High-efficiency extraction device and method for liquid flavones in glycyrrhiza alcohol extraction paste

Abstract

The present application relates to the technical field of chemical pharmacy, in particular to a high-efficiency extraction device and method for liquid flavonoids in glycyrrhiza extract, wherein the method comprises the following steps: S1: adding glycyrrhiza extract material into a mixing tank, and heating the glycyrrhiza extract material in the mixing tank; S2: continuously stirring the material in the tank; S3: during the stirring process, automatically adjusting the stirring intensity of the material according to the viscosity of the material, and adding a solvent for diluting the material to the material in the mixing tank, while automatically adjusting the solvent addition amount according to the viscosity of the material in the mixing tank; S4: maintaining stirring and heating for a preset time, so that the flavonoids are fully dissolved and a uniform liquid is formed; and S5: after the mixing is completed, the uniform liquid in the mixing tank is discharged. According to the viscosity of the material, the stirring intensity of the material and the solvent addition amount are automatically adjusted when the glycyrrhiza extract material is stirred, so that the uniformity of the material heating and stirring is improved, and the residue of the material in the mixing tank is reduced.

Description

Technical Field

[0001] This invention relates to the field of chemical pharmaceutical technology, specifically to a device and method for efficient extraction of liquid flavonoids from glycyrrhizin extract. Background Technology

[0002] In the extraction process of liquid flavonoids from licorice alcohol extract, the dilution and pretreatment of the extract are the primary steps determining the subsequent extraction efficiency. Licorice alcohol extract itself is a high-viscosity, semi-fluid material rich in solids. It needs to be thoroughly mixed with the extraction solvent (such as ethanol solution or aqueous two-phase system) and heated to a suitable temperature to effectively dissolve flavonoids from the extract matrix, providing a uniform feed solution for subsequent countercurrent extraction, resin adsorption, or crystallization separation processes.

[0003] Currently, in the dilution and pretreatment process of alcohol extracts, the most common mixing equipment is a horizontal or vertical stirred tank with a heating jacket. This equipment typically uses an independent solvent filling port on the top or side of the tank, pumping the solvent into the tank through pipelines, and then relying on the rotation of the stirring blades to gradually mix the solvent with the bulk material. Regarding the heating method, most equipment uses an external jacket to indirectly heat the tank by introducing steam or heat transfer oil, and uses a temperature sensor to control the flow rate of the heat transfer medium to achieve constant temperature operation.

[0004] However, when the existing mixing equipment is used for the pretreatment of glycyrrhizin extract, the stirring intensity and solvent addition are fixed parameters that are preset and cannot be dynamically adjusted according to real-time changes in material viscosity. Because the initial viscosity of glycyrrhizin extract is extremely high and varies between batches, stirring with fixed parameters cannot provide sufficient shear force to quickly break up the extract and disperse the solvent during the viscosity peak, resulting in low mixing efficiency and prolonged mixing time. Furthermore, as the material gradually dilutes and the viscosity decreases, continuous strong stirring leads to energy waste and excessive shearing, which may affect the stability of the flavonoid active components. Therefore, it is necessary to propose a high-efficiency extraction device and method for liquid flavonoids from glycyrrhizin extract to solve the above problems. Summary of the Invention

[0005] To address the above problems, this invention provides a highly efficient extraction device and method for liquid flavonoids from licorice alcohol extract.

[0006] To achieve the above objectives, the technical solution of the present invention is as follows: A method for efficient extraction of liquid flavonoids from licorice alcohol extract, comprising the following steps: S1: Add the glycyrrhizin extract to the mixing tank and introduce a heating medium into the heating element on the mixing tank to heat the glycyrrhizin extract in the mixing tank.

[0007] S2: The stirring component is driven by the drive component inside the mixing tank to continuously stir the material inside the tank.

[0008] S3: During the mixing process, the stirring adjustment component in the mixing tank automatically adjusts the stirring intensity of the material according to the material viscosity, and adds solvent to the material in the mixing tank through the solvent injection component on the mixing tank to dilute the material. At the same time, the solvent injection amount adjustment component in the mixing tank automatically adjusts the solvent injection amount according to the material viscosity in the mixing tank.

[0009] S4: Maintain stirring and heating for the preset time to allow flavonoids to fully dissolve and form a homogeneous liquid.

[0010] S5: After mixing is complete, discharge the homogeneous liquid from the mixing tank.

