Comprehensive dust prevention technology and application in Shendong Mining Area

According to great dust occurred from the mining and excavation,crushing,dilling,shotcreting,blasting,coal preparation and other several links in a coal min e,the dusts would cause extreme harms to the health of the workers in the coal mine and would be the major problem to cause the dust explosion,from two aspects of impr oving the comprehensive dust prevention system and to reduce the dust production volume of the dust sources,the paper summarized the high efficient comprehensive dus t reduction technical means and dust control system in Shendong Mining Area and in detail introduced the dust control conditions at the coal mining face,mine heading fac e,coal stage loading,coal preparation plant at the mine surface,coal loading station and other major coal dust location. With the comprehensive dust prevention of the coal mining face,dust prevention of the mine heading face,the secondary dust fly control of the coal production system and other technical measures,the dust concentration was reduced from the previous 526.6,494. 3 and 92. 0 mg 1 m3 to below 8.6,4.8and 3.3 mg 1 m3 and remarkable control effect was obtained.