双鸭山铁矿北区残矿回收技术研究  

Study on approach of remnant ore recovery in north region of Shuangyashan iron mine

作　　者：常帅[1] 任凤玉[1] 李楠[1] 全桂光 李明旭 

机构地区：[1]东北大学资源与土木工程学院,辽宁沈阳110004 [2]双鸭山建龙矿业有限公司,黑龙江双鸭山155126

出　　处：《中国矿业》2010年第12期59-61,共3页China Mining Magazine

摘　　要：双鸭山铁矿北区为含不稳岩层的急倾斜中厚矿体,应用浅孔留矿法开采中,由于采场塌冒与上盘围岩过早混入等原因,在220m中段1～12线之间残留了大量矿石。在分析残矿形成原因与残留体形态的基础上,结合矿岩条件,提出进路式回收方案,并较好地解决了方案实施中的相关安全问题。该方案实施一年多来,回收效果良好,实现了残矿安全回收的预期目标。The ore body in north region of Shuangyashan Iron Mine is medium thick with a steep dip,a low-grade and a poor stability,and has been mined by means of the short-hole shrinkage method.Lots of ore was remained at the shrinkage stope between 1~12 exploration lines in the 220m level because hanging wall falling.Based on analysising the shape of remnant ore,a drift recovery scheme was proposed.It is proved by analysis and practice that this new scheme has a good practicality in recovery of the remnant ore.

关 键 词：浅孔留矿法 冒落残矿 进路回收 

分 类 号：TD981[矿业工程—选矿]