A fermentation device for tea processing
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- CHANGZHOU UNIV
- Filing Date
- 2026-05-11
- Publication Date
- 2026-06-12
Smart Images
Figure CN122181602A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of tea processing fermentation technology, specifically to a fermentation device for tea processing. Background Technology
[0002] Tea is a traditional specialty agricultural product of my country and one of the world's three major beverages. Its quality is closely related to its processing technology, and fermentation, as a crucial core process in tea processing, directly determines the color, aroma, taste, and nutritional components of tea. It is a key step in forming the unique qualities of fermented teas such as black tea, dark tea, and Pu'er tea. With the large-scale development of the tea industry and the trend of consumption upgrading, the market's requirements for the stability and uniformity of tea quality are constantly increasing. The fermentation equipment used in tea processing is mainly divided into two categories: static fermentation equipment and dynamic fermentation equipment. In traditional processing models and small tea enterprises, static fermentation equipment is more widely used. It often adopts fermentation chambers, fermentation cabinets, or simple fermentation rack structures, and achieves tea fermentation by manually controlling the temperature and humidity of the environment. Dynamic fermentation equipment (such as drum-type and chain-type fermenters) is mainly used in medium and large-scale tea production. It achieves full contact between tea and air through mechanical turning, which alleviates the problems of oxygen deficiency and uneven heating in static equipment to a certain extent.
[0003] The static fermentation equipment currently in use keeps the tea leaves stationary, resulting in a temperature difference between the tea leaves piled inside and outside. When humidifying, the mist and hot air cannot mix well, causing the tea leaves to not be evenly exposed to the humid air, which affects the fermentation effect. At the same time, during the humidification process, excess humid air is discharged into the external space, making the internal environment of the workshop relatively humid. Summary of the Invention
[0004] To solve the above technical problems, the present invention is implemented through the following technical solution: a fermentation device for tea processing, comprising: The fermentation box has a rectangular shell structure and movable support legs set at the bottom of the rectangular shell. A ventilation device is fixedly connected to the bottom of the rectangular shell. The top of the ventilation device penetrates through the bottom of the rectangular shell and extends into the interior of the rectangular shell, which can send fresh air into the fermentation box, so that the tea can come into contact with sufficient fresh air during the fermentation process. An air outlet is located at the top of the rectangular shell of the fermentation box and is connected to the inside of the rectangular shell. A water circulation device is connected to the top of the air outlet, which can absorb the moisture in the humid air inside the air box that is discharged through the air outlet, and then return the absorbed moisture to the water tank through the circulation system. A support plate is set inside the rectangular shell of the fermentation box and is fixedly connected to the inner wall of the rectangular shell. The top of the support plate is provided with a movable groove to facilitate the placement and removal of the tray device. When placing tea leaves or removing tea leaves, the tray device can be pulled out directly, which is convenient to use. The tray device is slidably connected to the inner wall of the movable groove. A water tank is installed on one side of the rectangular shell of the fermentation tank. The water tank is fixedly connected to the rectangular shell. The top of the water tank is connected to a water circulation device, and one side of the water tank is connected to a ventilation device. The ventilation device includes a duct, with a fan outlet connected to the bottom of the duct. A mounting bracket is fixedly connected to the inner wall of the duct, and a nozzle is fixedly connected to the bottom of the mounting bracket. An atomizing tube is connected to the top of the nozzle, and a microwave atomizer is connected to the end of the atomizing tube away from the nozzle. An air inlet of a diversion pipe is connected to the top of the duct, and a horizontal pipe is connected to the outlet of the diversion pipe. A vertical pipe is connected to the top of the horizontal pipe, and the side of the vertical pipe is connected to a tray device. Through the cooperation of the diversion pipe, the horizontal pipe, and the vertical pipe, humid air can be evenly discharged into the tray device at different locations.
