Traditional Chinese medicine raw material negative pressure purification equipment

Abstract

This invention relates to the field of traditional Chinese medicine preparation technology, specifically to a negative pressure purification device for traditional Chinese medicine raw materials. The device includes: a purification tank with a chromatography unit in the middle, and an inlet and an outlet on opposite sides above the chromatography unit; a first pressure regulating interface at the top of the purification tank and a discharge port at the bottom; sealing valve covers at the inlet and outlet; a first solenoid valve at the first pressure regulating interface and a drain valve at the discharge port; a vacuum pump with its negative pressure interface connected to the first pressure regulating interface via the first solenoid valve; a first three-way reversing valve connected between the vacuum pump and the first pressure regulating interface, and equipped with a first pressure balancing port; and a controller electrically connected to the vacuum pump, the first three-way reversing valve, and the first solenoid valve. This invention accelerates the passage of liquid components from the traditional Chinese medicine raw materials through the chromatography unit by controlling the pressure changes inside the purification tank, thereby improving purification efficiency.

Description

Technical Field

[0001] This invention relates to the field of traditional Chinese medicine preparation technology, specifically to a negative pressure purification device for traditional Chinese medicine raw materials. Background Technology

[0002] Traditional Chinese medicine (TCM) contains complex components, necessitating purification and separation to extract the therapeutic components and maximize their efficacy. Current TCM purification processes often rely solely on chromatography columns and gravity to separate and purify the herbs, a process that is time-consuming and inefficient. Summary of the Invention

[0003] This invention provides a negative pressure purification device for traditional Chinese medicine raw materials. By controlling the pressure change inside the purification tank, the speed at which the liquid components in the traditional Chinese medicine raw materials pass through the chromatography unit is accelerated, thereby improving the purification efficiency.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a negative pressure purification device for traditional Chinese medicine raw materials, comprising: a purification tank, wherein a chromatography unit is provided in the middle of the purification tank, and an inlet and an outlet are respectively provided on opposite sides above the chromatography unit; a first pressure regulating interface is provided at the top of the purification tank, and a discharge port is provided at the bottom; a sealing valve cover is provided at the inlet and the outlet; a first solenoid valve is provided at the first pressure regulating interface, and a drain valve is provided at the discharge port; a vacuum pump, wherein the negative pressure interface of the vacuum pump is connected to the first pressure regulating interface through the first solenoid valve; a first three-way reversing valve, wherein the first three-way reversing valve is connected between the vacuum pump and the first pressure regulating interface, and is provided with a first pressure balancing port; and a controller, wherein the vacuum pump, the first three-way reversing valve, and the first solenoid valve are electrically connected to the controller.

[0005] Preferably, the chromatography unit includes multiple horizontal sieves placed horizontally in the purification tank, with chromatography material disposed between any two horizontal sieves, and each chromatography material is spaced apart from the horizontal sieve above.

[0006] Preferably, the outer wall of the purification tank is provided with a second pressure regulating port above each of the chromatography materials, and each of the second pressure regulating ports is connected to the negative pressure interface of the vacuum pump through a second three-way reversing valve, and each of the second three-way reversing valves is provided with a second pressure balancing port.

[0007] Preferably, the transverse sieve plate includes an upper sieve plate and a lower sieve plate fixedly disposed in the purification tank, and a movable sieve plate slidably fitted between the upper sieve plate and the lower sieve plate. A control shaft is provided at the top center of the movable sieve plate. The control shaft passes through the shaft hole and extends upward through the upper sieve plate and the top of the purification tank in sequence, and is connected to an electric cylinder. The electric cylinder is electrically connected to the controller.

[0008] Preferably, the control shaft is provided with a stirring rod above the chromatography unit; the top of the purification tank is provided with a turntable, the bottom of the turntable is engaged with the shaft hole in the center of the top of the purification tank, the control shaft passes through the turntable and is engaged with the turntable through a spline, the electric cylinder is longitudinally placed on one side of the turntable, and a reduction motor is provided between the purification tank and the turntable; the reduction motor is electrically connected to the controller.

[0009] The beneficial effects of this invention are as follows: After decocting the traditional Chinese medicine raw materials, they are fed into the purification tank through the inlet. Then, the sealing valve cover is closed to keep the purification tank in a sealed state. At this time, the liquid portion of the traditional Chinese medicine permeates to the bottom of the purification tank through the chromatography unit, thereby achieving a slow purification effect. To accelerate the purification speed, the operator starts the vacuum pump through the controller. At this time, the air at the bottom of the purification tank is drawn upward through the chromatography unit. During this process, the trace amount of medicinal residue that has permeated into the chromatography unit is drawn out in the reverse direction, thereby achieving the self-cleaning effect of the chromatography unit. When the internal pressure of the purification tank reaches the preset value of the controller, the vacuum pump stops. The system stops operating, and the first three-way reversing valve, under the control of the controller, connects the first pressure regulating port to the first air pressure balance port. At this time, the first solenoid valve opens, and external air rushes into the purification tank through the first pressure regulating port, causing the air pressure in the upper and lower parts of the purification tank to tend to balance. This process accelerates the speed at which the liquid components in the Chinese herbal raw materials pass through the chromatography unit, thereby improving purification efficiency. The controller collects the internal pressure changes of the purification tank through the pressure sensor at the top of the purification tank and manages the start and stop of the vacuum pump, as well as the working status of the first three-way reversing valve and the first solenoid valve, thereby shortening the separation and purification time and improving work efficiency. Since the chromatography unit has a multi-stage structure, when the purification tank is in a low-pressure state, the controller changes the state of the second three-way reversing valve, allowing air to enter from any of the second air pressure balance ports between the corresponding chromatography material and the transverse sieve plate, thereby simultaneously accelerating purification and cleaning the chromatography material. The electric cylinder, under the control of the controller, drives the movable sieve plate to move up and down, thereby squeezing the upper and lower layers of chromatography material to achieve a reduction effect. The controller drives the turntable to rotate via a geared motor, and the electric cylinder rotates with the turntable, which in turn causes the stirring rod inside the purification tank to stir the solid components in the Chinese herbal raw materials via a control shaft, thereby facilitating the penetration and purification of the liquid components. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0012] Figure 2 This is a cross-sectional view of the internal structure of the present invention.

