作者单位:HAN Xiu-li,LIU Li-na,LIU Lei(College of Metallurgy and Energy,Hebei United University,Tangshan 063000,Hebei China)韩秀丽,刘丽娜,刘磊(河北联合大学矿业工程学院,河北唐山063000)LI Yun-gang,ZHANG Fu-dong(College of Miring and Engineering,Hebei United University,Tangshan 063000,Hebei China)张福东,李运刚(河北联合大学冶金与能源学院,河北唐山063000)