Study on Application of Dust Suppression Technology by Spatial High-pressure Spray in Fully Mechanized Face
GUO Shengjun
LIU Tao
XU Ming
ZHANG Sai
Abstract：To aim at the problem of the high dust concentration which was difficult to control in the fully mechanized face, a dust suppression technology by spatial high-pressure water spray was put forward in this paper. Based on the analysis of the formation features and dispersion regularity of dust in the working face, a dust suppression device by high-pressure water spray was designed, in the meantime, study was carried out on the selection of spray nozzles and their injection direction. A variety of dust suppression technologies and equipment such as high-pressure water spray, secondary negative pressure, water spray following dust source and so on were adopted to spray water into the dust area from different directions, which thus formed a spatial and dense water mist area, as a result, the purpose of efficient dust suppression by high-pressure water spray was achieved, the removal efficiency of total dust reached 92. 0% and that of respirable dust was 78. 1%, and the working environment was greatly improved.
Keywords：fully mechanized working facehigh-pressure water spraysecondary dust suppression by negative pressuredust suppression by water spray following dust sourcespatial
Publication Date：2015-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 48-51,61 )