By enlarging the cross section of mining entrance before ore removal, the entrance of ore removal is enabled to be close to footwall arrangement, the scope of the flow of ore is made greater, footwall residual amount is reduced and the rate of withdrawal is raised.

  • 优化了采场的结构参数,通过出矿前扩大回采进路的断面,保证了出矿进路靠近下盘布置,增加了崩落矿石的流动范围,减少了下盘残留,提高了矿石回收率。

  • 互联网摘选 2025-01-20 13:04:39

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