A device for efficient extraction, separation and purification of tea pigments

Abstract

This invention discloses a high-efficiency extraction and purification device for tea pigments, relating to the field of tea pigment extraction and purification technology. It includes an extraction tank with a centrifuge mechanism at its bottom. The bottom of the centrifuge mechanism is connected to a storage tank via a transmission pipe. A purification mechanism is connected to one side of the storage tank via a transmission pipe. The purification mechanism includes a separation tank with a rotating conversion frame inside. A positioning and connecting component is arranged on the outer side of the conversion frame, including a limiting rod. A resin column is positioned and installed inside the limiting rod. An adsorption docking component, a purification docking component, and an elution docking component are respectively arranged at the top of the separation tank. An activation mechanism is provided on the outer side of the separation tank for activating the resin particles in the resin column. This invention can sequentially complete the adsorption of the solution, impurity rinsing, and tea pigment elution operations, automatically switching the resin column process in an alternating manner. It can also activate the resin particles, facilitating recycling.

Description

Technical Field

[0001] This invention relates to the field of tea pigment extraction and purification technology, and in particular to a device for efficient extraction, separation and purification of tea pigments. Background Technology

[0002] Tea pigments are natural water-soluble pigments extracted from tea leaves, primarily composed of theaflavins, thearubigins, and theabrownins. They possess both excellent coloring properties and physiological activity, and are widely used in functional foods, health foods, and natural pigment additives, with market demand continuously expanding. Currently, the industrial production of tea pigments mainly uses tea leaves or tea residue as raw materials, employing methods such as hot water extraction, ethanol reflux extraction, or ultrasonic-assisted extraction to obtain a crude extract. This extract is then subjected to initial impurity removal through settling, centrifugation, filtration, or alcohol precipitation. Subsequent purification is achieved through macroporous resin adsorption, membrane separation, or extraction processes.

[0003] Existing tea pigment extraction and purification technologies still have many shortcomings: for example, the crude extract contains a large number of water-soluble impurities such as tea polyphenols, polysaccharides, proteins, and caffeine, which directly affect the subsequent separation efficiency and product purity. Conventional impurity removal methods have limited effectiveness and are lengthy processes. In addition, macroporous resin adsorption is currently the mainstream purification method, but in actual production, uneven resin packing, easy agglomeration, and easy channeling and short-circuiting phenomena are common, resulting in insufficient adsorption and serious pigment loss. Furthermore, the resin adsorption, water washing, elution, and regeneration processes are mostly intermittent operations with low automation and poor stability, making it difficult to achieve continuous production. Based on this, this invention proposes a separation and purification device that can efficiently and continuously complete the extraction and purification of tea pigments. During the purification process, the adsorption of the solution, impurity washing, and tea pigment elution are completed sequentially, automatically realizing the process switching of the resin column in an alternating manner. The resin particles can also be activated for easy recycling. Summary of the Invention

[0004] To address the aforementioned technical problems, this invention proposes a separation and purification device that can efficiently and continuously extract and purify tea pigments. During the purification process, the device sequentially performs adsorption of the solution, rinsing of impurities, and elution of tea pigments, automatically switching the resin column in an alternating manner. It can also activate the resin particles for easy recycling.

