【摘要】 基于振动磨机离散磨介群在磨筒工作空间内的应力场分布和莫尔应力圆运动学特性，进行不同物料的粉磨试验，借鉴矿物断口研究的理论和方法，研究振动磨机在不同工况条件下粉磨颗粒的断裂形貌、断口特征和粒度分布，解析离散体剪应力和正应力之间作用机制，进一步揭示振动磨机超细粉磨动力学机理，为提高粉磨效率以及颗粒形貌可控化方面提供重要参考，为超细振动磨机的大型化设计和工业级粉磨作业提供了理论数据。更多还原

【Abstract】 Based on the stress field distribution of the discrete grinding medium group of the vibration mill in the working space of the vibration mill and the kinematic characteristics of Mohr stress circle,the grinding tests of different materials were carried out.Then,based on the theory and method of the research of mineral fracture,the fracture morphology,fracture characteristics and particle size distribution of the grinding particles of the vibration mill under different working conditions were studied.In addition,the mechanism of action between the shear stress and the normal stress of the discrete body was analyzed,and the dynamic mechanism of the ultrafine grinding of the vibration mill was further revealed.It provided an important reference for improving the grinding efficiency and the controllability of the particle morphology,and theoretical data for the large-scale design and industrial-scale grinding operation of the ultrafine vibration mill.更多还原