A fermentation device for tea processing

Abstract

This invention relates to the field of tea processing technology and discloses a fermentation device for tea processing, including a fermentation tank and an inner isolation chamber that rotates inside. The inner isolation chamber is driven to rotate by a motor and a synchronous rod, and is supported by a sliding ball rolling between upper and lower rings to reduce the motor load. A stationary stirring mechanism is suspended in the inner isolation chamber. A stationary spiral plate (secondary) engages with a spiral plate (secondary) on the inner wall of the inner isolation chamber in the opposite direction, and the shearing action of a stationary vertical rod creates an axial reciprocating tumbling motion of the tea leaves within the chamber. A wavy ring is fixed to the outer wall of the inner isolation chamber. During rotation, the ring alternately presses a push rod to overcome spring resistance and slide, causing a brush plate to move radially back and forth to clear the side walls of the inner chamber. Simultaneously, the push rod synchronously extends into the chamber, causing a diagonal plate to move back and forth along a cross-shaped stirring rod, performing lateral mechanical shearing on the deeply accumulated tea leaves. This invention achieves the goals of uniformly turning and stirring fermented tea leaves, preventing clumping and breaking them up, and automatically cleaning the pores.

Description

Technical Field

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

[0002] Tea fermentation is a core process in the processing of teas such as black tea and dark tea. Fermentation equipment is a specialized mechanical facility used to hold the kneaded tea material and provide it with turning, mixing and environmental support.

[0003] In existing large-scale tea processing production, processing enterprises usually use drum-type or vertical tank fermentation equipment for fermentation. In actual operation, the operators put the kneaded tea leaves into the fermentation equipment. The entire tank is slowly rotated in one direction mainly by a motor, or the tea leaves at the bottom are turned over and pushed by the internally installed one-way rotating stirring blades. This conventional mechanical turning method is intended to make the concentrated pile of tea leaves relatively displaced, so as to promote the dissipation of heat inside the tea layer and make full contact with the air to maintain the physical environment required for the fermentation reaction.

[0004] The drawback of the existing technology is that the tea leaves in the early stage of fermentation have high moisture and viscosity due to the overflow of tea juice. When the tea leaves are turned or stirred in the fermentation chamber in a conventional one-way direction, they tend to stick together and clump together. They also rotate as a whole with the tank or stirring parts. This one-way mechanical force is difficult to form an effective vertical circulation and misaligned shearing inside the chamber. As a result, the tea leaves in the central accumulation area cannot be completely broken up and turned to the surface. This causes significant differences in the degree of fermentation of tea leaves in different locations within the same batch, making it difficult to ensure that the whole batch of tea leaves is fully and evenly turned and mixed. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a fermentation device for tea processing, which addresses the shortcomings of the prior art.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a fermentation device for tea processing, including a fermentation tank, and further comprising: Two arc-shaped fixing plates are fixedly connected to the front and rear sides of the outer wall of the fermentation tank, and each arc-shaped fixing plate is hinged with a support rod to support the fermentation tank and allow the fermentation tank to deflect along the hinge. The base is fixedly connected to the bottom of the support rod and is used to support the fermentation tank; The feed pipe is fixedly connected to the top of the fermentation tank and is connected to the inside of the fermentation tank. It is used to put tea leaves into the fermentation tank. The inner compartment is isolated and located inside the fermenter, and is driven to rotate inside the fermenter by a rotating mechanism located on its exterior. The separation plate is fixedly connected to the bottom of the fermenter's inner wall by multiple fixing rods, and isolates the inner chamber. The stirring mechanism is located in the inner compartment and is used to stir the tea leaves inside when the inner compartment rotates. The rotating mechanism includes: The lower ring is fixedly connected to the inner wall of the fermenter; The upper ring is positioned above the lower ring, and the inner ring of the upper ring is fixed to the outer wall of the isolation compartment; A groove is provided between the lower ring and the upper ring, and multiple sliding balls are provided in the groove, so that the upper ring rotates on the lower ring.

[0007] Preferably, the rotating mechanism further includes: The motor is installed at the bottom of the outer wall of the fermenter; The rotating shaft is rotatably connected to the bottom of the inner wall of the fermenter via bearings, and the bottom of the rotating shaft moves through the fermenter and extends downward to connect with the motor output end, while the top of the rotating shaft moves upward through the separation plate and extends upward. Multiple synchronizing rods are circumferentially and equidistantly connected to the outer wall output end of the rotating shaft, and the end of the synchronizing rod away from the rotating shaft is fixedly connected to the inner wall of the isolation chamber, which is used to drive the isolation chamber to rotate. Spiral plate one is fixedly connected to the inner wall of the isolation chamber. When the isolation chamber rotates, it causes the tea leaves to rise.