[0005] The technical solution used in this invention is as follows: a high-efficiency extraction and purification device for tea pigments, comprising an extraction tank, a centrifuge mechanism at the bottom of the extraction tank, a storage tank at the bottom of the centrifuge mechanism via a transmission pipe, a purification mechanism at one side of the storage tank via a transmission pipe, the purification mechanism comprising a separation tank, a conversion frame rotatably mounted inside the separation tank, a positioning and connecting component evenly arranged in a ring on the outer area of ​​the conversion frame, the positioning and connecting component comprising a limiting rod fixed to the conversion frame, a resin column positioned and mounted inside the limiting rod, the resin column being filled with resin particles, a connecting box fixedly mounted at the bottom of the conversion frame, the connecting box and the resin column being connected... The bottom of the separation chamber is connected; the top of the separation chamber is equipped with an adsorption docking device, a purification docking device, and an elution docking device; the resin column is connected to the adsorption docking device, the purification docking device, and the elution docking device in sequence to purify the tea pigment; the bottom of the separation chamber is equipped with three output docking devices for connecting to the connecting chamber to output the filtered solution; an activation mechanism is provided on the outside of the separation chamber for activating the resin particles in the resin column. The activation mechanism includes an activation box, and a moving mechanism is slidably provided at the top of the activation box for transferring the resin column. The bottom of the resin column is provided with a pure water chamber, a dilute acid chamber, and a dilute alkali chamber in sequence.

[0006] As a preferred embodiment, an ultrasonic controller is fixedly installed on the outside of the extraction tank for ultrasonic-assisted extraction; a filter plate is fixedly installed at the bottom inside the extraction tank for filtering impurities; a stirring motor is fixedly installed at the top of the extraction tank, and a stirring shaft is fixedly installed on the output shaft of the stirring motor for stirring the raw materials; and a water inlet control valve for transmitting soaking water is also installed at the top of the extraction tank.

[0007] As a preferred embodiment, the centrifugation mechanism includes a centrifuge chamber connected to the bottom of the leaching tank. A mounting shell is fixedly installed inside the centrifuge chamber, and a centrifuge motor is fixedly installed inside the mounting shell. A centrifuge inner cylinder is rotatably installed inside the centrifuge chamber. The centrifuge inner cylinder is driven by the centrifuge motor, and the solution is centrifuged and filtered in the centrifugation mechanism. A pump body and a control valve are respectively installed at both ends of the first transmission pipe to control the transmission of the solution to the storage tank. A pump body is installed at one end of the second transmission pipe connected to the storage tank, and the end of the second transmission pipe connected to the separation tank is connected to the adsorption docking device to control the transmission of the solution from the storage tank to the separation tank.

[0008] As a preferred embodiment, the adsorption docking component, the impurity removal docking component, and the elution docking component all include a control cylinder 1 fixed to the top of the separation chamber. A docking part 1 is fixedly provided on the telescopic rod of the control cylinder 1, and the docking part 1 can dock and communicate with the top of the resin column. The adsorption docking component also includes a transmission control valve fixed to the top of the separation chamber. The transmission control valve is connected to the end of the transmission pipeline 2. The impurity removal docking component also includes a pure water control valve. The elution docking component also includes an ethanol control valve. The docking part 1 is connected to the transmission control valve, the pure water control valve, and the ethanol control valve through a telescopic pipe.

[0009] As a preferred embodiment, a transposition motor is fixedly installed in the central area of ​​the top of the separation box, and a conversion frame is fixedly installed on the output shaft of the transposition motor, with the bottom end of the conversion frame fixedly connected to the conversion frame; the positioning and communication component includes an online ultraviolet detector installed on the communication box for detecting changes in solution color; a vibration generator is also fixedly installed at the bottom of the conversion frame for vibrating the resin column.

[0010] As a preferred embodiment, the output docking component includes an output valve and a control cylinder two fixedly installed at the bottom of the separation tank. A docking part two is fixedly installed on the telescopic rod of the control cylinder two. The docking part two is connected to the output valve through a telescopic pipe. The docking part two can be docked and connected to the liquid outlet at the bottom of the connecting tank.

[0011] As a preferred embodiment, the activation mechanism includes three rinsing components disposed on the side of the activation chamber. The three rinsing components are respectively connected to the pure water chamber, the dilute acid chamber, and the dilute alkali chamber. Each rinsing component includes a rinsing transmission pipe connected to each chamber. The top end of the rinsing transmission pipe is connected to a rinsing docking part via a flexible tube. The rinsing docking part can be connected to the top end of the resin column. A rinsing control electric cylinder is fixedly disposed at the top end of the activation chamber. The telescopic rod of the rinsing control electric cylinder is fixedly connected to the rinsing docking part to control the telescopic movement of the rinsing docking part.

