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Fireproof coal ash heat insulation material and preparation method thereof

A technology of fire prevention and heat preservation and fly ash, which is applied in the field of building heat preservation materials, can solve the problems of great difference in quality of rock wool, unsatisfactory heat preservation effect, high construction requirements, etc., achieve superior flame retardant and smoke prevention effects, and reduce volatile A small amount of toxic and harmful gases, the effect of improving the heat resistance and flame retardant effect

Inactive Publication Date: 2017-11-21
HEFEI GUANGMIN BUILDING MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Polystyrene foam plastic board (EPS and XPS) is made of polystyrene resin as the main raw material and foamed by a foaming agent. It is a material with numerous closed micropores inside. Low rate, high mechanical strength, high dimensional accuracy, but poor fireproof performance; rock (mineral) wool and glass wool are sometimes collectively referred to as mineral wool, which is an inorganic material; rock wool does not burn, has high hygroscopicity, and low price. Thermal insulation performance also has a certain sound insulation effect, but the quality of rock wool varies greatly, the tensile strength is low, the durability is poor, and the thermal insulation effect is poor; the rubber powder polystyrene particle thermal insulation slurry has good flame retardancy, Recycling of waste products, but the insulation effect is not ideal, and the construction requirements are high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A kind of fly ash fire-proof and thermal insulation material of the present embodiment comprises the following raw materials in parts by weight:

[0042] 15 parts of compressed fly ash, 20 parts of acidified fly ash, 10 parts of water glass, 12 parts of adsorption filling soil, 5 parts of coupling agent, 15 parts of binder, 9 parts of glass beads, 8 parts of reinforcing fiber, flame retardant Addition 7 parts.

[0043]The preparation method of the compressed fly ash in this embodiment is: add the fly ash, rosin, polyvinyl alcohol, and diisocyanate into the mixer according to the weight ratio of 30:3:1:0.1 and stir, and then send them into the tablet press and compress into Flakes, the thickness of the flakes is 2-4 mm.

[0044] The preparation method of acidified fly ash in this embodiment is: mix fly ash and 5% dilute sulfuric acid solution according to the weight ratio of 5:1 and add them to a high-speed mixer, stir evenly, and squeeze the stirred mixture through a p...

Embodiment 2

[0059] A kind of fly ash fire-proof and thermal insulation material of the present embodiment comprises the following raw materials in parts by weight:

[0060] 25 parts of compressed fly ash, 40 parts of acidified fly ash, 14 parts of water glass, 18 parts of adsorption filling soil, 7 parts of coupling agent, 25 parts of binder, 13 parts of glass beads, 16 parts of reinforcing fiber, flame retardant Addition 11 parts.

[0061] The preparation method of the compressed fly ash in this embodiment is: add the fly ash, rosin, polyvinyl alcohol, and diisocyanate into the mixer according to the weight ratio of 30:3:1:0.1 and stir, and then send them into the tablet press and compress into Flakes, the thickness of the flakes is 4mm.

[0062] The preparation method of acidified fly ash in this embodiment is: mix fly ash and 5% dilute sulfuric acid solution according to the weight ratio of 5:1 and add them to a high-speed mixer, stir evenly, and squeeze the stirred mixture through a ...

Embodiment 3

[0077] A kind of fly ash fire-proof and thermal insulation material of the present embodiment comprises the following raw materials in parts by weight:

[0078] 20 parts of compressed fly ash, 30 parts of acidified fly ash, 12 parts of water glass, 15 parts of adsorption filling soil, 6 parts of coupling agent, 20 parts of binder, 11 parts of glass microspheres, 12 parts of reinforcing fiber, flame retardant Addition 9 parts.

[0079] The preparation method of the compressed fly ash in this embodiment is: add the fly ash, rosin, polyvinyl alcohol, and diisocyanate into the mixer according to the weight ratio of 30:3:1:0.1 and stir, and then send them into the tablet press and compress into Flakes, the thickness of the flakes is 3mm.

[0080] The preparation method of acidified fly ash in this embodiment is: mix fly ash and 5% dilute sulfuric acid solution according to the weight ratio of 5:1 and add them to a high-speed mixer, stir evenly, and squeeze the stirred mixture thro...

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Abstract

The invention discloses a fireproof coal ash heat insulation material which comprises, by weight, 15-25 parts of compressed coal ash, 20-40 parts of acidified coal ash, 10-14 parts of water glass, 12-18 parts of adsorption filling soil, 5-7 parts of coupling agents, 15-25 parts of adhesives, 9-13 parts of glass beads, 8-16 parts of reinforced fibers and 7-11 parts of flame-retardant additives. The coal ash is comprehensively recycled, resources are saved, environments are protected, waste is sufficiently used, the prepared heat insulation material is low in specific gravity, high in strength, good in heat insulation performance, excellent in high-temperature resistance and flame resistance and good in stability. Besides, the preparation method is low in material cost and simple and clear in process and has a high practical value and a good application prospect, and raw materials are easily obtained.

Description

technical field [0001] The invention relates to the technical field of building thermal insulation materials, in particular to a fly ash fireproof thermal insulation material and a preparation method thereof. Background technique [0002] On the one hand, fly ash is the fine ash collected from the flue gas after coal combustion. Fly ash is the main solid waste discharged from coal-fired power plants. Fly ash is one of the industrial wastes with large discharge volume in my country. With the development of the power industry, the discharge of fly ash from coal-fired power plants is increasing 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 chemicals in it will also cause harm to humans and organisms. [0003] At present, fly ash is mainly used to build roads, fly ash steamed bricks, fly ash clay sintered bricks, fly ash aerated con...

Claims

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Application Information

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IPC IPC(8): C04B28/26C04B18/08C04B111/28
CPCC04B18/08C04B28/26C04B2111/28C04B14/106C04B14/102C04B14/104C04B24/42C04B14/062C04B24/2641C04B24/281C04B14/22C04B14/42C04B16/0625C04B14/386C04B22/066C04B22/06C04B24/005C04B18/082C04B14/324C04B18/02Y02W30/91
Inventor 黄洋
Owner HEFEI GUANGMIN BUILDING MATERIAL CO LTD
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