[0005] Preferably, the air duct penetrates the bottom of the rectangular shell of the fermentation chamber and is fixedly connected to the rectangular shell. The nozzle is disc-shaped and has multiple sets of nozzles evenly distributed around it, allowing the water mist to fully contact the air supplied by the fan. The water inlet of the microwave atomizer is connected to the water tank through the water inlet pipe. The end of the atomizing tube near the nozzle passes through the fixing frame. The fan is fixedly connected to the rectangular shell of the fermentation chamber through the bracket. The microwave atomizer is located inside the rectangular shell of the fermentation chamber and is fixedly connected to the inner wall of the rectangular shell.
[0006] Preferably, the water circulation device includes a circulation tank, an exhaust port at the top of the circulation tank, a moisture-absorbing cotton fixedly connected to the inner wall of the exhaust port, sliding holes on both sides of the circulation tank, a movable bracket slidably connected to the inner wall of the sliding hole, a squeezing roller rotatably connected to the inner wall of the movable bracket, a telescopic push rod fixedly connected to one side of the movable bracket, and a sealing film fixedly connected to the inner wall of the sliding hole. The sealing film is pleated to provide space for the movement of the movable bracket and to seal the sliding hole to prevent air from escaping from the circulation tank. The movable bracket passes through the sealing film and is fixedly connected to the sealing film.
[0007] Preferably, a water inlet groove is provided at the bottom of the inner wall of the circulation box, and one side of the water inlet groove is connected to the water tank through a return water pipe. The water inlet groove can guide the water squeezed out by the squeezing roller and send it into the water tank through the return water pipe to complete the water circulation. The bottom of the circulation box is connected to the air outlet, and the telescopic push rod is fixedly connected to the side of the circulation box through a bracket.
[0008] Preferably, the tray device includes a bottom shell, a tray fixedly connected to the top of the bottom shell, sliding holes on the tray, multiple sets of sliding holes evenly distributed on the tray, a bellows slidably connected to the inner wall of the sliding holes, exhaust holes on both sides of the bellows, the exhaust holes on the sides allow the exhaust air to stably pass over the surface of the tea leaves, carrying away the waste gas produced during fermentation and replenishing fresh air, a lifting push rod fixedly connected to the bottom of the bellows, the bottom of the lifting push rod fixedly connected to the bottom of the inner wall of the bottom shell, an exhaust pipe connected to one side of the bellows, and ventilation holes on the bottom of the bottom shell.
[0009] Preferably, the bottom shell is located inside the rectangular shell of the fermentation chamber and is fixedly connected to the inner wall of the rectangular shell. Multiple sets of support plates and tray devices are provided and correspond one-to-one. Multiple sets of exhaust holes are provided and are evenly distributed in the wind direction. The end of the exhaust pipe away from the wind box is connected to the vertical pipe. The exhaust pipe is set as a retractable hose to provide support for the removal of the tray device. When the tray device is removed, the exhaust pipe is in a stretched state, so that the tray device can be removed smoothly.
[0010] It has the following beneficial effects: 1. The fermentation equipment for tea processing has a disc-shaped nozzle with nozzles on all four sides. Together with the air duct, the air and water mist supplied by the fan can be pre-mixed evenly inside the air duct. Then, the mixed moisture is sent into the tray device through the diversion pipe, horizontal pipe and vertical pipe, which makes it easy for the air and water mist to mix fully and avoids uneven humidity inside the tea leaves, which would affect the fermentation effect.
[0011] 2. This fermentation equipment for tea processing allows for the absorption of condensed water droplets by humid air passing through the exhaust port. Simultaneously, the pressure rollers squeeze the pressure rollers from both inside and outside, squeezing out the absorbed water. The squeezed water flows radially along the pressure rollers into the water inlet trough and is eventually guided back into the water tank. This process effectively recycles the water from the humid air discharged from the fermentation chamber, preventing the water from being released to the outside and causing a damp environment in the workshop. Furthermore, the water inlet trough design allows the recycled water to be returned to the water tank for reuse, saving water and eliminating the need for frequent refilling of the water tank, making it convenient to use.
