Abstract
Objective: To determine the precise quantitative relationship between screening efficiency and motion parameters for reciprocating vibrating screen, and to obtain the movement parameters with the optimal screening efficiency. Methods: Rocky was adopted to accurately simulate the movement behavior for wheat grain and wheat stem in the screening process, many factors orthogonal simulation test was used to investigate the effect of vibration frequency, amplitude, vibrating direction angle and screen surface inclination angle on screening efficiency. Results: The movement behaviors of wheat in the screening process was consistent with the theory analysis, which verified the correctness and feasibility of numerical simulation using Rocky. The vibration frequency, amplitude, vibrating direction angle and screen surface inclination angle have significant influence on the screening efficiency, and there is significant interaction between these motion parameters. The optimal motion parameter combination was the vibration frequency of 10 Hz, the amplitude of 2 mm, the vibration direction angle of 45° and the screen surface inclination angle of 0°. Conclusion: A regression model reflecting the quantitative relationship between motion parameters of and screening efficiency for reciprocating vibrating screen was established, and the optimal motion parameter combination of reciprocating vibrating screen was obtained.
Publication Date
4-25-2023
First Page
63
Last Page
67,80
DOI
10.13652/j.spjx.1003.5788.2022.80361
Recommended Citation
Ning, REN; Zhong-ying, WANG; Xiao-li, BAI; and Wen-bin, WU
(2023)
"Motion parameter optimization of reciprocating vibrating screen based on discrete element method,"
Food and Machinery: Vol. 39:
Iss.
2, Article 10.
DOI: 10.13652/j.spjx.1003.5788.2022.80361
Available at:
https://www.ifoodmm.cn/journal/vol39/iss2/10
References
[1] 朱珊珊, 武文斌, 贾华波, 等. 国外粮食清理往复直线振动筛的技术现状及发展[J]. 粮食加工, 2016, 41（1）: 47-49.
[2] 李文静, 刘引, 侯守峰, 等. TQLZ自衡振动筛疲劳分析[J]. 粮食加工, 2018, 43（3）: 57-60.
[3] 王中营, 任宁, 武文斌, 等. 基于离散元法的往复振动筛筛分效果研究[J]. 农机化研究, 2016, 38（1）: 33-38.
[4] 易启伟. 往复振动筛物料运动参数的计算仿真[J]. 武汉工业学院学报, 2005, 24（4）: 50-52.
[5] 王秉. 基于DEM离散元技术的玉米直线振动筛仿真分析[J]. 食品与机械, 2021, 37（10）: 89-92.
[6] 于建群, 付宏, 李红, 等. 离散元法及其在农业机械工作部件研究与设计中的应用[J]. 农业工程学报, 2005（5）: 1-6.
[7] 王立军, 宋良来, 冯鑫, 等. 谷物联合收获机筛分装置研究现状与发展分析[J]. 农业机械学报, 2021, 52（6）: 1-17.
[8] IWASHITA K, ODA M. Micro-deformation mechanism of shear banding process based on modified distinct element method[J]. Powder Technology, 1999, 109（1）: 192-205.
[9] 朱晓蒙, 蔡晓兰, 周蕾, 等. 离散元软件EDEM在矿冶工程中的应用与研究[J]. 软件导刊, 2021, 20（12）: 93-98.
[10] 李云峰, 李云聪. 基于Rocky DEM的矿用刮板输送机的调直方法[J]. 矿业研究与开发, 2020, 40（12）: 148-152.
[11] 曾乙伦, 甯尤军. 直线振动筛筛分过程与效果的动力学模拟分析[J]. 机械设计与研究, 2020, 36（2）: 163-168.
[12] XIA H H, TONG X, LI Z F, et al. DEM-FEM coupling simulations of the interactions between particles and screen surface of vibrating screen[J]. International Journal of Mining and Mineral Engineering, 2017, 8（3）: 250-263.
[13] MA Z, LI Y M, XU L Z, et al. Dispersion and migration of agricultural particles in a variable-amplitude screen box based on the discrete element method[J]. Computers and Electronics in Agriculture, 2017, 142: 173-180.
[14] 李永祥, 李阳, 王明旭, 等. 基于EDEM的大产量原粮振动清理筛筛分效果分析[J]. 中国油脂, 2018, 43（5）: 157-160.
[15] 张舰. 基于离散元法的曲柄连杆机构振动筛筛分模拟与试验研究[D]. 杨凌: 西北农林科技大学, 2018: 39-41.
[16] FENG Y, YUAN Z R. Discrete element method modeling of granular flow characteristics transition in mixed flow[J]. Computational Particle Mechanics, 2020, 8（6）: 21-34.
[17] Rocky DEM: Themost powerful particle simulation software. [2022-08-11]. https://rocky.esss.co/.
[18] 王宪良, 钟晓康, 耿元乐, 等. 基于离散元非线性弹塑性接触模型的免耕土壤参数标定[J]. 农业工程学报, 2021, 37（23）: 100-107.
[19] 金钊. 玉米秸秆捡拾制粒机输送除土装置的仿真与试验[D]. 沈阳: 沈阳农业大学, 2021: 25-27.
[20] 王豪东, 阮竞兰, 原富林. 基于EDEM的回转组合多层筛筛选过程的离散元分析[J]. 中国油脂, 2019, 44（6）: 151-157.
[21] 阮竞兰, 武文斌. 粮食机械原理及应用[M]. 北京: 机械工业出版社, 2017: 14.