TIAN Xiangzhou¹，HE Fuqiang¹，CHEN Fajiang²，HUANG Yizhou¹，ZHAN Luxin¹

(1.College of Mechanical Engineering, Guizhou University, Guiyang 550025 ,China;2.Guizhou Jingmu Building Materials Co., Ltd., Guiyang 550025，China)

Abstract：Using sawdust, magnesium chloride, magnesium oxide and brine as stirring raw materials, and polyvinyl chloride tree powder and urea as additives, the influence of the installation angle of the vertical shaft planetary mixer blade and the speed of the stirring shaft on the mixing quality was studied.The EDEM software was used to simulate mixing process of mixed materials and the mixing quality of materials under different blade installation angles and stirring shaft rotation speeds were studied.By comparing and analyzing the discrete coefficient of magnesium chloride particles under the same conditions, the optimal stirring parameters were determined.The mechanical properties of the wooden plates were verified.The results show that the optimal mixing quality is the best when the blade installation angle of the vertical shaft planetary mixer is 45° and the stirring shaft speed is 30 r/min.

Keywords：vertical shaft planetary mixer；discrete element method；blade installation angle；rotating speed of stirring shaft；discrete coefficient

Received：2022-08-23，Revised：2022-10-08,Online：2023-01-20 11:01。

Funding Project：贵州省科技计划项目，编号：黔科合支撑[2020]2Y067。

First Author：田祥州(1996—)，男(土家族)，硕士研究生，研究方向为多体动力学。E-mail：15121618276@163.com。

Corresponding Author：贺福强(1975—)，男，副教授，博士，研究方向为机械视觉检测与模式识别技术、智能制造技术。E-mail：1120351604@qq.com。