广西大新锰矿缓倾斜薄矿体回采方法研究

Stoping Method in Slowly-inclined Thin Ore Body in Daxin Mn Mine

根据广西大新锰矿北中部缓倾斜薄矿体的赋存情况,对矿房回采的方法进行了探讨。通过比较采出矿石的贫化率、采出矿石品位、出矿效率和出矿成本,结合下游生产对矿石的品位要求,得出矿层厚度<1 m时采用分层法回采,1 m以上厚度的矿层采用普通法回采。对大新锰矿的合理开采提供了有价值的参考。

According to the occurrence of slight slope and thin ore body in North Central in Daxin Mn mine,the stope mining method was discussed. By comparing the extracted ore dilution rate of recovery of ore grade,we count productivity and cost in combination with lower production of ore grade requirements. And layered method is used in the seam thickness with 〈1 m,more than 1 m thickness seam mining in common law. The rational exploitation of Daxin Mn mine provides a valuable reference.