[0012] As a preferred embodiment, the top of the separation box is provided with a transfer hole in the direction of the activation box, and the moving mechanism transfers the resin column through the transfer hole. The moving mechanism includes a motor and a guide rod fixedly mounted on the activation box, and a lead screw rotatably mounted on the activation box. The lead screw is driven by the motor. A slide block is slidably fitted on the guide rod, and the slide block and the lead screw form a helical pair. A motor is fixedly mounted on the slide block, and a lead screw is rotatably mounted on the slide block. The lead screw is driven by the motor. A slide block is slidably mounted on the slide block, and the slide block and the lead screw form a helical pair. A fixing ring is fixedly mounted on the slide block. Several clamping electric cylinders are fixedly mounted on the circumference of the fixing ring. A clamping seat is fixedly mounted on the telescopic rod of the clamping electric cylinder. The clamping seat is provided with a clamping groove. An end plate is provided at the liquid inlet at the top of the resin column. The end plate is fitted into the clamping groove for fixation.

[0013] The beneficial effects of this invention compared with the prior art are: (1) In this invention, when the resin is transported, the resin column is vibrated by the vibration generator, which can effectively avoid resin particle agglomeration and local blockage, and ensure stable filtration flow rate; (2) In this invention, the absorbance of the output solution can be detected in real time by the online ultraviolet detector. That is, the solution is dark brown before being adsorbed. When it passes through the resin column, the tea pigment is adsorbed, and the solution color will change to light yellow and almost colorless. When the solution is continuously transported, the solution color changes from light color to dark brown again, which indicates that the resin particles are saturated. The online ultraviolet detector feeds the detection signal back to the control system, and then controls the rotation of the conversion frame by the switching motor, and the conversion tree The orientation of the resin column; (3) In this invention, the saturated resin column is transferred to the bottom of the impurity removal docking device. After docking, the pure water control valve is connected to the external pure water transmission device to rinse the resin column, which can remove impurities such as sugar, protein, and tea polyphenols; the rinsed resin column is transferred to the bottom of the elution docking device, and after docking, elution is performed. That is, the ethanol control valve is connected to the external ethanol transmission device to transmit ethanol solution to the resin column, thereby adsorbing the tea pigment and automatically completing each process operation; (4) In this invention, the eluted resin column can be activated to facilitate subsequent recycling. That is, the resin column is rinsed with pure water, dilute acid, and dilute alkali in sequence, and the activated resin column is reused. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall orthographic projection structure of the present invention.

[0015] Figure 2 This is a schematic cross-sectional view of the overall structure of the present invention.

[0016] Figure 3 This is a schematic diagram of the installation structure of the separation box and activation box of the present invention.

[0017] Figure 4 This is a schematic diagram of the internal installation structure of the separation box of the present invention.

[0018] Figure 5 This is a schematic diagram of the cross-sectional structure of the separation box of the present invention.

[0019] Figure 6 This is a schematic diagram of the resin column structure of the present invention.

[0020] Figure 7 This is a schematic diagram of the installation structure of the activation box of the present invention.

[0021] Figure 8 This is a schematic cross-sectional view of the activation box structure of the present invention.

[0022] Figure 9 This is a schematic diagram of the moving mechanism structure of the present invention.

[0023] Figure 10 This is a schematic diagram of the flushing assembly structure of the present invention.

