【摘要】 简述了低位综放工作面采空区残煤损失形成原因、赋存状况,并对其损失情况进行了量化分析,推想出用某种装置占据存煤死角空间,达到回收残煤的目的;本着这种构想与煤科总院共同研制了“采空区残煤回收装置”,该装置投入使用后,工作面回收率提高3%～5%,经济效益显著,推广价值巨大;文中对其构成和回收原理进行了重点介绍。更多还原

【Abstract】 The residual coal forming cause and e xisted situation at low position ful l -mechanized mine goaf are introduced and quantization analysis of loss have made.To think out a mechanism to re covery residual coal recovery unit,combined with Coal Science Research Institute.Af ter putting into production,the rec overy rate of coal raise up to 3-5%,wi th obvious benefit and spreading value.The str ucture and recovery principle have b een mainly described in this paper.〔更多还原