A kind of tea greening machine drum

Abstract

The invention relates to the technical field of tea primary processing, especially to a drum of a tea fixation machine and an application method thereof, wherein the drum has a reasonable structure, high efficiency, an energy saving effect and high processing quality. The drum comprises a drum body; a ventilating disc is arranged at the bottom of the drum body; a rolling ring and a smoke blocking ring are installed on an outer wall; guide-leaf plates are arranged on an inner wall and comprise a feeding end guide-leaf plate arranged at a feeding end of the drum and a discharging end guide-leaf plate arranged at a discharging end of the drum, the rear part of the feeding end guide-leaf plate is connected with front guide-leaf plates, the front part of the discharging end guide-leaf plate is connected with rear guide-leaf plates, and the number of the front guide-leaf plates is greater than the number of the rear guide-leaf plates. The application method comprises a step of heating the drum of the tea fixation machine to a fixation temperature and a step of setting a rotating speed of the drum of the tea fixation machine to be 30 to 35 r / min. The drum provided by the invention has the characteristics of high thermal efficiency, capacity of assisting in rapid increase of temperature of enzyme-denatured leaves, a good dehydration effect, high output per machine hour and the like.

Description

technical field [0001] The invention relates to the technical field of primary processing of tea, in particular to a drum of a tea greening machine with reasonable structure, high efficiency and energy saving, and high processing quality. Background technique [0002] In the existing tea processing procedures, greening is the key process of primary tea production. The purpose is to use high temperature to destroy and passivate the oxidase activity in fresh tea leaves, inhibit the enzymatic oxidation of polyphenolic compounds, and maintain the color and flavor of tea leaves. There are three main methods of fixing greens: wet method, hot air method and dry method. Wet degreening uses water or steam as the medium, and the heat is transferred to the tea leaves through the medium for degreening, such as steam heat degreening machine, steam degreening machine, etc. Hot air finishing uses hot air as the heat source medium to complete the finishing task, such as hot air fixing mach...

AI Technical Summary

Problems solved by technology

[0003] There are corresponding defects in the above three deenzyming methods in actual application: wet dehydration can easily increase the water content of fresh leaves, and it needs to be dehydrated before entering the next process. It is not only troublesome but also increases production costs. Improper control will also affect tea leaves quality

Disadvantages of hot air degreening: first, the thermal efficiency is low, and the heat is directly discharged to the atmosphere, resulting in heat loss; second, the aroma of the decapitated leaves is insufficient

The disadvantages of dry degreening are: due to the defects in the drum structure design of the existing degreening machine, the uniformity of fresh leaf degreening is poor, the water content is high, the smell of water is heavy, the strips are flat, soft, lumpy and uneven, Uneven color; poor handling will cause scorched edges and burst spots on the fresh leaves after greening, resulting in burnt smoke and affecting the quality of tea

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