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Gas drainage is one of the effective means of prevention and treatment of the gas disaster , as a precondition to the construction of coal seam drilling . The borehole construction process , a large number of coal dust , coal dust affects not only the work environment , health hazards to workers , and excessive coal dust concentration caused by coal dust explosion . The drilling process, the openings on the dust removing device is effective to reduce the method of the coal dust concentration . Structural characteristics and collection efficiency of dust removal device direct response to the dust, commonly used in the presence of dust removal device structure is complex , difficult maintenance , water consumption, and low collection efficiency . In this paper, a new dust removal device program , on this basis , the development process of gravity settling chamber and dust barrel , and gravity settling chamber and dust barrel fluid simulation , combined with the simulation results to optimize the structure and dust of gravity settling chamber barrel hollow plastic ball height . In addition, the laboratory experiments , analysis by laboratory experimental data , reasonable choice of parameters of the impact of the dust bucket . According to the results of the above studies , the processing of new dust removing device , the industrial test , and compared with the side of the dust removing device of the ore . Industrial test results show that the new dust removal device performance is better than the run-of-mine dust removal device from using the new dust removal device close to the the construction drilling roadway dust concentration , dust concentration effectively inhibited the proliferation of drilling coal dust to coal roadway , verify the feasibility and practicality of the new dust removal device .
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