Black tea fermentation tank

Abstract

The invention discloses a black tea fermentation tank, and belongs to the technical field of black tea processing. A thermal insulation layer is arranged at the bottom of a tank body, a water pipe layer is arranged above the thermal insulation layer in a laying manner, a gravel layer is arranged above the water pipe layer in the laying manner, a temperature sensing device is arranged inside the gravel layer, a cement layer is arranged above the gravel layer, a water replenishing device is arranged above a heater, the heater is connected with a warmer through a pipeline, and the warmer is connected with a water inlet pipeline of the water pipe layer. The design is reasonable, the operation is easy and convenient and the installation is convenient. The temperature sensing device is arranged inside the gravel layer and controls the heating of hot water in the heater through a PLC controller, and the temperature of the hot water is transmitted through the water pipe layer to keep the fermentation temperature within an effective range, so that the fermentation quality and fermentation efficiency of black tea can be effectively improved, while outdoor open-air fermentation is adopted in the fermentation tank, so that the construction investment is small, and the large-scale black tea fermentation processing is suitable.

Description

technical field [0001] The invention relates to a black tea fermentation tank, which belongs to the technical field of black tea processing. Background technique [0002] In the black tea processing technology, the most important link is the fermentation process, and the key to the quality of black tea determines the fermentation process. This is different from the processing of green tea. The raw materials for processing black tea vary greatly due to the different climates, geographical conditions, varieties, and seasons of tea picking in the place of origin. The fermentation temperature and the water content of the tea itself are adjusted and controlled through the fermentation process of black tea. [0003] Most of the existing black tea fermentation processing is operated in a special fermentation room or a black tea fermentation box. There are heating devices and control instruments in the fermentation room, but the installation and debugging are relatively complicated...

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Problems solved by technology

[0003] Most of the existing black tea fermentation processing is operated in a special fermentation room or a black tea fermentation box. There are heating devices and control instruments in the fermentation room, but the installation and debugging are relatively complicated, and the investment in plant construction is relatively large. Due to the limitation of production space, it is difficult to meet the needs of large-scale fermentation production of black tea.

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