[0011] The technical principles of the above solution are as follows: This invention utilizes changes in material viscosity as a driving signal, sensing viscosity levels in real time through the material resistance encountered by the rotating stirring assembly. When viscosity increases, the stirring resistance increases accordingly. This resistance triggers two sets of adjustment actions simultaneously via a mechanical transmission chain: one set increases the extension range of the stirring rod to enhance shearing, and the other set increases the opening degree of the solvent delivery channel to increase the injection volume. When viscosity decreases, the stirring resistance decreases, and the stirring intensity and solvent injection volume decrease synchronously. The entire adjustment process requires no external sensors or control; it relies entirely on the mechanical balance between material resistance and the reset element to achieve adaptive and coordinated adjustment of stirring intensity and solvent injection volume according to viscosity changes.

[0012] The above approach has the following beneficial effects: 1. This solution achieves adaptive and coordinated adjustment of stirring intensity and solvent addition amount according to material viscosity. In the high viscosity stage, it automatically enhances stirring and provides sufficient solvent, which can quickly break up the paste and disperse the solvent, significantly shortening the mixing time and improving dilution efficiency. In the low viscosity stage, it automatically reduces stirring intensity and reduces solvent supply, which not only avoids excessive shearing that damages the flavonoid active ingredients, but also saves stirring energy consumption and solvent consumption, so that the entire pretreatment process is always in the optimal working condition that matches the actual state of the material.

[0013] 2. This solution requires no external sensors, controllers, or actuators; it achieves synchronous and automatic adjustment of stirring intensity and solvent dosage entirely through a purely mechanical linkage mechanism. Material resistance is directly transmitted as a drive signal to the adjustment components, resulting in immediate and lag-free response. It is unaffected by electrical faults, signal interference, or program errors, ensuring reliability and stability.

[0014] 3. This solution achieves adaptive stirring and solvent supply, while continuously scraping off the adhering material by the scraper close to the tank wall during the high viscosity stage. This effectively prevents the paste from scorching and scaling due to high temperature retention, ensuring heat transfer efficiency and product quality. During the low viscosity stage, the fan blades drive the material to form an overall convection circulation, so that the heat of the tank wall is quickly distributed to the entire tank with the flow of material, eliminating the temperature gradient and promoting the uniform and full dissolution of flavonoids.

[0015] Furthermore, in step S1, the temperature at which the glycyrrhizin extract material in the mixing tank is heated is 40-60℃.

[0016] Beneficial effects: This temperature range can effectively reduce the viscosity of glycyrrhizin extract, improve its fluidity, and promote the dissolution of flavonoids from the extract matrix.

[0017] Furthermore, the stirring assembly includes a rotating shaft that is rotatably fitted to the top wall of the mixing tank, stirring rods that are symmetrically hinged to the side wall of the rotating shaft, and scraper rods that are hinged to the ends of the stirring rods away from the rotating shaft; a cavity is opened inside the rotating shaft, a feeding pipe is fixedly connected to the top of the mixing tank, and a discharge pipe is fixedly connected to the bottom of the mixing tank.

[0018] Beneficial effects: The hinged structure of the stirring rod and the scraper allows the stirring radius to change dynamically with the angle of the stirring rod, enabling flexible adjustment of the stirring intensity; the scraper scrapes off the adhering material on the wall at high viscosity, preventing scorching.

[0019] Furthermore, the drive assembly includes a controller and a bracket fixedly connected to the top of the mixing tank; a drive component is fixedly connected to the top of the bracket, and the controller is used to control the rotation of the output shaft of the drive component; a driven gear is coaxially fixedly connected to the shaft; the output shaft of the drive component passes through the bracket and is coaxially fixedly connected to the drive gear, and the drive gear and the driven gear mesh.

[0020] Beneficial effects: The gear meshing transmission structure is compact and the transmission ratio is precise, which can ensure that the rotating shaft obtains a stable and reliable rotational driving force, adapt to the high torque requirements when stirring high viscosity materials, and at the same time, it is easy to adjust the stirring speed according to process needs.

[0021] Furthermore, the solvent filling assembly includes an "L"-shaped retainer fixedly connected to the top of the support, with a liquid injection tube fixedly connected to the horizontal end of the retainer. The liquid injection tube and the rotating shaft are rotatably engaged through a rotary joint, and the liquid injection tube and the cavity are connected through the rotary joint.

