截止品位与放矿总量控制相结合的放矿方式在桦树沟矿区的应用实践  

Ore-drawing Mode by Combining Cut-off Grade with Ore-drawing Control——Application and Practice in Huashugou Mining Area

作　　者：杨作华[1] 

机构地区：[1]酒钢集团宏兴钢铁股份公司镜铁山矿,甘肃嘉峪关735100

出　　处：《矿冶工程》2012年第3期30-32,共3页Mining and Metallurgical Engineering

摘　　要：根据桦树沟矿区无底柱分段崩落采矿法放矿方式存在的问题,提出了截止品位与放矿总量控制相结合的新的放矿方式。生产实践表明,截止品位与放矿总量控制相结合放矿有效稳定了采出矿石品位,提高了回采率,延长了矿山服务年限,创造了可观的经济效益和社会效益,可为同类矿山放矿管理提供借鉴作用。In view of the problem existed in the ore-drawing mode of non-pillar sublevel caving in Huashugou mining area, a new drawing mode was proposed taking into account the cut-off grade and ore-drawing control. Practice showed that, cut-off grade combined with ore-drawing control could ensure consistency in the grade of mined-out ore, resulting in the extraction rate increased, the service life of mine prolonged. This method can create a considerable economical and social senefit, worthy of being referenced in other similar mines.

关 键 词：截止品位 放矿总量控制 无底柱分段崩落法 采场配矿 回采率 

分 类 号：TD853[矿业工程—金属矿开采]