Thickening type efficient foam dust-settling agent for coal mine excavation face

A mining surface and dust-reducing agent technology, applied in other chemical processes, chemical instruments and methods, etc., can solve the problems that respirable coal dust endangers the health of miners, and the effect of respirable coal dust is not obvious enough, so as to achieve good water solubility and improve Dust reduction efficiency and good working environment

Inactive Publication Date: 2020-08-07
SHANDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although these dust suppression technologies have effectively reduced the concentration of coal dust to a certain extent, the effect on respirable coal dust is not obvious enough, resulting in the fact that respirable coal dust still endangers the health of miners.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Take 8g of coconut oil diethanolamide, 0.3g of carboxymethyl cellulose, 1.5g of fatty alcohol polyoxyethylene ether glucoside and 2g of cationic polyacrylamide, add them into 988.2g of water, mix them fully and heat for a while to dissolve completely, and finally configure 1kg Foam dust suppressant. In the foam dust suppressant, the proportion of coconut oil diethanolamide is 0.8%, the proportion of carboxymethyl cellulose is 0.03%, the proportion of fatty alcohol polyoxyethylene ether glucoside is 0.15%, and the proportion of cationic polypropylene The proportion of amides is 0.2%. Add the prepared foam dust suppressant to the Roche foam generator to generate a foam height of 886.34mL, and increase the mass of the foam dust suppressant by 100 times to prepare a foam dust suppressant, and add the prepared foam dust suppressant to the mine foam to generate In the device, the generated foam is transported to the dust source to cover the dust source to achieve a good dust...

Embodiment 2

[0021] Take 9.5g of coconut oil diethanolamide, 0.4g of carboxymethyl cellulose, 2g of fatty alcohol polyoxyethylene ether glucoside and 4g of cationic polyacrylamide, add them into 984.1g of water, mix them fully and heat for a while to dissolve completely, and finally configure 1kg Foam dust suppressant. In the foam dust suppressant, the proportion of coconut oil diethanolamide is 0.95%, the proportion of carboxymethyl cellulose is 0.04%, the proportion of fatty alcohol polyoxyethylene ether glucoside is 0.2%, and the proportion of cationic polypropylene The proportion of amides is 0.4%. Add the prepared foam dust suppressant to the Roche foam generator to generate a foam height of 895.23mL, and increase the mass of the foam dust suppressant by 100 times to prepare a foam dust suppressant, and add the prepared foam dust suppressant to the mine foam to generate In the device, the generated foam is transported to the dust source to cover the dust source to achieve a good dust...

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PUM

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Abstract

The invention relates to a thickening type efficient foam dust settling agent for a coal mine excavation face, and belongs to the technical field of dust falling. The invention discloses a foam dust settling agent that includes the following parts in percentage by weight: the foaming agent is coconut oil diethanolamide of 0.80%-0.95%; the foam stabilizer is 0.03%-0.04% of carboxymethyl cellulose;the wetting agent is 0.15%-0.20% of fatty alcohol-polyoxyethylene ether glucoside; the thickening agent is 0.20%-0.40% of cationic polyacrylamide, and the water is 98.41%-98.82%. The foam dust-settling agent has the advantages that the foam dust-settling agent can completely wrap, wet and settle dust generated by a dust source by utilizing foam, so that efficient dust settling is realized.

Description

technical field [0001] The invention relates to a high-efficiency foam dedusting agent for a thickened coal mine excavation face, which belongs to the technical field of dedusting. Background technique [0002] During the mining and excavation of coal resources, besides gas, mine dust is the most important natural disaster. If the concentration of coal dust on the working face of the mine is too high, on the one hand, it may cause a coal mine explosion accident, seriously affecting the life safety of miners; on the other hand, coal dust may cause coal miners to suffer from pneumoconiosis, seriously endangering the health of miners. Coal dust is mainly produced in the cutting process of mechanical mining and excavation and the lifting process of conveying and transportation. With the continuous improvement of coal mining mechanization technology, the greater the amount of coal mined, the higher the concentration of coal dust generated. Mine coal dust has brought major safety...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K3/22
CPCC09K3/22
Inventor 张道鹏曹桐郝晓云
Owner SHANDONG UNIV OF TECH
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