Fermentation barrel suitable for tea processing

Abstract

The invention relates to the technical field of tea leaf processing and fermentation, and discloses a fermenter suitable for tea leaf processing, which comprises a fermenter for tea leaf fermentation; the plurality of supporting legs are arranged at the bottom of the fermentation barrel and are used for supporting the fermentation barrel; the cover is arranged at the top of the fermentation barrel and is used for sealing the fermentation barrel; the stirring mechanism is arranged in the fermentation barrel and is used for stirring the tea leaves in the fermentation barrel; the rolling unit is arranged in the fermentation barrel and is positioned below the fermentation barrel. A plurality of stirring rods are driven to rotate by a rotating shaft in the arranged stirring mechanism, and stirring turning rods are pushed to deflect by virtue of arc-shaped telescopic rods, so that the range of stirring tea leaves is expanded, and the tea leaves can be fully turned over; the tea leaves are repeatedly rolled and rubbed in cooperation with the elastic strips and the vortex-shaped convex blocks, so that the fermentation effect of the tea leaves is further promoted, and the color, fragrance, taste and shape of the tea leaves are better developed.

Description

Technical Field

[0001] This invention relates to the field of tea processing fermentation technology, specifically a fermentation tank suitable for tea processing. Background Technology

[0002] Fermentation is a crucial step in tea processing, shaping its unique qualities. Traditional tea fermentation methods typically employ simple fermentation barrels or pools, relying on natural stacking or simple turning to complete the process. However, these traditional methods have numerous shortcomings, severely impacting the fermentation effect and final quality of the tea.

[0003] In traditional fermentation tanks or pools, the uneven distribution of internal temperature and humidity after tea leaves are piled up can easily lead to uneven fermentation, affecting the quality of the tea. The lack of effective stirring and turning after the tea leaves are piled up results in uneven heating during the fermentation process, leading to poor fermentation. Furthermore, when the tea leaves are piled up too thickly, the internal temperature rises, which can easily cause the pile to burn, deteriorating the tea and affecting its quality. Therefore, a fermentation tank suitable for tea processing is proposed to solve the above-mentioned problems. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a fermentation tank suitable for tea processing, which addresses the shortcomings of the prior art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a fermentation tank suitable for tea processing, comprising a fermentation tank for tea fermentation; and further comprising: Multiple support legs are provided at the bottom of the fermentation tank to support the fermentation tank; A lid, located on top of the fermentation tank, is used to seal the fermentation tank; A stirring mechanism is installed inside the fermentation tank to agitate the tea leaves inside the fermentation tank. The kneading unit is located inside the fermentation tank at the bottom and is used to knead the tea leaves after they have been broken up. The fermentation tank has an inner tank on its inner wall, and a bottom plate connects the inner tank and the bottom of the fermentation tank. The stirring mechanism includes: A support plate is fixedly connected to the top of the inner tub, and the support plate is conical. An installation ring is fixedly connected to the inner wall of the inner tub, and the inner wall of the installation ring is connected to a fixing plate by multiple connecting rods. A rotating shaft is rotatably connected to the top of the fixed plate, and the top of the rotating shaft moves upward through the bearing plate and extends upward. Multiple stirring rods, arranged in groups of three on the outer wall of the rotating shaft, are used to stir and agitate the tea leaves.

[0006] Preferably, each of the stirring rods has a stirring lever hinged at the end away from the rotating shaft, which is used to deflect and expand the range of tea leaves being stirred; An arc-shaped telescopic rod is connected at both ends between the stirring tipping rod and the stirring rod, respectively, and is used to push the stirring tipping rod to deflect.

