三七球磨法超微粉碎运动仿真研究  

Dynamic simulation and experimental research on superfine pulverization of notoginseng by ball milling

作　　者：周玉梅[1] 黄志洪[1] 韦鸿钰[1] 朱立学[1] 骆少明[1] 

机构地区：[1]仲恺农业工程学院机电工程学院,广东广州510225

出　　处：《食品与机械》2016年第1期92-95,99,共5页Food and Machinery

基　　金：广东省自然科学基金重点项目(编号:S2013020012890);广东省科技计划项目(编号:2012B020313006)

摘　　要：采用PFC3D软件建立球磨介质运动的三维离散元数值模型,赋予不同的边界条件,对三七球磨的运动过程进行仿真,分析磨球的运动情况和球体之间的平均接触力,研究不同的球磨因素对三七球磨法超微粉碎效果的影响,并通过单因素试验研究验证仿真结果。结果表明,影响三七球磨粉碎的关键因素依次为转速>球料比>中小球比,对应的最佳水平为:转速500r/min,球料比81,中小球比14,为三七球磨法超微粉碎回归正交试验设计给出了因素水平参考范围,提供了一种新思路。Three dimensional discrete element numerical model was established by PFC3D with different boundary conditions, the grinding process was simulated, and the average contact force between balls was also analyzed. The effects of different milling factors on the superfine pulverization of notoginseng were investigated, and the simulation results were proved through the single factor experi ments. The results showed that the order of key factors, which affected the milling process was rotation speed, ball material ratio and mass ratio of balls. The optimum conditions were as followed： the rotation speed of 500 r/min, hall material ratio of 8 to 1, and mass ratio of halls of 1 to 4, which provide the reference for the design of orthogonal experiments.

关 键 词：三七 球磨法 超微粉碎 运动仿真 球磨机 

分 类 号：TQ461[化学工程—制药化工]