Welcome to Journal of Tea Science,Today is

Journal of Tea Science ›› 2013, Vol. 33 ›› Issue (6): 576-583.doi: 10.13305/j.cnki.jts.2013.06.004

Previous Articles     Next Articles

Optimization Study of Tea Winnowing Machine

ZHONG Jiang1, HUANG Jian-hong2, YANG Tao1, ZHANG Xian1, ZHAO Zhang-feng1,*   

  1. 1. Key Laboratory of E&M, Ministry of Education & Zhejiang Province, Zhejiang University of Technology, Hangzhou 310014, China;
    2. Zhejiang Shangyang Machinery Co., Ltd., Quzhou 324000, China
  • Received:2013-02-18 Revised:2013-03-26 Online:2013-12-30 Published:2019-09-04

Abstract: In order to improve the quality of tea wind-selecting, tea particles’ running track and indoor flow state of winnowing room were studied by the methods of theoretical analysis and fluid dynamics simulation, and combined with experimental verification. The results showed that the effective drift distance between particles of different weight is greater than the other air velocity distribution program when the air velocity distribution near wind crossing was set at rising from the top to the bottom. Vortexes are found in winnowing room due to structural reasons. Trajectory of tea in No. 4 and No. 5 export is more susceptible to the disturbance of the vortex because of its weight. Vortex could be decreased by using spoiler, which will also reduce the proportion of mixed tea and improve the winnowing quality.

Key words: tea winnowing machine, inlet wind speed, vortex, spoiler

CLC Number: