茶叶风选机优化研究

doi:10.13305/j.cnki.jts.2013.06.004

Abstract

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:

ZHONG Jiang, HUANG Jian-hong, YANG Tao, ZHANG Xian, ZHAO Zhang-feng. Optimization Study of Tea Winnowing Machine[J]. Journal of Tea Science, 2013, 33(6): 576-583.

References 10

[1]	Qianpu Wang, Morten Chr Melaaen, Sunil R De Silva. Investigation and simulation of a cross-flow air classifier[J]. Powder Technology, 2001, 120(3): 273-280.
[2]	Eswaraiah C, Kavitha T, Vidyasagar S, et al. Classification of metals and plastics from printed circuit boards (PCB) using air classifier[J]. Chemical Engineering and Processing: Process Intensification, 2008, 47(4): 565-576.
[3]	Oon C S, Togun H, Kazi S N, et al. Numerical simulation of heat transfer to separation air flow in an annular pipe[J]. International Communications in Heat and Mass Transfer, 2012, 39(8): 1176-1180.
[4]	李洪昌, 李耀明, 唐忠, 等. 风筛式清选装置振动筛上物料运动CFD-DEM数值模拟[J]. 农业机械学报, 2012, 43(2): 79-84.
[5]	蒋帅, 李如燕, 孙可伟. 风选技术在建筑废弃物资源化中的应用[J]. 安徽农业科学, 2012, 40(25): 12605-12608.
[6]	Michael James Lee, Shahin Rahimifard.An air-based automated material recycling system for postconsumer footwear products[J]. Resources Conservation and Recycling, 2012, 69: 90-99.
[7]	Siemens Mark C, Hulick Donald E.A new grain harvesting system for single-pass grain harvest, biomass collection, crop residue sizing, and grain segregation[J]. Transactions of the ASABE, 2008, 51(5): 1519-1527.
[8]	谭春亮, 王科社, 范涛, 等. 风选机的气流场分析与优化设计[J]. 北京机械工业学院学报, 2006, 21(1): 20-23.
[9]	Maysam Saidi, Reza Maddahian, Bijan Farhanieh, et al. Modeling of flow field and separation efficiency of a deoiling hydrocyclone using large eddy simulation[J]. International Journal of Mineral Processing, 2012, 112: 84-93.
[10]	Tanvir Farouka, Bakhtier Farouka, Alexander Gutsol.Simulation of gas species and temperature separation in the counter-flow Ranque-Hilsch vortex tube using the large eddy simulation technique[J]. International Journal of Heat and Mass Transfer, 2009, 52(13/14): 3320-3333.

