Automatic tea fixing machine and method

Abstract

The invention discloses an automatic tea fixing machine and method. The automatic tea fixing machine comprises a frame, a rotary drum, an electric heating pipe, a support mechanism, an inclination angle adjuster, an air heater, a hot air pipe, a motor, a spiral propeller, a humidity-discharging fan, a winnowing machine and a transmission mechanism, wherein the spiral propeller is arranged at the inlet of the rotary drum; a guide-leaf plate is arranged inside the rotary drum; the electric heating pipe is fixed on the outer wall of the rotary drum; the air heater is arranged on the top of the frame, and is connected with the rotary drum through the hot air pipe; and a waste-heat recoverer is arranged on the top of the frame, and is connected with the humidity-discharging fan through a wasteheat recovering pipeline. During fixing, heating fixing and hot air fixing are combined on the inner wall of the rotary drum, and an automatic loading and unloading system and a waste heat recoveringsystem are adopted for assisting. The invention has the advantages of high automatic degree, automatic control over leaf feeding, fixing, temperature control, discharging and cooling, reduction in labor intensity, saving in labor force and avoidance of unstable fixing quality caused by random manual operation.

Description

technical field [0001] The invention relates to an automatic greening machine and a greening method for tea leaves, belonging to the field of tea preparation. Background technique [0002] At present, the tea degreening equipment used in my country is mainly three categories: drum degreening machine, hot air degreening machine, and steam degreening machine, each of which has its own advantages and disadvantages. [0003] The barrel of various types of drum continuous greening machine is made of steel plates with a thickness of 4~5mm, which are rolled and welded in sections. 6 spiral guide vane plates with a thickness of 1.5mm, the guide vane plates are divided into 2~3 sections, and the guide vane angles of each section are different, in order to make the tea advance in different sections at different speeds and meet the requirements of the greening process. The drum fixing machine adopts the heat transfer method of the cylinder wall and has a simple structure, which is dee...

AI Technical Summary

Problems solved by technology

The disadvantage of steam degreening is that it must be equipped with a boiler, and there is a lot of coal ash and dust in the production process, which is not conducive to the clean production of tea factories

Due to the stuffy effect of steam during the steaming process, although the leaf bottom and soup color of steamed green tea are better than those of fried green tea, the taste and aroma are obviously inferior to those of fried green tea.

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