[0007] Preferably, the kneading unit includes: The kneading disc has a circular hole in the middle and is connected to the outer wall of the rotating shaft by two round rods, and rotates with the rotating shaft; A movable sleeve is movably connected to the inner wall of the fermentation tank, and the inner wall of the movable sleeve is movably connected to the outer wall of the inner tank and the kneading disc, and a tapered groove is provided on the movable sleeve. Two movable slots are respectively formed on the inner walls of the fermentation tank and the movable sleeve; Multiple sliding rods are fixedly connected to the outer walls of the kneading disc and the movable sleeve, and are movably connected to two movable grooves. When the kneading disc rotates, it drives the sliding rods to push the movable sleeve up and down in the movable grooves, which is used to push the tea leaves upward and stir them repeatedly.

[0008] Preferably, the fermentation tank and the inner tank are provided with multiple air holes, and the movable sleeve is provided with multiple through holes for gas exchange between the inside and outside of the fermentation tank.

[0009] Preferably, the kneading unit further includes: The spiral protrusion is fixedly connected to the top of the support plate; Multiple elastic strips are set at the bottom of the kneading disc, working in conjunction with the vortex-shaped protrusions to knead the tea leaves; A cleaning mechanism is installed in the mounting groove at the bottom of the kneading disc and is used to clean the support plate.

[0010] Preferably, the cleaning mechanism includes: The fixing rod is fixedly connected within the mounting groove; A slider is slidably connected to the outer wall of the fixed rod, and a spring is sleeved on the outer wall of the fixed rod to push the slider to slide away from the rotating shaft on the fixed rod; A scraper, fixedly connected to the bottom of the slider and attached to the top of the support plate, is located between adjacent intervals of the vortex protrusions and is used to scrape off impurities attached to the support plate.

[0011] Preferably, the scraper has a rectangular hole, and a connecting plate is fixedly connected to the inner wall of the rectangular hole; Two brush plates are movably connected inside the rectangular hole, and two springs are provided on the inner wall of the rectangular hole to push the brush plates on both sides to move towards the vortex-shaped protrusion.

[0012] Preferably, the support plate has multiple feeding holes, and the feeding holes are equipped with a discharge mechanism for discharging the kneaded tea leaves; The discharge mechanism includes: The discharge ring has a groove on its top and moves within the discharge hole; Multiple support rods are fixedly connected to the bottom of the base plate and the bearing plate, and the support rods movably pass through the discharge ring; Multiple fixing sleeves are connected to the bottom of the discharge ring and are fitted onto the outer wall of the support rod; Multiple springs are sleeved on the outer wall of the support rod and connected between the bearing plate and the discharge ring, and are located in the groove to pull the discharge ring upward. The feeding ring is fixedly sleeved on the outer wall of the fixed sleeve; Multiple springs are sleeved on the outer wall of the support rod and connected between the base plate and the feeding ring, used to push the feeding ring and the discharge ring upward; A circular ring is fixedly connected to the bottom of the feeding circular ring and adheres to the inner wall of the base plate; Two L-shaped connecting rods, one end of which is connected to the bottom of the feeding ring, and the other end of the L-shaped connecting rod is fixedly inserted through the ring and connected to a push plate; The rotating rod is rotatably connected to the fermentation tank and moves through the straight slot hole opened on the ring. Two elliptical blocks are fixedly fitted onto the outer wall of the rotating rod and abut against the top of the push plate to push the push plate downward. The elliptical block is provided with multiple spherical blocks, and the push plate is provided with limit holes, and the spherical blocks are inserted into the limit holes to limit the rotation of the push plate; Multiple dispersing rods are fixedly sleeved on the outer wall of the rotating shaft and located below the discharge ring, used to disperse the tea leaves that have been kneaded into clumps after discharge.

[0013] The present invention, by adopting the above technical solution, can bring the following beneficial effects: 1. This fermentation tank, suitable for tea processing, uses a rotating shaft in its stirring mechanism to drive multiple stirring rods to rotate. An arc-shaped telescopic rod further deflects the stirring levers, expanding the range of tea leaf movement and ensuring thorough agitation. Simultaneously, the kneading disc in the kneading unit rotates under the drive of the rotating shaft, working in conjunction with elastic strips and vortex-shaped protrusions to repeatedly knead and rub the tea leaves, further promoting fermentation and enhancing the color, aroma, flavor, and shape of the tea.

