天然焦赋存区巷道掘进爆破的准爆可靠性  

Research on Drivage Blasting Safe Firing Reliability of Mineral Coke Bucket

作　　者：张正法[1] 孙德宝[1] 徐海峰[1] 张计璨[1] 

机构地区：[1]煤炭科学研究总院爆破技术研究所,安徽省淮北市235039

出　　处：《煤矿爆破》2007年第4期15-17,共3页Coal Mine Blasting

摘　　要：天然焦赋存区的巷道掘进爆破经常出现电雷管拒爆问题,本文通过对天然焦的组份、成因及电性质分析和试验,发现自然天然焦是电的良导体,对裸露的雷管脚线或电爆网路接头有短路作用,针对这一影响因素制定了解决措施,使问题得以有效解决,显著改善了爆破效果。The misfire of detonator is often appeared in the drivage blasting of the natural coke bucket. The author discovers that natural mineral mineral coke is well conduct of electricity, which can short-circuit the bare detonation leg wire and the terminal of the electrical blasting network, through analyzing and testing the mineral coke component, cause of the formation and electrical property. According to the effect factors, solutions is made, which solves the problem and improves the blasting effectiveness.

关 键 词：天然焦 掘进爆破 电雷管 准爆可靠性 

分 类 号：TD263.3[矿业工程—矿井建设]