Study on the Technology of Dust Control in Artillery Working Face

In order to solve the serious problem of dust pollution in artillery working face, this paper studied the dust production law and the space-time evolution law of dust-bearing airflow in artillery working face.It was concluded that the optimal dust discharge wind speed of artillery excavation is from 0.30 m/s to 0.40 m/s. Combined with the dust production characteristics and wind speed conditions in 4301 artillery working face of Xujiayuan Coal Mine in Yiliang, the comprehensive dust prevention measures including high efficiency water stemming, dust removal with high pressure spray and dust removal with dust quality concentration transfinite spray were proposed, which controls dust from the source and cuts off the dust diffusion pathway, the comprehensive dust removal efficiency reaches over 85%, and a good dust removal effect is obtained.