[0012] 3. The fermentation equipment used for tea processing has a bellows that can move up and down. The movement of the bellows can move the tea leaves, allowing them to fully contact the air. This prevents a large temperature difference between the inside and outside of the tea leaves even when they are piled up thickly during fermentation. It also eliminates the need for regular manual turning, saving manpower. Because the bellows move up and down slowly, the movement of the tea leaves is also gentle, preventing damage to the tea leaves and reducing the amount of broken tea.
[0013] 4. In this fermentation equipment for tea processing, since both the bellows and the tea leaves are in motion, the air discharged from both sides of the bellows will not always blow onto the same tea leaves. At the same time, it can also ensure that every tea leaf can come into contact with fresh air, thus preventing moisture from condensing on the surface of the tea leaves and ensuring that all parts of the tea leaves can fully contact fresh air, thereby ensuring a uniform fermentation effect. Attached Figure Description
[0014] Figure 1 This is a front structural diagram of the fermentation equipment for tea processing according to the present invention. Figure 2 This is a schematic diagram of the back structure of the fermentation equipment for tea processing according to the present invention; Figure 3 This is a schematic diagram of the internal structure of the fermentation tank of the present invention; Figure 4 This is a schematic diagram of the ventilation device structure of the present invention; Figure 5 This is a schematic diagram of the internal structure of the air duct of the present invention; Figure 6 This is a schematic diagram of the water circulation device of the present invention; Figure 7 This is a schematic diagram of the internal structure of the circulation chamber of this invention; Figure 8 This is a schematic diagram of the tray device structure of the present invention; Figure 9 This is a schematic diagram of the internal structure of the tray device of the present invention.
[0015] In the diagram: 1. Fermentation box; 2. Ventilation device; 21. Air duct; 22. Fan; 23. Fixing frame; 24. Nozzle; 25. Atomizing tube; 26. Diverter tube; 27. Horizontal tube; 28. Vertical tube; 29. Microwave atomizer; 3. Air outlet; 4. Water circulation device; 41. Circulation box; 42. Exhaust port; 43. Moisture-absorbing cotton; 44. Sliding hole; 45. Moving bracket; 46. Squeezing roller; 47. Telescopic push rod; 48. Sealing film; 49. Water inlet trough; 5. Support plate; 6. Moving slide; 7. Tray device; 71. Bottom shell; 72. Tray; 73. Sliding hole; 74. Air box; 75. Exhaust port; 76. Lifting push rod; 77. Exhaust pipe; 78. Ventilation hole; 8. Water tank. Detailed Implementation
[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0017] For the first embodiment, please refer to... Figures 1-5 This invention provides a technical solution: by setting up a ventilation device 2, and the ventilation device 2 is equipped with a wind tunnel 21, the microwave atomizer 29 atomizes the water in the water tank 8 and sends it into the nozzle 24, and then sprays it into the wind tunnel 21 through the nozzle 24. Then, the fan 22 sends air into the wind tunnel 21. The air entering the wind tunnel 21 combines with the water mist sprayed from the nozzle 24 and enters the diversion pipe 26. Then, it enters the horizontal pipe 27 through the diversion pipe 26, and finally enters the tray device 7 through the vertical pipe 28. Since the nozzle 24 is set as a disc and has nozzles on all four sides, the air sent in by the fan 22 can be pre-mixed evenly with the water mist inside the wind tunnel 21 in conjunction with the wind tunnel 21. Then, the mixed moisture is sent into the tray device 7 through the diversion pipe 26, the horizontal pipe 27 and the vertical pipe 28, which facilitates the full mixing of air and water mist and avoids uneven humidity inside the tea leaves, which may affect the fermentation effect.
