Black tea fermentation processing device and fermentation process

Abstract

The invention relates to the technical field of black tea fermentation, and particularly discloses a black tea fermentation processing device and a fermentation technology.The black tea fermentation processing device comprises a first supporting frame, a fermentation box is placed on the first supporting frame and comprises two first tank bodies and a second tank body, and the two first tank bodies are located on the two sides of the second tank body respectively; the interior of the first tank body is communicated with the interior of the second tank body; fixing rings are arranged at the two ends of the fermentation box and the joint of the first tank body and the second tank body, first partition plates are clamped on the four sets of fixing rings, and rubber rings are arranged between the first partition plates and the fixing rings; a turnover mechanism is arranged in the fermentation box; the technical problem that complete black tea cannot be crushed on the premise that the black tea can be uniformly fermented in the fermentation process, so that the broken tea rate of the black tea is reduced is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of black tea fermentation, and specifically discloses a black tea fermentation processing device and a fermentation process. Background Art

[0002] Black tea fermentation is a process of directionally converting the chemical substances in fresh leaves into characteristic components such as theaflavins and thearubigins through precisely controlled enzymatic oxidation reactions. This step not only endows black tea with the classic characteristics of "red soup and red leaves", but also constructs the unique aroma, taste and health value of black tea through a complex biochemical reaction network; black tea fermentation is the core process determining the quality of tea, and the key lies in promoting the enzymatic oxidation reaction of tea polyphenols to form characteristic substances such as theaflavins and thearubigins by precisely controlling temperature, humidity, oxygen supply and stirring operations.

[0003] For example, the invention patent with the application number 2018107011429 discloses a black tea fermentation device, including a black tea fermentation device, including an installation barrel and a rotating shaft. A fermentation barrel is fixed inside the installation barrel. An exhaust port is provided at the top of the installation barrel. A plurality of air holes are provided on the fermentation barrel. The rotating shaft is vertically arranged and driven by a motor. The rotating shaft is rotationally connected to both the installation barrel and the fermentation barrel. A fermentation basket is fixed on the rotating shaft located inside the fermentation barrel. A hollow stirring rod is rotationally connected to the inner wall of the fermentation barrel above the fermentation basket. A plurality of exhaust holes are provided on the stirring rod. Flexible blades are provided on the stirring rod. A driven bevel gear is fixed to the stirring rod. A driving bevel gear meshing with the driven bevel gear is provided on the rotating shaft. It also includes a gas supply unit, and the gas supply unit supplies oxygen containing moisture into the stirring rod. When the existing black tea fermentation device ferments black tea, it ensures uniform fermentation of black tea during the fermentation process by stirring. However, during stirring, the complete black tea may be crushed, resulting in a high broken tea rate of black tea. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide a black tea fermentation processing device and a fermentation process to solve the technical problem of not crushing the complete black tea on the premise of ensuring uniform fermentation of black tea during the fermentation process, thereby reducing the broken tea rate of black tea.

[0005] To achieve the above object, the present invention provides the following technical solution: A black tea fermentation processing device, including a first support frame, a fermentation box is placed on the first support frame. The fermentation box includes two groups of first tanks and a second tank. The two groups of first tanks are respectively located on both sides of the second tank, and the interior of the first tank is communicated with the interior of the second tank; fixing rings are provided at both ends of the fermentation box and at the connection of the first tank and the second tank. First partition boards are clamped on the four groups of fixing rings, and rubber rings are provided between the first partition boards and the fixing rings; a turning mechanism is provided inside the fermentation box.

[0006] Furthermore, the flipping mechanism includes several groups of flipping drums. Two groups of arc-shaped plates are fixedly connected inside the flipping drums. Several groups of ventilation holes are provided on the flipping drums. First fixing columns are fixedly connected to both ends of several groups of the flipping drums, and the two first fixing columns are in contact with the adjacent first partition plates. One group of the flipping drums is arranged in each of the two first tanks, and four groups of the flipping drums are arranged in the second tank. One group of the flipping drums in the second tank is aligned with the other two groups of the flipping drums. Several groups of limiting rods are arranged in each of the two first tanks, and several groups of the limiting rods are all inserted into the first partition plates. Several groups of the limiting rods in one of the first tanks are fixedly connected to a first fixing ring, and a feeding mechanism is arranged on several groups of the limiting rods in the other first tank. The flipping drums are connected to several groups of limiting rods through a matching component.

[0007] Furthermore, the feeding mechanism includes a second support frame, which is fixedly connected to the first support frame. A first fixing plate is arranged on the second support frame, and a first motor is arranged on the first fixing plate. The output end of the first motor is fixedly connected to a threaded rod, and a movable block is connected to the threaded rod through a thread. Extension blocks and movable frames are respectively fixedly connected to both ends of the movable block. The extension blocks are in contact with the second support frame, and the movable frames are sleeved on several groups of the limiting rods. Two groups of second fixing frames and two groups of arc-shaped blocks are fixedly connected to the second support frame.