[0014] 2. This is suitable for fermentation tanks used in tea processing. When the kneading disc rotates, the sliding rod pushes the movable sleeve up and down within the movable groove, achieving cyclical stirring and dispersing of the tea leaves, and cyclical kneading. This cyclical process not only makes the tea leaves heat and ferment more evenly, but also avoids the burning phenomenon caused by the accumulation of tea leaves, effectively improving the fermentation quality of the tea.

[0015] 3. This fermentation tank, suitable for tea processing, features an automatic discharge mechanism. Rotating the rotating rod drives the elliptical block to rotate, pushing the push plate downwards, which in turn moves the feeding ring and discharge ring downwards, allowing the tea leaves to be discharged smoothly. Simultaneously, the rotating shaft drives the dispersing rod to rotate, breaking up any clumps of tea leaves that have fallen, improving discharge efficiency, reducing manual intervention, and saving time and labor. Furthermore, the cleaning mechanism automatically removes impurities from the support plate. The scraper, under the action of a spring, adheres to the top of the support plate and moves with the rotation of the kneading disc, scraping away impurities. At the same time, the brush, pushed by a spring, abuts against the vortex-shaped protrusions, cleaning impurities on both sides of the vortex-shaped protrusions, reducing manual cleaning workload and improving equipment operating efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the cross-sectional structure of the present invention; Figure 3 This is a schematic diagram of the exploded cross-sectional structure of the present invention; Figure 4 This is a schematic cross-sectional view of the material discharge mechanism of the present invention; Figure 5 This is a schematic diagram of the exploded structure of the kneading unit of the present invention; Figure 6 This is a schematic diagram of the cross-sectional structure of the kneading disc of the present invention; Figure 7 For the present invention Figure 6 Enlarged structural diagram at point A in the middle.

[0017] In the diagram: 1. Fermentation tank; 11. Inner tank; 12. Base plate; 2. Support leg; 3. Lid; 4. Stirring mechanism; 41. Support plate; 42. Rotating shaft; 43. Stirring rod; 44. Stirring tilting rod; 45. Arc-shaped telescopic rod; 46. Mounting ring; 5. Kneading unit; 51. Kneading disc; 52. Movable sleeve; 53. Slide rod; 54. Movable groove; 55. Vortex protrusion; 56. Elastic strip; 57. Cleaning mechanism; 571. Fixing 572. Rod; 573. Slider; 574. Scraper; 575. Spring 1; 576. Brush; 5777. Connecting plate; 5777. Spring 2; 6. Discharge mechanism; 61. Discharge ring; 62. Fixing sleeve; 63. Spring 3; 64. Support rod; 65. Spring 4; 66. L-shaped connecting rod; 67. Push plate; 68. Rotating rod; 69. Elliptical block; 610. Dispersing rod; 611. Discharge ring; 612. Ring. Detailed Implementation

[0018] 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.

[0019] Please see Figure 1-7 One embodiment of the present invention is: a fermentation tank suitable for tea processing, comprising a fermentation tank 1 for tea fermentation; and further comprising: Multiple support legs 2 are set at the bottom of the fermentation tank 1 to support the fermentation tank 1; The lid 3 is placed on top of the fermentation tank 1 to seal the fermentation tank 1; The stirring mechanism 4 is located inside the fermentation tank 1 and is used to stir and agitate the tea leaves inside the fermentation tank 1. The kneading unit 5 is located inside the fermentation tank 1 at the bottom and is used to knead the tea leaves after they have been broken up. The fermentation tank 1 has an inner tank 11 on its inner wall, and a bottom plate 12 is connected to the bottom of the fermentation tank 1. The stirring mechanism 4 includes: The support plate 41 is fixedly connected to the top of the inner barrel 11, and the support plate 41 is conical; The mounting ring 46 is fixedly connected to the inner wall of the inner tub 11, and the inner wall of the mounting ring 46 is connected to a fixing plate by multiple connecting rods. The rotating shaft 42 is rotatably connected to the top of the fixed plate, and the top of the rotating shaft 42 moves upward through the bearing plate 41 and extends upward. Multiple stirring rods 43 are arranged in groups of three on the outer wall of the rotating shaft 42 to stir and agitate the tea leaves.

