潜孔留矿采矿方法在镰子沟金矿Ⅱ-1号矿体的应用

Application of down the hole shrinkage mining method in no.2-1 orebody of fusigou gold mine

总结潜孔留矿法在镰子沟金矿Ⅱ-1矿体开采过程中的应用,经过生产证明,该方法比适合该矿体的开采,潜孔留矿工艺操作较为简单,易于掌握,而且利用重力放矿,不需过多设备和电耗,采提高了回采率,降低了贫化率并取得较好的经济效益。

This paper summarizes the application of the down-hole shrinkage method in the mining process of theⅡ-1 orebody of fusigou gold mine.It is proved by production that the method is more suitable for the mining of the orebody.The down-hole shrinkage process is simple and easy to master,and the gravity ore drawing is used without too much equipment and power consumption.The mining improves the recovery rate,reduces the dilution rate and obtains better economic benefits.