[0008] Furthermore, an auxiliary flipping mechanism is arranged between the four groups of flipping drums in the second tank. The auxiliary flipping mechanism includes a rotating device, which is fixedly connected to the second tank. The output end of the rotating device is fixedly connected to a connecting shaft, and the connecting shaft is located inside the second tank. Four connecting components are arranged on the connecting shaft, and the four groups of flipping drums are respectively located in the four connecting components. The connecting component includes two groups of second fixing rings, and several groups of limiting rods are arranged between the two groups of second fixing rings. Four limiting components are arranged on the connecting shaft, and the four limiting components are respectively connected to the four groups of flipping drums.

[0009] Furthermore, the limiting component includes a second connecting frame, which is fixedly connected to the connecting shaft. A hinge seat is hinged on the second connecting frame, and a second fixing column is fixedly connected to the hinge seat. The second fixing column is inserted into one of the ventilation holes inside the flipping drum, and a torsion spring is arranged between the hinge seat and the second connecting frame.

[0010] Further, the fitting assembly includes several groups of connecting rings, several groups of the connecting rings are fixedly connected to the turning drum, several groups of limiting blocks are slidably clamped on several groups of the connecting rings, one group of the limiting blocks on several groups of the connecting rings is fixedly connected to the connecting rod, and several groups of the limiting rods are respectively slidably clamped in the limiting blocks.

[0011] Further, a discharging mechanism is arranged on one group of the first tanks, the discharging mechanism includes two groups of third fixing frames, two groups of the third fixing frames are fixedly connected to the first tank, and the first tank is located between the two groups of the third fixing frames; several groups of detachable inclined blocks are arranged on the third fixing frames; a detachable first movable rod is arranged on the lowermost limiting rod, the first movable rod is clamped on the limiting rod, a second movable rod is clamped on the first movable rod, and the second movable rod is inserted through the first fixing ring.

[0012] Further, a rotating mechanism is arranged on the fermentation box, the rotating mechanism includes a second motor, a second fixing plate is arranged on the second support frame, the second motor is fixedly connected to the second fixing plate, a connecting shaft is fixedly connected to the output end of the second motor, several groups of rubber blocks are fixedly connected to the connecting shaft, and the rubber blocks are pentagonal; several groups of connecting grooves are formed in the first tank, several groups of the rubber blocks are respectively slidably clamped in the connecting grooves, and several groups of the rubber blocks respectively abut against the corresponding connecting rings.

[0013] Further, there are first fixing frames on two groups of the first tanks and the second tank, a temperature control device, a humidity control device and an oxygen concentration control device are arranged in the first fixing frame, and one ends of the temperature control device, the humidity control device and the oxygen concentration control device are all located in the second tank / the first fixing frame; the interior of the first tank is an activation chamber, the interior of the second tank is a fermentation chamber, and the interior of the other group of the first tanks is a stabilization chamber.

[0014] A black tea fermentation process includes the following steps:

[0015] S1: First, the staff puts the black tea leaves to be fermented into the turning drum, then places the turning drum between two groups of arc-shaped blocks. At this time, the turning drum is located on the two groups of arc-shaped blocks. Then, first partitions are placed on both sides of the turning drum. Then, the staff moves the connecting rod to align several groups of connecting rods with the limiting rods respectively. Then, the first motor is started. Through the cooperation of the threaded rod and the movable block, the movable frame is driven to move. The movable frame drives the first partitions and the turning drum to move, so that the connecting rod is clamped on the corresponding limiting rod until the two groups of first partitions are respectively clamped on the corresponding fixing rings. At this time, the turning drum is completely located in the activation chamber;

[0016] S2: Then, the staff use the temperature control device, humidity control device, and oxygen concentration control device in the activation chamber to control the temperature in the activation chamber at 30°C - 35°C, maintain the air humidity at 85% - 90%, and simultaneously control the oxygen concentration at 21% - 23%. This can activate polyphenol oxidase and initiate the oxidation reaction of catechins. React for 1 hour under these conditions, and at the same time start the second motor. Drive the rubber block to rotate through the connecting shaft, so that the turning drum rotates intermittently, thus ensuring that the tea leaves in the turning drum can be evenly fermented;

[0017] S3: The staff pre-place another set of turning drums and the first partition in the feeding mechanism. At the same time, use the temperature control device, humidity control device, and oxygen concentration control device in the fermentation chamber to control the temperature in the fermentation chamber at 28°C - 32°C, maintain the air humidity at 90% - 95%, and simultaneously control the oxygen concentration at 25% - 28%. At this time, the best fermentation environment for black tea is achieved, which can accelerate the formation of theaflavins and promote the conversion of aroma precursor substances;

[0018] S4: When the tea leaves in the previous set of turning drums are activated, first control the rotating device to drive the fermented turning drum to align with the first tank body. Then start the first motor, and through the cooperation of the threaded rod with the movable block and the movable frame, push the turning drum into the activation chamber. At this time, the turning drum and the first partition in the activation chamber move into the fermentation chamber until several groups of the first partitions are all clamped in the corresponding fixed rings. Then start the rotating device, and the rotating device drives the turning drum to rotate to ensure that the tea leaves in the turning drum can be evenly fermented;

