Application of Pre-blasting Technology in the Nanfen Open-Air Iron Mine

Introduced a pre-blasting technique in Nanfen Open-Air Iron Mine,which not only can greatly reduce blasting vibration,but also greatly enhanced the stability of the slope,as mine production safety to lay a solid foundation.At the same time,Nanfen iron ore through the open-air blasting a large number of production practice,summed up a set of pre-splitting blast design parameters,charging structure,which has a certain value.To other similar projects in the mining and blasting pre-blasting.