Novel fermentation tank for homogeneous tea fermentation

Abstract

The invention provides a novel fermentation tank for homogeneous tea fermentation, and relates to the technical field of tea fermentation. The tea containing groove is formed in the top of the air supply bottom groove; the stirring mechanism is arranged on the front face of the tea leaf containing groove and used for stirring tea leaves, the tea leaf containing groove comprises a side plate, the top of the side plate is provided with a left side cover plate and a right side cover plate, the top of the left side cover plate and the top of the right side cover plate are provided with a top cover plate, and the top cover plate is fixedly connected with the left side cover plate; a plurality of vent holes are formed in the bottom of the inner wall of the tea containing groove. According to the device, water supplementing and pile turning operation of tea leaves is carried out in a mode of spraying and stirring at the same time, the operation is repeated several times until fermentation is completed, an existing pile fermentation mode can be replaced, the efficient fermentation effect is achieved, pile turning and water supplementing in the fermentation process are fully automatic, labor is saved, meanwhile, human errors are reduced, and the production efficiency is improved. The consistency of the fermentation quality and the repeatability of the fermentation process are ensured.

Description

Technical Field

[0001] The invention relates to the technical field of tea fermentation, and in particular to a novel fermentation tank for homogeneous tea fermentation. Background Art

[0002] Dark tea is a fermented tea mediated by microorganisms. During the fermentation process, the enzymes produced by microorganisms catalyze a series of biochemical reactions in the tea contents, including redox reactions, hydrolysis reactions, and condensation reactions, and finally obtain fermented products that are completely different from the raw tea in color, flavor, and efficacy. Several important factors affecting dark tea fermentation are temperature, water content, oxygen, and fermentation time. The appropriate temperature is conducive to the activity of microbial enzymes, and the generally suitable temperature is 30∽40℃; the second is the water content of tea leaves, and the water content suitable for microbial growth should be above 20%; the fermentation speed is closely related to the oxygen supply, so it is very important to maintain good air exchange; and the fermentation time is related to the fermentation speed. If there is sufficient oxygen and the fermentation speed is fast, the fermentation time can be shortened, otherwise it will be extended. Like any biological fermentation project, the fermentation conditions have a great influence on the flavor of the fermented product, and the fermentation conditions are limited by the fermentation equipment. Therefore, the design of the fermentation equipment plays a vital role.

[0003] Fermentation vehicles are the latest means for homogeneous fermentation. However, even though fermentation vehicles can greatly improve space utilization, their compost turning and water replenishment operations still rely on manual labor, which greatly limits production efficiency.

[0004] Therefore, it is necessary to further transform the fermentation equipment to realize the full automation of tea water replenishment and pile turning during the fermentation process, which is of great significance to the tea fermentation industry. Summary of the invention

[0005] The object of the present invention is to provide a novel fermentation tank for homogeneous tea fermentation to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a novel fermentation tank for homogeneous tea fermentation, comprising:

[0007] Air supply bottom tank;

[0008] The tea holding tank is arranged on the top of the air supply bottom tank and is used for fermenting the tea leaves;

[0009] The stirring mechanism is arranged on the front side of the tea receiving groove and is used for stirring the tea leaves.

[0010] Through the above technical solution, the stirring mechanism is used to turn the tea leaves, which can improve the uniformity and speed of tea leaf fermentation.

[0011] Furthermore, the tea holding groove includes a side panel, a left cover plate and a right cover plate are arranged on the top of the side panel, a top cover plate is arranged on the top of the left cover plate and the right cover plate, the top cover plate is fixedly connected to the left cover plate, and a plurality of ventilation holes are opened at the bottom of the tea holding groove.

[0012] Through the above technical solution, the provision of the vent holes facilitates fresh air to enter the interior of the tea holding tank from the air supply bottom tank, thereby providing oxygen for the tea leaves.

[0013] Furthermore, the right side cover plate is movably connected to the top cover plate by an axle pin, an observation window is fixedly installed on the surface of the right side cover plate, a handle is fixedly installed at the bottom of the observation window for flipping the right side cover plate, and lighting lamps are fixedly installed on the inner surfaces of the left and right side plates.

[0014] Through the above technical solution, the fermentation of tea leaves can be observed conveniently through the observation window and the lighting lamp, and the right cover plate can be opened by the handle to facilitate sampling and shaping of the tea leaves.

