白银深部铜矿低贫化放矿出矿管理研究  

ORE QUALITY MANAGEMENT OF LOW DILUTION ORE DRAWING

作　　者：方国勇 李昌宁[2] 任凤玉[2] 

机构地区：[1]白银深部铜矿,730900 [2]东北大学,沈阳110006

出　　处：《中国矿业》2000年第1期36-39,共4页China Mining Magazine

摘　　要：无底柱分段崩落法低贫化放矿方式要求限制废石漏斗在出矿口的破裂。白银深部铜矿矿岩界限很不明显且围岩含有品位 ,在出矿口根据肉眼判断废石漏斗的破裂误差大 ,且出矿管理难度大 ,为此 ,采用控制放出矿量的方法 ,较好地实现了低贫化放矿问题。The low dilution mode of ore drawing requies that ore quality management be suited to the feature of ore and rock movement during ore drawing in sublevel caving.The paper adopts a new way of limiting ore drawing quantities to control ore dilution due to the difficulty in recognizing rock and ore as well as the fact of existing ore bearing rock in Baiyin Copper Mine.

关 键 词：无底柱 分段崩落法 低贫化放矿 出矿管理 铜矿 

分 类 号：TD862.1[矿业工程—金属矿开采] TD853.362[矿业工程—矿山开采]