湘安某厚大矿体中深孔爆破参数的确定

A Large and Thick Ore Body in Deep Hole Blasting Parameters Determination in Xiangann

湘安某钨矿自建矿以来一直采用浅孔爆破,近年来随着开采规模的不断扩大以及对出矿品位要求的降低,公司决定对2#、3#脉进行开采。为了降低生产成本、提高凿岩出矿效率,公司采购了新的凿岩设备,进行中深孔爆破试验,优化爆破参数。

Xiangan a tungsten mine use shallow hole blasting , since in recent years , with the continuous expansion of pro-duction and reduce to the ore grade requirement , the company decided to mining on 2#and 3#veins.In order to reduce the production cost , improve the efficiency of drilling and ore removal , purchasing a new drilling equipment , medium-length holes blasting in the experiment , optimization of blasting parameters .