Design and Process Optimization of a Continuous Production Line on Needle-type Premium Green Tea

CHEN Gensheng; YUAN Haibo; XU Yongquan; JIANG Yongwen; DENG Yuliang; YU Liaoyuan; YU Shuping; YIN Junfeng

doi:10.13305/j.cnki.jts.2016.02.004

Journal of Tea Science >

2016 , Vol. 36 >Issue 2: 139 - 148

DOI: https://doi.org/10.13305/j.cnki.jts.2016.02.004

Design and Process Optimization of a Continuous Production Line on Needle-type Premium Green Tea

CHEN Gensheng ,
YUAN Haibo ,
XU Yongquan ,
JIANG Yongwen ,
DENG Yuliang ,
YU Liaoyuan ,
YU Shuping ,
YIN Junfeng

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1. College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China;
2.Tea Research Institute, Chinese Academy of Agricultural Sciences, Key Laboratory of Tea Processing Engineering of Zhejiang Province, National Engineering Technology Research Center of Tea Industry, Hangzhou 310008, China;
3. Zhejiang Agricultural Technology Extension Center, Hangzhou 310020, China;
4. Kaihua Special Local Product (Tea) Bureau, Kaihua 324300, China

Received date: 2015-11-30

Online published: 2019-08-23

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Abstract

According to the quality and processing characteristics of needle-type premium green tea, a strongly practicable, energy-efficient and highly qualified needle-type premium green tea continuous production line which consisted of the fresh tea leaves artificial spreading machine, electromagnetic heat roller fixation machine, multiphase continuous fixation-shaping machine, rubbing machine, far-infrared raising fragrant machine and other energy efficient facilities was organized. The processing procedures of the continuous production line including spreading, fixation, fixation-shaping and baking were investigated and a complete set of processing technology about the line on needle-typepremium green tea was proposed. The results showed that the best process parameters were: temperature at 18-25℃ and humidity at 60%-90% for fresh tea leaves spreading, the leaf weight of 125 kg·h^-1, baking temperature at 270℃ and time of 65 second for the fixing, 240℃(38 Hz）, 210℃(40 Hz) and 180℃(45 Hz) for the multiphase continuous fixation-shaping, and drying temperature at 40-55℃, baking temperature at 100℃, speed of 30 kg·h^-1 for the rotary continuous drying.

Key words： needle-typepremium green tea; continuous production; electromagnetic heat roller fixation machine; far-infrared raising fragrant machine; artificial spreading of fresh tea leaves mechanical

Cite this article

CHEN Gensheng , YUAN Haibo , XU Yongquan , JIANG Yongwen , DENG Yuliang , YU Liaoyuan , YU Shuping , YIN Junfeng . Design and Process Optimization of a Continuous Production Line on Needle-type Premium Green Tea[J]. Journal of Tea Science, 2016 , 36(2) : 139 -148 . DOI: 10.13305/j.cnki.jts.2016.02.004

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