[0019] S5: When the tea leaves in the activation chamber are activated, continue to put another set of turning drums, and push the tea leaves in the activation chamber into the fermentation chamber, and so on. Until nearly 4 hours after the tea leaves initially enter the fermentation chamber turning drum, the staff pre-turn on the temperature control device, humidity control device, and oxygen concentration control device in the stabilization chamber, control the temperature in the stabilization chamber at 22°C - 25°C, maintain the air humidity at 80% - 85%, and simultaneously control the oxygen concentration at 18% - 21%. Under this environment, black tea can slow down the enzyme activity, lock the theaflavin / thearubigin ratio, prevent over-oxidation, and make the state of the tea leaves tend to be stable;

[0020] S5: When the tea leaves in the turning drum in the fermentation chamber are fermented, control the rotating device to drive a set of fermented turning drums to align with the first tank body. Then push the turning drum in the feeding mechanism, and push the aligned turning drums in sequence. The turning drum on the feeding mechanism moves into the activation chamber, the turning drum in the activation chamber moves into the fermentation chamber, and the turning drum in the fermentation chamber moves into the stabilization chamber;

[0021] S6: When the tea leaves in the stabilization chamber have fermented for 1 hour, the state of the tea leaves tends to be stable and fermentation will no longer occur. At this time, the tea leaves in both the fermentation chamber and the activation chamber have completed the fermentation at this stage. At this time, only a new turning drum needs to be pushed into the fermentation box. At this time, the turning drum and the corresponding first partition plate in the stabilization chamber are pushed out. At this time, the turning drum is located outside. Then, the staff first separates the second movable rod, the first movable rod from the limiting rod. At this time, the turning drum falls onto the inclined block. Then, the staff removes the inclined block and takes out the tea leaves in the turning drum.

[0022] The working principle and beneficial effects of this solution are as follows:

[0023] During use, the internal spaces of the activation chamber, the fermentation chamber, and the stabilization chamber are separated, and the internal temperature, humidity, and oxygen concentration are all different, and they are all maintained at the best level suitable for the current fermentation of the tea leaves, which can ensure that the tea leaves can enter the fermentation state more quickly. When the tea leaves move in the turning drum, due to the arc-shaped plate in the turning drum, some tea leaves will move onto the arc-shaped plate. At this time, the tea leaves blocked can contact the air, and at the same time, the tea leaves will not be affected by the outside world during tumbling, thereby reducing the broken tea rate.

[0024] During fermentation, the turning drum rotates to turn the tea. When the turning drum in the second tank rotates, the turning drum revolves around the rotating device, and at the same time, the limiting component prevents the turning drum from rotating on its own axis on the connecting shaft, ensuring that the turning drum can only revolve around the rotating device. When the turning drum in the first tank rotates, it is driven by a rotating mechanism. Due to the special shape of the rubber block, the rubber block does not always contact the turning drum. When the rubber block contacts the turning drum, the rubber block is squeezed and deformed. At this time, the rubber block can drive the turning drum to rotate, and the turning drum rotates on its own axis, which can ensure that the tea leaves in the turning drum can be evenly mixed. At the same time, the tea leaves tumble in the turning drum, which can reduce the waste tea rate. Description of the Drawings

[0025] Figure 1 is a schematic structural diagram of the embodiment;

[0026] Figure 2 is a schematic diagram of the internal structure of the fermentation box in the embodiment;

[0027] Figure 3 is Figure 2 an enlarged schematic diagram of part A in

[0028] Figure 4 is a schematic structural diagram of the feeding mechanism and the rotating mechanism in the embodiment;

[0029] Figure 5 is a schematic structural diagram of the fermentation box in the embodiment;

[0030] Figure 6Schematic structural diagram of the tumbling mechanism in the embodiment;

[0031] Figure 7 is Figure 6 Enlarged schematic diagram at position B in ;

[0032] Figure 8 is Figure 6 Enlarged schematic diagram at position C in ;

[0033] Figure 9 Schematic structural diagram of the tumbling cylinder in the embodiment.

[0034] The markings in the drawings are as follows: the first support frame 101, the second support frame 102;

[0035] The first tank body 201, the second tank body 202, the first fixing frame 203, the temperature control device 204, the humidity control device 205, the oxygen concentration control device 206, the first partition plate 207, the rubber ring 208, the limiting rod 209, the first fixing ring 210, the first movable rod 211, the second movable rod 212, the fixing ring 213;

[0036] The first fixing plate 301, the first motor 302, the threaded rod 303, the first fixing seat 304, the movable block 305, the extension block 306, the movable frame 307, the second fixing frame 308, the arc-shaped block 309;

[0037] The tumbling cylinder 401, the first fixing column 402, the connecting ring 403, the limiting block 404, the connecting rod 405, the fixing groove 406, the arc-shaped plate 407;

[0038] The rotating device 501, the connecting shaft 502, the first connecting frame 503, the second fixing ring 504, the second connecting frame 505, the hinge seat 506, the torsion spring 507, the second fixing column 508;

[0039] The third fixing frame 601, the inclined block 602, the fixing block 603;

[0040] The second fixing plate 701, the second motor 702, the connecting shaft 703, the second fixing seat 704, the rubber block 705, the connecting groove 706. Detailed implementation manners

[0041] The following is further detailed through specific implementation manners:

