火炸药学报2025，Vol.48Issue(6)：583-590,8.DOI:10.14077/j.issn.1007-7812.202411004
HMX/Al颗粒重力翻滚过程中的抛洒混合行为
Sprinkle Mixing Behavior of HMX/Al Particles during Gravity Rolling Process
摘要
Abstract
Aiming at the current problems of poor mixing efficiency and blurred safety boundaries of energetic powders,the motion and load changes of HMX/Al energetic powders during paddle free mixing were simulated.The influence of process pa-rameters such as roller inclination angle and rotation speed on the uniformity of energetic powder mixing and process safety was analyzed,which provides the reference for the efficient and safe mixing technologies of energetic materials in the future.The results indicate that during the rotation and mixing process of the roller,the uniform distribution of each component is mainly a-chieved through a cyclic process of"scattering falling dispersion"under the action of the roller plate structure.At the same time,increasing the radial height and circumferential quantity of the plate can effectively improve the scattering height and fre-quency of the powder.Also,reducing the radial inclination angle of the roller also helps to obtain a larger velocity difference to enhance the relative motion between HMX and Al particles,thereby improving the mixing efficiency and quality of the pow-der particles.In addition,by adjusting the radial inclination angle and axial speed of the roller,the maximum external load of HMX and Al particles can be controlled within the range of 3-15 N,which more likely leads to higher mixing efficiency and quality while improving process safety.关键词
材料科学/无桨重力混合/HMX/Al/含能颗粒/混合均匀性/离散元模拟/重力抛洒Key words
material science/paddleless gravity mixing/HMX/Al/energetic particles/mixing uniformity/discrete element simulation/gravity scattering分类
军事科技引用本文复制引用
王苏炜,王重阳,宗胡曾,肖磊,郝嘎子,郭虎,陈轲,姜炜..HMX/Al颗粒重力翻滚过程中的抛洒混合行为[J].火炸药学报,2025,48(6):583-590,8.基金项目
中央高校基本科研业务费专项资金(No.30923011018) （No.30923011018）
