编辑同志: 去年11月6日,我县铅锌矿使用河北省武安县化工厂制造的导火线放炮,发生了速燃爆炸事故,炸死、炸伤各一人。 为了查清事故原因,我们组织本县其他矿山的技术人员和老矿工进行现场分析。在13次导火线燃速试验中,出现了透火、爆炸10次,燃速过慢三次,燃到30公尺时熄火一次 Editor’s Comrade: Last November 6, the lead-zinc mine in our county was fired at the fuse made by the Wu’an County chemical plant in Hebei Province, causing a quick fire and explosion accident and killing and wounded one each. In order to find out the cause of the accident, we organized the technical personnel of other mines in the county and the old miners to carry out on-site analysis. In 13 firewire burnout tests, there was a flash of fire, an explosion of 10 times, a burning rate of too slow three times and a flameout of 30 meters