曼家寨矿区装药技术优化与应用

Manjiazhai Mining Area Powder Charge Technology Optimization and Application

云南华联锌铟股份有限公司曼家寨采区雨季炮孔含水情况突出,使用成品乳化炸药爆破时,受炮孔孔壁不光滑、炮孔空腔、炮孔遇结构面偏斜影响、爆破质量下降。为了解决水孔装药问题,通过多次试验,最终选取采用橘红膜袋装药,然后采取装袋吊装方法解决装药问题,此法提高单孔装药量,改善爆破质量,提高电铲的铲装效率,每年可节约二次穿爆成本125万,且避免因水孔出现的残药流失,降低了安全隐患。

In rainy season,the water content of blasting hole is serious in Manjiazhai mining area of Yunnan Hualian zinc indium Ltd.When using the finished emulsion explosive,the blasting quality is re-duced because borehole is not smooth and in case of structural plane deviation affects boreholes cavities and boreholes.In order to solve the hole charge problem,through a lot of tests,explosives filled hole was solved by using the orange film bags of explosives and then take the hoisting method.This method can improve the single hole charge,the blasting quality and excavator shovel loading efficiency.Annual sav-ings of two blasting cost is 1.25 million.At the same time,this method can also avoid the loss due to re-sidual propellant hole appears,reduce security risks.