基于EDEM的茶叶平面圆筛机仿真模拟与参数优化  

Simulation and parameter optimization of tea plane circular screening machine based on EDEM

作　　者：许全文 丁志威 尹志宏[1] XU Quanwen;DING Zhiwei;YIN Zhihong(Faculty of Mechanical and Electrical Engineering,Kunming University of Science and Technology,Kunming 650000,China)

机构地区：[1]昆明理工大学机电工程学院,昆明650000

出　　处：《包装与食品机械》2024年第2期67-74,共8页Packaging and Food Machinery

基　　金：云南省重大科技专项计划项目(2018ZC001)。

摘　　要：为解决茶叶的筛分精加工机械设备技术落后的问题,采用EDEM对茶叶平面圆筛机的筛分过程进行仿真模拟分析,以筛分效率和误筛率为评估指标,设计单因素试验验证仿真结果。采用筛分效率和误筛率为性能指标,设计正交试验得出其主要技术参数的回归方程,并利用MATLAB软件对筛网水平倾角、曲柄曲距和筛床转速等主要技术参数进行优化,最佳参数组合为筛网水平倾角5.9°,曲柄曲距37 mm,筛床转速195 r/min。试验结果表明:在最佳参数组合下,平面圆筛机的实际筛分效率和误筛率与仿真结果误差分别为1.89%和1.83%,说明仿真参数的可靠性。研究为提高茶叶平面圆筛机的筛分性能提供参考。In order to solve the problem of backward technology of tea screening and finishing machinery and equipment,EDEM was used to simulate and analyze the screening process of tea plane circular screening machine.Single factor test was designed to verify the simulation results with screening efficiency and false screening rate as evaluation indexes.The screening efficiency and false screening rate were used as the performance indexes,and the regression equation of the main technical parameters was obtained by orthogonal test.The main technical parameters such as the horizontal inclination angle of the screen,crank spacing of the crank and the rotational speed of the screen bed were optimized by MATLAB software.The optimal parameter combination was 5.9°of the horizontal inclination angle of the screen,37 mm of crank spacing of the crank,and 195 r/min of the rotational speed of the screen bed.The experimental results show that under the optimal parameter combination,the actual screening efficiency and false screening rate of the plane circular screening machine are 1.89%and 1.83%respectively,which shows the reliability of the simulation parameters.The research provides a reference for improving the screening performance of the tea plane circular screening machine.

关 键 词：平面圆筛机 EDEM仿真 正交试验 参数优化 

分 类 号：TS272.3[农业科学—茶叶生产加工]