Collaborative optimization of screening efficiency and screen surface load-PartⅠ:Modeling and evaluation

作     者：Xuhui Xia Weimin Jing Zelin Zhang Lei Wang Huan Zhang Xuhui Xia;Weimin Jing;Zelin Zhang;Lei Wang;Huan Zhang

作者机构：Key Laboratory of Metallurgical Equipment and Control TechnologyWuhan University of Science and TechnologyWuhan 430081China 

出 版 物：《Particuology》 (颗粒学报（英文版）)

年 卷 期：2022年第20卷第10期

页      面：77-87页

核心收录：

学科分类：08[工学] 0817[工学-化学工程与技术] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：supported by the Unveils Major Projects of Hubei Province(2019AEE015) Graduate Innovation and Entrepreneurship Fund of Wuhan University of Science and Technology(JCX2020030). 

主　　题：Vibrating screen Discrete element method Screening efficiency Screen surface load Collaborative optimization 

摘      要：The screen surface load(SSL)caused by granular materials is an important factor affecting the structural performance of vibrating screen.Based on virtual experiment,a multi-objective collaborative optimiza-tion method is proposed to control the SSL under high screening efficiency(SE)in this work.Firstly,a DEM model was established to study the influence of process parameters on SE and SSL.Secondly,the NSGA-Ⅱ(Non-dominated Sorting Genetic Algorithm)was employed to optimize the screening parameters with both SE and SSL as targets.The optimization method proves to be effective implementing on a linear vibrating screening.With SE equals to 98.5%,the SSL optimizable range is 39.2%.While compromising the SE to 88.7%,the SSL optimizable range improves to 48.6%.The result shows that the collaborative optimization could effectively control the SSL while maintaining a high SE,which is of great significance to improve the service life of screen surface and screen body.