Uniform drying device for yellow tea processing

Abstract

The invention discloses a uniform drying device for yellow tea processing, and relates to the technical field of yellow tea processing, the uniform drying device comprises a feeding cylinder and a machine box body, the top of the machine box body is provided with a heaping for yellowing and liquid adding assembly, the machine box body is internally provided with a residue removing assembly for removing tea leaf residues, the side part of the residue removing assembly is provided with a vertical supporting plate body, and a discharging pipe is arranged below the vertical supporting plate body; a material blocking disc assembly is arranged on the material discharging pipe, the material discharging pipe downwards penetrates through the cover plate and extends into the outer cylinder body, an inner cylinder body is rotationally arranged in the outer cylinder body, a heating pipe is arranged in the inner cylinder body, a material guiding shell is arranged on the outer wall of the inner cylinder body, material guiding blocks are arranged on the inner wall of the outer cylinder body opposite to the material guiding shell body at intervals, and a material discharging funnel is fixedly arranged at the lower end of the outer cylinder body; and a movable plate assembly is arranged on the discharging hopper, and an air pipe is arranged on the side wall of the outer barrel. The operation requirements of heaping for yellowing and drying processing of large-batch yellow tea are met, a damp and hot condition is provided for heaping for yellowing of the yellow tea, comprehensive decoloration change of the yellow tea is achieved, and the phenomenon that the yellow tea is incomplete in color change or locally blackened is avoided.

Description

technical field [0001] The invention relates to the technical field of yellow tea processing, in particular to a uniform drying device for yellow tea processing. Background technique [0002] Yellow tea is a unique tea in my country, which belongs to light fermented tea, and its processing technology is similar to that of green tea. But it is different from green tea. Before or after the drying process, a "suffocating yellow" process is added to promote the partial oxidation of polyphenols, chlorophyll and other substances, thus forming the unique quality characteristics of yellow tea. The production process of yellow tea is as follows: fresh leaves are greened, rolled, stuffed and yellowed, and dried. Yellow tea’s greening, rolling, drying and other processes are similar to those of green tea. The most important process is dull yellowing, which is the key to forming the characteristics of yellow tea. Tea leaves are wrapped with cloth or paper while they are hot, and left ...

AI Technical Summary

Problems solved by technology

[0004] In the process of traditional yellow tea processing, the yellowing operation of yellow tea is simply the process of using the tea leaves that have been greened or rolled or baked, wrapped with cloth or paper while they are hot, and left to make them yellow. The operation method has the following technical problems: 1. The degree of mechanization and automation is relatively low. The veneering operation and the drying operation are carried out separately, and the artificial veneering method is labor-intensive and low in labor efficiency, making it difficult to satisfy large quantities of yellowing. The actual needs of tea processing in batches and automated production, the labor cost is high, and the economic burden on the enterprise is heavy; 2. During the operation process of stacking and stuffing the tea leaves, the tea is heated unevenly, and the degree of humidity and heat is inconsistent, which leads to the slow progress of tea stuffing and yellowing At the same time, the effect and degree of dull yellowing are not consistent, the color of the tea leaves gradually changes in color, and there is a significant difference in the color of the yellowed tea leaves accumulated inside and outside, which affects the quality of yellow tea and the taste of tea soup; 3. Stuffy During the yellowing process, it is greatly affected by climate and external environmental factors. The unstable external hot and humid environment is difficult to provide a conditional basis for the muffled yellowing reaction of yellow tea, which makes it difficult to guarantee the processing quality of muffled yellow tea, resulting in a decline in the quality of yellow tea and economical 4. The existing yellow tea stuffing operation cannot realize the all-round decolorization of yellow tea, and the pigment material cannot fully contact with the external hot and humid environment in a short period of time, resulting in discoloration of some yellow teas after stuffing yellow. Complete or partial blackening, therefore, need to be improved

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