Roller drying machine

Abstract

The invention discloses a roller drying machine, and belongs to the technical field of tea processing devices. The roller drying machine comprises a main frame, wherein a side plate and a top plate are fixedly arranged on the main frame, a roller is arranged in the main frame, and driven by a transmission mechanism arranged on the main frame, a heat source exchange chamber is arranged below the roller, an axial flow fan is arranged on one side of the heat source exchange chamber, a hot air pipe is arranged in the roller, the roller is sheathed with an electromagnetic heating jacket, a perforated closed plate is fixedly arranged at the feed end of the roller, a wet exhaust hood is sheathed at the discharging end of the roller, a wet exhaust fan is arranged at the upper end of the wet exhaust hood, a hot air inlet is formed in the lower end of the wet exhaust hood, the hot air pipe is connected with a hot air pipe interface arranged in the wet exhaust hood, the hot air pipe interface is communicated with the hot air inlet, and the hot air inlet faces to the axial flow fan. The roller drying machine disclosed by the invention simultaneously has the functions of green removing, roll drying and stir-frying, a product obtained by using the roller drying has jade green color and high fragrance which are better than that of the traditional stir-frying product and higher than that of a hot air dried product respectively.

Description

technical field [0001] The invention belongs to the technical field of tea processing devices, and in particular relates to a tumble dryer. Background technique [0002] The drying process is a key stage to promote the formation of tea taste, aroma and other endogenous substances. Tea drying has the characteristics of staged and staged drying, which can generally be divided into three stages. The first stage is mainly to evaporate water and stop residual enzyme activity; the second stage is the moisture content of the product in process is about 20%, and the plasticity of the product is better at this time, which is the best time for solidification; the third stage is to form tea aroma The main period of quality is the key stage of doing fire exercises. [0003] At present, the drying methods used in production mainly include drying, frying, drying, etc. Among them, the drying operation has the longest history, but it has been gradually eliminated due to the shortcomings o...

AI Technical Summary

Problems solved by technology

Studies have shown that during the frying and drying process, the friction between the finished product and the iron pot wall (tube wall) is severe, which helps to form a sharp aroma quality, but the color tends to be dark; the drying process has a relatively better color and is more green. but low aroma

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