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Novel coal mine foam dustfall agent

A technology of dust suppressant and coal mine, applied in other chemical processes, chemical instruments and methods, etc., can solve the problem of low dust fall rate of respirable dust, and achieve the effect of excellent decontamination, rich and delicate foam, and strong wetting power

Inactive 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

These dust prevention technologies have played an important role in reducing the dust concentration, but there are also many shortcomings, especially the low dust reduction rate for respirable dust.

Method used

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  • Novel coal mine foam dustfall agent
  • Novel coal mine foam dustfall agent
  • Novel coal mine foam dustfall agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Take 4.5g of alkylphenol polyoxyethylene ether, 0.2g of polyanionic cellulose, and 1g of coconut oil diethanolamide into 994.3g of water, mix well and heat it to make it completely dissolved, and finally configure 1kg of foam dust suppressant. In this foam dust suppressant, alkylphenol polyoxyethylene ether accounts for 0.8%, polyanionic cellulose accounts for 0.02%, and coconut oil diethanolamide accounts for 0.4%. The specific dust reduction principle is shown in Figure 1 and Figure 2. The prepared foam dust reduction agent is added to the Roche foam meter generator to produce a foam height of 871.33mL, and the quality of the foam dust reduction agent is increased by 100 times to prepare the foam dust reduction agent , The prepared foam dust suppressant is added to the mine foam generator, and the generated foam is transported to the dust source to cover the dust source to achieve a good dust reduction effect. The total dust reduction rate of this formula can reach 97.8...

Embodiment 2

[0024] Take 2.0 g of coconut oil diethanolamide, 0.2 g of polyanionic cellulose, and 1 g of fatty alcohol polyoxyethylene ether glucoside into 996.8 g of water to fully mix and heat it to completely dissolve, and finally prepare 1 kg of foam dust suppressant. In the foam dust suppressant, coconut oil diethanolamide accounts for 0.20%, polyanionic cellulose accounts for 0.02%, and fatty alcohol polyoxyethylene ether glucoside accounts for 0.10%. The specific dust reduction principle is shown in Figure 1 and Figure 2. The prepared foam dust reduction agent is added to the Roche foam meter generator to produce a foam height of 456.78 mL, and the quality of the foam dust reduction agent is increased by 100 times to prepare foam dust reduction Add the prepared foam dust suppressant to the mine foam generator, and transport the generated foam to the dust source to cover the dust source to achieve a good dust reduction effect. The total dust reduction rate of this formula can reach 78....

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Abstract

The invention discloses a novel coal mine foam dustfall agent. The agent is prepared from, by weight, 0.20-0.45% of forming agent, 0.02-0.03% of foam stabilizer, 0.10-0.15% of wetting agent and 99.37-99.68% of water. Alkylphenol polyoxyethylene ether, polyanionic cellulose, coconut oil diethanolamide and fatty alcohol-polyoxyethylene ether glucoside are fully mixed with water, then the liquid mixture is put into a foam dustfall 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 moleculesare the first 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 compared with 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 97.9% or above,and the dustfall efficiency is improved.

Description

Technical field [0001] The invention relates to a new coal mine foam dust suppressant, which belongs to the technical field of dust suppression. Background technique [0002] Mine dust is one of the main natural disasters in the process of coal resource mining. It is manifested in coal dust explosion and pneumoconiosis, which seriously affects the safety of coal mine production and the lives and health of miners. With the continuous improvement of the degree of mechanization of mining, the amount of dust produced in coal mines has increased, which has brought major hidden dangers to coal mine safety production and increased the probability of pneumoconiosis. According to statistics, pneumoconiosis is the most serious occupational disease in my country, and the coal industry pneumoconiosis ranks first among all major industries. There are more than 600,000 patients with pneumoconiosis. There are 12,000 new cases of pneumoconiosis each year and about 2500 deaths due to pneumoconios...

Claims

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Application Information

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IPC IPC(8): C09K3/22
Inventor 张道鹏孟庆国所聪
Owner SHANDONG UNIV OF TECH
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