Preparation and Properties of a New Type of Coal Dust Suppressant

Abstract:

A new type of water-soluble coal dust suppressant (later called MA) with excellent performance was prepared by modified starch, styrene, methyl methacrylate, Butyl acrylate (as the main monomers) and acrylic acid (as the functional monomer) via mixed the emulsifiers of Sodium dodecyl sulfate (SDS)/octylphenol polyoxyethylene(10)ether (OP-10) and ammonium persulfate served as initiator. The properties of anti-wind erosion, water retention and coal quality impact were investigated. The MA was characterized by viscosity measurements and scanning electron microscopy. The results show that the spraying of MA has no effect on coal quality, and the water loss rate of MA is slightly lower than that of water, which has certain moisture retention. After spraying MA on the surface of coal sample for 120 hours, the coal sample is swept by six-stage wind (wind speed is 10.8-13.8 m/s), and the erosion rate is only 1.8%. The MA and coal samples are closely bonded to form a dense soft film, which has a excellent dust suppression effect.

• Periodical: Materials Science Forum (Volume 1036)
• Pages: 145-149
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.1036.145
• Online since: June 2021
• Authors: Chuan Zhang*, Xiang Bin Xu, Qing Song Zhang
• Keywords: Coal Dust Pollution, Dust Suppression, Open-Air Coal Yard, Polymer

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DOI: 10.1016/s1674-5264(09)60209-x

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