Constant temperature tea drying device

Abstract

The invention provides a constant temperature tea drying device, and belongs to the field of mechanical equipment for tea processing. The constant temperature tea drying device comprises a fuel storage bin, a first fan, a boiler, a drying box, a feeding device and a tea storage bin, wherein the fuel storage bin and the first fan are connected with the boiler; the boiler is connected with the drying box; the tea storage bin is sequentially connected with the feeding device and the drying box; a heat exchange pipe is arranged on the inner wall of the boiler; the heat exchange pipe is provided with a heat exchange pipe open end and a heat exchange pipe outlet end; a tea output is formed in the bottom of the drying box; a hot air inlet end is connected with the heat exchange pipe outlet end; a hot air outlet end is connected with a first hot air extension branch pipe through a second fan; the first hot air extension branch pipe is further connected with the heat exchange pipe open end; a tea cooling device is arranged below the tea output; and the tea cooling device is connected with the tea output through a cooling pipeline. According to the constant temperature tea drying device, tea drying and cooling after drying can be achieved, constant temperature drying is achieved during the drying process, full-sealing cooling is achieved during the cooling process, and the drying efficiency and quality of tea are improved.

Description

[0001] 【Technical field】 [0002] The invention relates to the field of tea processing machinery and equipment, in particular to a constant temperature tea drying device. [0003] 【Background technique】 [0004] In the tea production process, the tea leaves need to be thoroughly dried and dehydrated to ensure that the taste of the tea leaves will not be lost, and at the same time, the storage time of the tea leaves can be extended. The drying methods currently used in production mainly include drying, frying, drying, etc., and the mechanical equipment used includes dryers, frying machines and drying auxiliary equipment. Among the above methods, the drying operation has the longest application history, but it has been gradually eliminated due to the shortcomings of obvious environmental constraints and poor product flavor quality, while the drying and frying operations are the most widely used in existing production. The flavor quality has its own characteristics. Among them, t...

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Problems solved by technology

Among them, firewood and coal-fired equipment are relatively serious in environmental pollution, and it is easy to contaminate the tea with the smell of firewood and coal, seriously affecting the original taste of tea; the current drying effect of gas, oil and electric heating equipment is better, and the obtained tea leaves However, gas and oil-fired equipment have disadvantages such as high initial investment and poor temperature control stability, while electric heating drying equipment has low thermal efficiency and high operating costs.

[0006] Furthermore, the function of the existing tea drying equipment is relatively simple, it only has the function of drying tea, and does not involve the follow-up treatment of the dried tea. However, the dried tea often needs to be cooled to room temperature before the next step processing, and the cooling after the drying of tea leaves is mostly open cooling

Open cooling is a method of natural cooling, which tends to cause uneven cooling of tea leaves, and the phenomenon of moisture return during the cooling process due to contact with air, which in turn affects the quality of tea leaves

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