低贫化放矿与放出矿石块矿率的关系  

The Relation Between Lowdilution Ore Drawing and Massive Ore Ratio in Drawed Pile

作　　者：李昌宁[1] 王家宝[1] 任凤玉 

机构地区：[1]东北大学

出　　处：《矿业研究与开发》1999年第4期5-7,29,共4页Mining Research and Development

摘　　要：通过分析覆岩下放矿时矿岩颗粒在运动场中的移动分布规律以及低贫化放矿时放出矿石与矿石块矿率的关系。By analysing the distribution patterns of ore and rock particles in moving field and the relation between drawed ore and massive ore ratio in lowdilution ore drawing as drawing under overlying rock, the author puts forward the feasilbe ways to raise the rate of massive ore in drawed pile.

关 键 词：低贫化放矿 块矿率 移动场 移动速度 放出矿石 

分 类 号：TD325[矿业工程—矿井建设] TD853.3