大直径深孔落矿工艺在低品位厚大矿床开采中的应用  

Application of Large-diameter and Deep-hole Caving Process in the Mining of Low-grade and Thick Deposits

作　　者：薛小蒙 莫东旭 罗佳 柳小胜 XUE Xiaomeng;MO Dongxu;LUO Jia;LIU Xiaosheng(Changsha Institute of Mining Research Co.,L td,Changsha,Hunan 410012,China;National Engineerring Research Center for Metal Mining,Changsha,Hunan 410012,China)

机构地区：[1]长沙矿山研究院有限责任公司,湖南长沙410012 [2]国家金属采矿工程技术研究中心,湖南长沙410012

出　　处：《矿业研究与开发》2020年第4期8-11,共4页Mining Research and Development

摘　　要：为实现盘龙矿深部低品位矿床的安全高效开采,通过对矿体形态、工程地质条件及其类似矿山的开采案例研究,提出采用下向大直径深孔落矿方案进行回采。选取828采场作为试验采场,工业试验取得了良好的效果:采场综合生产能力达到300t/d,工作面工效为32t/班,采矿成本较原浅孔留矿法降低了10%。试验结果表明,下向大直径深孔落矿工艺可以实现盘龙矿低品位矿体的安全高效回采。In order to realize the safe and efficient mining of low-grade deposits in the deep of Panlong Mine,through the study on the orebody shape,engineering geological conditions and similar mines,a downward large-diameter and deep-hole caving process was proposed.No.828 stope was selected as the test stope,and the industrial test achieved good results.The comprehensive production capacity of stope was up to 300 t/d,the working efficiency of working face was 32 t/class,and the mining cost reduced by 10%compared with the short-hole shrinkage method.The test results showed that the downward largediameter and deep-hole caving process can achieve safe and efficient mining of low-grade ore body in Panlong Mine.

关 键 词：低品位厚大矿床 大直径深孔采矿法 回采工艺 技术经济指标 

分 类 号：TD853[矿业工程—金属矿开采]