[0024] Reference numerals: 1-Immersion tank; 2-Centrifuge tank; 3-Storage tank; 4-Separation tank; 5-Transfer pipe one; 6-Transfer pipe two; 7-Activation tank; 8-Transfer motor; 9-Control cylinder one; 10-Dating part one; 11-Resin column; 12-Transfer frame; 13-Limit rod; 14-Connecting box; 15-Online ultraviolet detector; 16-Vibration generator; 17-Control cylinder two; 18-Dating part two; 19-Output valve; 20-Motor one; 21-Lead screw one; 22-Guide rod one; 23-Slide one; 24-Motor two; 25-Lead screw two; 26-Slide II; 27-Fixing ring; 28-Mounting electric cylinder; 29-Card holder; 30-Rinsing transmission pipe; 31-Rinsing control electric cylinder; 32-Rinsing docking part; 101-Stirring motor; 102-Stirring shaft; 103-Water inlet control valve; 104-Filter plate; 105-Ultrasonic controller; 201-Centrifuge inner cylinder; 202-Mounting shell; 203-Centrifuge motor; 401-Pure water control valve; 402-Ethanol control valve; 601-Transmission control valve; 701-Pure water chamber; 702-Dilute acid chamber; 703-Dilute alkali chamber; 801-Connecting shaft; 1101-End plate. Detailed Implementation

[0025] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0026] like Figures 1 to 10As shown, a high-efficiency extraction and purification device for tea pigments includes an extraction tank 1. A centrifuge mechanism is installed at the bottom of the extraction tank 1. The bottom of the centrifuge mechanism is connected to a storage tank 3 via a transmission pipe 5. A purification mechanism is connected to one side of the storage tank 3 via a transmission pipe 6. The purification mechanism includes a separation tank 4. A conversion frame 12 is rotatably mounted inside the separation tank 4. Positioning and connecting components are evenly arranged in a ring on the outer area of ​​the conversion frame 12. The positioning and connecting components include a limiting rod 13 fixed to the conversion frame 12. A resin column 11 is positioned and installed inside the limiting rod 13. The resin column 11 is filled with resin particles. A connecting box 14 is fixedly installed at the bottom of the conversion frame 12. The connecting box 14 connects to the bottom of the resin column 11. The separation chamber 4 is connected to the adsorption docking unit, the impurity removal docking unit, and the elution docking unit at the top. The resin column 11 is connected to the adsorption docking unit, the impurity removal docking unit, and the elution docking unit in sequence to purify the tea pigment. The bottom of the separation chamber 4 is provided with three output docking units for connecting to the connecting chamber 14 to output the filtered solution. An activation mechanism is provided on the outside of the separation chamber 4 for activating the resin particles in the resin column 11. The activation mechanism includes an activation box 7. A moving mechanism is slidably provided at the top of the activation box 7 for transferring the resin column 11. The bottom of the resin column 11 is provided with a pure water chamber 701, a dilute acid chamber 702, and a dilute alkali chamber 703 in sequence.

[0027] An ultrasonic controller 105 is fixedly installed on the outside of the extraction tank 1 for ultrasonic-assisted extraction; a filter plate 104 is fixedly installed at the bottom inside the extraction tank 1 for filtering impurities; a stirring motor 101 is fixedly installed at the top of the extraction tank 1, and a stirring shaft 102 is fixedly installed on the output shaft of the stirring motor 101 for stirring the raw materials; an inlet control valve 103 for transmitting soaking water is also installed at the top of the extraction tank 1; the centrifugation mechanism includes a centrifuge box 2 connected to the bottom of the extraction tank 1, a mounting shell 202 is fixedly installed inside the centrifuge box 2, a centrifuge motor 203 is fixedly installed inside the mounting shell 202, and a centrifuge inner cylinder 201 is rotatably installed inside the centrifuge box 2. The centrifuge inner cylinder 201 is driven by the centrifuge motor 203, and the solution undergoes centrifugal filtration treatment in the centrifugation mechanism; a pump body and a control valve are respectively installed at both ends of the transmission pipeline 5 to control the transmission of the solution to the storage tank. In storage tank 3, a pump body is installed at one end of the transmission pipeline 2 6 connected to storage tank 3, and the other end of the transmission pipeline 2 6 connected to separation tank 4 is connected to the adsorption docking component to control the transmission of the solution from storage tank 3 to separation tank 4. The adsorption docking component, the impurity removal docking component, and the elution docking component all include a control electric cylinder 1 9 fixed to the top of separation tank 4. A docking part 1 10 is fixedly installed on the telescopic rod of the control electric cylinder 1 9, and the docking part 1 10 can be docked and connected to the top of resin column 11. The adsorption docking component also includes a transmission control valve 601 fixed to the top of separation tank 4. The transmission control valve 601 is connected to the end of transmission pipeline 2 6. The impurity removal docking component also includes a pure water control valve 401, and the elution docking component also includes an ethanol control valve 402. The docking part 1 10 is connected to the transmission control valve 601, the pure water control valve 401, and the ethanol control valve 402 through telescopic pipes.

