Fire resistant material for furnace wall mouth of nonferrous smelting furnace and preparing method thereof

A technology of refractory materials and furnaces, applied in the field of refractory materials, can solve the problems of easy damage to the internal structure of refractory materials, and achieve the effects of reducing related thermal reactions, avoiding reaction damage, and reducing decomposition reactions

Active Publication Date: 2019-04-12
中钢洛耐科技服份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But the CuO-Cu formed by CuO 2 The O redox system will continue to react inside the r...

Method used

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  • Fire resistant material for furnace wall mouth of nonferrous smelting furnace and preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] 90 parts of fused chromium corundum and 5 parts of chromium oxide are composed according to the particle size. According to the principle of first coarseness and then fineness, first dry blend in a wet mill. After the particles and fine powder are mixed evenly, add 90 parts of fused chromium corundum and 5 parts A mixture of white aleurone blended liquid and water with a mass ratio of 7:3 is pressed at a pressure of 400T to form brick adobes, and the resulting brick adobes are placed in a dryer and dried at 200°C for 48 hours.

Embodiment 2

[0030] 92 parts of fused chromium corundum and 6 parts of chromium oxide are composed according to the particle size. According to the principle of first coarseness and then fineness, first dry mix in a wet mill, and after the particles and fine powder are mixed evenly, add 5 parts with a mass ratio of 7:3 The mixture binder of white aleur powder blending liquid and water is pressed at a pressure of 480T to form brick adobes, and the obtained brick adobes are placed in a dryer and dried for 48 hours at a temperature of 250°C.

Embodiment 3

[0032] 94 parts of fused chromium corundum and 7 parts of chromium oxide are composed according to the particle size. According to the principle of first coarseness and then fineness, first dry blend in a wet mill, and after the particles and fine powder are mixed evenly, add 5.5 parts. The mass ratio is 7:3 The mixture binder of white aleur powder blending liquid and water is pressed at a pressure of 500T to form brick adobes, and the obtained adobes are placed in a dryer and dried at a temperature of 240°C for 48 hours.

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Abstract

The invention discloses a fire resistant material for a furnace wall mouth of a nonferrous smelting furnace. The fire resistant material is suitable for a furnace wall mouth position of the nonferroussmelting furnace and is prepared from electric smelting chromium corundum, chrome oxide and a gel binder. According to the fire resistant material, the electric smelting chromium corundum and the chrome oxide serve as raw materials, the content of MgO is reduced, so that related MgO dissolution and subsequent decomposition reactions which occur in the fire resistant material are greatly reduced,related thermal reactions are reduced, and the situation is avoided that the structure of the fire resistant material is damaged by frequent reactions. Due to the electric smelting chromium corundum,the fire resistant material is good in high-temperature performance, thermal vibration stability and corrosion resistance. Due to the chrome oxide, the penetration resistance of the fire resistant material is good.

Description

technical field [0001] The invention relates to the technical field of refractory materials, in particular to a refractory material for furnace wall ports of non-ferrous smelting melting furnaces and a preparation method thereof. Background technique [0002] my country is a big producer of non-ferrous metals. With the rapid development of my country's transportation, energy, construction, electromechanical, communications, automobiles, household appliances, etc., and my country's neighboring countries such as Japan and South Korea with poor resources need to import a large amount of non-ferrous metals, various types Composite materials, alloys, ultra-thin copper plates, pipes and chemical products have a wide range of domestic and foreign markets, and the production capacity continues to expand, resulting in a series of problems such as: aging technology, outdated equipment, high energy consumption, high cost, serious environmental pollution, Problems such as shortage of mine...

Claims

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Application Information

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IPC IPC(8): C04B35/101
CPCC04B35/101C04B2235/3241C04B2235/9607
Inventor 张利新廖绍虎刘萍邓俊杰杨建华李婉婉
Owner 中钢洛耐科技服份有限公司
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