[0008] Preferably, the stirring mechanism includes: Multiple rings are equidistantly arranged inside the isolated inner chamber, with the top of the uppermost ring connected to the top of the inner wall of the fermenter; Multiple vertical rods are fixedly connected between two adjacent rings to secure the rings and suspend them inside the isolation compartment; Two cross-shaped stirring rods are positioned between the two central rings, with their radial ends fixed through the rings and extending outwards. Multiple longitudinal baffles are fixedly connected to the extension end of the cross-shaped stirring rod, and a spiral plate is fixedly connected to the outer wall of the longitudinal baffles for spiraling the tea leaves.

[0009] Preferably, the spiral direction of the second spiral plate is opposite to that of the first spiral plate.

[0010] Preferably, the fermenter has a discharge hole at the bottom and an installation groove inside the discharge hole, and a discharge baffle is rotatably connected in the installation groove to prevent waste from flowing out.

[0011] Preferably, the inner isolation chamber and the separation plate are respectively provided with through holes for the flow of impurities, and the outer wall of the inner isolation chamber is provided with a clearing mechanism for clearing the through holes, the clearing mechanism comprising: Two brush plates are respectively set on both sides of the outer wall of the isolation chamber and symmetrically arranged in the cavity between the fermenter and the isolation chamber for cleaning the through holes; Multiple push rods are fixedly connected to one side of the brush plate. One end of each push rod is fixedly inserted through the brush plate and extends towards the inner isolation chamber. The other end of each push rod is movable through the fermenter and extends outward.

[0012] Preferably, the unblocking mechanism further includes: Two baffles are fixedly connected to the outer extension end of the push rod; Multiple tension springs are fitted onto the outer wall of the push rod and located between the fermenter and the baffle. They are used to pull the baffle and push the push rod to move into the fermenter. Two wavy rings are fixedly connected to the outer wall of the isolation chamber and are spaced apart. The inner extension end of the push rod is arc-shaped and fits against the outer wall of the wavy ring, which is used to push the push rod to move to the outside of the fermentation tank.

[0013] Preferably, a movable plate is fixedly connected to the inner side of each of the two baffles, and one side of the movable plate moves through the fermenter and extends into it. The movable plate has movable holes and is fitted onto the outer wall of the vertical rod; The bottom of the movable plate is fixedly connected to a swashplate, which has a sliding hole and slides on the outer wall of the cross stirring rod to stir the tea leaves laterally.

[0014] The present invention, by adopting the above technical solution, can bring the following beneficial effects: 1. The fermentation equipment for tea processing uses a stationary stirring mechanism installed inside the isolated inner chamber. The spiral plate 2 on its outer wall is arranged in the opposite spiral direction to the spiral plate 1 on the inner wall of the isolated inner chamber. When the isolated inner chamber rotates, it drives the tea leaves to turn upwards. The stationary spiral plate 2 generates a downward guiding force on the rotating tea leaves. Combined with the stationary vertical rod and cross stirring rod, it shears the colliding tea leaves, thus forming an axial reciprocating cyclic displacement inside the isolated inner chamber, thereby ensuring that the fermented tea leaves are fully and evenly turned.

[0015] 2. The fermentation equipment for tea processing uses a wave-shaped ring fixedly fitted on the outer wall of the isolated inner chamber. Brushes connected to push rods are symmetrically arranged between the fermentation tank and the isolated inner chamber. In conjunction with the tension spring fitted on the outer wall of the push rod, the undulating contour of the wave-shaped ring alternately squeezes the end of the push rod when the isolated inner chamber rotates. This causes the push rod to overcome the elastic force of the tension spring and drive the brushes to move continuously in the radial direction. This allows the brush bristles to continuously enter and exit the through holes, thus automatically cleaning the tea residue that is blocked in the through holes of the side wall of the isolated inner chamber, thereby ensuring the aeration of fermentation.

[0016] 3. The fermentation equipment for tea processing, by fixing a baffle to the outer extension end of the push rod and using the baffle to drive the movable plate that runs through the fermentation tank, and cooperating with the movable plate fixedly connected to the bottom of the movable plate and sliding on the outer wall of the cross stirring rod, allows the outer push rod to move radially back and forth under the pressure of the wave-shaped ring. This enables the inner movable plate and the movable plate to move back and forth along the direction of the cross stirring rod, thereby achieving mechanical shearing and lateral displacement of the tea deeply accumulated inside the isolation inner chamber, thus preventing the high-humidity tea from clumping.