[0020] Each stirring rod 43 is hinged to a stirring tipping rod 44 at the end away from the rotating shaft 42, which is used to deflect and expand the range of tea leaves being stirred. The arc-shaped telescopic rod 45 is connected at both ends between the stirring tipping rod 44 and the stirring rod 43, respectively, and is used to push the stirring tipping rod 44 to deflect.

[0021] Kneading unit 5 includes: The kneading disc 51 has a circular hole in the middle and is connected to the outer wall of the rotating shaft 42 by two round rods, and rotates with the rotating shaft 42. The movable sleeve 52 is movably connected to the inner wall of the fermentation tank 1, and the inner wall of the movable sleeve 52 is movably connected to the outer wall of the inner tank 11 and the kneading disc 51, and the movable sleeve 52 is provided with a conical groove. Two movable troughs 54 are respectively opened on the inner walls of the fermentation tank 1 and the movable sleeve 52; Multiple sliding rods 53 are fixedly connected to the outer walls of the kneading disc 51 and the movable sleeve 52, and are movably connected to two movable grooves 54. When the kneading disc 51 rotates, it drives the sliding rods 53 to push the movable sleeve 52 up and down in the movable groove 54, which is used to push the tea leaves upward and stir repeatedly.

[0022] The fermentation tank 1 and the inner tank 11 are provided with multiple air holes, and the movable sleeve 52 is provided with multiple through holes for gas exchange between the inside and outside of the fermentation tank 1.

[0023] The kneading unit 5 also includes: The vortex-shaped protrusion 55 is fixedly connected to the top of the support plate 41; Multiple elastic strips 56 are set at the bottom of the kneading disc 51, which work with the vortex protrusions 55 to knead the tea leaves; The cleaning mechanism 57 is located in the mounting groove at the bottom of the kneading disc 51 and is used to clean the support plate 41.

[0024] Cleanup agencies 57 include: Fixed rod 571 is fixedly connected in the mounting groove; The slider 572 is slidably connected to the outer wall of the fixed rod 571, and the outer wall of the fixed rod 571 is fitted with a spring 574 for pushing the slider 572 to slide on the fixed rod 571 away from the rotating shaft 42. The scraper 573 is fixedly connected to the bottom of the slider 572 and adheres to the top of the support plate 41, and is located between adjacent intervals of the vortex protrusions 55, for scraping off impurities attached to the support plate 41.

[0025] A rectangular hole is provided on the scraper 573, and a connecting plate 5732 is fixedly connected to the inner wall of the rectangular hole; Two brush plates 5731 are movably connected inside a rectangular hole, and two springs 5733 are provided on the inner wall of the rectangular hole to push the brush plates 5731 on both sides to move towards the vortex protrusion 55.