[0015] Furthermore, the stirring mechanism includes a motor, which is fixedly installed on the front side of the tea receiving slot, and the output end of the motor is fixedly connected to a central stirring shaft, and the surface of the central stirring shaft is fixedly connected to a stirring paddle, and the stirring paddle is seamlessly fitted to the bottom of the tea receiving slot.

[0016] Through the above technical solution, the stirring paddle fits seamlessly with the bottom of the tea holding tank, ensuring the uniformity of the tea leaves when they are turned over.

[0017] Furthermore, the bottom of the back side of the air supply bottom tank is connected with an air supply pipe and a drain valve.

[0018] Through the above technical solution, it is convenient to provide fresh air to the air supply bottom tank, and at the same time, condensed water generated in the air supply bottom tank can be discharged.

[0019] Furthermore, the top of the back side of the tea holding groove is connected to a waste gas discharge pipe.

[0020] Through the above technical solution, exhaust gas can be discharged while introducing fresh air.

[0021] Furthermore, a water supply pipe is fixedly connected to the bottom of the top cover plate, and the surface of the water supply pipe is connected to an electric spray head. The number of the electric spray heads is several, and the distance between the electric spray heads is 20∽50 cm.

[0022] Through the above technical solution, the electric spray head connected to the water supply pipe is convenient for replenishing water to the tea leaves.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. The present invention comprises the following steps: placing tea leaves in a tea holding tank, the thickness of which does not exceed 1 meter, preferably about 0.5 meter; adding water according to the requirement of the final water content by spraying and stirring, and after completion, artificially smoothing the surface of the tea leaves (to ensure the uniformity of fermentation), and inserting a temperature sensor at a position of 20-30 cm in the tea leaves; using hot air or heating the steel plate of the tea holding tank to raise the temperature of the center of the tea pile in the tea holding tank to above 30° C. and then stopping heating; waiting for the temperature to rise naturally to 50° C. and stirring once every other day, and starting to pass air with saturated humidity of 50° C., with a ventilation volume of 1-5% of the volume of the tea leaves per minute, and the ventilation volume is different at different fermentation time points, and needs to be adjusted according to actual needs; regularly detecting the water content in the tea leaves during the fermentation period, and adding water when it is lower than the lower limit (such as lower than 20%), and also spraying and stirring, and repeating the stirring operation until the fermentation is completed.

[0025] 2. The present invention fully automates the compost turning and water replenishment during the fermentation process, thereby saving labor and reducing the occurrence of human errors, thereby ensuring the consistency of fermentation quality and the repeatability of the fermentation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the motor structure of the present invention;

[0027] Figure 2 It is a schematic cross-sectional structural diagram of the central stirring shaft of the present invention;

[0028] Figure 3 It is a schematic diagram of the positive cross-section structure of the present invention.

[0029] Description of reference numerals:

[0030] 1. Air supply bottom trough; 2. Tea holding trough; 21. Side panel; 22. Left cover plate; 23. Right cover plate; 24. Top cover plate; 25. Air vent; 26. Observation window; 27. Handle; 28. Light; 3. Stirring mechanism; 31. Motor; 32. Central stirring shaft; 33. Stirring paddle; 4. Air supply pipe; 5. Drain valve; 6. Water supply pipe; 7. Electric spray head; 8. Exhaust gas discharge pipe. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] like Figures 1 to 3As shown, a new type of fermentation tank for homogeneous tea fermentation includes: an air supply bottom tank 1; a tea holding tank 2, which is arranged on the top of the air supply bottom tank 1 and is used for fermenting tea leaves; and a stirring mechanism 3, which is arranged on the front side of the tea holding tank 2 and is used for stirring the tea leaves.

[0033] like Figure 1 to Figure 2 As shown, the tea holding groove 2 includes left and right side panels 21, and a left cover plate 22 and a right cover plate 23 are arranged on the top of the left and right side panels 21. A top cover plate 24 is arranged on the top of the left cover plate 22 and the right cover plate 23. The top cover plate 24 is fixedly connected to the left cover plate 22, and a plurality of ventilation holes 25 are opened at the bottom of the inner wall of the tea holding groove 2.

[0034] like Figure 1 to Figure 2 As shown, the right side cover plate 23 is movably connected to the top cover plate 24 through an axle pin, an observation window 26 is fixedly installed on the surface of the right side cover plate 23, a handle 27 is fixedly installed at the bottom of the observation window 26 to flip the right top cover plate 23, and lighting lamps 28 are fixedly installed on the inner surfaces of the left and right side plates 21.

