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Rock dust polymerization and moisture-preservation inhibitor for coal mines and adding device thereof

A technology of inhibitors and coal mines, applied in safety devices, dust prevention, mining equipment, etc., can solve the problems of difficulty in adding dust suppressants, poor dust suppression effect, large water consumption, etc., to prevent secondary dust, wetting Excellent performance and enhanced water retention capacity

Active Publication Date: 2015-04-22
SHANDONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing spray dust suppression methods have problems such as large water consumption, poor dust suppression effect, and difficulty in adding dust suppressants, which bring a lot of inconvenience to coal mine dust suppression.

Method used

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  • Rock dust polymerization and moisture-preservation inhibitor for coal mines and adding device thereof
  • Rock dust polymerization and moisture-preservation inhibitor for coal mines and adding device thereof
  • Rock dust polymerization and moisture-preservation inhibitor for coal mines and adding device thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Add 0.05g cocamidopropyl betaine, 0.05g magnesium chloride and 0.05g sodium fatty alcohol polyoxyethylene ether carboxylate to 99.85g water and allow to mix well.

Embodiment 2

[0037] Add 0.07g cocamidopropyl betaine, 0.07g magnesium chloride and 0.07g sodium fatty alcohol ethoxylate carboxylate to 99.79g water and allow to mix well.

Embodiment 3

[0039] Add 0.05g cocamidopropyl betaine, 0.07g magnesium chloride and 0.06g sodium fatty alcohol ethoxylate carboxylate to 99.82g water and allow to mix well.

[0040]Add the rock dust aggregate moisture inhibitor for coal mine configured in the above-mentioned embodiment 1, embodiment 2 or embodiment 3 into the adding device. First open the liquid inlet valve 5 and the exhaust valve 21, close the liquid discharge valve 6, and pour the coal mine rock dust coalescing moisturizing inhibitor into the leather bag 2 in the liquid storage tank 1 through the liquid inlet valve 5, and simultaneously the The air is exhausted by exhaust valve 21 . After the tank is full of rock dust for coal mines and aggregates the moisturizing inhibitor, close the liquid inlet valve 5 and the exhaust valve 21, open the liquid discharge valve 6, and open the water inlet and outlet side connecting the liquid storage tank 1 and the dust suppression water pipeline 9. The ball valve 19 allows the high-pre...

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Abstract

The invention discloses a rock dust polymerization and moisture-preservation inhibitor for coal mines and an adding device thereof. The rock dust polymerization and moisture-preservation inhibitor comprises the following components in percentage by weight: 0.05%-0.07% of cocamidopropyl betaine, 0.05%-0.07% of magnesium chloride, 0.05%-0.07% of sodium fatty alcohol polyoxyethylene ether carboxylate and the balance being water. The invention further provides an automatic adding device of the rock dust polymerization and moisture-preservation inhibitor for the coal mines. The cocamidopropyl betaine and the sodium fatty alcohol polyoxyethylene ether carboxylate have good wettability; after cocamidopropyl betaine and the sodium fatty alcohol polyoxyethylene ether carboxylate are compounded, the surface tension of water can be greatly reduced and the contact possibility of fog drops and dust particles is promoted; the magnesium chloride has a good moisture preservation performance so that the moisture preservation content of the captured dust particles is greatly enhanced, and a secondary dust raising phenomenon caused by water evaporation is prevented.

Description

technical field [0001] The invention relates to coal mine dust suppression, in particular to a coal mine rock dust coalescence moisture retention inhibitor and an adding device thereof. Background technique [0002] As one of the inevitable products in the coal production process, the high concentration of dust in the production site of the mining face seriously threatens the safe production of the mine and the physical and mental health of the miners. Especially with the improvement of comprehensive mechanization of coal mines, the problem of dust hazards has become more and more prominent. According to the actual measurement, the original dust concentration of the blasting face can reach 450 mg / m without any dust prevention measures in the coal mine rock excavation face in my country. 3 -600mg / m 3 Above, the original dust concentration of the whole-rock mechanized excavation working face can reach 1000mg / m 3 -1500mg / m 3 . Although the dust production on the driving fa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21F5/06E21F5/02C09K3/22
CPCC09K3/22E21F5/02E21F5/06
Inventor 周刚程卫民聂文陈连军崔向飞于岩斌王刚薛娇马有营徐翠翠王昊文金浩张磊于海明白若男
Owner SHANDONG UNIV OF SCI & TECH
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