[0042] Embodiment

[0043] Such as Figures 1 to 9As shown, a black tea fermentation processing device is disclosed, which includes a first support frame 101. A fermentation tank is placed on the first support frame 101. The fermentation tank includes two groups of first tanks 201 and a second tank 202. The two groups of first tanks 201 are respectively located on both sides of the second tank 202. The first tank 201 is fixedly connected to the second tank 202, and the interior of the first tank 201 is communicated with the interior of the second tank 202. Fixed rings 213 are provided on the two groups of first tanks 201, and fixed rings 213 are provided at the connection between the first tank 201 and the second tank 202. First partitions 207 are clamped on the four groups of fixed rings 213. A rubber ring 208 is provided between the first partition 207 and the corresponding fixed ring 213. The cross-section of the rubber ring 208 is circular. First fixing frames 203 are fixedly connected to the tops of the two groups of first tanks 201 and the second tank 202. A temperature control device 204, a humidity control device 205, and an oxygen concentration control device 206 are arranged in the first fixing frame 203. One ends of the temperature control device 204, the humidity control device 205, and the oxygen concentration control device 206 are all located in the second tank 202 / the first fixing frame 203. A turning mechanism is arranged in the fermentation tank. The interior of one group of first tanks 201 is an activation chamber, the interior of the second tank 202 is a fermentation chamber, and the interior of the other group of first tanks 201 is a stabilization chamber.

[0044] The turning mechanism includes several groups of turning drums 401. Two arc-shaped plates 407 are fixedly connected inside the turning drum 401. The centers of the two arc-shaped plates 407 do not coincide with the circle of the turning drum 401. Several ventilation holes are provided on the turning drum 401. First fixing columns 402 are fixedly connected to both ends of the several groups of turning drums 401. One group of turning drums 401 is arranged in the first tank 201, and four groups of turning drums 401 are arranged in the second tank 202. One of the turning drums 401 in the second tank 202 is aligned with the turning drum 401 in the first tank 201. The two first fixing columns 402 on the turning drum 401 are respectively in contact with the adjacent two first partitions 207. An auxiliary turning mechanism is arranged between the four groups of turning drums 401 in the second tank 202. Several limiting rods 209 are arranged in both groups of first tanks 201. The several limiting rods 209 are all inserted into the first partition 207. A first fixing ring 210 is arranged between the several limiting rods 209 in one group of first tanks 201. The first fixing ring 210 is fixedly connected to the several limiting rods 209. A feeding mechanism is arranged between the several limiting rods 209 on the other group of first tanks 201. The turning drum 401 is connected to the several limiting rods 209 through a matching component.

[0045] The matching components include several groups of connecting rings 403, and several groups of connecting rings 403 are all fixedly connected to the turning drum 401. Several groups of limiting blocks 404 are slidably clamped on several groups of connecting rings 403. Among them, several groups of limiting blocks 404 are all fixedly connected to the connecting rod 405. A fixing groove 406 is formed on the connecting rod 405, and several groups of limiting rods 209 are respectively slidably clamped in the corresponding fixing grooves 406.

[0046] The feeding mechanism includes a second support frame 102. The second support frame 102 is fixedly connected to the first support frame 101. A first fixing plate 301 is arranged on the second support frame 102. A first motor 302 is fixedly connected to the first fixing plate 301 by bolts. The output end of the first motor 302 is fixedly connected to a threaded rod 303 through a coupling. Two groups of first fixing seats 304 are fixedly connected to the first fixing plate 301. Both ends of the extension block 306 are respectively inserted into the two groups of first fixing seats 304. The extension block 306 is rotatably connected to the first fixing seat 304. A movable block 305 is arranged on the threaded rod 303. The movable block 305 is threadedly connected to the threaded rod 303. One end of the movable block 305 is fixedly connected to the extension block 306. The extension block 306 contacts the second support frame 102. The other end of the movable block 305 is fixedly connected to a movable frame 307. The movable frame 307 is sleeved on several groups of limiting rods 209. Two groups of second fixing frames 308 are fixedly connected to the second support frame 102. Arc-shaped blocks 309 are fixedly connected to both groups of second fixing frames 308.

[0047] An unloading mechanism is arranged on the other group of first tanks 201. The unloading mechanism includes two groups of third fixing frames 601. The two groups of third fixing frames 601 are fixedly connected to the first tank 201. The first tank 201 is fixedly connected between the two groups of third fixing frames 601. Several groups of detachable inclined blocks 602 are arranged on the third fixing frames 601. Several groups of inclined blocks 602 are used to support the turning drum 401. A detachable first movable rod 211 is arranged on the lowermost limiting rod 209. One end of the first movable rod 211 is clamped on the limiting rod 209, and the other end is clamped with a second movable rod 212. The second movable rod 212 is inserted into the first fixing ring 210 and is slidably connected to the first fixing ring 210.