[0017] 4. The fermentation equipment for tea processing, by fixing a lower ring to the upper part of the inner wall of the fermentation tank and fixing an upper ring to the upper part of the outer wall of the isolation chamber, and by opening a sliding groove between the upper and lower rings and evenly distributing multiple sliding balls, allows the upper ring to smoothly roll on the lower ring through the sliding balls when the motor drives the isolation chamber to rotate continuously inside the fermentation tank via the rotating shaft and the synchronous rod. This converts the axial gravity load generated by the suspended rotation of the isolation chamber into rolling friction, thereby reducing the load on the drive motor and ensuring the stable operation of the equipment. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the front structure of the present invention; Figure 3 This is a schematic diagram of the internal structure of the fermenter of the present invention; Figure 4 For the present invention Figure 3 Enlarged structural diagram at point A in the middle; Figure 5 This is a schematic diagram of the cross-sectional structure of the present invention; Figure 6 For the present invention Figure 5 Enlarged structural diagram at point B; Figure 7 For the present invention Figure 5 Enlarged structural diagram at point C; Figure 8 This is a schematic diagram of the stirring mechanism of the present invention.

[0019] In the diagram: 1. Fermentation tank; 2. Arc-shaped fixing plate; 3. Support rod; 4. Base; 5. Feed pipe; 6. Isolation inner chamber; 7. Rotating mechanism; 71. Motor; 72. Shaft; 73. Synchronizing rod; 74. Spiral plate one; 75. Upper ring; 76. Lower ring; 77. Sliding ball; 8. Stirring mechanism; 81. Ring; 82. Vertical rod; 83. Cross stirring rod; 84. Longitudinal baffle; 85. Spiral plate II; 9. Unblocking mechanism; 91. Brush; 92. Wavy ring; 93. Push rod; 94. Baffle; 95. Tension spring; 96. Movable plate; 97. Actuating inclined plate; 10. Discharge baffle; 11. Fixing rod; 12. Separation plate. Detailed Implementation

[0020] 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. Example

[0021] Please see Figure 1-8 The present invention provides a fermentation device for tea processing, including a cylindrical fermentation tank 1. An arc-shaped fixing plate 2 is fixedly connected to the outer wall of the fermentation tank 1. A support rod 3 is hinged to each arc-shaped fixing plate 2. A base 4 is fixedly connected to the bottom end of the support rod 3. The fermentation tank 1 can be flipped on the support rod 3. A feed pipe 5 is fixedly connected to the top of the fermentation tank 1. A discharge hole is opened at the bottom of the fermentation tank 1. A discharge baffle 10 is rotatably connected to the inside of the discharge hole.

[0022] An isolation chamber 6 is coaxially arranged inside the fermenter 1. A separation plate 12 is fixedly connected to the bottom of the inner wall of the fermenter 1 by multiple fixing rods 11. The separation plate 12 is located below the isolation chamber 6.

[0023] The inner isolation chamber 6 is driven to rotate by a rotating mechanism 7. The rotating mechanism 7 includes a motor 71 installed at the bottom of the outer wall of the fermentation tank 1. A rotating shaft 72 is rotatably connected to the bottom of the inner wall of the fermentation tank 1. The bottom end of the rotating shaft 72 passes downward through the fermentation tank 1 and is connected to the motor 71. The top end of the rotating shaft 72 moves upward through the separation plate 12. Multiple synchronizing rods 73 are fixedly connected to the outer wall of the rotating shaft 72. The other end of the synchronizing rods 72 is fixedly connected to the inner wall of the inner isolation chamber 6. A lower ring 76 is fixedly connected to the upper part of the inner wall of the fermentation tank 1. An upper ring 75 is fixedly connected to the upper part of the outer wall of the inner isolation chamber 6. Multiple sliding balls 77 are arranged between the lower ring 76 and the upper ring 75.

[0024] Working principle: The motor 71 drives the rotating shaft 72 to rotate. The rotating shaft 72 drives the inner isolation chamber 6 to rotate through multiple synchronous rods 73. At this time, the inner isolation chamber 6 is on the upper ring 75, and the upper ring 75 rolls on the lower ring 76 through the sliding ball 77, so that the inner isolation chamber 6 can be fixed and rotated in the fermentation tank 1. Example

[0025] Please see Figure 1-8Based on the above embodiment 1, the inner isolation chamber 6 is equipped with a stirring mechanism 8.

