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A kind of anorthite intermediate used as high temperature insulation material for industrial kilns

A high-temperature thermal insulation material, anorthite technology, applied in the field of anorthite thermal insulation materials and anorthite intermediates, can solve the constraints on the application and promotion of anorthite thermal insulation materials, high production costs, and factory occupation Large and other problems, to achieve the effect of improving thermal shock stability, short cycle time, and less factory occupation

Active Publication Date: 2017-03-22
莱州明发隔热材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing production technologies all use high-purity raw materials, and undergo processes such as grinding, water mixing, foaming, solidification, drying, firing, and grinding. There are many production processes, long cycles, and high energy consumption. The large site and large investment in equipment lead to high production costs and high volume density, which seriously restricts the application and promotion of anorthite thermal insulation materials

Method used

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  • A kind of anorthite intermediate used as high temperature insulation material for industrial kilns

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Get 210 g of aluminum silicate fiber and disperse it with a large amount of water to remove excess water to obtain 900 g of aluminum silicate fiber slurry, then add 1772 g of calcium silicate synthetic slurry as calcium silicate synthetic material (solid content 8.1 %, the same below, dry weight 143.5g), to obtain a mixed solution.

[0029] After stirring 210 g of calcium aluminate cement, 210 g of wollastonite, 210 g of burnt gemstone, 140 g of kyanite, and 140 g of cellulose, they were added together in the mixed solution, and finally 435 g of liquid silica sol (solid matter Content 32%, the same below, dry weight 139.2 g), stirred evenly, pressurized and dried above 100°C.

Embodiment 2

[0031] Get 420 g of aluminum silicate fiber and disperse it with a large amount of water to remove excess water to obtain 1800 g of aluminum silicate fiber slurry, then add 3444 g of calcium silicate synthetic slurry (dry weight 279.0 g) as calcium silicate synthetic material ) to obtain a mixture.

[0032] Stir 308 g of calcium aluminate cement, 252 g of coke gemstones, and 140 g of cellulose, and then add them together to the mixed solution, and finally add 435 g of silica sol (dry weight 139.2 g), stir evenly, and press to form, 100 Dry above ℃.

Embodiment 3

[0034] Take 280 g of aluminum silicate fiber, disperse it with a large amount of water and remove the excess water to obtain 1000 g of aluminum silicate fiber slurry, and then add 1772 g of calcium silicate synthetic slurry (dry weight 143.5 g) as calcium silicate synthetic material , to obtain a mixture.

[0035] 140 g of calcium aluminate cement, 210 g of wollastonite, 280 g of burnt gemstone, 210 g of aluminum hydroxide powder, and 2 g of polyacrylamide were stirred evenly, and then added to the mixed solution together, and finally 435 g of silica sol ( Dry weight 139.2 g), stir evenly, press molding, and dry above 100°C.

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Abstract

The invention relates to an anorthite intermediate used as an industrial kiln high-temperature heat-insulating material. A calcium silicate material, an aluminum silicate material, other aluminum-containing and / or calcium-containing materials, and the like are adopted as raw materials. Silica sol and cellulose or / and polyacrylamide are adopted as binding agents. The anorthite intermediate is prepared by adding water, mixing, performing compression molding and drying. The anorthite intermediate has good mechanical strength and heat insulating performance, can be converted into anorthite resisting to higher temperatures by reactions in a using environment with high temperatures of an industrial kiln, and can resist a temperature of 1200 DEG C.

Description

technical field [0001] The invention relates to an anorthite intermediate used as a high-temperature heat-insulation material for industrial kilns, which is transformed into an anorthite heat-insulation material with a higher heat-resistant temperature through a higher temperature reaction during use. It is mainly used for heat insulation and heat preservation of the lining of industrial kilns, and belongs to the field of heat preservation and energy-saving materials. Background technique [0002] In order to reduce heat loss, save energy, and meet the needs of special high-temperature parts of industrial kilns, the market urgently needs a thermal insulation material with high temperature resistance, high strength, and good durability. As an alternative known material, the maximum operating temperature of calcium silicate boards on the market is 1050°C, which cannot meet the temperature requirements; some aluminum silicate fiberboards have high temperature resistance grades,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/66
Inventor 孙祥云李伟国于祥旭周季婻刘卫斌毛战红张甡
Owner 莱州明发隔热材料有限公司
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