[0028] A shift motor 8 is fixedly installed in the center of the top of the separation tank 4. A conversion frame 12 is fixedly installed on the output shaft of the shift motor 8. The bottom end of the conversion frame 12 is fixedly connected to the conversion frame 12. The positioning and communication assembly includes an online ultraviolet detector 15 installed on the communication tank 14 for detecting changes in solution color. A vibration generator 16 is also fixedly installed at the bottom of the conversion frame 12 for vibrating the resin column 11. The output docking component includes an output valve 19 and a control cylinder 17 fixedly installed at the bottom of the separation tank 4. A docking part 18 is fixedly installed on the telescopic rod of the control cylinder 17. The docking part 18 is connected to the output valve 19 through a telescopic pipe. The docking part 18 can be docked and communicated with the liquid outlet at the bottom of the communication tank 14.

[0029] The activation mechanism includes three rinsing components located on the side of the activation tank 7. These three rinsing components are respectively connected to the pure water chamber 701, the dilute acid chamber 702, and the dilute alkali chamber 703. Each rinsing component includes a rinsing transmission pipe 30 connecting to each chamber. The top of the rinsing transmission pipe 30 is connected to a rinsing docking part 32 via a flexible tube. The rinsing docking part 32 can dock with the top of the resin column 11. A rinsing control cylinder 31 is fixedly installed at the top of the activation tank 7. The telescopic rod of the rinsing control cylinder 31 is fixedly connected to the rinsing docking part 32 to control the telescopic movement of the rinsing docking part 32. A transfer hole is opened at the top of the separation tank 4 in the direction of docking with the activation tank 7. The moving mechanism transfers the resin column 11 through the transfer hole. The moving mechanism includes a motor 20 and a guide rod 22 fixedly installed on the activation tank 7. A lead screw 21 is rotatably mounted on the activation box 7. The lead screw 21 is driven by a motor 20. A slide block 23 is slidably fitted on the guide rod 22. The slide block 23 and the lead screw 21 form a helical pair. A motor 24 is fixedly mounted on the slide block 23. A lead screw 25 is rotatably mounted on the slide block 23. The lead screw 25 is driven by the motor 24. A slide block 26 is slidably mounted on the slide block 23. The slide block 26 and the lead screw 25 form a helical pair. A fixing ring 27 is fixedly mounted on the slide block 26. Several clamping electric cylinders 28 are fixedly mounted on the circumference of the fixing ring 27. A clamping seat 29 is fixedly mounted on the telescopic rod of the clamping electric cylinder 28. The clamping seat 29 is provided with a clamping groove. An end plate 1101 is provided at the liquid inlet at the top of the resin column 11. The end plate 1101 is fitted in the clamping groove for fixation.

