QIN Deyue¹, RONG Wenjie^1,2, LI Baokuan¹

(1.School of Metallurgy, Northeastern University,Shenyang 110819, China;2.State Key Laboratory of Process Automation in Mining & Metallurgy, Beijing 102628, China)

Abstract: In order to improve the mixing effect of particles, this paper proposed to add free moving baffle and constrained moving baffle in self-designed rotating drum. The effects of baffle shape, baffle size, restrained rope length and restrained rope elasticity on the mixing of particles at different rotational speeds were investigated. The intensity of segregation was used to determine the mixing effect of binary particles. The results show that both the free moving baffle and the constrained moving baffle promote the particle mixing when the rotational speed is 30 r/min. In the experiment of changing the shape of the baffle, it is found that the square baffle play the most obvious mixing effect. The particle mixing effect is better in the case of non-elastic restrained rope than elastic one. When the rotational speed increase to 60 r/min, it is found that only the 80 mm cross-shaped constrained moving baffle promotes the mixing of particles in the rotating drum.

Keywords: rotating drum; constrained moving baffle; rotational speed; particle mixing

中图分类号：TK05

文献标志码：A

文章编号：1008-5548(2021)05-0085-09

DOI:10.13732/j.issn.1008-5548.2021.05.011

收稿日期： 2021-02-21，修回日期：2021-03-23，在线出版时间：2021-08-16 16:08。

基金项目：国家自然科学基金项目， 编号： 51934002； 矿冶过程自动控制技术国家重点实验室开放基金项目， 编号： BGRIMM-KZSKL-2020-10。

第一作者简介：秦德越(1998—)，男，硕士研究生，研究方向为颗粒动力学。E-mail：qdy1998@126.com。

通信作者简介：李宝宽(1963—)，男，教授，博士生导师，研究方向为气固多相反应及模型化。E-mail：libk@smm.neu.edu.cn。