[0026] The support plate 41 has multiple feeding holes, and the feeding holes are equipped with a discharge mechanism 6 for discharging the kneaded tea leaves. The discharge mechanism 6 includes: The discharge ring 61 has a groove on its top and moves within the discharge hole; Multiple support rods 64 are fixedly connected to the bottom of the base plate 12 and the bearing plate 41, and the support rods 64 can move through the discharge ring 61. Multiple fixing sleeves 62 are connected to the bottom of the discharge ring 61 and are fitted onto the outer wall of the support rod 64; Multiple springs 63 are sleeved on the outer wall of the support rod 64 and connected between the bearing plate 41 and the discharge ring 61, and are located in the groove to pull the discharge ring 61 upward. The feeding ring 611 is fixedly sleeved on the outer wall of the fixed sleeve 62; Multiple springs 65 are sleeved on the outer wall of the support rod 64 and connected between the base plate 12 and the feeding ring 611, used to push the feeding ring 611 and the discharge ring 61 upward. The circular ring 612 is fixedly connected to the bottom of the feeding circular ring 611 and is attached to the inner wall of the base plate 12; Two L-shaped connecting rods 66 are connected at one end to the bottom of the feeding ring 611, and the other end of the L-shaped connecting rod 66 is fixedly inserted through the ring 612 and connected to the push plate 67. Rotating rod 68 is rotatably connected to fermentation tank 1 and moves through the straight slot hole opened on ring 612; Two elliptical blocks 69 are fixedly sleeved on the outer wall of the rotating rod 68 and abut against the top of the push plate 67 to push the push plate 67 downward. Multiple spherical blocks are provided on the elliptical block 69, and a limit hole is provided on the push plate 67, and the spherical blocks are inserted into the limit hole to limit the rotation of the push plate 67. Multiple dispersing rods 610 are fixedly sleeved on the outer wall of the rotating shaft 42 and located below the discharge ring 61, used to disperse the tea leaves that have been kneaded into a ball after discharge.

[0027] Working principle: In the process of tea processing, tea fermentation is one of the most important biochemical reactions. It refers to the process in which, after the cells of fresh tea leaves are damaged, the substances contained in the tea leaves (such as tea polyphenols, amino acids, caffeine, chlorophyll, etc.) undergo a series of chemical reactions such as oxidation, polymerization, and decomposition under the action of enzymes (oxidases, hydrolases, etc.), thereby forming the unique color, aroma, taste, and shape of tea.

[0028] At this point, the kneaded tea leaves need to be placed in tea barrel 1 for fermentation. However, after being placed in tea barrel 1, the tea leaves will pile up, making it impossible to ventilate. This will cause the internal temperature to rise, resulting in the tea leaves burning and affecting the quality of the tea. At this point, the motor installed at the bottom of the fixed plate is started, and then the rotating shaft 42 connected to it is started to rotate, thereby driving multiple stirring rods 43 to rotate. At the same time, the arc-shaped telescopic rod 45 pushes the stirring flipping rod 44 to deflect, thereby straightening it and realizing the stirring of the tea leaves, promoting the stirring range. Furthermore, as the rotating shaft 42 continues to rotate, it will also drive the kneading disc 51 to rotate, which in turn will drive the elastic strip 56 to move relative to the vortex protrusion 55 on the support plate 41, thereby kneading and rubbing the tea leaves that fall into the support plate 41 from the circular hole on the kneading disc 51, thus achieving the re-kneading of the tea leaves. When the kneading disc 51 rotates, it will push the movable sleeve 52 to move up and down in the movable groove 54 through the slide rod 53. When the movable sleeve 52 is below the support plate 41, the kneaded tea leaves will fall into one side of the movable sleeve 52. When the movable sleeve 52 moves up, it can tilt and enter the upper part of the kneading disc 51, so as to continuously stir and disperse the tea leaves and knead them to promote the fermentation effect of the tea leaves. Furthermore, when the movable sleeve 52 moves upward, it will push the stirring scheme 44 to deflect, thereby squeezing the arc-shaped telescopic rod 45, thus generating deflection, expanding the longitudinal stirring range, and further improving the stirring effect; When material needs to be discharged, simply rotate the rotating rod 68. The rotating rod 68 will drive the elliptical block 69 to rotate, which will cause the spherical block on the outer wall of the elliptical block 69 to abut against the limiting hole on the push plate 67 to form a lock. As the elliptical blocks 69 move away from the center and abut against the push plate 67 in sequence, they will push the push plate 67 to move downward, which will in turn push the L-shaped connecting rod 66 to move downward, which will in turn push the feeding ring 611 and the ring 612 to move downward, thereby blocking the tea leaves. Furthermore, when the feeding ring 611 moves down, it will drive the fixed sleeve 62 to move down, and drive the discharge ring 61 to move down, so that the discharge ring 61 moves down and disengages from the feeding hole, so that the kneaded tea leaves slide along the conical surface of the support plate 41 to the feeding hole and fall above the discharge ring 61, thereby realizing the discharge. When the rotating shaft 42 rotates, it will also drive the dispersing rod 610 to rotate, which will further disperse the clumps of tea leaves that have fallen, thus improving work efficiency. When the kneading disc 51 rotates, the scraper 573 will adhere to the adjacent inner wall of the vortex protrusion 55. At this time, the spring 574 will drive the slider 572 to move towards the side of the rotating shaft 42, so that it can move and stay attached to the top of the support plate 41 to scrape off impurities when rotating. During the movement, the brush plate 5731 located on the inner wall of the rectangular hole of the scraper 573 will be pushed by the spring 5733 and abut against the vortex protrusion 55 to clean the impurities on both sides of the vortex protrusion 55, thereby further improving the cleaning effect.