[0048] The auxiliary turning mechanism includes a rotating device 501. The rotating device 501 is fixedly connected to the second tank 202 by bolts. The output end of the rotating device 501 is fixedly connected to a connecting shaft 502. The connecting shaft 502 is rotatably connected to the second tank 202. Four groups of connecting components are arranged on the connecting shaft 502. Four groups of turning drums 401 are respectively located in the four groups of connecting components. The connecting component includes two groups of second fixing rings 504. Several groups of limiting rods 209 are fixedly connected between the two groups of second fixing rings 504. Four groups of limiting components are arranged on the connecting shaft 502. The four groups of limiting components are respectively connected to the four groups of turning drums 401.

[0049] The limiting component includes a second connecting frame 505, the second connecting frame 505 is fixedly connected to the connecting shaft 502, a hinge seat 506 is hinged on the second connecting frame 505, a second fixing column 508 is fixedly connected to the hinge seat 506, the second fixing column 508 is installed in one group of ventilation holes in the turning drum 401, a torsion spring 507 is arranged between the hinge seat 506 and the second connecting frame 505, and two ends of the torsion spring 507 are respectively fixedly connected between the hinge seat 506 and the second connecting frame 505. A plurality of groups of limiting rods 209 on one group of limiting components are aligned with a plurality of groups of limiting rods 209 in the two first tanks 201, and the plurality of groups of limiting rods 209 in the same plane are in a straight line at this time.

[0050] A rotating mechanism is arranged on the two turning drums 401 in the first tank 201. The rotating mechanism includes a second motor 702. A second fixing plate 701 is fixedly connected to the second support frame 102. The second motor 702 is fixedly connected to the second fixing plate 701 by bolts. The output end of the second motor 702 is fixedly connected to a connecting shaft 502 through a coupling. Second fixing seats 704 are fixedly connected to the two first tanks 201. Two ends of the connecting shaft 502 are respectively installed in the second fixing seats 704, and the connecting shaft 502 is rotatably connected to the second fixing seats 704. A plurality of groups of rubber blocks 705 are fixedly connected to the connecting shaft 502. The rubber blocks 705 are pentagonal and made of rubber. A plurality of groups of connecting grooves 706 are formed in the first tank 201. The plurality of groups of rubber blocks 705 are respectively slidably clamped in the connecting grooves 706, and the plurality of groups of rubber blocks 705 respectively abut against the corresponding connecting rings 403.

[0051] Among them, the temperature control device 204, the humidity control device 205, the oxygen concentration control device 206 and the rotating device 501 are all well-known technologies to those skilled in the art, and their structures, connection methods, practical methods and usage effects are all well-known to those skilled in the art.

[0052] A black tea fermentation process includes the following steps:

[0053] S1: First, the staff puts the black tea leaves to be fermented into the turning drum 401. First, ensure that the movable frame 307 is at a position close to the first fixed plate 301 at this time, and then place the turning drum 401 between the two arc-shaped blocks 309. At this time, the two arc-shaped blocks 309 lift the turning drum 401, and then place the first partition plates 207 on both sides of the turning drum 401. Then, the staff moves the connecting rod 405 to align several groups of connecting rods 405 with the limiting rods 209 respectively, and then starts the first motor 302. The output end of the first motor 302 drives the threaded rod 303 to rotate. The threaded rod 303 drives the movable block 305 to move through rotation. The extension block 306 moves on the second support frame 102 at this time to ensure that the movable block 305 does not rotate. The movable block 305 drives the movable frame 307 to move. The movable frame 307 slides on several groups of limiting rods 209. The movable frame 307 drives the first partition plate 207 to move. The first partition plate 207 drives the limiting block 404 and the connecting rod 405 to move, so that the connecting rod 405 is clamped on the corresponding limiting rod 209. At this time, several groups of limiting rods 209 cooperate with the connecting rod 405 to fix the turning drum 401 until the two first partition plates 207 are respectively clamped on the fixing rings 213 on both sides of the first tank body 201. At this time, the turning drum 401 is completely located in the activation chamber.

[0054] S2: Then, the staff starts the temperature control device 204, humidity control device 205 and oxygen concentration control device 206 corresponding to the activation chamber, controls the temperature in the activation chamber at 30°C - 35°C, keeps the air humidity at 85% - 90%, and at the same time controls the oxygen concentration at 21% - 23% to reach the optimal temperature for black tea activation, activates polyphenol oxidase, and starts the catechin oxidation reaction. React under these conditions for 1 hour. At the same time, start the second motor 702. The output end of the second motor 702 drives the connecting shaft 502 to rotate. The connecting shaft 502 drives the corresponding rubber block 705 to rotate. When the rubber block 705 rotates, it drives the corresponding turning drum 401 to rotate intermittently. At this time, the limiting block 404 slides in the connecting ring 403, so as to ensure that the tea leaves in the turning drum 401 can be evenly fermented.

[0055] S3: The staff places another set of turning drum 401 and first partition plate 207 in the feeding mechanism in advance, and at the same time, starts the temperature control device 204, humidity control device 205 and oxygen concentration control device 206 in the fermentation chamber in advance, controls the temperature in the fermentation chamber at 28°C - 32°C, keeps the air humidity at 90% - 95%, and at the same time controls the oxygen concentration at 25% - 28%. At this time, the optimal fermentation environment for black tea is achieved, accelerating the formation of theaflavins and promoting the conversion of aroma precursor substances.

