[1]School of Mechatronic Engineering, China University of Mining & Technology, Xuzhou 221116, China;
[1]School of Mechatronic Engineering, China University of Mining & Technology, Xuzhou 221116, China;
[1]School of Mechatronic Engineering, China University of Mining & Technology, Xuzhou 221116, China;
[2]College of Mines and Earth Sciences, University of Utah, Salt Lake City, UT84112-0114, USA;
[1]School of Mechatronic Engineering, China University of Mining & Technology, Xuzhou 221116, China;
Rosin-Rammler distribution; impact crush; separation indicator; coal and gangue; separation and backfilling system;