[0022] Beneficial effects: The rotary joint achieves dynamic sealing and connection between the fixed pipeline and the rotating shaft, ensuring that the solvent can be stably delivered into the cavity even when the shaft is rotating continuously.

[0023] Furthermore, the stirring and regulating assembly includes a sliding sleeve fitted and slidably fitted onto a rotating shaft. Connecting rods are symmetrically hinged to the sidewalls of the sliding sleeve, with the ends of the connecting rods away from the sliding sleeve hinged to their adjacent stirring rods. A tension spring is fitted onto the rotating shaft, with one end of the tension spring fixedly connected to the sidewall of the rotating shaft and the other end fixedly connected to the top of the sliding sleeve. Conveying pipes are symmetrically fixedly connected to the sidewalls of the rotating shaft, and each conveying pipe communicates with a cavity. A rotating tube is fitted around each conveying pipe, with a fan blade fixedly connected to the end of each rotating tube away from the conveying pipe. A torsion spring is fixedly connected to the inner sidewall of each rotating tube, with the other end of each torsion spring fixedly connected to its adjacent conveying tube. A steel wire rope is wound around each rotating tube, with the end of the steel wire rope away from the rotating tube fixedly connected to the sliding sleeve, and adjacent steel wire ropes are wound in opposite directions.

[0024] Beneficial effects: By sensing changes in material resistance through the fan blades, the resistance signal is converted into changes in the expansion angle of the stirring rod via a purely mechanical transmission chain of wire rope-sliding sleeve-connecting rod, thereby realizing automatic adjustment of stirring intensity according to viscosity, with immediate response and no need for external control.

[0025] Furthermore, the solvent dispensing volume adjustment component includes a dispensing hole on the side wall of the dispensing pipe, and an injection hole adapted to the dispensing hole is opened on the side wall of the rotating pipe.

[0026] Beneficial effects: By rotating the tube relative to the delivery tube, the overlapping area of ​​the injection hole and the delivery hole changes, thereby controlling the solvent flow cross section and directly converting the viscosity signal into continuous adjustment of the injection amount.

[0027] Furthermore, the heating assembly includes a heating chamber located within the side wall of the mixing tank; an outlet pipe is fixedly connected to the top of the mixing tank, and the outlet pipe communicates with the heating chamber; an inlet pipe is fixedly connected to the side wall of the mixing tank, and the inlet pipe communicates with the heating chamber.

[0028] Beneficial effects: The heating chamber is arranged around the tank body, with a large heating area and uniform heat transfer. The heat medium flows through the entire chamber from bottom to top, which can provide a stable and sufficient heat supply to the material inside the tank.

[0029] Furthermore, baffles are fixedly connected to the bottom of each fan blade.

[0030] Beneficial effects: The baffle increases the impact area of ​​the material on the fan blades during rotation, making the fan blades more sensitive to changes in viscosity and generating sufficient driving torque even under low viscosity conditions.

[0031] Furthermore, the orientation of the injection hole is opposite to the rotation direction of the shaft.

[0032] Beneficial effects: During rotation, the injection hole forms an opening opposite to the material flow direction. The dynamic pressure generated by the material rotation seals the injection hole, preventing high-viscosity materials from flowing back into the delivery pipe and rotating pipe when the solvent is not pressurized, thus avoiding pipe blockage and contamination. Attached Figure Description

[0033] Figure 1 This is a side cross-sectional axonometric view of the efficient liquid flavonoid extraction device for licorice alcohol extract of the present invention.

[0034] Figure 2 for Figure 1 Enlarged view of section A.

[0035] Figure 3 This is a frontal sectional axonometric view of the conveying pipe and rotating pipe in the high-efficiency extraction device for liquid flavonoids in licorice alcohol extract of the present invention.

[0036] Figure 4 This is a side view of the fan blades in the high-efficiency extraction device for liquid flavonoids in licorice alcohol extract of the present invention.

[0037] Figure 5 This is a side sectional view of the conveying pipe and rotating pipe in the high-efficiency extraction device for liquid flavonoids in licorice alcohol extract of the present invention.

