A dust suppressant that enhances the infiltration and wetting effect on dust particles and coal bodies

Abstract

The invention discloses a dust suppressant for enhancing the effect of permeating and wetting dust particles and coal bodies. The dust suppressant comprises, by weight, 1% to 3.5% of lauramide propyl group betaine, 0.03% to 2% of sodium alcohol ether sulphate, 0.3% to 0.8% of dioctyl sulfo-group sodium succinate, 0.03% to 2% of sulfo-group succinic acid sodium diisooctyl, 0.03% to 0.5% of cetyl trimethyl ammonium bromide, 0.3% to 0.9% of 1-hexadecylsulfonic acid sodium salt, 0.3% to 1.2% of sodium lauryl ether sulfate, 0.01% to 0.5% of diethylenetriamine penta (methylene phosphonic acid) heptasaodium salt, 0.2% to 0.5% of oleoyl methylamine ethyl sulfonic acid sodium, 0.2% to 0.4% of calcium chloride, and the balance water. The components are fully mixed and then pressed in a coal mine working face spray dust-settling system to conduct spraying and injected into the coal bodies through drilling holes. By means of the dust suppressant, the problem that the particles and coal bodies are not prone to being wet by water and permeated is solved, the generated quantity of the working face coal dust is lowered effectively, the water consumption for falling dust is saved, and meanwhile, the coal mining efficiency is improved.

Description

technical field [0001] The invention relates to the field of suppressing dust particles and coal wetting in underground coal mines, in particular to a dust suppressant that enhances the infiltration and wetting effect on dust particles and coal bodies. Background technique [0002] With the increase of my country's demand for coal energy, not only the number of coal mines has increased, but also the tunnel mechanized excavation technology has also developed rapidly. Dust hazards have become the most serious disaster in the coal industry. With the continuous improvement of the degree of mechanization of excavation, the mining method and coal mining technology of the mine are developing towards the direction of high-yield and intensive production. In this case, although fully mechanized excavation technology has the advantages of fast excavation speed, long single-head distance, high output per unit time, and fast footage, but at the same time, this technology is likely to cau...

AI Technical Summary

Problems solved by technology

In this case, although fully mechanized excavation technology has the advantages of fast excavation speed, long single-head distance, high output per unit time, and fast footage, but at the same time, this technology is likely to cause high dust generation in excavation roadways, which indirectly affects the mine. The dust control work has brought some difficulties

In addition, with the development of production technology, the design and excavation length of fully mechanized roadways are generally more than 1000m, which often results in the phenomenon of single-head long-distance ventilation, which also leads to a decrease in the effective air volume at the outlet of the fan duct, and a small outlet wind speed, especially Is the speed of the wind current is less than 0.5m.s -1 Dust accumulation will occur in some parts of the roadway, which will also bring certain difficulties to the ventilation and dust removal of the tunneling roadway.

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