[0029] This invention provides a fermentation tank suitable for tea processing. Many methods and approaches exist for implementing this technical solution; the above description is merely a preferred embodiment of the invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this invention, and these improvements and modifications should also be considered within the scope of protection of this invention. All components not explicitly stated in this embodiment can be implemented using existing technologies.

Claims

1. A fermentation tank suitable for tea processing, comprising a fermentation tank (1) for tea fermentation; characterized in that, Also includes: Multiple support legs (2) are provided at the bottom of the fermentation tank (1) to support the fermentation tank (1). A lid (3) is placed on top of the fermentation tank (1) to seal the fermentation tank (1). A stirring mechanism (4) is installed inside the fermentation tank (1) to stir and agitate the tea leaves inside the fermentation tank (1); The kneading unit (5) is located inside the fermentation tank (1) below the fermentation tank (1) and is used to knead the tea leaves after they have been broken up. The fermentation tank (1) has an inner tank (11) on its inner wall, and the bottom of the inner tank (11) and the fermentation tank (1) are connected by a bottom plate (12). The stirring mechanism (4) includes: A support plate (41) is fixedly connected to the top of the inner barrel (11), and the support plate (41) is conical; The mounting ring (46) is fixedly connected to the inner wall of the inner barrel (11), and the inner wall of the mounting ring (46) is connected to a fixing plate by multiple connecting rods. A rotating shaft (42) is rotatably connected to the top of the fixed plate, and the top of the rotating shaft (42) moves upward through the bearing plate (41) and extends upward. Multiple stirring rods (43) are arranged in groups of three on the outer wall of the rotating shaft (42) for stirring and turning the tea leaves.

2. A fermentation tank suitable for tea processing according to claim 1, characterized in that: Each of the stirring rods (43) has a stirring lever (44) hinged at one end away from the rotating shaft (42) for deflecting and expanding the range of tea leaves being stirred; An arc-shaped telescopic rod (45) is connected at both ends between the stirring tipping rod (44) and the stirring rod (43) respectively, and is used to push the stirring tipping rod (44) to deflect.

3. A fermentation tank suitable for tea processing according to claim 2, characterized in that: The kneading unit (5) includes: The kneading disc (51) has a circular hole in the middle and is connected to the outer wall of the rotating shaft (42) by two round rods, and rotates with the rotating shaft (42); The movable sleeve (52) is movably connected to the inner wall of the fermentation tank (1), and the inner wall of the movable sleeve (52) is movably connected to the outer wall of the inner tank (11) and the kneading disc (51), and a conical groove is provided on the movable sleeve (52). Two movable slots (54) are respectively opened on the inner walls of the fermentation tank (1) and the movable sleeve (52); Multiple sliding rods (53) are fixedly connected to the outer walls of the kneading disc (51) and the movable sleeve (52), and are movably connected to two movable grooves (54). When the kneading disc (51) rotates, it drives the sliding rods (53) to push the movable sleeve (52) to move up and down in the movable groove (54), which is used to push the tea leaves to move upward and stir repeatedly.