[0038] The reference numerals in the accompanying drawings of the instruction manual include: 1. Mixing tank; 2. Rotating shaft; 3. Baffle plate; 4. Stirring rod; 5. Scraper; 6. Support; 7. Motor; 8. Driven gear; 9. Drive gear; 10. Cage; 11. Injection pipe; 12. Rotary joint; 13. Sliding sleeve; 14. Connecting rod; 15. Tension spring; 16. Conveying pipe; 17. Rotating pipe; 18. Fan blade; 19. Torsion spring; 20. Wire rope; 21. Conveying hole; 22. Injection hole; 23. Discharge pipe; 24. Inlet pipe; 25. Feeding pipe; 26. Discharge pipe. Detailed Implementation

[0039] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. 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.

[0040] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0041] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0042] The following detailed description illustrates the specific implementation method: Implementation, for example, attached Figure 1 As shown: Includes the following steps: S1: Add the glycyrrhizin extract to the mixing tank 1 and introduce a heating medium into the heating component on the mixing tank 1. In this embodiment, the heating medium is hot oil to heat the glycyrrhizin extract in the mixing tank 1. In this embodiment, the heating temperature is 40°C.

[0043] S2: The stirring component is driven by the drive component in the mixing tank 1 to continuously stir the material in the tank.

[0044] S3: During the mixing process, the stirring adjustment component in mixing tank 1 automatically adjusts the stirring intensity of the material according to the material viscosity, and adds solvent to the material in mixing tank 1 through the solvent injection component on mixing tank 1 to dilute the material. At the same time, the solvent injection amount adjustment component in mixing tank 1 automatically adjusts the solvent injection amount according to the material viscosity in mixing tank 1.

[0045] S4: Maintain stirring and heating for the preset time to allow flavonoids to fully dissolve and form a homogeneous liquid.

[0046] S5: After mixing is complete, discharge the homogeneous liquid from mixing tank 1.

[0047] like Figure 1 As shown, specifically, the heating assembly includes a heating chamber located within the side wall of the mixing tank 1.

[0048] A liquid outlet pipe 23 is fixedly welded to the top of the mixing tank 1, and the liquid outlet pipe 23 is connected to the heating chamber. A liquid inlet pipe 24 is fixedly welded to the side wall of the mixing tank 1, and the liquid inlet pipe 24 is connected to the heating chamber.

[0049] like Figure 2 As shown, specifically, the stirring assembly includes a rotating shaft 2 that is rotatably fitted to the top wall of the mixing tank 1. Stirring rods 4 are symmetrically hinged to the side wall of the rotating shaft 2, and scraper rods 5 are hinged to the end of the stirring rods 4 away from the rotating shaft 2. A cavity is opened inside the rotating shaft 2. A feeding pipe 25 is fixedly connected to the top of the mixing tank 1, and a discharge pipe 26 is fixedly connected to the bottom of the mixing tank 1.

[0050] like Figure 1 As shown, specifically, the drive assembly includes a controller and a bracket 6 that is fixedly connected to the top of the mixing tank 1 by bolts; a motor 7 is fixedly connected to the top of the bracket 6 by bolts, and the controller is used to control the rotation of the output shaft of the motor 7; a driven gear 8 is fixedly connected to the rotating shaft 2 by bolts on the shaft; the output shaft of the motor 7 passes through the bracket 6 and is fixedly connected to the drive gear 9 by bolts on the shaft, and the drive gear 9 and the driven gear 8 mesh.

[0051] Combination Figure 1 As shown, after the licorice extract is added to the mixing tank 1 through the feeding pipe 25, hot oil is introduced into the liquid inlet pipe 24. The hot oil preheats the side wall of the mixing tank 1 through the heating chamber, raising the temperature inside the tank to 40°C. Then, the motor 7 is started, and the output shaft of the motor 7 drives the drive gear 9 to rotate. Through meshing transmission, the driven gear 8 and the rotating shaft 2 are driven to rotate, which in turn drives the stirring rod 4 to stir the material in the mixing tank 1.

[0052] like Figure 1 As shown, specifically, the solvent filling assembly includes an "L"-shaped retainer 10 that is fixedly connected to the top of the bracket 6 by bolts. A liquid injection tube 11 is fixedly welded to the horizontal end of the retainer 10. The liquid injection tube 11 and the rotating shaft 2 are rotatably engaged through a rotary joint 12. The liquid injection tube 11 and the cavity are connected through the rotary joint 12.