[0026] The stirring mechanism 8 includes multiple rings 81. The top of the uppermost ring 81 is fixedly connected to the top of the inner wall of the fermentation tank 1 to keep the stirring mechanism 8 stationary. Adjacent rings 81 are fixedly connected by multiple vertical rods 82. The bottom of the stirring mechanism 8 and the synchronization rod 73 are spaced apart in the vertical direction to avoid interference between the synchronization rod 73 and the stirring mechanism 8 when the inner chamber 6 is rotated.

[0027] Two cross-shaped stirring rods 83 are arranged between the two middle rings 81. The radial ends of the cross-shaped stirring rods 83 are fixedly connected to longitudinal baffles 84. The inner wall of the isolation chamber 6 is fixedly connected to a spiral plate 74. The outer wall of the longitudinal baffles 84 is fixedly connected to a spiral plate 85. The spiral direction of the spiral plate 85 is opposite to that of the spiral plate 74.

[0028] When the inner isolation chamber 6 rotates, the spiral plate 74 drives the tea leaves to turn upwards. Since the stirring mechanism 8 is stationary, the tea leaves will collide with the vertical rod 82 and the longitudinal deflector 84 during the rotation of the inner isolation chamber 6, resulting in shearing. Since the spiral plate 85 is stationary and the spiral direction is opposite, the spiral plate 85 generates a downward guiding force on the rotating tea leaves, causing the tea leaves to undergo axial reciprocating cyclic displacement inside the inner isolation chamber 6. Example

[0029] Please see Figure 1-8 Based on the above embodiments, the outer wall of the isolation inner compartment 6 is provided with a drainage mechanism 9.

[0030] The unblocking mechanism 9 includes two brush plates 91 symmetrically arranged between the fermentation tank 1 and the isolation chamber 6. The bristles of the brush plates 91 are attached to the outer wall of the isolation chamber 6. Multiple push rods 93 are fixedly connected to the outer side of the brush plates 91. One end of the push rod 93 passes through the brush plate 91 inward, and the other end of the push rod 93 moves through the side wall of the fermentation tank 1 and is fixedly connected to a baffle 94. A tension spring 95 is sleeved on the outer wall of the push rod 93. The two ends of the tension spring 95 abut against the fermentation tank 1 and the baffle 94, respectively.

[0031] The outer wall of the isolation chamber 6 is fixedly fitted with two wavy rings 92 with undulating contours, and the end of the push rod 93 located inside the fermentation tank 1 abuts against the outer wall of the wavy rings 92.

[0032] Movable plates 96 are fixedly connected to the inner sides of the two baffles 94 respectively. The movable plates 96 can move through the side wall of the fermenter 1 and extend into the interior of the isolation chamber 6. The movable plates 96 are sleeved on the outer wall of the vertical rod 82. A sliding plate 97 is fixedly connected to the bottom of the movable plates 96. The sliding plate 97 is slidably sleeved on the outer wall of the cross stirring rod 83.

[0033] When the inner isolation chamber 6 rotates, the wave-shaped ring 92 rotates synchronously. The undulating contour of the wave-shaped ring 92 alternately squeezes the push rod 93. Combined with the elastic force of the tension spring 95, the push rod 93 drives the brush plate 91 to reciprocate in the radial direction of the fermentation tank 1. The brush plate 91 cleans the through holes on the side wall of the inner isolation chamber 6. At the same time, the baffle 94 drives the movable plate 96 and the agitator 97 to reciprocate along the direction of the cross stirring rod 83. The agitator 97 exerts a mechanical shearing and agitating action on the tea leaves inside the inner isolation chamber 6.

[0034] This invention provides a fermentation device for tea processing. Many methods and approaches exist for implementing this technical solution; the above are merely preferred embodiments. 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 device for tea processing, comprising a fermentation tank (1), characterized in that, Also includes: Two arc-shaped fixing plates (2) are fixedly connected to the front and rear sides of the outer wall of the fermentation tank (1), and each arc-shaped fixing plate (2) is hinged with a support rod (3) to support the fermentation tank (1) and make the fermentation tank (1) deflect along the hinge. The base (4) is fixedly connected to the bottom of the support rod (3) and is used to support the fermentation tank (1). The feed pipe (5) is fixedly connected to the top of the fermentation tank (1) and connected to the inside of the fermentation tank (1) for taking tea leaves into the fermentation tank (1); An isolation chamber (6) is located inside the fermenter (1) and is driven to rotate inside the fermenter (1) by a rotating mechanism (7) located outside it; The separation plate (12) is fixedly connected to the bottom of the inner wall of the fermenter (1) by multiple fixing rods (11) and isolates the inner chamber (6). The stirring mechanism (8) is located in the inner isolation chamber (6) and is used to stir the tea leaves inside when the inner isolation chamber (6) rotates. The rotating mechanism (7) includes: The lower ring (76) is fixedly connected to the inner wall of the fermenter (1); The upper ring (75) is positioned above the lower ring (76), and the inner ring of the upper ring (75) is fixed to the outer wall of the isolation chamber (6); A groove is provided between the lower ring (76) and the upper ring (75), and a plurality of sliding balls (77) are provided in the groove, so that the upper ring (75) rotates on the lower ring (76).

