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Novel coal mine foam dedusting agent

A technology of dust remover and coal mine, applied in other chemical processes, chemical instruments and methods, etc., can solve the problems such as unsatisfactory effect, achieve remarkable thickening effect, bactericidal enzyme activity, and water retention effect

Pending Publication Date: 2018-07-17
SHANDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the dust removal measures adopted by most coal mines at home and abroad mainly include coal seam water injection, spray dust reduction, dust collector dust removal, ventilation dust removal and chemical dust suppression, etc., but these measures can only reduce the dust concentration to a certain extent, and the effect is not ideal. , the problem of high-concentration dust in coal mines is still serious

Method used

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  • Novel coal mine foam dedusting agent
  • Novel coal mine foam dedusting agent
  • Novel coal mine foam dedusting agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Take 8g of lauryl glucoside, 0.2g of polyanionic cellulose, and 4g of alkylphenol polyoxyethylene ether, add them to 987.8g of water, mix well, heat it slightly to dissolve completely, and finally configure 1kg of foam dust remover. In this foam dust remover, the proportion of lauryl glucoside is 0.8%, the proportion of polyanionic cellulose is 0.02%, and the proportion of alkylphenol ethoxylate is 0.4%. Its specific dust reduction principle is shown in Figure 1 and Figure 2. Add the prepared foam dedusting agent into the Roche Foam Instrument Generator to produce a foam height of 862.73mL. Enlarging the mass of the foam dust remover by 100 times to prepare a foam dust remover, adding the prepared foam dust remover to the mine foam generator, transporting the generated foam to the dust source and covering the dust source can achieve a good dust reduction effect. The total dust reduction rate of the formula can reach 97.27%, and the exhaled dust reduction rate can reach...

Embodiment 2

[0025] Take 8.5g of fatty alcohol polyoxyethylene ether, 0.2g of polyanionic cellulose, and 4.5g of alkylphenol polyoxyethylene ether, add them into 986.8g of water, mix well, heat it slightly to dissolve completely, and finally configure 1kg of foam dust remover. In the foam dust remover, the proportion of fatty alcohol polyoxyethylene ether is 0.85%, the proportion of polyanionic cellulose is 0.02%, and the proportion of alkylphenol polyoxyethylene ether is 0.45%. Its specific dust reduction principle is shown in Figure 1 and Figure 2. Add the prepared foam dedusting agent into the Roche foam generator to generate a foam height of 453.33mL, and increase the mass of the foam dedusting agent by 100 times to prepare the foam dedusting agent, and add the prepared foam dedusting agent into the mine foam generator , Transport the generated foam to the dust source and cover the dust source to achieve a good dust reduction effect. The total dust reduction rate of this formula can re...

Embodiment 3

[0027] Take 2g of fatty alcohol polyoxyethylene ether, 0.2g of polyanionic cellulose, and 8g of lauryl glucoside, add it to 989.8g of water, mix well, heat it slightly to dissolve completely, and finally configure 1kg of foam dust remover. In the foam dust remover, the proportion of fatty alcohol polyoxyethylene ether glucoside is 0.2%, the proportion of polyanionic cellulose is 0.02%, and the proportion of lauryl glucoside is 0.8%. Its specific dust reduction principle is shown in Figure 1 and Figure 2. Add the prepared foam dedusting agent into the Roche foam generator to generate a foam height of 586.67mL, and increase the mass of the foam dedusting agent by 100 times to prepare the foam dedusting agent, and add the prepared foam dedusting agent into the mine foam generator. Transporting the generated foam to the dust source and covering the dust source can achieve a good dust reduction effect. The total dust reduction rate of this formula can reach 82.73%, and the dust red...

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Abstract

The invention discloses a novel coal mine foam dedusting agent. The agent is prepared from, by weight, 0.45-0.80% of foaming agent, 0.01-0.03% of foam stabilizer, 0.20-0.85% of wetting agent and 98.79-98.99% of water. Lauryl glucoside, polyanionic cellulose, alkylphenol polyoxyethylene ether and fatty alcohol-polyoxyethylene ether glucoside are fully mixed with water, then the liquid mixture is put into a foam dedusting foamer for mining to generate foam, the foam is conveyed to a dust source to cover the dust source, correspondingly dust generated by the dust source is caught and sedimented,and finally, a great operation environment under a coal mine well is ensured. Hydrophobic groups (also named as lipophilic groups), adsorbed to a water source layer, of wetting agent molecules are thefirst ones in contact with coal dust and are composed of long organic carbon chains; the molecular property of the hydrophobic groups is similar to that of the surface of the coal dust, and comparedwith water molecules, the hydrophobic groups can achieve adsorption more easily, so that the dust catching efficiency of the foam is improved, the dustfall rate is increased to 97% or above, and the dustfall efficiency is improved.

Description

technical field [0001] The invention relates to a novel coal mine foam dedusting agent, which belongs to the technical field of dedusting. Background technique [0002] In addition to gas, coal dust underground in coal mines is a major source of danger for safe production, and excessive underground coal dust concentrations can cause explosions. In addition, coal dust is also the main source of miners' pneumoconiosis. The main source of coal dust is the mining face and the conveyor belt. The high-strength cutting of the fully mechanized excavator head produces a large amount of dust, which leads to the largest dust concentration at the mining face. During the transportation process, the high-speed operation of the conveyor belt will also cause dust to rise, resulting in excessive dust concentration in the underground transportation roadway. [0003] In order to reduce the dust concentration at the working face, reduce the harm of dust to workers and equipment, and avoid dus...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K3/22
Inventor 张道鹏孟庆国周茵
Owner SHANDONG UNIV OF TECH
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