partly supported by the National Natural Science Foundation of China (No.51404263);the National Natural Science Foundation of Jiangsu Province (No.BK20130203);the Coal Mine Joint Funds of the National Natural Science Foundation of China (No.51134023);the State Key Laboratory Cultivation Base for Gas Geology and Gas Control (No.WS2013A05);the Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD);the independent study for State Key Laboratory of Coal Resources and Safe Mining,China University of Mining and Technology (No.SKLCRSM09X04)
After gas drainage, the outburst seam is dry and, consequently, during subsequent mechanized mining, unwanted dust production is extensive. Because the hard dustfall typically has a small particle size it contains a h...