[0030] Operating principle: Tea residue is extracted with hot water in extraction tank 1 at a temperature controlled between 80 and 90 degrees Celsius, and the extraction is repeated two to three times. Ultrasonic extraction is performed by controlling the ultrasonic controller 105. The stirring motor 101 controls the rotation of the stirring shaft 102 to stir the solution. The filter plate 104 filters the tea residue. The control valve at the bottom of extraction tank 1 opens the discharge port, allowing the solution to be transferred to centrifuge tank 2 for centrifugal impurity removal. Specifically, the centrifuge inner cylinder 201 is driven to rotate by centrifuge motor 203 to centrifuge and filter the solution, which is then transferred to storage tank 3 through transmission pipe 5 for storage. In storage tank 3, the pH of the solution is adjusted to weakly acidic to neutral to prevent pigment degradation.

[0031] Further, the solution is transferred to the separation chamber 4 via the second transmission pipe 6. The resin column 11 is positioned sequentially below the adsorption docking unit, the impurity removal docking unit, and the elution docking unit. The docking part 10 is moved by the first control cylinder 9, aligning with the inlet hole at the top of the resin column 11. The solution is then transferred into the resin column 11, where the resin particles adsorb the tea pigments. The second control cylinder 17 aligns the second docking part 18 with the outlet hole at the bottom of the connecting box 14. The solution is transferred from the top to the bottom of the resin column 11, flows through the connecting box 14, and finally reaches the second docking part 18 and the output valve 19, achieving solution output. During transfer, the vibration generator 16 operates to vibrate the resin column 11, effectively preventing resin particle agglomeration and localized blockage, ensuring the filtration flow... The online UV detector 15 can detect the absorbance of the output solution in real time. That is, the solution is dark brown before being adsorbed. When it passes through the resin column 11, the tea pigment is adsorbed and the solution color will change to light yellow and then to almost colorless. When the solution continues to be transported, the solution color changes from light to dark brown again, which means that the resin particles are saturated. The online UV detector 15 feeds the detection signal back to the control system, which then controls the rotation of the conversion frame 12 through the shift motor 8 to change the position of the resin column 11. Adsorption continues through the resin column 11 in other positions. When the position of the resin column 11 is changed, the liquid is stopped and the control cylinder 19 controls the docking part 10 to disengage from the top of the resin column 11, and the control cylinder 2 17 controls the docking part 2 18 to disengage from the bottom of the resin column 11.

[0032] Further, the saturated resin column 11 is moved to the bottom of the impurity removal docking unit. After docking, the pure water control valve 401, connected to an external pure water transfer device, rinses the resin column 11 to remove impurities such as sugar, protein, and tea polyphenols. If the solution color changes from pale yellow to colorless, the impurity rinsing is considered complete, and the system issues a stop rinsing command. Then, the rinsed resin column 11 is moved to the bottom of the elution docking unit. After docking, elution is performed, i.e., the ethanol control valve 402, connected to an external ethanol transfer device, transfers ethanol solution into the resin column 11 to adsorb tea pigments. In the early stage, the solution changes from colorless to dark brown. In the later stage, the solution changes from dark brown to light yellow and then to colorless, indicating that elution is complete. The system issues a stop elution command, and the mixed solution of ethanol and tea pigments is transferred to a collection container for subsequent separation.

[0033] After elution, the resin column 11 can be activated for subsequent recycling. Specifically, the resin column 11 is moved to a position below the transfer hole at the top of the separation chamber 4. Motor 20 drives screw 21 to rotate, moving slide 23 above the transfer hole. Motor 24 drives screw 25 to rotate, moving slide 26 and extending the fixing ring 27 into the separation chamber 4, with the fixing ring 27 located outside the liquid inlet of the resin column 11. A clamping cylinder 28 controls the movement of a clamping seat 29, whose groove engages with end plate 1101 to fix the resin column 11. The resin column 11 is then lifted and removed from the separation chamber 4. The resin column 11 is then transferred inside the activation chamber 7, first rinsed with pure water from the pure water chamber 701. This is achieved by controlling the movement of the rinsing docking part 32 via the rinsing control cylinder 31. The rinsing docking part 32 then connects with the resin column... The top inlet hole of column 11 is connected to the flushing transfer pipe 30 to transfer pure water, which is then released through the flushing docking part 32. After flushing, dilute hydrochloric acid in the dilute acid chamber 702 is used to flush and remove stubborn impurities such as heavy metals and proteins. Then, dilute sodium hydroxide in the dilute alkali chamber 703 is used to flush and remove fat-soluble and pigment residues. Finally, pure water is used to flush and complete the activation treatment. The activated resin column 11 is then transferred and installed back into the separation box 4. It should be noted that the alternation of resin columns 11 can be determined according to the amount of solution being transferred. For small-batch operations, only one or two resin columns 11 in the centrifuge box are needed, and the remaining resin columns 11 can be left idle. If the solution volume is sufficient for adsorption using only one resin column 11, then only one resin column 11 needs to be swapped to complete the adsorption, flushing and impurity removal, elution and activation treatment in sequence.

