DOI: 10.11799/ce201603019
High pressure spray dust suppression in fully mechanized tunneling face
LV Er-zhong
LIU Tao
YAN Chun
XU Ming
Abstract：Aiming at the high dust concentration and management difficulties in the fully mechanized tunneling face, the paper proposes a high pressure spray technology for dust suppression. The best spray particle size range is determined according to the relationship between dust particle size, spray particle size and dust removal efficiency. The models and the pressure of high-pressure atomizing nozzle are identified through the theoretical calculation and experimental verification based on the flour dust distribution law test in 2501 working face of Xinqiao coal mine. The dust removal efficiency at driver position in the tunneling face is 92?5%, favorable dust suppression effect is achieved.
Keywords：fully mechanized tunneling facehigh pressure spraydust particle diameteratomizing particle sizedust removal efficiency
Publication Date：2016-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 58-60,63 )