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 experiments. 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, ball material ratio of 8 to 1, and mass ratio of balls of 1 to 4, which provide the reference for the design of orthogonal experiments.

Publication Date


First Page


Last Page





[1] 孙小玲. 三七的研究进展[J]. 云南中医中药杂志, 2005, 26(6): 44-46.
[2] 吴雪, 刘斌, 冯涛. 微射流均质机的超微粉碎机理分析[J]. 食品与机械, 2009, 25(3): 65-68.
[3] 谢怡斐, 田少君, 马燕, 等. 超微粉碎对豆渣功能性质的影响[J]. 食品与机械, 2014, 30(2): 7-11.
[4] Emden H K, Simsek E, Rickelt S, et al. Review and extension of normal force models for the Discrete Element Method[J]. Powder Technology, 2007, 171(3): 157-173.
[5] Rajamani R K, Venugopal R. 3D simulation of charge motion in tumbling mills by the discrete element method[J]. Powder Technology, 2001, 115(2): 157-166.
[6] Cleary P W. Charge behaviour and power consumption in ball mills: sensitivity to mill operating conditions, liner geometry and charge composition[J]. International Journal of Mineral Processing, 2001, 63(2): 79-114.
[7] 黄晚清, 陆阳. 应用离散单元法研究散体微观结构[J]. 四川大学学报: 工程科学版, 2007, 39(1): 69-73.
[8] 金辉霞, 柏娜, 杨格兰. 转筒内颗粒混合过程的DEM仿真研究[J]. 控制工程, 2015, 20(3): 566-570.
[9] 戚华彪, 周光正, 于福海, 等. 物质混合行为的离散单元法研究[J]. 化学进展, 2015, 27(1): 113-124.
[10] 李壮哲, 卢伟文, 黄志洪, 等. 药用三七球磨法超微粉碎的试验研究[J]. 仲恺农业工程学院学报, 2014, 27(2): 1-5.



To view the content in your browser, please download Adobe Reader or, alternately,
you may Download the file to your hard drive.

NOTE: The latest versions of Adobe Reader do not support viewing PDF files within Firefox on Mac OS and if you are using a modern (Intel) Mac, there is no official plugin for viewing PDF files within the browser window.