[0053] like Figure 2 , Figure 4 and Figure 5 As shown, specifically, the stirring and adjusting assembly includes a sliding sleeve 13 that is sleeved and slidably fitted on the rotating shaft 2. Connecting rods 14 are symmetrically hinged on the side wall of the sliding sleeve 13, and the ends of the connecting rods 14 away from the sliding sleeve 13 are all hinged to the adjacent stirring rods 4.

[0054] A tension spring 15 is fitted on the rotating shaft 2. One end of the tension spring 15 is fixedly connected to the side wall of the rotating shaft 2 by screws, and the other end of the tension spring 15 is fixedly connected to the top of the sliding sleeve 13 by screws.

[0055] A conveying pipe 16 is symmetrically fixedly welded to the side wall of the rotating shaft 2, and the conveying pipe 16 is connected to the cavity. A rotating pipe 17 is sleeved on the outside of the conveying pipe 16. A fan blade 18 is fixedly welded to the end of the rotating pipe 17 away from the conveying pipe 16. A baffle plate 3 is integrally formed at the bottom of the fan blade 18.

[0056] Each rotating tube 17 has a torsion spring 19 fixedly connected to its inner wall by screws, and the other end of each torsion spring 19 is fixedly connected to its adjacent conveying tube 16 by screws. Each rotating tube 17 is wound with a steel wire rope 20, and the end of each steel wire rope 20 away from the rotating tube 17 is fixedly connected to the sliding sleeve 13 by screws. The winding directions of adjacent steel wire ropes 20 are opposite.

[0057] like Figure 3As shown, specifically, the solvent dispensing adjustment assembly includes a dispensing hole 21 on the side wall of the dispensing pipe 16, and an injection hole 22 on the side wall of the rotating pipe 17 that matches the dispensing hole 21. The orientation of the injection hole 22 is opposite to the rotation direction of the rotating shaft 2.

[0058] Combined with the diagram Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, before the motor 7 starts, since the sum of the torques of the two torsion springs 19 is greater than the tension of the tension spring 15, the torsion springs 19 drive the rotating tube 17 to rotate counterclockwise on the conveying tube 16, thereby tightening the wire rope 20. The wire rope 20 then pulls the sliding sleeve 13 to move downward on the rotating shaft 2. The downward movement of the sliding sleeve 13 drives the connecting rod 14 to move the stirring rod 4 to retract. At this time, the scraper 5 does not contact the inner wall of the mixing tank 1. At the same time, the sliding sleeve 13 pulls the tension spring 15 to stretch it. At this time, the fan blade 18 is in an inclined state.

[0059] The injection hole 22 and the delivery hole 21 are misaligned, and the solvent flow section is completely closed.

[0060] In the initial stage of mixing, the viscosity of the material in the tank is high. The rotating shaft 2 drives the stirring rod 4 and scraper 5 to rotate in the material. At the same time, the rotating shaft 2 drives the fan blade 18 to rotate. At this time, under the action of the baffle plate 3, the high viscosity material impacts the baffle plate 3. The impact force is large, which in turn drives the fan blade 18 to deflect clockwise. At this time, the rotating tube 17 deflects against the torque of the torsion spring 19, causing the torsion spring 19 to tighten. When the rotating tube 17 rotates, the steel wire rope 20 wrapped around it is loosened. At this time, the tension spring 15 contracts, which in turn drives the sliding sleeve 13 to slide upward. During the upward movement of the sliding sleeve 13, the connecting rod 14 pushes the stirring rod 4 to unfold outward around the hinge point between it and the rotating shaft 2. The unfolding angle of the stirring rod 4 continues to increase as the upward movement of the sliding sleeve 13 increases. At this time, the stirring intensity of the stirring rod 4 increases, thereby diluting the material more quickly.

[0061] When the viscosity is high enough, the stirring rod 4 is fully extended to its maximum angle. At this time, the scraper 5, which is fixedly connected to the end of the stirring rod 4, moves radially outward as the stirring rod 4 is extended. Finally, the arc-shaped surface of the scraper 5 comes into contact with the inner wall of the mixing tank 1, and continuously scrapes off the high-viscosity paste material adhering to the tank wall to prevent the material from accumulating on the wall and forming scorch or residue.

