贾培宇1，李占福1，2，司启明1，童 昕1
（1. 福建工程学院 机械与汽车工程学院，福建 福州 350118；2. 中建海峡建设发展有限公司，福建 福州 350000）
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。
摘要：为提高旋振筛的筛分效率,采用离散元法对旋振筛的筛分过程进行仿真试验,采用单因素法和多因素正交试验法研究各个振动参数对筛分效率的影响,建立筛分效率和旋振筛振动参数的二项式回归模型,获得最优振动参数并进行实验验证。结果表明:振动参数对筛分效率的影响程度大小依次为:振动频率、圆锥摆角、水平振幅;振动参数之间的交互作用对筛分效率的影响程度依次为:圆锥摆角和振动频率的交互作用、水平振幅和振动频率的交互作用、水平振幅和圆锥摆角的交互作用;由多因素正交试验可知,最优振动参数值组合为:水平振幅为1.2 mm、圆锥摆角为0.49°、振动频率为19.2 Hz,筛分效率平均值可达99.486%;旋振筛性能参数优化方法的可靠性得到实验验证。
关键词：旋振筛；筛分效率；振动参数；离散元法；正交试验法
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
参考文献（References）：
[1]JIANGJ, LIUS Y, WENB C. Dynamics analysis, selection and calculation on the parameters of a rotary vibrating screen[J]. Transactions of the Canadian Society for Mechanical Engineering, 2016, 40(4): 563-573.
[2]段新豪, 张春华. 摇摆筛的发展现状及趋势[J]. 中国粉体技术, 2014, 20(5): 81-83.
[3]黄龙, 乔金鹏, 董良, 等. 基于DEM的变振幅等厚筛分粒群运动学特性及参数作用机制[J]. 中国粉体技术, 2019, 25(2): 25-30.
[4]XIAH H, TONGX, LIZ, et al. DEM-FEM coupling simulations of the interactions between particles and screen surface of vibrating screen[J]. Int J of Mining and Mineral Engineering, 2017, 8(3): 250-263.
[5]CHEN B, HUANG D, ZHANG F. The modeling method of a vibrating screen efficiency prediction based on KPCA and LS-SVM[J]. International Journal of Pattern Recognition and Artificial Intelligence, 2019, 33(7): 21.
[6]WANG G F, TONG X. Screening efficiency and screen length of a linear vibrating screen using DEM 3D simulation[J]. Mining Science and Technology (China), 2011, 21(3): 451-455.
[7]JELENA M，
Screening efficiency analysis of vibrosieves with the circular vibrations[J]. Civil and Environmental Engineering, 2017, 13(1): 77-83.
[8]CHEN Y H, TONG X. Modeling screening efficiency with vibrational parameters based on DEM 3D simulation[J]. Mining Science and Technology(China), 2010, 20(4): 615-620.
[9]ALKHALDI H, EBERHARD P. Particle screening phenomena in an oblique multi-level tumbling reservoir: a numerical study using discrete element simulation[J]. Granular Matter, 2007, 9(6): 415-429.
[10]LAWINSKA K, MODRZEWSKI R. Analysis of sieve holes blocking in a vibrating screen and a rotary and drum screen[J]. Physicochemical Problems of Mineral Processing, 2017, 53(2): 812-828.
[11]闫宏伟, 汪洋, 马建强, 等. 新型旋振筛电动机转速对物料运动特性的影响分析[J]. 煤炭科学技术, 2018, 46(3): 148-154.
[12]邵忍平. 旋振筛筛面空间运动轨迹影响因素及其计算机模拟[J]. 包装与食品机械, 1994(2): 1-8.
[13]杜逸穹. 旋振筛筛分过程的DEM仿真研究[D]. 沈阳: 东北大学, 2011.
[14]陈亚哲, 姚红良, 刘刚. 振动参数对筛分效率影响的实验研究[J]. 东北大学学报(自然科学版), 2019, 40(8): 1122-1126.
[15]侯勇俊, 祝敬涛, 李华川, 等. 均衡运动旋转振动筛DEM数值模拟[J]. 化工学报, 2021, 72(5): 2706-2717.
