【摘要】 介绍了高分段采矿法的回采工艺及其配套设备 ,用高分段采矿法代替中深孔矿房法 ,用KQJ- 10 0B潜孔钻机代替YGZ - 90深孔钻机。应用结果表明 ,万吨采掘比降低 2 1m ,每米崩矿量提高 3 88t,吨矿成本下降4 81元更多还原

【Abstract】 The extraction technology and complementory equipment of high sublevel mining method are described.The application of high sublevel mining instead of medium and deep hole room work and of KQJ-100B down-hole drill instead of YGZ-90 deep hole drill has brought a reduction of stripping ratio per ten thousand t of 21m,an increase of caved ore of 3.88t and a decrease of cost per ton ore of $4.81.更多还原