Environmentally-friendly coal transporting and stockpiling dust inhibitor and preparation method thereof

Abstract

The invention discloses an environmentally-friendly coal transporting and stockpiling dust inhibitor and a preparation method thereof. The dust inhibitor comprises, by mass, 5-10% of lignosulfonate, 5-10% of acrylamide, 10-15% of acrylic acid, 0.5-1.4% of a wetting agent, 0.4-0.9% of a thickener, 0.3-0.5% of an osmotic agent, 0.2-0.5% of an antifreeze agent, 0.05-0.1% of an initiator, 0.5-0.8% of a cross-linking agent, 0.2-0.5% of an inorganic salt, and the balance of water. A finally generated gel state substance has an obviously better coal wrapping effect than spraying, and can form a stable protection layer after the gel state substance is sprayed on the surface of coal. The dust inhibitor has the advantages of good wetting effect, fast solidification speed, and large hardness and obvious dust inhibiting effect of the formed protection layer.

Description

technical field [0001] The invention relates to a dust suppressant for mine dust prevention, in particular to an environment-friendly dust suppressant for coal transportation and stockpiling and a preparation method. Background technique [0002] With the improvement of the mechanization level in the mine production process, the dust generated in the operation process has also seriously exceeded the standard. There are clear regulations and appropriate methods to remove the dust generated by blasting excavation face, fully mechanized excavation face, blast mining face, and fully mechanized mining face. To reduce the dust concentration, although the dust in the mining production process has been effectively controlled, there are few dust prevention measures and methods in the process of coal transportation and storage, and there are even fewer related dust suppressant inventions. [0003] In addition, due to the limitation and influence of economic and geographical conditions...

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Problems solved by technology

[0002] With the improvement of the mechanization level in the mine production process, the dust generated in the operation process has also seriously exceeded the standard. There are clear regulations and appropriate methods to remove the dust generated by blasting excavation face, fully mechanized excavation face, blast mining face, and fully mechanized mining face. Reduce the dust concentration. Although the dust in the mining production process has been effectively controlled, there are few dust prevention measures and methods in the process of coal transportation and storage, and there are even fewer related dust suppressant inventions.

[0003] In addition, due to the limitation and influence of economic and geographical conditions, not all coal mines in my country are underground mining, and open-pit coal mines account for about 17%. Belt transportation and other links, as well as the mining and transportation of coal in open-pit coal mines will generate a lot of dust. These dusts seriously affect the environment under the action of wind, and cause great harm to miners and residents near the mining area.

Especially during the transportation of coal vehicles, due to the strong wind or the "piston wind" when the coal transport vehicles pass through the tunnel, the pulverized coal will be scattered on the ground and the pulverized coal will fly all over the sky. These situations not only waste energy and caused great pollution to the environment

Although there is water sprinkling and dust reduction in the prior art, the effect is not obvious

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