Tea-leaf drying and screening device

Abstract

The invention relates to the field of tea-leaf processing, in particular to a tea-leaf drying and screening device. The tea-leaf drying and screening device comprises a shell, a drying cylinder, a hot air generator, a shifting rod, a motor and an accelerator. The hot air generator is fixedly connected with the lower end of the shell. A spiral guide groove is formed in the inner wall of the drying cylinder. A plurality of downward-inclining through holes capable of allowing tea stems to pass through are formed in the drying cylinder. A plurality of smooth protrusions are arranged on the peripheries of the through holes. A feed inlet and an exhaust hole are formed in the upper end of the drying cylinder. A discharge outlet is formed in the lower end of the drying cylinder. The shifting rod is movably installed between the shell and the drying cylinder. The side face of the shifting rod makes contact with the outer surface of the drying cylinder. The lower end of the shifting rod is connected with the motor. The accelerator is horizontally arranged at the feed inlet of the drying cylinder. According to the scheme, the tea stems can be separated from tea leaves, and the tea leaves can also be dried efficiently.

Description

technical field [0001] The invention belongs to the field of tea processing, in particular to a device for screening and drying tea leaves. Background technique [0002] The drying process of tea leaves is involved in the processing of tea leaves. The conventional tea processing process does not combine the frying process of tea leaves, mainly because the water content of tea leaves after rolling is still very high. The inside of the pot quickly forms agglomerates, and the tea juice is easy to stick to the pot wall, resulting in uneven frying of the tea leaves and difficulty in forming. Therefore, the tea leaves are first dried to reduce the water content to meet the requirements of pan frying. [0003] At present, drying devices such as hand-pulled louver dryers, automatic chain plate dryers, and fluidized bed dryers are mainly used to dry tea leaves. However, there have always been some problems in the drying process. When drying tea leaves, there are many tea stalks lef...

AI Technical Summary

Problems solved by technology

However, there have always been some problems in the drying process. When drying tea leaves, there are many tea stalks left in the tea leaves, and the tea stalks and tea leaves are mixed together, which will interfere with the drying of the tea leaves and cause poor drying effect of the tea leaves; The drying device only uses the heat produced by the device once, and it is difficult to recycle the heat, which leads to increased processing costs and energy waste

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