[0034] It should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A highly efficient extraction and purification device for tea pigments, comprising an extraction tank (1), a centrifuge mechanism at the bottom of the extraction tank (1), and a storage tank (3) connected to the bottom of the centrifuge mechanism via a transmission pipe (5), characterized in that: One side of the storage box (3) is connected to a purification mechanism via a transmission pipe (6). The purification mechanism includes a separation box (4). A conversion frame (12) is rotatably installed inside the separation box (4). Positioning and connecting components are evenly arranged in a ring on the outer area of ​​the conversion frame (12). The positioning and connecting components include a limiting rod (13) fixed on the conversion frame (12). A resin column (11) is positioned and installed inside the limiting rod (13). The resin column (11) is filled with resin particles. A connecting box (14) is fixedly installed at the bottom of the conversion frame (12). The connecting box (14) is connected to the bottom of the resin column (11). An adsorption docking component, a purification docking component, and a washing component are respectively arranged at the top of the separation box (4). Debonding connector; the resin column (11) is connected in sequence to the adsorption connector, the impurity removal connector and the elution connector for the purification of tea pigment; the bottom of the separation box (4) is provided with three output connectors for connecting to the connecting box (14) to output the filtered solution; the outside of the separation box (4) is provided with an activation mechanism for activating the resin particles in the resin column (11). The activation mechanism includes an activation box (7). The top of the activation box (7) is slidably provided with a moving mechanism for transferring the resin column (11). The bottom of the resin column (11) is provided with a pure water chamber (701), a dilute acid chamber (702) and a dilute alkali chamber (703) in sequence.

2. The device for efficient extraction, separation and purification of tea pigments according to claim 1, characterized in that: An ultrasonic controller (105) is fixedly installed on the outside of the extraction tank (1) for ultrasonic-assisted extraction; a filter plate (104) is fixedly installed at the bottom inside the extraction tank (1) for filtering impurities; a stirring motor (101) is fixedly installed at the top of the extraction tank (1), and a stirring shaft (102) is fixedly installed on the output shaft of the stirring motor (101) for stirring the raw materials; a water inlet control valve (103) for transmitting soaking water is also installed at the top of the extraction tank (1).

3. The device for efficient extraction, separation and purification of tea pigments according to claim 1, characterized in that: The centrifugation mechanism includes a centrifuge box (2) connected to the bottom of the leaching box (1). A mounting shell (202) is fixedly installed inside the centrifuge box (2). A centrifuge motor (203) is fixedly installed inside the mounting shell (202). A centrifuge inner cylinder (201) is rotatably installed inside the centrifuge box (2). The centrifuge inner cylinder (201) is driven by the centrifuge motor (203). The solution is centrifuged and filtered in the centrifugation mechanism. A pump body and a control valve are respectively installed at both ends of the first transmission pipe (5) to control the transmission of the solution to the storage box (3). A pump body is installed at one end of the second transmission pipe (6) connected to the storage box (3). The end of the second transmission pipe (6) connected to the separation box (4) is connected to the adsorption docking device to control the transmission of the solution from the storage box (3) to the separation box (4).

