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低品位倾斜中厚矿体充填采矿法优选

  • 曾令义
  • 作者单位:
  • 长沙矿山研究院有限责任公司&国家金属采矿工程技术研究中心
  • 基金项目:

  • 湖南省“湖湘青年英才”支持计划项目(2020RC3088)
  • 详细信息:

  • 作者简介:
  • 曾令义(1983—),男,高级工程师,硕士,从事非煤矿产资源开发设计与研究工作;E-mail:258188498@qq.com
  • 通讯作者:
  • isnull
  • PDF下载

Filling mining method optimization for low-grade medium-thick inclined ore body

  • English Author:
  • Changsha Institute of Mining Research Co.,Ltd.&National Engineering Research Center for Metal Mining
  • Unit:
  • 摘要
  • 在线预览
  • 参考文献

摘要:

某铅锌矿原采用分段凿岩阶段空场采矿法开采,存在采矿损失大、遗留采空区隐患等问题。针对该矿山倾斜中厚矿体,开展了充填采矿法优化研究工作。根据实际开采技术条件,推荐采用分段凿岩阶段空场嗣后充填采矿法回采该矿山倾斜中厚矿体。采矿方法设计采场生产能力为450 t/d,采矿损失率22 %,矿石贫化率13 %,采矿直接成本为39.18元/t,充填成本为12.65元/t。研究成果对同类型矿体的采矿方法选择具有一定的参考和借鉴意义。

关键词:

深部开采;低品位;倾斜中厚矿体;空场采矿法;充填采矿法

Abstract:

A lead-zinc mine was originally mined using the sublevel drilling and staged open stoping method,which causes large ore loss and leaves potentially risky goafs.For the inclined medium-thick ore body in the mine,the optimization of the filling mining method was carried out.According to the actual technical and economic conditions of mining,sublevel drilling-staged open stope-subsequent filling mining method is recommended to extract the inclined medium-thick ore body in the mine.The designed stope production capacity of the mining method is 450 t/d,the ore loss rate is 22 %,the dilution rate is 13 %,the direct mining cost is 39.18 yuan/t,and the filling cost is 12.65 yuan/t.The research results have certain reference significance for the selection of mining methods for the same type of ore bodies.

Keywords:

deep mining;low grade;medium-thick inclined ore body;open stope mining method;filling mining method