[0056] S4: After the tea leaves in the current set of tumbling rollers 401 are activated, the rotating device 501 is first controlled to drive the set of tumbling rollers 401 that have been fermenting for 4 hours to align with the first tank body 201. At this time, the limiting rods 209 are aligned with the corresponding two adjacent sets of limiting rods 209 to ensure that the tumbling rollers 401 can move from the activation chamber to the fermentation chamber. Then the first motor 302 is started. The first motor 302 cooperates with the movable block 305 and the movable frame 307 through the threaded rod 303 to push the tumbling roller 401 into the activation chamber. At this time, the tumbling roller 401 located in the activation chamber is pushed, and at the same time, the first partition 207 is also pushed, so that the tumbling roller 401 The oxygen concentration control device 206 in the first tank body 201 is moved to the limiting rod 209 in the second tank body 202 until the groups of first partitions 207 are all clamped in the corresponding fixing rings 213. At this time, the new tumbling drum 401 is located in the activation chamber, and the activated tumbling drum 401 is located in the fermentation chamber. At this time, the tumbling drum 401 is fermented, and then the rotating device 501 is started. The rotating device 501 drives the tumbling drum 401 to rotate. At this time, the tumbling drum 401 revolves around the rotating device 501, thereby ensuring that the tea leaves in the tumbling drum 401 can be tumbled and the tea leaves in the tumbling drum 401 can be fermented evenly.

[0057] S5: When the tea leaves in the activation chamber are activated, another set of tumbling rollers 401 are placed in the activation chamber to push the tea leaves in the activation chamber into the fermentation chamber. This process is repeated until nearly 4 hours after the tea leaves are initially placed in the fermentation chamber tumbling rollers 401. The staff then turns on the temperature control device 204, humidity control device 205 and oxygen concentration control device 206 in the stabilization chamber in advance, controls the temperature in the stabilization chamber to 22°C-25°C, maintains the air humidity at 80%-85%, and controls the oxygen concentration at 18%-21%. In this environment, the enzyme activity of black tea can be slowed down, the ratio of theaflavins / thearubigins can be locked, and excessive oxidation can be prevented, thus stabilizing the state of the tea leaves.

[0058] S6: After the tea leaves in the tumbling roller 401 in the fermentation chamber have fermented for 4 hours, the rotating device 501 is controlled to drive a group of tumbling rollers 401 that have been fermenting for 4 hours to align with the first tank body 201. At this time, the limiting rod 209 is aligned with the corresponding two adjacent groups of limiting rods 209. Then, the tumbling roller 401 in the feeding mechanism is pushed, and the tumbling rollers 401 aligned with it are pushed in turn. The tumbling roller 401 on the feeding mechanism moves into the activation chamber, the tumbling roller 401 in the activation chamber moves into the fermentation chamber, and the tumbling roller 401 in the fermentation chamber moves into the stabilization chamber.

[0059] S7: After the tea leaves in the stabilization chamber have been stable for 1 hour, the state of the tea leaves tends to be stable at this time and will no longer ferment. At this time, the tea leaves in the fermentation chamber and the activation chamber have both completed the fermentation in this stage. At this time, only the new turnover drum 401 needs to be pushed into the fermentation box, and the turnover drum 401 and the corresponding first partition plate 207 in the stabilization chamber are pushed out.

[0060] S8: When the turnover drum 401 is located on the discharging mechanism, the staff first pulls the second movable rod 212 to separate the second movable rod 212 from the first movable rod 211, and then separates the first movable rod 211 from the limiting rod 209. At this time, the turnover drum 401 falls onto the inclined block 602, and the inclined block 602 supports the turnover drum 401. Then the staff removes the inclined block 602 and takes out the tea leaves in the turnover drum 401.

[0061] During specific implementation:

[0062] During use, the internal spaces of the activation chamber, the fermentation chamber and the stabilization chamber are separated, and the internal temperature, humidity and oxygen concentration are all different, and all are maintained at the best for the current fermentation situation of the tea leaves, which can ensure that the tea leaves can enter the fermentation state more quickly. Moreover, when the turnover drum 401 moves in the fermentation box, the internal spaces of the activation chamber, the fermentation chamber and the stabilization chamber will not be affected too much. The temperature inside the turnover drum 401 can be changed to the appropriate temperature more quickly. And during fermentation, it is a cyclic fermentation, and tea leaves are fermenting in each step, which can improve the fermentation efficiency and at the same time eliminate the need for manual tea turning.

[0063] When the tea leaves move in the turnover drum 401, due to the presence of the arc plate 407 in the turnover drum 401, when the turnover drum 401 rotates, some of the tea leaves in contact with the inner wall of the turnover drum 401 will move onto the arc plate 407. At this time, the tea leaves blocked can come into contact with the outside air, enabling the tea leaves to ferment fully and preventing the situation where some tea leaves fail to ferment due to being unable to contact the outside air.

