研究了一种新型的气固或液固式高速冲击式粉碎机，可安全、高效地用于火药燃料的超细粉碎。在分析该粉碎机的结构及粉碎机理的基础上，对粉碎机内的流场进行了模拟，给出了计算结果．分析表明，这种粉碎机的粉碎效果与其腔内的粉碎销棒结构有密切的关系，合理地安排销棒将有利于粉碎机对火药燃料的超细粉碎．采用该工艺所生产的超细火药，颗粒分布均匀，性能明显得到改善，同时生产及射击的安全性也将得到提高。因此，在兵工行业得到广泛的应用． A new type of gas-solid or liquid-solid high-speed impact mill was studied, which can be used safely and efficiently for the ultrafine grinding of gunpowder fuel. Based on the analysis of the structure and the crushing mechanism of the crusher, the flow field in the crusher is simulated and the calculation results are given. The analysis shows that the crushing effect of this crusher is closely related to the crushing pin structure in its cavity. Reasonably arranging the dowel rods will be beneficial to the crushing of the propellant fuel by the crusher. Produced by the process of ultra-fine gunpowder, particles are evenly distributed, the performance has been significantly improved, while production and shooting safety will also be improved. Therefore, the military industry has been widely used.