4. The device for efficient extraction, separation and purification of tea pigments according to claim 1, characterized in that: The adsorption docking device, the impurity removal docking device, and the elution docking device all include a control electric cylinder (9) fixed to the top of the separation box (4). A docking part (10) is fixedly provided on the telescopic rod of the control electric cylinder (9). The docking part (10) can be docked and connected to the top of the resin column (11). The adsorption docking device also includes a transmission control valve (601) fixed to the top of the separation box (4). The transmission control valve (601) is connected to the end of the transmission pipe (6). The impurity removal docking device also includes a pure water control valve (401). The elution docking device also includes an ethanol control valve (402). The docking part (10) is connected to the transmission control valve (601), the pure water control valve (401), and the ethanol control valve (402) through a telescopic pipe.

5. The device for efficient extraction, separation and purification of tea pigments according to claim 1, characterized in that: A shift motor (8) is fixedly installed in the center area of ​​the top of the separation box (4), and a conversion frame (12) is fixedly installed on the output shaft of the shift motor (8). The bottom end of the conversion frame (12) is fixedly connected to the conversion frame (12). The positioning and communication component includes an online ultraviolet detector (15) installed on the communication box (14) for detecting changes in solution color. A vibration generator (16) is also fixedly installed at the bottom of the conversion frame (12) for vibrating the resin column (11).

6. The device for efficient extraction, separation and purification of tea pigments according to claim 1, characterized in that: The output docking component includes an output valve (19) and a control electric cylinder (17) fixedly installed at the bottom of the separation box (4). A docking part (18) is fixedly installed on the telescopic rod of the control electric cylinder (17). The docking part (18) and the output valve (19) are connected by a telescopic pipe. The docking part (18) can be docked and connected to the liquid outlet at the bottom of the connecting box (14).

7. The device for efficient extraction, separation and purification of tea pigments according to claim 1, characterized in that: The activation mechanism includes three rinsing components arranged on the side of the activation box (7). The three rinsing components are respectively connected to the pure water chamber (701), the dilute acid chamber (702) and the dilute alkali chamber (703). The rinsing components include rinsing transmission pipes (30) connected to each chamber. The top end of the rinsing transmission pipe (30) is connected to a rinsing docking part (32) through a flexible tube. The rinsing docking part (32) can be connected to the top end of the resin column (11). A rinsing control electric cylinder (31) is fixedly installed at the top end of the activation box (7). The telescopic rod of the rinsing control electric cylinder (31) is fixedly connected to the rinsing docking part (32) to control the telescopic movement of the rinsing docking part (32).

8. The device for efficient extraction, separation and purification of tea pigments according to claim 1, characterized in that: The top of the separation box (4) is provided with a transfer hole at the position where it connects to the activation box (7). The moving mechanism transfers the resin column (11) through the transfer hole. The moving mechanism includes a motor (20) and a guide rod (22) fixedly mounted on the activation box (7), and a lead screw (21) rotatably mounted on the activation box (7). The lead screw (21) is driven by the motor (20). A slide block (23) is slidably fitted on the guide rod (22). The slide block (23) and the lead screw (21) form a helical pair. A motor (24) is fixedly mounted on the slide block (23), and a rotatably mounted lead screw (21) is rotatably fitted on the guide rod (22). Screw 2 (25) is driven by motor 2 (24). Slide 2 (26) is slidably installed on slide 1 (23). Slide 2 (26) and screw 2 (25) form a screw pair. Fixing ring (27) is fixedly installed on slide 2 (26). Several clamping electric cylinders (28) are fixedly installed on the circumference of fixing ring (27). Clamping seat (29) is fixedly installed on the telescopic rod of clamping electric cylinder (28). Clamping seat (29) is provided with a clamping groove. End plate (1101) is provided at the liquid inlet hole at the top of resin column (11). End plate (1101) is fitted in the clamping groove for fixation.

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