两自由度往复式滚筒筛茶叶筛分模拟研究

doi:10.13305/j.cnki.jts.2016.06.008

Abstract

Abstract: Taking Yongxi Huoqing tea as research object, the EDEM based on the discrete element method was used for simulation study the influence of the kinematic and structure parameters of reciprocating roller screen with two degrees of freedom on screening efficiency for tea leaves. The effects of roller inclination, reciprocating angle and reciprocating frequency on screening was analyzed when the roller was on reciprocating rotational movement. It was found that the ideal parameters of the roller were: 4-6° (inclination), 2-2.5 Hz (reciprocating frequency) and 60-75° (reciprocating angle). Furthermore, an X-direction excitation was added to the roller screen to study the effects of excitation frequency, amplitude and reciprocating angle on the screening process by orthogonal test. The simulation results showed that the ideal parameters of the roller screen were: 8 Hz (excitation frequency), 8 mm (amplitude) and 70° (reciprocating angle) under screening mode with two degrees of Freedom.

Key words: Yongxi Huoqing tea, reciprocating roller screen, two degrees of freedom, screen, discrete element method

CLC Number:

TS272.3

WANG Chengjun, ZHANG Tianyu, ZHENG Yan, CHEN Jinyan, HU Song. Simulation Study on the Screening of the Reciprocating Roller Screen with Two Degrees of Freedom for Tea[J]. Journal of Tea Science, 2016, 36(6): 613-620.

References 16

[1]	张皓臻, 肖宏儒, 梅松, 等. 茶叶分选技术的现状和未来[J]. 农业工程, 2014, 4(5): 59-63.
[2]	Jeffrey W S, Rodfers M H, James F S.The place of the trommel in resource recovery[C]//The American Society of Mechanical Engineers. Proceedings of 1992 National Waste Processing Conference: Solid waste processing into the 21st century. New York: American Society of Mechanical Engineers, 1992: 1-8.
[3]	杨茂成. 滚筒圆筛机工艺设计计算[J]. 贵州茶叶, 1994, 1(77): 34-36.
[4]	唐萌. 茶园名优茶机械化采摘集成技术研究[D]. 杭州: 浙江大学, 2007.
[5]	张兰兰. 机采名优茶鲜叶分级技术及分级研究[D]. 杭州: 浙江大学, 2012.
[6]	胡永光, 李建钢, 陆海燕, 等. 等直径滚筒式茶鲜叶分级机设计与实验[J]. 农业机械学报,2015, 46(增刊): 116-121.
[7]	谢俊, 张晓庆, 王成军, 等. 三平移并联茶叶筛分机构设计及运动仿真[J]. 工程设计学报学报, 2012, 19(3): 208-212.
[8]	张晓庆. 基于混联机构的茶叶筛分机的设计与研究[D]. 镇江: 江苏大学, 2013.
[9]	王南, 周海栋, 崔国华, 等. 基于三转动并联机构的茶叶筛分装置运动学性能研究[J]. 工程设计学报, 2014, 21(3): 266-272.
[10]	王成军, 刘琼, 马履中, 等. 棉籽颗粒在三自由度混联振动筛面上的运动规律[J]. 农业工程学报, 2015, 31(6): 49-55.
[11]	贾富国, 姚丽娜, 韩燕龙, 等. 基于离散元法的糙米匀料盘仿真优化设计[J]. 农业工程学报, 2016, 32(4): 235-241.
[12]	赵历. 组合椭球颗粒模型的三维离散单元方法的研究[D]. 长春: 吉林大学, 2010.
[13]	董永泓. 涌溪火青茶机制工艺标准[J]. 茶叶机械杂志, 2001(2): 20-21.
[14]	Munjiza A, Latham J P, John N W M. 3D dynamics of discrete element systems comprising irregular discrete elements-integration solution for finite rotations in 3D[J]. International Journal for Numerical Methods in Engineering, 2002, 56(17): 33-55.
[15]	Frederik Elskamp, Harald Kruggel-Emden, Manuel Hennig, et al.Benchmarking of process models for continuous screening based on discrete element simulations[J]. Minerals Engineering, 2015(83): 78-96.
[16]	Kruggel-Emden H, Wirtz S, Scherer V.A study on tangential force laws applicable to the discrete element method (DEM) for materials with viscoelastic or plastic behavior[J]. Chemical Engineering Science, 2008, 63(6): 1523-1541.

Simulation Study on the Screening of the Reciprocating Roller Screen with Two Degrees of Freedom for Tea

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