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Environment-friendly fly ash insulating brick

A technology for fly ash and thermal insulation bricks, applied in the field of environmental protection fly ash thermal insulation bricks, can solve the problems of low brick body hardness, generation of dust, biological hazards, etc., and achieve the effects of low thermal conductivity, improved uniformity, and promotion of sintering

Inactive Publication Date: 2018-12-11
安徽建邦建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If a large amount of fly ash is not treated, it will generate dust and pollute the atmosphere; if it is discharged into the water system, it will cause river silting, and the toxic chemicals in it will also cause harm to humans and organisms
If fly ash is used to prepare wall insulation bricks, not only can the fly ash be effectively treated, the cost can be reduced, and it can be recycled, but the brick body has the problems of low hardness and poor antibacterial property

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] An environmentally friendly fly ash insulation brick, its raw materials include: 30kg of blast furnace slag, 200kg of cement, 1kg of diatomite, 20kg of calcium sulfate whiskers, 1kg of heavy calcium carbonate, 18kg of filler, 1kg of polyurethane resin, 2kg of organic amino alcohol, Anti-compression enhancer 60kg, sodium bicarbonate 1.2kg, water 100kg.

[0016] The filler is composed of gravel and talc powder in a weight ratio of 10:2; the anti-compression enhancer is composed of high-efficiency antibacterial agent, fly ash, calcined kaolin, weathered coal, and vermiculite powder in a weight ratio of 45:20:18:1:11 .

[0017] The high-efficiency antibacterial agent is prepared by the following process: Stir 18kg of zinc silicate powder and 100kg of a 1.2mol / L polyethylene glycol aqueous solution for 40min at a stirring speed of 50r / min, add 2.1kg of saturated copper sulfate solution under stirring, and continue stirring 2min, filter with suction, wash, dry at 90°C, put i...

Embodiment 2

[0019] An environmentally friendly fly ash insulation brick, its raw materials include: 60kg of blast furnace slag, 120kg of cement, 5kg of diatomite, 12kg of calcium sulfate whiskers, 3kg of heavy calcium carbonate, 6kg of filler, 3kg of polyurethane resin, 1kg of organic amino alcohol, Anti-compression enhancer 70kg, sodium bicarbonate 0.2kg, water 300kg.

[0020] The filler is composed of gravel and talc powder in a weight ratio of 4:8; the anti-compression enhancer is composed of high-efficiency antibacterial agent, fly ash, calcined kaolin, weathered coal, and vermiculite powder in a weight ratio of 23:50:10:10:3 .

[0021] The high-efficiency antibacterial agent is prepared by the following process: Stir 24kg of zinc silicate powder and 80kg of 1.9mol / L polyethylene glycol aqueous solution for 20min at a stirring speed of 120r / min, add 1.5kg of saturated copper sulfate solution under stirring, and continue stirring After 14 minutes, filter with suction, wash, dry at 82°...

Embodiment 3

[0023] An environmentally friendly fly ash insulation brick, its raw materials include: 40kg of blast furnace slag, 180kg of cement, 2kg of diatomite, 18kg of calcium sulfate whiskers, 1.5kg of heavy calcium carbonate, 16kg of filler, 1.5kg of polyurethane resin, organic amino alcohol 1.8kg, 64kg anti-compression enhancer, 1kg sodium bicarbonate, 150kg water.

[0024] The filler is composed of gravel and talc powder in a weight ratio of 8:4; the anti-compression enhancer is composed of high-efficiency antibacterial agent, fly ash, calcined kaolin, weathered coal, and vermiculite powder in a weight ratio of 42:30:16:2:8 .

[0025] The high-efficiency antibacterial agent is prepared by the following process: Stir 20kg of zinc silicate powder and 95kg of a 1.4mol / L polyethylene glycol aqueous solution for 35min at a stirring speed of 80r / min, add 1.9kg of saturated copper sulfate solution under stirring, and continue stirring 6min, filter with suction, wash, dry at 88°C, put int...

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PUM

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Abstract

The invention discloses an environment-friendly fly ash insulating brick, which is prepared from the following raw materials in parts by weight: 30 to 60 parts of blast furnace slag, 120 to 200 partsof cement, 1 to 5 parts of diatomaceous earth, 12 to 20 parts of calcium sulfate whisker, 1 to 3 parts of heavy calcium carbonate, 6 to 18 parts of a filler, 1 to 3 parts of polyurethane resin, 1 to 2parts of organic amine alcohol, 60 to 70 parts of an anti-pressure enhancer, 0.2 to 1.2 parts of sodium hydrogencarbonate and 100 to 300 parts of water. The anti-pressure enhancer is prepared from the following components in parts by weight: 23 to 45 parts of a high-efficiency antibacterial agent, 20 to 50 parts of fly ash, 10 to 18 parts of calcined kaolin, 1 to 10 parts of weathered coal, and 3to 11 parts of vermiculite powder. The high-efficiency antibacterial agent is prepared by the following process: stirring zinc silicate powder and a polyethylene glycol aqueous solution, adding a saturated copper sulfate solution under stirring, continuing to stir, performing suction filtration, washing, drying, feeding into a muffle furnace for heating, maintaining the temperature, cooling, andadding the polyethylene glycol to be granulated to obtain the high-efficiency antibacterial agent.

Description

technical field [0001] The invention relates to the technical field of thermal insulation bricks, in particular to an environmentally friendly fly ash thermal insulation brick. Background technique [0002] Fly ash is the fine ash collected from the flue gas after coal combustion. Fly ash is also the main solid waste discharged from coal-fired power plants. With the development of coal-fired power plants, the amount of fly ash emissions has increased year by year. If a large amount of fly ash is not treated, it will generate dust and pollute the atmosphere; if it is discharged into the water system, it will cause river silting, and the toxic chemical substances in it will also cause harm to humans and organisms. If fly ash is used to prepare wall insulation bricks, not only can the fly ash be effectively treated, the cost can be reduced, and it can be recycled. However, the brick body has the problems of low hardness and poor antibacterial property. Contents of the invent...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B18/02C04B14/30C04B14/04C04B111/20
CPCC04B18/022C04B18/023C04B28/00C04B2111/2092C04B2201/32C04B2201/50C04B18/141C04B14/08C04B14/383C04B14/28C04B14/06C04B14/042C04B24/282C04B24/122C04B18/08C04B14/106C04B14/022C04B14/202C04B22/106C04B14/309C04B14/04
Inventor 迟利山朱国庆
Owner 安徽建邦建材有限公司