[0064] When the limit component is in use, when the turning drum 401 moves from the activation chamber to the fermentation chamber or from the fermentation chamber to the stabilization chamber, the second fixing column 508 moves on several groups of air-permeable holes on the turning drum 401. The second fixing column 508 can drive the hinge seat 506 to rotate around the second connecting frame 505. The torsion spring 507 between the second connecting frame 505 and the hinge seat 506 can drive the hinge seat 506 to reset, ensuring that the second fixing column 508 is always parallel to the second connecting frame 505 when the hinge seat 506 is not disturbed; when the rotating device 501 drives the turning drum 401 to rotate, the second fixing column 508 can fix the turning drum 401 on the connecting shaft 502, preventing the turning drum 401 from rotating on its own axis on the connecting shaft 502, ensuring that the turning drum 401 can only revolve around the rotating device 501, preventing the turning drum 401 from rotating on its own axis while revolving, so as to offset the rotation and ensure that the tea leaves in the turning drum 401 can be evenly mixed.

[0065] When the rotating mechanism drives the turning drum 401 to rotate, due to the special shape of the rubber block 705, the rubber block 705 does not always contact the turning drum 401. When the rubber block 705 contacts the turning drum 401, the rubber block 705 is squeezed and deformed. At this time, the rubber block 705 can drive the turning drum 401 to rotate. Since the rotational speed of the turning drum 401 is low when it rotates, there will be no slipping phenomenon.

[0066] The above are only embodiments of the present invention. Specific structures and common knowledge such as characteristics that are well known in the art are not described in detail herein. It should be noted that for those skilled in the art, without departing from the structure of the present invention, several deformations and improvements can still be made, and these should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicality of the present invention.

Claims

1. A black tea fermentation and processing device, characterized in that: It includes a first support frame, on which a fermentation box is placed. The fermentation box includes two groups of first tanks and a second tank. The two groups of first tanks are respectively located on both sides of the second tank, and the interiors of the first tanks communicate with the interior of the second tank; Fixed rings are provided at both ends of the fermentation box and at the connection between the first tank and the second tank. First partitions are clamped on the four groups of fixed rings, and rubber rings are provided between the first partitions and the fixed rings; A turning mechanism is provided inside the fermentation box.

2. The a black tea fermentation processing device according to claim 1, characterized in that: The turning mechanism includes several groups of turning drums. Two arc-shaped plates are fixedly connected inside the turning drums. A number of air holes are provided on the turning drums. First fixing columns are fixedly connected to both ends of the several groups of turning drums, and the two first fixing columns are in contact with the adjacent first partitions; One group of turning drums is provided in each of the two first tanks, and four groups of turning drums are provided in the second tank. One of the turning drums in the second tank is aligned with the other two turning drums; A number of limiting rods are provided in each of the two first tanks. The number of limiting rods all penetrate through the first partitions. A number of the limiting rods in one of the first tanks are fixedly connected to the first fixed ring, and a feeding mechanism is provided on a number of the limiting rods in the other first tank. The turning drum is connected to the number of limiting rods through a cooperation component.

3. The black tea fermentation processing device according to claim 2, characterized in that: The feeding mechanism includes a second support frame, which is fixedly connected to the first support frame. A first fixing plate is provided on the second support frame. A first motor is provided on the first fixing plate. A threaded rod is fixedly connected to the output end of the first motor, and a movable block is connected to the threaded rod through a thread; Extension blocks and movable frames are respectively fixedly connected to both ends of the movable block. The extension block is in contact with the second support frame, and the movable frame is sleeved on the number of limiting rods; Two second fixing frames and two arc-shaped blocks are fixedly connected to the second support frame.

4. A black tea fermentation and processing device according to claim 3, characterized in that: An auxiliary turning mechanism is provided between the four turning drums in the second tank. The auxiliary turning mechanism includes a rotating device, which is fixedly connected to the second tank. A connecting shaft is fixedly connected to the output end of the rotating device, and the connecting shaft is located inside the second tank; Four connecting components are provided on the connecting shaft. The four turning drums are respectively located in the four connecting components. The connecting component includes two groups of second fixed rings, and a number of limiting rods are provided between the two groups of second fixed rings; Four limiting components are provided on the connecting shaft, and the four limiting components are respectively connected to the four turning drums.

5. A black tea fermentation and processing device according to claim 4, characterized in that: The limiting component includes a second connecting frame, which is fixedly connected to the connecting shaft. A hinge seat is hinged on the second connecting frame. A second fixing column is fixedly connected to the hinge seat. The second fixing column penetrates through one of the air holes inside the turning drum, and a torsion spring is provided between the hinge seat and the second connecting frame.

6. The a black tea fermentation processing device according to claim 5, wherein: The matching assembly includes several groups of connecting rings, several groups of the connecting rings are fixedly connected to the turning drum, several groups of limiting blocks are slidably clamped on several groups of the connecting rings, one group of the limiting blocks on several groups of the connecting rings is fixedly connected to the connecting rod, and several groups of the limiting rods are respectively slidably clamped in the limiting blocks.

7. The a black tea fermentation processing device according to claim 6, characterized in that: An unloading mechanism is arranged on one group of the first tanks, the unloading mechanism includes two groups of third fixing frames, both groups of the third fixing frames are fixedly connected to the first tank, and the first tank is located between the two groups of the third fixing frames; Several groups of detachable inclined blocks are arranged on the third fixing frame; A detachable first movable rod is arranged on the lowermost limiting rod, the first movable rod is clamped on the limiting rod, a second movable rod is clamped on the first movable rod, and the second movable rod is inserted through the first fixing ring.

