江苏大学学报（自然科学版）2025，Vol.46Issue(3)：309-315,7.DOI:10.3969/j.issn.1671-7775.2025.03.008
基于EDEM的秸秆螺旋筛分性能仿真及试验
Simulation and experiment on screening performance of straw screw sieving based on EDEM
摘要
Abstract
To improve the work efficiency and screening yield in the circular crushing process,taking tomato straw as example,the screening performance of the spiral screening device was investigated.The numerical simulation and experimental research by EDEM software were conducted to analyze the effects of spiral speeds and charging speeds on the screening performance of spiral.The results show that with the increasing of spiral speed,the screening rate is increased with latter decreasing,and the output is gradually increased with latter unchanging.With the increasing of charging speed,the screening rate is gradually decreased,and the output is gradually increased.Increasing the spiral speed can improve the sieving flow condition of crushed straw particles and reduce the sieving time of unit straw particles.The high sieving rate of 37.36％and high yield of 139.89 kg/h can be obtained when the spiral speed is 180 r/min.Increasing the charging speed can obstruct the flow of raw materials in the sieving process,which makes the sieving rate decrease.The high material concentration brings high yield,while the yield growth rate is gradually decreased.The inlet mass flow rate of 0.05 kg/s can control the screening rate more than 35％with high output,and the simulation results are verified by the experiments.关键词
番茄秸秆/EDEM离散元分析/秸秆循环粉碎/螺旋筛分/筛分过筛率Key words
tomato vine straw/EDEM discrete element analysis/straw cyclic pulverization/screw sieving/sieve pass rate分类
农业工程引用本文复制引用
张西良,赵修晶,徐云峰,陈成,任利胜,邱士军..基于EDEM的秸秆螺旋筛分性能仿真及试验[J].江苏大学学报（自然科学版）,2025,46(3):309-315,7.基金项目
国家自然科学基金面上资助项目(32071900) （32071900）
江苏省博士后科研资助计划项目(2021K086A) （2021K086A）
