Coal spontaneous combustion preventing inhibition foam material and preparation method thereof

A foam material and coal spontaneous combustion technology, applied in dust prevention, mining equipment, earthwork drilling and mining, etc., can solve problems such as potential safety hazards, achieve the effects of increasing efficiency, reducing the probability of ignition, and being easy to use

Active Publication Date: 2015-07-01
ANHUI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, the patent application No. 200910116090.X discloses a composite resistance foam material composed of chemical resistance agent and physical resistance agent. This composite resistance foam material has good fluidity and can cover more uniformly when applied The surface of the coal body has a high resistance to coal, which can achieve the effect of preventing coal spontaneous combustion for a long time, but this kind of resistance foam material contains oxidants, which has certain safety hazards

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Will account for system gross mass 0.5% fatty acid methyl ester sulfonate, 0.2% cocamidopropyl betaine, 0.02% polyacrylamide, 0.5% calcium chloride, 2.5% montmorillonite, Add 96.28% of water into the mixer, fully stir and mix until uniform, and then obtain a chemical retarding foam material for preventing and controlling coal spontaneous combustion of the present invention.

Embodiment 2

[0019] Will account for system total mass 5.25% fatty acid methyl ester sulfonate, 1.6% cocamidopropyl betaine, 0.03% polyacrylamide, 2.75% calcium chloride, 8.75% montmorillonite, Add 81.62% of water into the mixer, fully stir and mix until uniform, and obtain a chemical retarding foam material for preventing spontaneous combustion of coal of the present invention.

Embodiment 3

[0021] Will account for system gross mass 10% fatty acid methyl ester sulfonate, 3% cocamidopropyl betaine, 0.5% polyacrylamide, 5% calcium chloride, 15% montmorillonite, Add 66.5% of water into the mixer, fully stir and mix until uniform, and obtain a chemical retardation foam material for preventing and controlling coal spontaneous combustion of the present invention.

[0022] If the fatty acid methyl ester sulfonate in the above example is replaced by fatty alcohol polyoxyethylene ether sodium sulfate, alkyl glycoside, fatty acid methyl ester sulfonate, SS-161, GNS, sodium α-alkenyl sulfonate, lauryl alcohol One or more of potassium ether phosphate, replace cocamidopropyl betaine with one or more of lauryl dimethyl amine oxide, cocamidopropyl betaine, polypropylene Amide is replaced by one or more of polyacrylamide, carboxymethyl cellulose, and carboxymethyl starch, and calcium chloride is replaced by one or more of calcium chloride, magnesium chloride, and sodium chloride....

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PUM

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Abstract

The invention discloses a coal spontaneous combustion preventing inhibition foam material and a preparation method thereof. The coal spontaneous combustion preventing inhibition foam material belongs to the technical field of coal mine underground coal spontaneous combustion treatment. The coal spontaneous combustion preventing inhibition foam material is characterized by comprising, by weight percentage, 0.5-10% of foaming agent, 0.2-3% of foaming auxiliaries, 0.02-0.5% of thickener, 0.5-5% of inhibitor, 2.5-15% of enhancer and 66.5-96.28% of water. After being foamed, the coal spontaneous combustion preventing inhibition foam material can take foam as the carrier to effectively convey the target inhibitor and enhancer to areas complicated to handle, and generated inhibiting foam achieves multiple oxygen insulating inhibition effects on coal spontaneous combustion and further achieves the aim of preventing coal spontaneous combustion.

Description

technical field [0001] The invention belongs to the technical field of underground coal spontaneous combustion control in coal mines, and in particular relates to a chemical-resistance foam material for preventing and controlling coal spontaneous combustion and a preparation method thereof. Background technique [0002] In the process of coal mining, the coal seam prone to spontaneous combustion is crushed and exposed to air, and oxidized at room temperature, generating heat to raise its temperature. If it is not treated in time, it will lead to spontaneous combustion of the coal body. Spontaneous combustion of coal has been threatening the safety of coal production and storage, not only causing the loss of coal resources, but even triggering mine gas explosions or underground fires, causing casualties and huge property losses. There are many types of coal with a low degree of coalification in my country, and the probability of coal spontaneous combustion fires in mines is r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21F5/06
CPCE21F5/06
Inventor 聂士斌周灿方诗娴王德义李本侠高飞
Owner ANHUI UNIV OF SCI & TECH
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