[0018] Second embodiment, please refer to Figures 1-7 Based on the first embodiment, the present invention provides a technical solution: Since a water circulation device 4 is also provided, the humid air inside the fermentation tank 1 is discharged from the top air outlet 3 into the circulation box 41 inside the water circulation device 4, and then discharged to the outside of the circulation box 41 through the exhaust port 42 at the top of the circulation box 41. When the humid air passes through the exhaust port 42, it needs to pass through the moisture-absorbing cotton 43 inside the exhaust port 42. Since the air entering the circulation box 41 gradually cools down, the small water droplets condensed in the air can be absorbed by the moisture-absorbing cotton 43. At the same time, the telescopic push rod 47 drives the moving bracket 45 to move back and forth. The movable support 45 drives the squeezing roller 46 to squeeze the moisture-absorbing cotton 43 from both the inside and outside. The squeezed water flows along the radial direction of the squeezing roller 46 and finally falls into the water inlet trough 49. Guided by the water inlet trough 49, it flows back into the water tank 8, thereby recovering the water in the humid air discharged from the fermentation tank 1 and preventing the water in the humid air from being discharged to the outside and causing the workshop environment to be humid. At the same time, the design of the water inlet trough 49 also allows the recovered water to flow back into the water tank for recycling, which is convenient for saving water and does not require frequent filling of the water tank 8, making it more convenient to use.
[0019] Third embodiment, please refer to Figures 1-9 Based on the first and second embodiments, the present invention provides a technical solution: tea leaves are laid flat on a tray 72 and a bellows 74. During fermentation, the bellows 74 are moved up and down by a lifting push rod 76. Since multiple sets of sliding holes 73 and bellows 74 are provided and correspond one-to-one, and the movement directions of adjacent bellows 74 are opposite, the tea leaves on them can be moved up and down by the reciprocating movement of the bellows 74. While the tea leaves are moving up and down, since the width of the bellows 74 is small, the tea leaves on the top of the bellows 74 will slide to the top of the adjacent bellows 74 as the bellows 74 moves upward, and the tea leaves will slide back down as the adjacent bellows 74 moves upward. Therefore, the movement of the bellows 74 can drive the movement of the tea leaves, so that the tea leaves can fully contact the air. This prevents a large temperature difference between the inside and outside of the tea leaves even if they are piled up thickly during fermentation. It also eliminates the need for regular manual turning, saving manpower. Since the up and down movement of the bellows 74 is relatively slow, the movement of the tea leaves is also relatively gentle, which will not damage the tea leaves and will result in fewer broken tea leaves. The bellows 74 is also provided with exhaust holes 75 on the side. The air inside the vertical pipe 28 enters the bellows 74 through the exhaust pipe 77, and the air inside the bellows 74 is discharged through the exhaust holes 75 on both sides. Since both the bellows 74 and the tea leaves are in motion, the discharged air will not always blow towards the same tea leaves. At the same time, it can also ensure that every tea leaf can come into contact with fresh air, which can prevent moisture from condensing on the surface of the tea leaves and ensure that all parts of the tea leaves can fully come into contact with fresh air, thus ensuring a uniform fermentation effect.
[0020] Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in the present invention, unless otherwise specified or limited, shall be implemented according to conventional means in the art.
Claims
1. A fermentation device for tea processing, characterized in that, include: Fermentation box (1), which has a rectangular shell structure and movable support legs provided at the bottom of the rectangular shell, and a ventilation device (2) is fixedly connected to the bottom of the rectangular shell, the top of the ventilation device (2) penetrates through the bottom of the rectangular shell and extends into the interior of the rectangular shell; Air outlet (3) is located on the top of the rectangular shell of the fermentation box (1) and is connected to the inside of the rectangular shell. A water circulation device (4) is connected to the top of the air outlet (3). A support plate (5) is set inside the rectangular shell of the fermentation box (1) and is fixedly connected to the inner wall of the rectangular shell. A movable groove (6) is opened on the top of the support plate (5), and a tray device (7) is slidably connected to the inner wall of the movable groove (6). Water tank (8) is located on one side of the rectangular shell of fermentation tank (1). The water tank (8) is fixedly connected to the rectangular shell (1). The top of the water tank (8) is connected to the water circulation device (4). One side of the water tank (8) is connected to the ventilation device (2). The ventilation device (2) includes a duct (21), the bottom of which is connected to the air outlet of a fan (22), a fixed frame (23) is fixedly connected to the inner wall of the duct (21), a nozzle (24) is fixedly connected to the bottom of the fixed frame (23), an atomizing tube (25) is connected to the top of the nozzle (24), a microwave atomizer (29) is connected to the end of the atomizing tube (25) away from the nozzle (24), an air inlet of a diversion pipe (26) is connected to the top of the duct (21), a horizontal pipe (27) is connected to the air outlet of the diversion pipe (26), a vertical pipe (28) is connected to the top of the horizontal pipe (27), and the side of the vertical pipe (28) is connected to the tray device (7).
