings, and the sand mold workshop makes sand molds through model sanding; sand molds use self-hardening sand technology to make reasonable blank processing. The casting workshop puts the sand mold into a special insulation box, fills it with hollow silicon-aluminum ball insulation material, and then uses a vibrator to vibrate the insulation material and wait for casting;

[0059] S2: After mixing zircon sand, alumina powder, zirconia, soda ash, and hydroxypropyl methylcellulos...

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Abstract

The invention aims to provide an erosion-resistant fused zirconia corundum brick for a glass kiln and a preparation method of the erosion-resistant fused zirconia corundum brick, and the fused zirconia corundum brick provided by the invention is prepared from the following components in percentage by mass: 41.0 to 43.0 percent of zircon sand, 48.0 to 51.0 percent of alumina powder, 1.4 to 2.0 percent of sodium carbonate, 3.80 to 5.90 percent of zirconium oxide, 0.2 to 0.7 percent of rare earth, 0.2 to 0.8 percent of andalusite powder and 0.4 to 1.6 percent of hydroxypropyl methyl cellulose. By improving a product formula and a process technology, the content of silicon and sodium in the 33 # fused zirconia corundum brick can be greatly reduced, so that the content of a glass phase in the product is reduced, the crystal phase structure of the product is optimized, the corrosion resistance of the product in a glass kiln is improved, the service life can be remarkably prolonged, and a precipitated phase of the glass phase can be reduced; pollution of the product to molten glass in a glass kiln is reduced to a certain extent, the service life of the glass kiln is remarkably prolonged, and the quality of the glass product is remarkably improved.

Description

technical field [0001] The invention belongs to the technical field of refractory materials, and in particular relates to an erosion-resistant fused zirconia corundum brick for a glass kiln and a preparation method thereof. Background technique [0002] Fused zirconia corundum bricks are mainly used in glass furnaces. They have good resistance to glass liquid erosion, rapid cooling and rapid heating, and high thermal load performance. They are used in various important parts of melting furnaces. The excellent corrosion and erosion resistance of the bricks is due to their mineral composition and microstructure. However, with the upgrading of glass enterprises, the quality requirements for fused zirconia corundum bricks are more stringent, and the quality defects of fused zirconia corundum bricks will directly affect the quality of glass products and the service life of glass furnaces. [0003] Existing 33 # Fused zirconia corundum bricks are mainly used in the pool wall of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/66C04B35/10C03B5/43
CPCC04B35/66C04B35/10C03B5/43C04B2235/3248C04B2235/3201C04B2235/3244C04B2235/3224C04B2235/3463C04B2235/656C04B2235/6567C04B2235/66C04B2235/77
Inventor 张雪沈超群
Owner 江苏徐耐新材料科技股份有限公司
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