[0062] Simultaneously, diluting solvent is injected into the injection tube 11. The solvent enters the cavity through the rotary joint 12 and then into the delivery tube 16. At this time, the deflection of the rotary tube 17 relative to the delivery tube 16 causes the injection hole 22 on the side wall of the rotary tube 17 to gradually align with the delivery hole 21. The delivery hole 21 connects with the first cavity inside the rotating shaft 2. As the overlapping area of ​​the injection hole 22 and the delivery hole 21 increases, the flow cross-section of the solvent gradually increases, and the injection volume increases accordingly. That is, under high viscosity conditions, the solvent injection volume automatically increases to match the need for more solvent dilution of high-viscosity materials. The orientation of the injection hole 22 is opposite to the rotation direction of the rotating shaft 2, effectively preventing high-viscosity materials from flowing back into the rotary tube 17 and the delivery tube 16 from the injection hole 22.

[0063] As stirring continues, the viscosity of the material gradually decreases under the combined effects of heating, solvent dilution, and mechanical shearing. As the viscosity decreases, the impact resistance on the baffle plate 3 at the bottom of the fan blade 18 decreases, and the torsion spring 19 gradually overcomes the material resistance, driving the rotating tube 17 to rotate in the opposite direction and reset. At this time, the wire rope 20 is tightened, and it pulls the sliding sleeve 13 downwards, gradually pulling the stirring rod 4 back to its original position via the connecting rod 14. The expansion angle of the stirring rod 4 decreases, the stirring radius shortens, the scraper 5 separates from the tank wall, and the stirring intensity automatically decreases. This reduces the resistance of the motor 7 driving the rotating shaft 2, thus achieving energy saving. The overlapping area of ​​the injection hole 22 and the conveying hole 21 decreases, and the solvent injection amount automatically decreases. This achieves adaptive adjustment of stirring intensity and solvent injection amount according to changes in material viscosity: strong stirring and more solvent injection when the viscosity is high, and gentle stirring and less solvent injection when the viscosity is low.

[0064] Meanwhile, because the fan blade 18 is tilted, its continuous rotation propels the diluted low-viscosity material to flow within the mixing tank 1, creating an overall convection circulation. Driven by the fan blade 18, the diluted low-viscosity material continuously surges upwards along the inner wall of the mixing tank 1, forming an upward-flowing circulation path. This circulation path continuously washes the inner wall of the mixing tank 1, the stirring rod 4, the scraper 5, the conveying pipe 16, the rotating pipe 17, and the surface of the fan blade 18 itself. Using the flowing material as a cleaning medium, it continuously washes away any residual material that has not yet firmly adhered to the surfaces of the components, ensuring that the surfaces of each component remain self-cleaning during the mixing process. This effectively avoids the risk of residue accumulation and cross-contamination caused by material adhering to the walls or surfaces of internal components during the low-viscosity stage. Meanwhile, the overall convection circulation allows the heat transferred from the heating chamber to the tank wall to be rapidly distributed to all areas of the tank along with the circulating flow of the material. This continuously transports the hot material from the tank wall to the central area of ​​the tank, while simultaneously transporting the cooler material from the central area to the tank wall for heating. This eliminates the temperature gradient inside the tank, making the material heated more evenly and further promoting the full dissolution of flavonoids, thus ensuring the uniformity of the final liquid and the stability of the product quality.

[0065] Continue stirring and heating for the preset time to allow the flavonoids to fully dissolve and form a homogeneous solution. After mixing is complete, open the discharge pipe 26 to discharge the homogeneous solution.

[0066] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A method for efficient extraction of liquid flavonoids from licorice alcohol extract, characterized in that, Includes the following steps: S1: Add the licorice extract into the mixing tank (1) and introduce the heating medium into the heating component on the mixing tank (1) to heat the licorice extract in the mixing tank (1); S2: The stirring component is driven by the driving component in the mixing tank (1) to continuously stir the material in the tank; S3: During the stirring process, the stirring adjustment component in the mixing tank (1) automatically adjusts the stirring intensity of the material according to the viscosity of the material, and adds solvent for diluting the material to the material in the mixing tank (1) through the solvent injection component on the mixing tank (1). At the same time, the solvent injection amount adjustment component in the mixing tank (1) automatically adjusts the solvent injection amount according to the viscosity of the material in the mixing tank (1). S4: Maintain stirring and heating for the preset time to allow flavonoids to fully dissolve and form a homogeneous liquid; S5: After mixing is complete, discharge the homogeneous liquid from the mixing tank (1).

2. The method for efficient extraction of liquid flavonoids from licorice alcohol extract according to claim 1, characterized in that, In step S1, the temperature at which the licorice extract material in the mixing tank (1) is heated is 40-60℃.

