A kind of refractory material for furnace wall port of non-ferrous smelting melting furnace and preparation method thereof

A refractory material and furnace technology, which is applied in the field of refractory materials, can solve the problems of easily destroying the internal structure of refractory materials, etc., and achieve the effects of avoiding frequent repairs, good corrosion resistance, and reduced decomposition reaction.

Active Publication Date: 2021-08-24
中钢洛耐科技服份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the CuO-Cu formed by CuO 2 The O redox system will continue to react inside the refractory material, which is easy to damage the internal structure of the refractory material

Method used

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  • A kind of refractory material for furnace wall port of non-ferrous smelting melting furnace and preparation 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 refractory material for the furnace wall opening of a nonferrous smelting melting furnace, which is suitable for the position of the furnace wall opening of a nonferrous smelting melting furnace. The refractory material is composed of fused chromium corundum, chromium oxide and gel binder. The invention uses fused chromium corundum and chromium oxide as raw materials, reduces the content of MgO, greatly reduces the dissolution of MgO in the refractory material and subsequent decomposition reactions, reduces related thermal reactions, and avoids frequent damage to the refractory material structure. ground reaction damage. Fused chromium corundum makes the refractory material have excellent high temperature performance, good thermal shock stability and good corrosion resistance. The addition of chromium oxide makes the refractory material resistant to penetration.

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, resource-poor countries 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 ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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