Vacuum drying device and method for tea fermentation
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A vacuum drying device and tea fermentation technology, applied in tea drying, heating devices, drying solid materials, etc., can solve the problems of large temperature and humidity differences, hinder normal fermentation, high carbon dioxide concentration, etc., and achieve the effect of small fluctuations in temperature changes
Inactive Publication Date: 2020-09-22
MENGZHOU YUANHONG DRYING EQUIP RES & DEV CO LTD
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At present, solid fermentation also has problems such as large area of fermentation equipment, high labor intensity, difficulty in mass and heat transfer, and difficulty in controlling fermentation parameters.
[0003] The rolled leaves of black tea are usually placed in a fermentation box (fermentation bin) for fermentation. The tea leaves are basically fixed in the fermentation box (fermentation bin), and the tea leaves need to be turned manually during the fermentation process, which is time-consuming and labor-intensive and inefficient
The temperature control of tea leaves is troublesome, the temperature accuracy is not accurate, and the temperature and humidity inside and outside the fermentation pile are quite different, resulting in uneven fermentation inside and on the surface of the fermentation pile. The uniformity and stability of fermentation, the quality stability of processed black tea is poor, which affects the quality of black tea
[0004] Since the temperature control and moisturizing measures used in
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Embodiment 1
[0072] Such as figure 1 , figure 2 , image 3 The tea fermentation vacuum drying device shown includes a drum bin 1, an exhaust device 2, an oxygen device 3, a rear support 4, a front support 5, a driving device 6, a three-way valve 8, a dynamic sealing joint 9, an air guide pipe 10, Supporting wheel 11, oxygen delivery pipe 26, air extraction pipe 28.
[0073] The drum bin 1 includes a fermentation bin 16, a heating bin 23, a heat pipe 18, an electric heating device 19, a fixing bar 24, a sealing cover 15, a hollow transmission shaft 21, an exhaust pipe 13, a raceway 14, a spiral blade 17, Heat conduction working medium 20, gear 7, conductive ring 25.
[0074] The heating chamber 23 is wrapped on the outside of the fermentation chamber 16, and the joints between the chamber bodies at both ends of the heating chamber 23 and the chamber bodies at the two ends of the fermentation chamber 16 are fixed and sealed, and the fermentation chamber 16 and the heating chamber 23 are ...
Embodiment 2
[0115] Such as figure 1 , figure 2 The tea fermentation vacuum drying device shown includes a drum bin 1, an exhaust device 2, an oxygen device 3, a rear support 4, a front support 5, a driving device 6, a three-way valve 8, a dynamic sealing joint 9, an air guide pipe 10, Supporting wheel 11, oxygen delivery pipe 26, air extraction pipe 28.
[0116] The combined structure of the vacuum drying device for tea fermentation in Example 2 is the same as that of the vacuum drying device for tea fermentation described in Example 1, so the introduction will not be repeated here.
[0117] Such as figure 1 , figure 2 , Figure 4 The tea fermentation method shown includes feed, vacuum exhaust, negative pressure oxygen supply, dynamic fermentation, and discharge. The tea is fermented in 16 warehouses of the fermentation warehouse;
[0118] Step 1. Feeding: After the tea leaves to be processed are placed in the fermentation bin 16, the sealing cover 15 is installed.
[0119] Step ...
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Abstract
The invention provides a vacuum drying device for tea fermentation. The vacuum drying device comprises a drum bin, an exhaust device, an oxygen device, a rear support, a front support, a driving device, a three-way valve, a dynamic sealing joint, an air guide tube, a supporting wheel, an oxygen delivery tube, and an air extraction tube. The tea fermentation and drying process of the vacuum dryingdevice for tea fermentation is carried out in stages in a fermentation chamber, which can prevent dirt such as harmful bacteria and harmful particles in air from polluting products, and the fermentation chamber is likely to clean. A heat-conducting working medium is adopted as a heat carrier to enable errors between the target temperature of tea fermentation and the set temperature error to be within 2 DEG C, and high-pressure high-oxygen air with a relative pressure of 0.10 to 0.25 Mpa increases the penetration force into the leaf bud pores of the tea, and improves the fermentation effect oftea and increases the fermentation speed of tea; and the vacuum drying of tea fermentation solves the problems of poor color and easy loss of aroma in hot air drying, and greatly improves the yield and quality of tea.
Description
technical field [0001] The invention relates to a fermentation equipment, in particular to a vacuum drying device for tea fermentation. Background technique [0002] Fermentation technology has more and more applications in medicine, food industry, environmental science, chemical energy, agriculture, fermented feed, etc., and the technical application of fermentation equipment has become more and more extensive. Fermentation equipment refers to the equipment that uses microorganisms to produce target products. It must have various conditions suitable for the growth of microorganisms and the formation of products, thereby promoting the metabolism of microorganisms and enabling them to obtain greater yields. At present, solid fermentation also has problems such as large area occupied by fermentation equipment, high labor intensity, difficult mass and heat transfer, and difficult control of fermentation parameters. [0003] The rolled leaves of black tea are usually placed in ...
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