JIA Peiyu1，LI Zhanfu1,2，SI Qiming1，TONG Xin1
(1. School of Mechanical & Automotive Engineering, FuJian University of Technology, Fuzhou 350118, China；2. China State Construction Engineering Corporation, Fuzhou 350000, China)
Abstract: In order to improve the screening efficiency of the rotary vibrating screen, the discrete element method was used to simulate the screening process of the rotary vibrating screen, using single factor method and multi-factor orthogonal test to study the effect of various parameters on the vibration screening efficiency.The binomial regression model of screening efficiency and vibration parameters of rotary vibrating screen was established. The optimal vibration parameters were obtained and verified by experiments. The results show that the influence degree of vibration parameters on screening efficiency is vibration frequency, cone swing angle and horizontal amplitude, in sequence. The interaction degree of vibration parameters on screening efficiency is successively, the interaction between cone swing angle and vibration frequency, the interaction between horizontal amplitude and vibration frequency, and the interaction between horizontal amplitude and cone swing angle. According to the multi-factor orthogonal test, the optimal combination of vibration parameters is that the horizontal amplitude is 1.2 mm, the cone swing angle is 0.49°, the vibration frequency is 19.2 Hz, and the average screening efficiency can reach 99.486%. The reliability of performance parameter optimization method of rotary vibration screen is verified by experiments.
Keywords: rotary vibration screen；screening efficiency；vibration parameter；discrete element method；orthogonal test method
中图分类号：TD452
文献标志码：A
文章编号：1008-5548(2021)06-0127-08
DOI:10.13732/j.issn.1008-5548.2021.06.016
收稿日期： 2021-05-07，修回日期：2021-09-27，在线出版时间：2021-10-25 16:57。
基金项目：福建省自然科学基金面上项目，编号：2020J01870。
第一作者简介：贾培宇(1998—)，男，硕士研究生，研究方向为散体的高效深度筛分方法。E-mail： jpeiyu@foxmail.com。
通信作者简介：童昕(1964—)，男，教授，博士研究生导师，研究方向为计算机辅助设计。E-mail： Tongxin_hqu_fjut@163.com。
