优化矿体开采工艺提高边缘矿体回采率

Optimizing Mining Technology of Triangular Orebody to Improve Recovery Rate of Marginal Orebody

如何提高矿石回采率,是目前露天转井下过渡时期的关健问题。针对这一问题,论述了河钢集团矿业公司庙沟铁矿露天转井下过渡阶段采用挂帮矿的开采工艺方法,主要阐述了优化井下回采穿爆参数及提高设备铲装效率,进而提高矿石回采率,增加经济效益。

How to improve the recovery rate of ore is the key problem in the transition period from open pit to underground.In view of this problem,this paper discusses the mining technology of pit wall-connected ore body in the transition stage from open pit to underground in Miaogou Iron Mine of Hebei Iron and Steel Group Mining Co.,Ltd,and mainly expounds the optimization of underground mining blasting parameters and the improvement of equipment shovel loading efficiency,so as to improve the ore recovery rate and increase economic benefits.