[1]	WANG Yonghui, WANG Duofeng, LI Xuemin, SHI Tianbin, WU Lidong, LIU Zaiguo, ZHANG Guangzhong, ZHAO Fengyun. Study on the Physicochemical Components and in Vitro Antioxidant Differences of Green Tea from Longnan, Gansu and Jinhua, Zhejiang [J]. Journal of Tea Science, 2025, 45(5): 852-864.
[2]	LI Bing, ZHU Yong, XIA Chenglong, LI Feilong, CAI Zhenyang, WU Hao. Lightweight Online Sorting Method of Milled Tea Based on Improved YOLOv5s [J]. Journal of Tea Science, 2025, 45(5): 879-897.
[3]	MENG Chao, LIANG Tao, ZHANG Xia, WANG Wanhong, DONG Huanglin, LI Ming. Research on Tea Light Complementary Mode Based on Tea Planting and Photovoltaic Power Generation [J]. Journal of Tea Science, 2025, 45(5): 898-908.
[4]	ZHOU Yide, CHEN Jialin, WU Junmei, ZHAO Hongbo, SUN Binmei, LIU Shaoqun, ZHENG Peng. Nitrogen Metabolism Genes in Tea Plant: Research Progress on the Environmental Stress Adaptation Mechanism and Breeding Application [J]. Journal of Tea Science, 2025, 45(4): 545-558.
[5]	SUN Mengzhen, HU Zhihang, YANG Kaixin, ZHANG Jiaqi, ZHANG Nan, XIONG Aisheng, LIU Hui, ZHUANG Jing. Identification of Circadian Clock CsLUX Gene and Its Effects on Photosynthetic Characteristics in Tea Plants [J]. Journal of Tea Science, 2025, 45(4): 559-570.
[6]	HOU Aixiang, YANG Xiaolu, WU Wenliang, XIAO Yu, LI Shi, HUANG Yiwen, JU Rongfang. Analysis of Volatile Flavor Compounds and Microbial Diversity in Anhua Black Tea Processed by Different Fermentation Techniques [J]. Journal of Tea Science, 2025, 45(4): 637-654.
[7]	JIA Jiangming, WANG Xiang, ZHOU Yujie, WU Chuanyu, CHEN Jianneng, YU Rong, LI Yujie. Collaborative Picking Planning for A Dual-Arm Tea-Picking Robot [J]. Journal of Tea Science, 2025, 45(4): 671-686.
[8]	ZHANG Mengxue, JIANG Heyuan, WANG Weiwei, YE Shuixin. Differences in Digestive Stability of Catechins in Dry Tea and Instant Tea Powder [J]. Journal of Tea Science, 2025, 45(4): 699-711.
[9]	ZHANG Kaili, LI Xiang. Advances on Sensory Characteristics and Physiological Activity of Qingzhuan Brick Tea [J]. Journal of Tea Science, 2025, 45(3): 361-378.
[10]	GE Chenxi, TANG Desong, ZHANG Lin, FU Shangwen, ZHANG Yingbin, LIANG Huiling. Evaluation of Aroma Enhancement Effect of Jasmine Hydrosol on Jasmine Tea and Its Influencing Factors [J]. Journal of Tea Science, 2025, 45(3): 465-484.
[11]	CHEN Yuan, AN Huimin, HUANG Yiwen, JIANG Youcang, YING Jiaqi, WANG Sirui, LI Shi, LIU Zhonghua, HUANG Jian'an. Unveiling the Characteristic Taste Quality Compounds of Jasmine Tea Based on Electronic Tongue and Metabolomics Techniques [J]. Journal of Tea Science, 2025, 45(3): 485-496.
[12]	SHEN Shuai, REN Ning, ZHENG Hang, YU Guohong, CHEN Zhidong. Design and Testing of Tea Garden Crawler Plowing Machine [J]. Journal of Tea Science, 2025, 45(2): 273-283.
[13]	JIA Zhijun, JIANG Jiayin, XU Jiajun, LI Yang, DONG Chunwang, SONG Wentao, LI Kai, WEI Chizhang, YAO Yuchen, YAO Lijian, YANG Zidong, LIU Haoyang, MA Rong. Optimization and Testing of Tea Garden Biomimetic Tillage Machine Based on DEM-MBD Coupling Algorithm [J]. Journal of Tea Science, 2025, 45(2): 284-302.
[14]	CHENG Haiyan, TU Linyue, CHEN Lin, XU An'an, XIE Hengtong, XU Ping. Spatiotemporal Changes of Amino Acids and Polyphenols in Leaves and Stems during Tea Withering [J]. Journal of Tea Science, 2025, 45(2): 303-317.
[15]	ZHANG Peng, HUANG Yan, WEI Chengjiang, ZHENG Zhiqiang, WU Weiwei, ZHENG Changkun, SHEN Weiwei, YU Yingjie, LIN Fuming, SUN Weijiang. The Study of Volatile Components in Three Scented Types of Black Tea Based on HS-SPME-GC-MS and Molecular Docking Technology [J]. Journal of Tea Science, 2025, 45(2): 318-332.

Optimization Study of Tea Winnowing Machine

PDF (PC)

Knowledge

Cited

Abstract

Cite this article

share this article

References 10

Related Articles 15

Metrics

Comments

Recommended 0