龙首矿的矿石是赋存于超基性岩体中,爆破后易造成粉矿。在放矿过程中,漏斗里有时产生悬顶,溜井里有时产生堵塞,工作人员必须钻入漏斗、溜井里进行爆破,很不安全。为了解决这一问题,我矿吸取了国内的一些矿用火箭炮的经验、教训,试制成功一种安全性好、结构简单、体积小、加工方便、操作简单的矿用安全火箭炮。经过三年来几百炮的实践证明,该种火箭炮是比较成功的,很受广大工人的欢迎。矿用安全火箭炮(图1))是由发射装置、火 Long Shou ore is hosted in ultramafic rocks, blasting easily lead to powder ore. In the process of draining, the funnel sometimes produces a suspended roof, which sometimes leads to clogging. The worker must drill into the funnel and blasting in the slip well is unsafe. In order to solve this problem, our mine has learned some experiences and lessons from some domestic mining rockets, and successfully trial-produced a mining safety rockets with good safety, simple structure, small volume, convenient processing and simple operation. After several hundred years of practice in three years, the rocket launchers have proved to be more successful and are very popular with the workers. Mine Safety Rocket Launcher (Figure 1)) is fired by a launcher, fire