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High-strength lightweight refractory material and preparation method thereof

A light-weight refractory material and high-strength technology, applied in the field of refractory material manufacturing, can solve the problems of low mechanical strength, inability to be used for load bearing, poor wear resistance, etc., and achieve low volume density, high compressive strength, and large porosity Effect

Inactive Publication Date: 2017-02-01
CHANGXING SHENGHUA REFRACTORIES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, lightweight refractory materials also have low mechanical strength, cannot be used for load bearing, and their wear resistance is also poor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A high-strength light-weight refractory material, prepared from the following raw materials in parts by weight: 600 parts of fly ash, 60 parts of aluminum oxide, 90 parts of calcium carbonate, 50 parts of magnesium carbonate, 10 parts of sodium carbonate, 15 parts of titanium oxide, 20 parts of zirconium, 8 parts of zinc oxide, 6 parts of bismuth oxide, 400 parts of pore-forming agent; the purity of alumina is 95wt%; the content of alumina in fly ash is 30wt%, and the content of silicon oxide is 40wt%;

[0032] Wherein, the pore forming agent is composed of the following raw materials in parts by weight: 20 parts of glucose, 10 parts of fructose, 45 parts of polyethylene microspheres, 30 parts of perlite, 20 parts of expanded vermiculite, and 35 parts of alum.

[0033]A method for preparing a high-strength lightweight refractory material, comprising the following steps:

[0034] a) Add absolute ethanol twice the weight of the raw materials except the pore-forming agent ...

Embodiment 2

[0039] A high-strength light-weight refractory material, prepared from the following raw materials in parts by weight: 650 parts of fly ash, 70 parts of aluminum oxide, 100 parts of calcium carbonate, 55 parts of magnesium carbonate, 15 parts of sodium carbonate, 17 parts of titanium oxide, 22 parts of zirconium, 9 parts of zinc oxide, 7 parts of bismuth oxide, 450 parts of pore-forming agent; the purity of alumina is 97wt%; the content of alumina in fly ash is 35wt%, and the content of silicon oxide is 45wt%;

[0040] Wherein, the pore forming agent is composed of the following raw materials in parts by weight: 20 parts of glucose, 11 parts of fructose, 50 parts of polyethylene microspheres, 35 parts of perlite, 25 parts of expanded vermiculite and 40 parts of alum.

[0041] A method for preparing a high-strength lightweight refractory material, comprising the following steps:

[0042] a) Add anhydrous ethanol 2.2 times the weight of the raw materials except the pore-forming ...

Embodiment 3

[0047] A high-strength light-weight refractory material, prepared from the following raw materials in parts by weight: 700 parts of fly ash, 80 parts of aluminum oxide, 110 parts of calcium carbonate, 60 parts of magnesium carbonate, 20 parts of sodium carbonate, 20 parts of titanium oxide, 25 parts of zirconium, 10 parts of zinc oxide, 8 parts of bismuth oxide, 500 parts of pore-forming agent; the purity of alumina is 99wt%; the content of alumina in the fly ash is 40wt%, and the content of silicon oxide is 50wt%;

[0048] Wherein, the pore forming agent is composed of the following raw materials in parts by weight: 20 parts of glucose, 12 parts of fructose, 55 parts of polyethylene microspheres, 40 parts of perlite, 30 parts of expanded vermiculite, and 45 parts of alum.

[0049] A method for preparing a high-strength lightweight refractory material, comprising the following steps:

[0050] a) Add absolute ethanol 2.5 times the weight of the raw materials except the pore-for...

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Abstract

The invention discloses a high-strength lightweight refractory material and a preparation method thereof. The refractory material is prepared from raw materials such as pulverized coal ash, aluminum oxide, calcium carbonate, magnesium carbonate, sodium carbonate, titanium oxide, zirconium oxide, zinc oxide, bismuth oxide and a pore forming agent, wherein the pore forming agent is prepared from ingredients such as glucose, fructose, polyethylene microspheres, pearlite, expanded vermiculite and alum. The lightweight refractory material is prepared through the processing steps of sequentially carrying out ball-milling wet mixing, carrying out forming, carrying out sintering and carrying out aftertreatment. The lightweight refractory material disclosed by the invention has relatively low bulk density and relatively high porosity, has relatively high workable temperature and relatively high compressive strength, further has relatively low heat conductivity and has a good heat insulation action.

Description

technical field [0001] The invention relates to the technical field of refractory material manufacturing, in particular to a high-strength lightweight refractory material and a preparation method thereof. Background technique [0002] In the traditional sense, refractory materials refer to inorganic non-metallic materials with a refractoriness of not less than 1580 °C. And parts of the material, and can withstand the corresponding physical and chemical changes and mechanical action. [0003] Most refractory materials are made of natural ores (such as refractory clay, silica, magnesite, dolomite), and some industrial raw materials and synthetic raw materials (such as industrial alumina, silicon carbide, synthetic mullite, Synthetic spinel, etc.) are also increasing, so there are many types of refractory materials. According to the mineral composition, refractories can be divided into silica, aluminum silicate, magnesia, dolomite, olivine, spinel, carbonaceous, zirconium-con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/66C04B35/626C04B38/02C04B38/08C04B41/91
CPCC04B35/66C04B35/62204C04B35/6261C04B38/08C04B41/5353C04B41/91C04B2235/3201C04B2235/3206C04B2235/3208C04B2235/3217C04B2235/3232C04B2235/3244C04B2235/3284C04B2235/3298C04B2235/77C04B2235/96C04B2235/9607C04B38/02C04B38/0074C04B38/0067
Inventor 佘培华佘文浩
Owner CHANGXING SHENGHUA REFRACTORIES CO LTD
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