Enzyme deactivation cylinder

Abstract

An enzyme deactivation cylinder comprises an enzyme deactivation cylinder body. Leaf guide plates are arranged on the inner wall of the enzyme deactivation cylinder body. The enzyme deactivation cylinder body comprises a high-fire enzyme deactivation section and a medium / low temperature enzyme deactivation section. The high-fire enzyme deactivation section is provided with a feed port. The medium / low enzyme deactivation section is provided with a discharge port. An enzyme deactivation device is arranged on the area between the feed port and the leaf guide plates. By means of the enzyme deactivation cylinder, enzyme deactivation leaves can sufficiently make contact with the enzyme deactivation device and the cylinder wall in order one by one, the temperature required for tea leaf enzyme deactivation is ensured, and the problems that when fresh leaves enter a cylinder main body, sudden cooling is caused to the cylinder wall of the cylinder main body, heat can not be supplied, enzyme deactivation is insufficiently conducted on the enzyme deactivation leaves, enzymatic activity of the fresh leaves can not be restrained during the first time period of enzyme deactivation, roots, stems and leaves in the tea leaves turn red, and fragrance, colors and luster of the tea leaves are influenced are solved. Tea balls are scattered, the ball forming phenomenon of the tea leaves in the enzyme deactivation process is eliminated, enzyme deactivation is uniform and sufficient, the contact time of the single leaves and the enzyme deactivation device or the enzyme deactivation cylinder body is prolonged, the contact area of the ingle leaves and the enzyme deactivation device or the enzyme deactivation cylinder body is enlarged, the tea leaf enzyme deactivation quality is ensured, productivity is improved, and heat sources and energy are saved.

Description

technical field [0001] The invention relates to the technical field of tea processing machinery and equipment, in particular to a de-greening cylinder. Background technique [0002] Finishing is one of the primary processes of green tea, yellow tea, black tea, oolong tea, pulong tea, and some black tea. The main purpose is to destroy and passivate the oxidase activity in fresh leaves by high temperature, inhibit the enzymatic oxidation of tea polyphenols in fresh leaves, evaporate part of the water in fresh leaves, make the tea soft, easy to knead and form, and emit green odor at the same time Flavor, promote the formation of good aroma, it is the key process of forming the shape and quality of green tea. [0003] With the development of industrialization, finishing has been replaced by mechanical equipment from the original labor. A kind of de-greening machine currently used in the market, the main body is a de-greening cylinder, and there are only guide vanes in the cyli...

AI Technical Summary

Problems solved by technology

Among them, the length ratio of the high-fire killing section and the medium / low temperature killing section is about 1:2, and the length of the killing device is not less than the length of the high-fire killing section. The heat supplied by direct heat conduction and the radiation of the hot air in the killing cylinder directly supply heat to the killing device, and the temperature of the curing device can reach a temperature equivalent to that of the wall temperature of the curing tube. The temperature of the cylinder wall, and slowly and orderly make the green leaves fall into the wall of the cylinder one by one, which solves the problem of the difficulty of sudden cooling and heating of the cylinder wall, and meets the temperature required for the leaves. It rotates with the wall of the cylinder and fully contacts with the green tea leaves, breaks up the tea balls and continuously supplies heat, so that the temperature of the green tea leaves is evenly heated, and enough heat is generated at the first time, so that the green tea leaves are completely finished during the whole green killing process. The constant heat required by the leaf and greening process can be fully maintained and exerted, which solves the technical problem of insufficient greening, thus ensuring the quality of high-quality greening leaves

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