Automatic continuous black tea withering machine

Abstract

The invention discloses an automatic continuous black tea withering machine. The air outlet of a cooling drying tower is connected to a main air pipe at the bottom of a withering box through an air outlet pipe, and an air return pipe at the upper part of the withering box is connected to the air return port of the cooling drying tower; and a plurality of layers of conveyor belts are arranged in the withering box, the rotating directions of the adjacent conveyor belts are opposite, a heat storage drying device is arranged at the inner upper part of the cooling drying tower, a trough is arranged at the bottom of the cooling drying tower, the trough is communicated to a spray head at the inner upper part of the cooling drying tower through a pump and a water pipe, and an isolating ring cylinder is arranged between the spray head and the heat storage drying device. The high-humidity and high-temperature air generated in the black tea withering process returns to the cooling drying tower, cooled by spraying water and dried by the heat storage drying device, and the air enters the withering box and is recycled. The structures of the withering machine and the matched cooling drying towerthereof are improved; the high-temperature and high-humidity air treatment efficiency of the cooling drying tower is improved, so that the black tea withering process can be continuously and automatically performed in the withering box; and the withering machine has good black tea withering effect, and is favorable for keeping the quality of the black tea uniform and stable.

Description

Technical field [0001] The invention belongs to the technical field of black tea withering equipment, in particular to an automatic continuous black tea withering machine. Background technique [0002] Black tea needs to wither during the production process. The withering of black tea is carried out in a withering machine. In the withering machine, several layers of conveyor belts are usually set up. The black tea is transported layer by layer from top to bottom. The withering process is completed during the process of transporting the black tea. It was then sent out of the withering machine for the next process. A large amount of high-humidity and high-temperature gas will be produced during the withering process of black tea. These high-humidity and high-temperature gas must be cooled and dried in time, otherwise the quality of the black tea will be reduced, and the black tea may even rot. The existing withering machine and its supporting cooling and drying tower structure des...

AI Technical Summary

Problems solved by technology

During the withering process of black tea, a large amount of high-humidity and high-temperature gas will be produced. It is necessary to cool and dry these high-humidity and high-temperature gases in time, otherwise the quality of black tea will be reduced, and even black tea will rot.

The structure design of the existing withering machine and its supporting cooling and drying tower is not very reasonable, and the efficiency of processing high-humidity and high-temperature gas is low, which sometimes causes inconsistent or even decline in the quality of black tea

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