深孔采矿法在急倾斜极薄钨矿脉的应用The Application of Deep-hole Mining Method in Steeply Inclined and Extremely Thin Tungsten Ore Bodies
汪杰,袁兵,勒治华,叶光祥,汪光鑫,郭成淋
摘要(Abstract):
针对赣南某钨矿山的急倾斜极薄矿脉,提出了浅孔留矿法、中深孔留矿法、大孔径深孔落矿空场法3种方案进行对比分析,最终选择大孔径深孔落矿空场法进行工业试验。结果表明,采用大孔径深孔落矿空场法开采急倾斜极薄矿脉,采场平均生产能力可达到90~100 t/d,其损失率约为5%,贫化率为85%~90%,总体应用效果较好。与原有浅孔留矿法相比,大孔径深孔落矿空场法提高了采场生产能力,降低了工人工作强度,保证了工人作业安全。
关键词(KeyWords): 急倾斜极薄矿脉;深孔采矿;浅孔留矿法;大孔径深孔落矿空场法
基金项目(Foundation): 赣鄱俊才支持计划(20232BCJ23063)
作者(Author): 汪杰,袁兵,勒治华,叶光祥,汪光鑫,郭成淋
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