Tea drying device

Abstract

Relating to the technical field of tea production, the invention specifically discloses a tea drying device. The device comprises a discharge pipe, a drying barrel, a driving motor and a hot air mechanism. The discharge pipe consists of an entrance section, a throat and a diffusion section. A drying cavity is disposed between the drying barrel and the discharge pipe, and suction holes are disposedon the side wall of the throat. The hot air mechanism includes an air heater, a two-position three-way reversing valve installed at the top of the discharge pipe and cams disposed on the inner wall of the drying barrel, the two-position three-way reversing valve is equipped with an air inlet communicated with the air heater, a first exhaust port communicated with the entrance section of the discharge pipe and a second exhaust port communicated with the drying barrel, the two-position three-way reversing valve is internally provided with a valve core abutting against the cams, and during the reciprocating motion of the valve core relative to the cams, the first exhaust port and the second exhaust port are in reciprocating communication with the air inlet. The drying barrel is connected toa power supply negative pole, and the throat is connected to a power supply positive pole. The device provided by the invention can screen tea according to the tea drying degree so as to obtain the superior grain tea.

Description

technical field [0001] The invention relates to the technical field of tea production, in particular to a tea drying device. Background technique [0002] Moisture is the necessary medium (media) for the biochemical reactions of various components in tea. As the moisture content of tea leaves increases, the change speed of tea leaves is accelerated, the color of tea leaves gradually turns yellow, and the taste and freshness of tea leaves weaken. Therefore, for better storage of tea leaves without aging and deterioration, tea leaves must be dried. Drying is an important process of tea production. Its main purpose is to remove all the moisture inside and outside the tea leaves, and at the same time achieve the purpose of tea shaping and oxidation resistance. In actual production, the tea leaves are flattened and put into the dryer Tumble dry to set. Existing tea drying machines use heating devices to directly heat the air, and then use the heated air to dry the tea leaves. T...

AI Technical Summary

Problems solved by technology

Existing tea drying machines use heating devices to directly heat the air, and then use the heated air to dry the tea leaves. The commonly used tea drying equipment mostly uses hot air drying furnaces, and the drying furnaces are equipped with drying ovens. room, such a drying room may result in insufficient and uneven drying due to obstructed air flow

[0003] It is a common phenomenon in tea processing that tea cannot be fully and evenly dried

In the drying process, in order to ensure that most of the tea leaves meet the required dryness requirements, there are often a small number of tea leaves that do not meet the drying requirements, and some tea leaves are over-dried, and these tea leaves are mixed with the tea leaves that meet the requirements. In addition, it will also cause the taste of tea to weaken

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