2. The fermentation equipment for tea processing according to claim 1, characterized in that: The rotating mechanism (7) further includes: The motor (71) is installed at the bottom of the outer wall of the fermenter (1); The rotating shaft (72) is rotatably connected to the bottom of the inner wall of the fermentation tank (1) via a bearing, and the bottom of the rotating shaft (72) moves through the fermentation tank (1) and extends downward to connect with the output end of the motor (71), and the top of the rotating shaft (72) moves upward through the separation plate (12) and extends upward. Multiple synchronizing rods (73) are circumferentially and equidistantly connected to the outer wall output end of the rotating shaft (72), and the end of the synchronizing rod (73) away from the rotating shaft (72) is fixedly connected to the inner wall of the isolation chamber (6) to drive the isolation chamber (6) to rotate; Spiral plate 1 (74) is fixedly connected to the inner wall of the isolation chamber (6). When the isolation chamber (6) rotates, it causes the tea leaves to rise.

3. The fermentation equipment for tea processing according to claim 2, characterized in that: The stirring mechanism (8) includes: Multiple rings (81) are equidistantly arranged inside the isolation chamber (6), and the top of the uppermost ring (81) is connected to the top of the inner wall of the fermenter (1); Multiple vertical rods (82) are fixedly connected between two adjacent circular rings (81) to fix the circular rings (81) and suspend them in the isolation compartment (6); Two cross-shaped stirring rods (83) are positioned between two central rings (81), with their radial ends fixedly penetrating the rings (81) and extending outwards; Multiple longitudinal baffles (84) are fixedly connected to the extension end of the cross stirring rod (83), and a spiral plate (85) is fixedly connected to the outer wall of the longitudinal baffles (84) for spiraling the tea leaves.

4. The fermentation equipment for tea processing according to claim 3, characterized in that: The spiral direction of the second spiral plate (85) is opposite to that of the first spiral plate (74).

5. The fermentation equipment for tea processing according to claim 4, characterized in that: The fermenter (1) has a discharge hole at the bottom and an installation groove inside the discharge hole. A discharge baffle (10) is rotatably connected inside the installation groove to block the waste from flowing out.

6. The fermentation equipment for tea processing according to claim 5, characterized in that: The inner isolation chamber (6) and the separation plate (12) are respectively provided with through holes for the flow of impurities. The outer wall of the inner isolation chamber (6) is provided with a clearing mechanism (9) for clearing the through holes. The clearing mechanism (9) includes: Two brush plates (91) are respectively set on both sides of the outer wall of the isolation chamber (6) and symmetrically set in the cavity between the fermentation tank (1) and the isolation chamber (6) for cleaning the through holes; Multiple push rods (93) are fixedly connected to one side of the brush plate (91). One end of the push rod (93) is fixedly inserted through the brush plate (91) and extends toward the side of the isolation chamber (6). The other end of the push rod (93) is movable through the fermenter (1) and extends outward.

7. The fermentation equipment for tea processing according to claim 6, characterized in that: The unblocking mechanism (9) also includes: Two baffles (94) are fixedly connected to the outer extension of the push rod (93); Multiple tension springs (95) are fitted on the outer wall of the push rod (93) and located between the fermenter (1) and the baffle (94). They are used to pull the baffle (94) and push the push rod (93) to move into the fermenter (1). Two wavy rings (92) are fixedly connected to the outer wall of the isolation chamber (6) and are spaced apart. The inner extension end of the push rod (93) is arc-shaped and fits against the outer wall of the wavy rings (92) to push the push rod (93) to move to the outside of the fermenter (1).

8. The fermentation equipment for tea processing according to claim 7, characterized in that: The inner sides of the two baffles (94) are respectively fixedly connected with movable plates (96), and one side of the movable plate (96) moves through the fermenter (1) and extends into it; The movable plate (96) has a movable hole and is fitted onto the outer wall of the vertical rod (82); The bottom of the movable plate (96) is fixedly connected to a swash plate (97). The swash plate (97) has a sliding hole and slides on the outer wall of the cross stirring rod (83) to laterally stir the tea leaves.

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