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1964～1965年期间,我矿在地下开采的浅眼爆破中,曾先后发生了三次炸药自动爆炸事故。炸药自爆的特征是装药(硝酸铵炸药)后半小时左右,炮眼内徐徐有白烟冒出,继而有大量棕色气体突然喷出,紧接着就发生爆炸声。这种炸药自爆现象,在我矿生产斗争史上是前所未有过的。开始,我们以为引起炸药自爆的主要原因是矿石温度过高(炮眼温度为70～80℃),因而单纯从炮眼降温入手,做了喷水冷却试验。实践证明,这种看法是不全面的,没有找到问题的实质。
During 1964 ~ 1965, my mine had three explosions automatic explosions during the shallow-hole blasting of underground mining. Explosive explosives is characterized by charge (ammonium nitrate explosives) about half an hour later, there is a white smoke inside the hole slowly, and then a large number of brown gas suddenly spurt, followed by an explosion sound. This dynamite blew phenomenon is unprecedented in the history of mine production struggle. Initially, we think that the main cause of explosives detonation is the ore temperature is too high (blasthole temperature of 70 ~ 80 ℃), so simply start cooling from the blasthole, made a water cooling test. Practice has proved that this view is not comprehensive, did not find the substance of the problem.