8. A black tea fermentation and processing device according to claim 7, characterized in that: A rotating mechanism is arranged on the fermentation box, the rotating mechanism includes a second motor, a second fixing plate is arranged on the second support frame, the second motor is fixedly connected to the second fixing plate, a connecting shaft is fixedly connected to the output end of the second motor, and several groups of rubber blocks are fixedly connected to the connecting shaft, and the rubber blocks are pentagonal; Several groups of connecting grooves are formed in the first tank, several groups of the rubber blocks are respectively slidably clamped in the connecting grooves, and several groups of the rubber blocks respectively abut against the corresponding connecting rings.

9. The a kind of black tea fermentation processing device according to claim 8, characterized in that: There are first fixing frames on the two first tanks and the second tank, a temperature control device, a humidity control device and an oxygen concentration control device are arranged in the first fixing frame, and one ends of the temperature control device, the humidity control device and the oxygen concentration control device are all located in the second tank / the first fixing frame; The interior of the first tank is an activation chamber, the interior of the second tank is a fermentation chamber, and the interior of the other first tank is a stabilization chamber.

10. A black tea fermentation process, characterized in that: It includes the following steps: S1: First, the staff puts the black tea leaves to be fermented into the turning drum, then places the turning drum between two groups of arc-shaped blocks. At this time, the turning drum is located on the two groups of arc-shaped blocks. Then, first partitions are placed on both sides of the turning drum. Then, the staff moves the connecting rod to align several groups of connecting rods with the limiting rods respectively. Then, the first motor is started. Through the cooperation of the threaded rod and the movable block, the movable frame is driven to move. The movable frame drives the first partition and the turning drum to move, so that the connecting rod is clamped on the corresponding limiting rod until the two first partitions are respectively clamped on the corresponding fixing rings. At this time, the turning drum is completely located in the activation chamber; S2: Then, the staff controls the temperature in the activation chamber at 30°C - 35°C, keeps the air humidity at 85% - 90%, and simultaneously controls the oxygen concentration at 21% - 23% through the temperature control device, humidity control device and oxygen concentration control device in the activation chamber, which can activate polyphenol oxidase and start the oxidation reaction of catechins. React under these conditions for 1 hour. At the same time, start the second motor, drive the rubber block to rotate through the connecting shaft, and make the turning drum rotate intermittently, so as to ensure that the tea leaves in the turning drum can be evenly fermented; S3: The staff members place another set of turning drums and the first partition in the feeding mechanism in advance. At the same time, through the temperature control device, humidity control device and oxygen concentration control device in the fermentation chamber, the temperature in the fermentation chamber is controlled at 28°C - 32°C, the air humidity is maintained at 90% - 95%, and the oxygen concentration is controlled at 25% - 28%. At this time, the best fermentation environment for black tea is achieved, which can accelerate the formation of theaflavins and promote the conversion of aroma precursor substances; S4: After the tea leaves in the previous set of turning drums are activated, first control the rotating device to drive the fermented turning drum to align with the first tank body, and then start the first motor. Through the cooperation of the threaded rod, movable block and movable frame, the turning drum is pushed into the activation chamber. At this time, the turning drum and the first partition in the activation chamber move into the fermentation chamber until several groups of first partitions are all clamped in the corresponding fixed rings. Then start the rotating device, and the rotating device drives the turning drum to rotate to ensure that the tea leaves in the turning drum can be evenly fermented; S5: When the tea leaves in the activation chamber are activated, continue to put another set of turning drums and push the tea leaves in the activation chamber into the fermentation chamber. Repeat this process until nearly 4 hours after the tea leaves initially enter the turning drum in the fermentation chamber. The staff members turn on the temperature control device, humidity control device and oxygen concentration control device in the stabilization chamber in advance, control the temperature in the stabilization chamber at 22°C - 25°C, maintain the air humidity at 80% - 85%, and control the oxygen concentration at 18% - 21%. In this environment, black tea can slow down the enzyme activity, lock the theaflavin / thearubigin ratio, prevent over-oxidation, and make the state of the tea leaves tend to be stable; S5: When the tea leaves in the turning drum in the fermentation chamber are fermented, control the rotating device to drive a set of fermented turning drums to align with the first tank body, and then push the turning drum in the feeding mechanism, push the aligned turning drums in sequence. The turning drums on the feeding mechanism move into the activation chamber, the turning drums in the activation chamber move into the fermentation chamber, and the turning drums in the fermentation chamber move into the stabilization chamber; S6: When the tea leaves in the stabilization chamber are fermented for 1 hour, the state of the tea leaves tends to be stable and will no longer ferment. At this time, the tea leaves in the fermentation chamber and the activation chamber have completed the fermentation at this stage. At this time, just push a new turning drum into the fermentation box. At this time, the turning drum and the corresponding first partition in the stabilization chamber are pushed out, and the turning drum is located outside. Then the staff members first separate the second movable rod, the first movable rod from the limiting rod. At this time, the turning drum falls on the inclined block, and then the staff members remove the inclined block and take out the tea leaves in the turning drum.

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