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Production method of electric smelting zircon corundum brick

A technology of zirconium corundum brick and production method, which is applied in the field of refractory materials, can solve the problems of complex production process, low yield rate, and difficult molding, and achieve the effect of simple operation and unique process

Active Publication Date: 2012-06-20
郑州远东耐火材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of the above situation, in order to overcome the defects of the prior art, the object of the present invention is to provide a production method of fused zirconia corundum bricks, which can effectively solve the difficulty of forming existing ultra-long, ultra-wide or ultra-thin or disproportionate bricks Large size, low yield and complicated production process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] 1. Ingredients, the raw material is composed of 30% clinker and 70% raw meal by weight percentage, wherein the clinker is composed of 1.3% sodium oxide, 33% zirconia, 15% silicon oxide and 50.7% aluminum oxide Mixed, particle size ≤ 20mm, the raw material is composed of 22% zircon sand, 60% calcined alumina powder, 17% desiliconized zirconium and 1% soda ash, used for clinker and raw material The mixer mixes evenly; 2. Electric furnace melting, pour into the electric furnace for melting, the melting temperature is 1900°C, the melting time is 65 minutes, blow oxygen twice during the melting process, the first time is 55 minutes after melting, blow oxygen for 2 minutes , continue to melt for 4 minutes after the first oxygen blowing, and then carry out the second oxygen blowing for 4 minutes, and the flow rate of each oxygen blowing is 25m3 / hour; 3. Pouring molding, pour the melted material liquid into the pre-made In a good sand mold, the mold is placed in an incubator, t...

Embodiment 2

[0011] 1. Ingredients, the raw materials are composed of 40% clinker and 60% raw meal by weight percentage, wherein the clinker is composed of 1.5% sodium oxide, 32% zirconia, 14% silicon oxide and 52.5% aluminum oxide Mixed, particle size ≤ 20mm, the raw material is composed of 24% zircon sand, 67% calcined alumina powder, 6% desiliconized zirconium and 3% soda ash, used for clinker and raw material 2. Furnace melting, pour into the electric furnace to melt, the melting temperature is 1915°C, the melting time is 67.5 minutes, blow oxygen twice during the melting process, the first time is 55 minutes after melting, blow oxygen for 2 minutes , continue to melt for 4 minutes after the first oxygen blowing, and then carry out the second oxygen blowing for 4 minutes, and the flow rate of each oxygen blowing is 25m3 / hour; 3. Pouring molding, pour the melted material liquid into the pre-made In a good sand mold, the mold is placed in an incubator, the pouring temperature is 1815°C, ...

Embodiment 3

[0013] 1. Ingredients, the raw material is composed of 50% clinker and 50% raw meal by weight percentage, wherein the clinker is composed of 1.6% sodium oxide, 32.4% zirconia, 16% silicon oxide and 50% aluminum oxide Made by mixing, the particle size is ≤20mm, and the raw material is composed of 50% zircon sand, 38% calcined alumina powder, 10% desiliconized zirconium and 2% soda ash, and is used for clinker and raw material. 2. Melt in an electric furnace, pour into an electric furnace to melt, the melting temperature is 1930°C, the melting time is 70 minutes, blow oxygen twice during the melting process, the first time is 55 minutes after melting, blow oxygen for 2 minutes , continue to melt for 4 minutes after the first oxygen blowing, and then carry out the second oxygen blowing for 4 minutes, and the flow rate of each oxygen blowing is 25m3 / hour; 3. Pouring molding, pour the melted material liquid into the pre-made In a good sand mold, the mold is placed in an incubator, ...

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Abstract

The invention relates to a production method of an electric smelting zircon corundum brick, which can solve the problem that over-length, over-width or over-thin or disproportionate brick materials are big in molding difficulties, low in finished product ratio and complex in productive technology. The production method is characterized in that raw materials by weight are 30-50% clinker and 50-70%raw batch. The clinker evenly mixed and made by materials by weight of 1.3-1.6% sodium oxide, 32-33% zirconia, 14-16% monox and 50-52.5%, the raw batch comprises raw materials by weight of 22-50% zircon sand, 38-67% calcine alumina powder, 6-20% desilicication zirconium and 1-3% soda ash. The raw materials are melted, oxygen is blew in a melting process, melted feed liquid is poured into a mould for molding for 10 minutes, an iron rod is communicated with the position at the upper 2 / 3 portion of the mould for discharging air, and then the brick is cooled and taken out. The production method is unique in process, simple in operation and convenient, and is an innovation on the production method of the electric smelting zircon corundum brick.

Description

technical field [0001] The invention relates to a refractory material, in particular to a production method of a 3.62-meter-long electric fused zirconium corundum brick used as a melting pool wall of a glass furnace. Background technique [0002] Fused zirconia corundum bricks have always been the material of choice for melting parts of glass furnaces and other parts in direct contact with molten glass due to their superior high temperature resistance, erosion resistance, and no pollution to molten glass. In the development of deep pools, the height of pool wall bricks is getting higher and higher. Due to its product characteristics, fused zirconia corundum products are affected by material properties and production processes during production. Therefore, for some special-shaped products, more than 3 measuring scales Ultra-wide, ultra-long, ultra-thin, disproportionate bricks are difficult to form, the yield rate is low, and the formed products are prone to defects. Among th...

Claims

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Application Information

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IPC IPC(8): C04B35/66
Inventor 龙沾卫赵长顺李万顺宁本荣
Owner 郑州远东耐火材料有限公司
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