4. A fermentation tank suitable for tea processing according to claim 3, characterized in that: The fermentation tank (1) and the inner tank (11) are provided with multiple air holes, and the movable sleeve (52) is provided with multiple through holes for gas exchange between the inside and outside of the fermentation tank (1).

5. A fermentation tank suitable for tea processing according to claim 4, characterized in that: The kneading unit (5) also includes: A vortex-shaped protrusion (55) is fixedly connected to the top of the support plate (41); Multiple elastic strips (56) are set at the bottom of the kneading disc (51) to knead the tea leaves in conjunction with the vortex protrusions (55); The cleaning mechanism (57) is located in the mounting groove at the bottom of the kneading disc (51) and is used to clean the support plate (41).

6. A fermentation tank suitable for tea processing according to claim 5, characterized in that: The cleaning mechanism (57) includes: The fixing rod (571) is fixedly connected in the mounting groove; The slider (572) is slidably connected to the outer wall of the fixed rod (571), and the outer wall of the fixed rod (571) is fitted with a spring (574) for pushing the slider (572) to slide on the fixed rod (571) away from the rotating shaft (42); The scraper (573) is fixedly connected to the bottom of the slider (572) and adheres to the top of the support plate (41), and is located between adjacent intervals of the vortex protrusions (55) for scraping off impurities attached to the support plate (41).

7. A fermentation tank suitable for tea processing according to claim 6, characterized in that: The scraper (573) has a rectangular hole, and a connecting plate (5732) is fixedly connected to the inner wall of the rectangular hole. Two brush plates (5731) are movably connected inside the rectangular hole, and two springs (5733) are provided on the inner wall of the rectangular hole to push the brush plates (5731) on both sides to move toward the vortex protrusion (55).

8. A fermentation tank suitable for tea processing according to claim 7, characterized in that: The bearing plate (41) is provided with multiple feeding holes, and the feeding holes are provided with a discharge mechanism (6) for discharging the kneaded tea leaves; The discharge mechanism (6) includes: The discharge ring (61) has a groove on its top and moves within the discharge hole; Multiple support rods (64) are fixedly connected to the bottom of the base plate (12) and the bearing plate (41), and the support rods (64) move through the discharge ring (61). Multiple fixing sleeves (62) are connected to the bottom of the discharge ring (61) and are sleeved on the outer wall of the support rod (64); Multiple springs (63) are sleeved on the outer wall of the support rod (64) and connected between the bearing plate (41) and the discharge ring (61), and are located in the groove to pull the discharge ring (61) upward. The feeding ring (611) is fixedly sleeved on the outer wall of the fixed sleeve (62); Multiple springs (65) are sleeved on the outer wall of the support rod (64) and connected between the base plate (12) and the feeding ring (611) to push the feeding ring (611) and the discharge ring (61) upward. The circular ring (612) is fixedly connected to the bottom of the feeding circular ring (611) and adheres to the inner wall of the base plate (12); Two L-shaped connecting rods (66) are connected at one end to the bottom of the feeding ring (611), and the other end of the L-shaped connecting rods (66) is fixedly inserted through the ring (612) and connected to a push plate (67). The rotating rod (68) is rotatably connected to the fermentation tank (1) and moves through the straight slot hole opened on the ring (612); Two elliptical blocks (69) are fixedly sleeved on the outer wall of the rotating rod (68) and abut against the top of the push plate (67) to push the push plate (67) downward; The elliptical block (69) is provided with a plurality of spherical blocks, and the push plate (67) is provided with a limiting hole, and the spherical blocks are inserted into the limiting hole to restrict the rotation of the push plate (67). Multiple dispersing rods (610) are fixedly sleeved on the outer wall of the rotating shaft (42) and located below the discharge ring (61) to disperse the tea leaves that have been kneaded into a ball after discharge.

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