2. The fermentation equipment for tea processing according to claim 1, characterized in that: The air duct (21) penetrates the bottom of the rectangular shell of the fermentation box (1) and is fixedly connected to the rectangular shell. The nozzle (24) is set in a disc shape and has multiple sets of nozzles evenly opened around it. The water inlet of the microwave atomizer (29) is connected to the water tank (8) through the water inlet pipe.
3. The fermentation equipment for tea processing according to claim 1, characterized in that: The atomizing tube (25) passes through the fixing frame (23) at one end near the nozzle (24). The fan (22) is fixedly connected to the rectangular shell of the fermentation box (1) through the bracket. The microwave atomizer (29) is set inside the rectangular shell of the fermentation box (1) and fixedly connected to the inner wall of the rectangular shell.
4. The fermentation equipment for tea processing according to claim 1, characterized in that: The water circulation device (4) includes a circulation box (41), an exhaust port (42) is provided on the top of the circulation box (41), a moisture-absorbing cotton (43) is fixedly connected to the inner wall of the exhaust port (42), sliding holes (44) are provided on both sides of the circulation box (41), a movable bracket (45) is slidably connected to the inner wall of the sliding hole (44), a squeezing roller (46) is rotatably connected to the inner wall of the movable bracket (45), a telescopic push rod (47) is fixedly connected to one side of the movable bracket (45), a sealing film (48) is fixedly connected to the inner wall of the sliding hole (44), the sealing film (48) is set in a pleated shape to provide space for the movement of the movable bracket (45), the movable bracket (45) passes through the sealing film (48) and is fixedly connected to the sealing film (48).
5. A fermentation device for tea processing according to claim 4, characterized in that: The bottom of the inner wall of the circulation tank (41) is provided with a water inlet trough (49), and one side of the water inlet trough (49) is connected to the water tank (8) through a return water pipe.
6. The fermentation equipment for tea processing according to claim 4, characterized in that: The bottom of the circulation box (41) is connected to the air outlet (3), and the telescopic push rod (47) is fixedly connected to the side of the circulation box (41) through the bracket.
7. The fermentation equipment for tea processing according to claim 1, characterized in that: The tray device (7) includes a bottom shell (71), a tray (72) is fixedly connected to the top of the bottom shell (71), a sliding hole (73) is provided on the tray (72), multiple sets of sliding holes (73) are provided and evenly distributed on the tray (72), a bellows (74) is slidably connected to the inner wall of the sliding hole (73), an exhaust hole (75) is provided on both sides of the bellows (74), a lifting push rod (76) is fixedly connected to the bottom of the bellows (74), the bottom of the lifting push rod (76) is fixedly connected to the bottom of the inner wall of the bottom shell (71), an exhaust pipe (77) is connected to one side of the bellows (74), and a ventilation hole (78) is provided at the bottom of the bottom shell (71).
8. A fermentation device for tea processing according to claim 7, characterized in that: The bottom shell (71) is set inside the rectangular shell of the fermentation box (1) and is fixedly connected to the inner wall of the rectangular shell. The support plate (5) and the tray device (7) are provided in multiple sets and correspond one to one.
9. A fermentation device for tea processing according to claim 7, characterized in that: The exhaust port (75) is provided in multiple sets and is evenly distributed in the wind direction (74). The end of the exhaust pipe (77) away from the wind box (74) is connected to the vertical pipe (28). The exhaust pipe (77) is configured as a retractable hose.