[0035] like Figure 3 As shown, the stirring mechanism 3 includes a motor 31, which is fixedly installed on the front side of the tea receiving slot 2. The output end of the motor 31 is fixedly connected to a central stirring shaft 32, and the surface of the central stirring shaft 32 is fixedly connected to a stirring paddle 33, which is seamlessly fitted to the bottom of the tea receiving slot 2.

[0036] like Figure 3 As shown, the bottom of the back side of the air supply bottom tank 1 is connected with an air supply pipe 4 and a drain valve 5.

[0037] like Figure 3 As shown, the top of the back side of the tea holding tank 2 is connected to an exhaust gas discharge pipe 8.

[0038] like Figure 3 As shown, a water supply pipe 6 is fixedly connected to the bottom of the top cover plate 24, and the surface of the water supply pipe 6 is connected to an electric spray head 7. There are several electric spray heads 7, and the distance between the electric spray heads 7 is 20-50 cm.

[0039] In the embodiment of the present invention (working principle), when in use, the user puts the tea leaves into the tea holding tank 2, with a thickness not exceeding 1 meter, preferably about 0.5 meters; water is added according to the requirements of the final moisture content by spraying and stirring, and after completion, the surface of the tea leaves is artificially leveled (to ensure fermentation uniformity), and a temperature sensor is inserted at 20∽30cm in the tea leaves; the temperature of the center of the tea pile in the tea holding tank 2 is raised to above 30°C by hot air or by heating the steel plate of the tea holding tank 2, and then the heating is stopped; after waiting for the natural temperature to rise to 50°C, stir once every other day, and start to pass air with saturated humidity of 50°C, with a ventilation volume of 1∽5% of the volume of the tea leaves per minute, and the ventilation volume is different at different fermentation time points, which needs to be adjusted according to actual needs; during the fermentation period, the moisture content in the tea leaves is regularly detected, and when it is lower than the lower limit (such as lower than 20%), water is added, and the stirring operation is also carried out by spraying and stirring, and the stirring operation is repeated until the fermentation is completed.

[0040] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A novel fermentation tank for homogeneous tea fermentation, characterized in that: include: Air supply bottom tank (1); A tea holding tank (2) is arranged on the top of the air supply bottom tank (1) and is used for fermenting tea leaves; The stirring mechanism (3) is arranged on the front side of the tea-leaf containing groove (2) and is used for stirring the tea-leaf.

2. A novel fermentation tank for homogeneous tea fermentation according to claim 1, characterized in that: The tea-leaf receiving groove (2) comprises left and right side plates (21), the tops of the left and right side plates (21) are provided with a left cover plate (22) and a right cover plate (23), the tops of the left cover plate (22) and the right cover plate (23) are provided with a top cover plate (24), the top cover plate (24) is fixedly connected to the left cover plate (22), and the bottom of the inner wall of the tea-leaf receiving groove (2) is provided with a plurality of ventilation holes (25).

3. A novel fermentation tank for homogeneous tea fermentation according to claim 2, characterized in that: The right side cover plate (23) is movably connected to the top cover plate (24) via an axle pin; an observation window (26) is fixedly mounted on the surface of the right side cover plate (23); a handle (27) is fixedly mounted at the bottom of the observation window (26); and lighting lamps (28) are fixedly mounted on the inner surfaces of the left and right side plates (21).

4. A novel fermentation tank for homogeneous tea fermentation according to claim 1, characterized in that: The stirring mechanism (3) comprises a motor (31), the motor (31) is fixedly mounted on the front side of the tea-leaf receiving groove (2), the output end of the motor (31) is fixedly connected to a central stirring shaft (32), the surface of the central stirring shaft (32) is fixedly connected to a stirring paddle (33), and the stirring paddle (33) is seamlessly fitted to the bottom of the tea-leaf receiving groove (2).

5. A novel fermentation tank for homogeneous tea fermentation according to claim 1, characterized in that: The bottom of the back side of the air supply bottom tank (1) is connected to an air supply pipe (4) and a discharge valve (5).

6. A novel fermentation tank for homogeneous tea fermentation according to claim 1, characterized in that: The top of the back side of the tea holding tank (2) is connected to a waste gas discharge pipe (8).

7. A novel fermentation tank for homogeneous tea fermentation according to claim 3, characterized in that: The bottom of the top cover plate (24) is fixedly connected with a water supply pipe (6), and the surface of the water supply pipe (6) is connected with an electric spray head (7). The number of the electric spray heads (7) is several, and the distance between the electric spray heads (7) is 20∽50 cm.

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