多排深孔一次起爆技术在李楼铁矿的试验研究

Experimental study about multi-row deep hole one blasting at Lilou iron mine

为提高李楼铁矿矿块生产能力,降低生产成本并缩短回采时间,进行了多排深孔一次起爆技术试验研究。通过设计合适的装药参数,一次成功爆破了6排深孔,取得了良好的爆破效果,且炸药单耗降低,并在后续又多次试验成功,可在全矿推广使用。

In order to improve the capacity of ore production block in Lilou iron mine,reduce production costs and reduce recovery time,we designed a multi-row medium-length hole one-time detonation scheme for experimental research.By designing the appropriate charging parameters,six rows of medium-length hole were successfully blasted at one time,good blasting results were obtained and explosive unit consumption was reduced.After repeated tests,the test was successful and can be widely used in the whole mine.