3. A high-efficiency extraction device for liquid flavonoids from licorice alcohol extract, based on any one of the high-efficiency extraction methods for liquid flavonoids from licorice alcohol extract according to claims 1-2, characterized in that, The stirring assembly includes a rotating shaft (2) that is rotatably fitted to the top wall of the mixing tank (1), and stirring rods (4) that are symmetrically hinged to the side wall of the rotating shaft (2). Each end of the stirring rod (4) away from the rotating shaft (2) is hinged to a scraper (5). A cavity is opened inside the rotating shaft (2). A feeding pipe (25) is fixedly connected to the top of the mixing tank (1), and a discharge pipe (26) is fixedly connected to the bottom of the mixing tank (1).

4. The high-efficiency extraction device for liquid flavonoids from licorice alcohol extract according to claim 3, characterized in that, The drive assembly includes a controller and a bracket (6) fixedly connected to the top of the mixing tank (1); a drive component is fixedly connected to the top of the bracket (6), and the controller is used to control the rotation of the output shaft of the drive component; a driven gear (8) is fixedly connected to the rotating shaft (2) coaxially; the output shaft of the drive component passes through the bracket (6) and is fixedly connected to the drive gear (9) coaxially, and the drive gear (9) and the driven gear (8) mesh.

5. The high-efficiency extraction device for liquid flavonoids from licorice alcohol extract according to claim 4, characterized in that, The solvent filling assembly includes an "L"-shaped retainer (10) fixedly connected to the top of the support (6). A liquid injection tube (11) is fixedly connected to the horizontal end of the retainer (10). The liquid injection tube (11) and the rotating shaft (2) are rotatably connected through a rotary joint (12). The liquid injection tube (11) and the cavity are connected through the rotary joint (12).

6. The high-efficiency extraction device for liquid flavonoids from licorice alcohol extract according to claim 5, characterized in that, The stirring and regulating assembly includes a sliding sleeve (13) fitted and slidably fitted on a rotating shaft (2). A connecting rod (14) is symmetrically hinged on the side wall of the sliding sleeve (13). The end of the connecting rod (14) away from the sliding sleeve (13) is hinged to the adjacent stirring rod (4). A tension spring (15) is fitted on the rotating shaft (2). One end of the tension spring (15) is fixedly connected to the side wall of the rotating shaft (2), and the other end of the tension spring (15) is fixedly connected to the top of the sliding sleeve (13). A conveying pipe (16) is symmetrically fixedly connected to the side wall of the rotating shaft (2), and the conveying pipe (16) is connected to the cavity. A rotating pipe (17) is sleeved on the outside of the conveying pipe (16), and a fan blade (18) is fixedly connected to the end of the rotating pipe (17) away from the conveying pipe (16). Torsion springs (19) are fixedly connected to the inner wall of the rotating tube (17), and the other end of the torsion springs (19) is fixedly connected to the adjacent conveying tube (16). All rotating tubes (17) are wound with steel wire ropes (20). The end of the steel wire rope (20) away from the rotating tube (17) is fixedly connected to the sliding sleeve (13). The winding directions of adjacent steel wire ropes (20) are opposite.

7. The high-efficiency extraction device for liquid flavonoids from licorice alcohol extract according to claim 6, characterized in that, The solvent filling volume adjustment assembly includes a delivery hole (21) on the side wall of the delivery pipe (16) and an injection hole (22) on the side wall of the rotating pipe (17) that is compatible with the delivery hole (21).

8. The high-efficiency extraction device for liquid flavonoids from licorice alcohol extract according to claim 7, characterized in that, The heating assembly includes a heating chamber located within the side wall of the mixing tank (1); The mixing tank (1) is fixedly connected to the top of the liquid outlet pipe (23), which is connected to the heating chamber. The mixing tank (1) is fixedly connected to the side wall of the mixing tank (1), which is connected to the heating chamber.

9. The high-efficiency extraction device for liquid flavonoids from licorice alcohol extract according to claim 8, characterized in that, Each fan blade (18) has a baffle plate (3) fixedly connected to its bottom.

10. The high-efficiency extraction device for liquid flavonoids from licorice alcohol extract according to claim 9, characterized in that, The orientation of the injection hole (22) is opposite to the rotation direction of the shaft (2).

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