[0013] In the diagram: 1. Purification tank; 2. Inlet; 3. Outlet; 4. First pressure regulating port; 5. Discharge port; 6. Sealing valve cover; 7. First solenoid valve; 8. Drain valve; 9. Vacuum pump; 10. First three-way reversing valve; 11. First pressure balancing port; 12. Chromatography material; 13. Second pressure regulating port; 14. Second three-way reversing valve; 15. Second pressure balancing port; 16. Upper sieve plate; 17. Lower sieve plate; 18. Movable sieve plate; 19. Control shaft; 20. Electric cylinder; 21. Stirring rod; 22. Turntable; 23. Gear motor; 24. Pressure sensor. Detailed Implementation

[0014] 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 embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0015] according to Figure 1 , Figure 2As shown, a negative pressure purification device for traditional Chinese medicine raw materials includes: a purification tank 1, a chromatography unit in the middle of the purification tank 1, and an inlet 2 and an outlet 3 respectively on opposite sides above the chromatography unit; a first pressure regulating interface 4 at the top of the purification tank 1 and a discharge port 5 at the bottom; a sealing valve cover 6 for the inlet 2 and the outlet 3; a first solenoid valve 7 for the first pressure regulating interface 4; and a drain valve 8 for the discharge port 5; a vacuum pump 9, the negative pressure interface of which is connected to the first pressure regulating interface 4 through the first solenoid valve 7; a first three-way reversing valve 10, which is connected between the vacuum pump 9 and the first pressure regulating interface 4 and has a first pressure balancing port 11; and a controller, the vacuum pump 9, the first three-way reversing valve 10, and the first solenoid valve 7 being electrically connected to the controller. The chromatography unit includes multiple horizontal sieves placed horizontally in the purification tank 1, and chromatography material 12 is provided between any two horizontal sieves. Each chromatography material 12 is spaced apart from the horizontal sieve above.

[0016] With the above setup, the decocted Chinese herbal raw materials are fed into the purification tank 1 through inlet 2, and then the sealing valve cover 6 is closed to seal the purification tank 1. At this time, the liquid portion of the Chinese herbal medicine permeates to the bottom of the purification tank 1 through the chromatography unit, thus achieving a slow purification effect. To accelerate the purification speed, the operator starts the vacuum pump 9 through the controller. At this time, the air at the bottom of the purification tank 1 is drawn upward through the chromatography unit. During this process, the trace amount of residue permeating the chromatography unit is drawn out in the reverse direction, thus achieving the self-cleaning effect of the chromatography unit. When the internal pressure of the purification tank 1 reaches the preset value of the controller, the vacuum pump 9 stops working, and the... Under the control of the controller, the three-way reversing valve 10 connects the first pressure regulating port 4 with the first air pressure balance port 11. At this time, the first solenoid valve 7 opens, and external air flows into the purification tank 1 through the first pressure regulating port 4, so that the air pressure in the upper and lower parts of the purification tank 1 tends to be balanced. This process accelerates the speed at which the liquid components in the Chinese herbal raw materials pass through the chromatography unit, thereby improving the purification efficiency. The controller collects the internal pressure changes of the purification tank 1 through the pressure sensor 24 at the top of the purification tank 1, and manages the start and stop of the vacuum pump 9 and the working status of the first three-way reversing valve 10 and the first solenoid valve 7, thereby shortening the separation and purification time and improving the working efficiency.

[0017] The outer wall of the purification tank 1 is provided with a second pressure regulating port 13 above each of the chromatography materials 12. Each of the second pressure regulating ports 13 is connected to the negative pressure interface of the vacuum pump 9 through a second three-way reversing valve 14, and each of the second three-way reversing valves 14 is provided with a second pressure balance port 15.

[0018] With this setup, since the chromatography unit is a multi-stage structure, when the purification tank 1 is under low pressure, the controller changes the state of the second three-way reversing valve 14, allowing air to enter from any of the second pressure balance ports 15 between the corresponding chromatography material 12 and the horizontal sieve plate, thereby simultaneously achieving the effects of accelerating purification and cleaning the chromatography material 12.

[0019] The horizontal sieve plate includes an upper sieve plate 16 and a lower sieve plate 17 fixedly disposed in the purification tank 1, and a movable sieve plate 18 slidably fitted between the upper sieve plate 16 and the lower sieve plate 17. A control shaft 19 is provided at the top center of the movable sieve plate 18. The control shaft 19 passes through the shaft hole and extends upward through the upper sieve plate 16 and the top of the purification tank 1, and is connected to the electric cylinder 20. The electric cylinder 20 is electrically connected to the controller.

[0020] With this setup, the electric cylinder 20 drives the movable sieve plate 18 to move up and down under the action of the controller, thereby squeezing the upper and lower layers of chromatography material 12 to achieve a reduction effect.

[0021] The control shaft 19 is provided with a stirring rod 21 above the chromatography unit; the top of the purification tank 1 is provided with a turntable 22, the bottom of the turntable 22 is engaged with the shaft hole at the center of the top of the purification tank 1, the control shaft 19 passes through the turntable 22 and is engaged with the turntable 22 through a spline, the electric cylinder 20 is longitudinally placed on one side of the turntable 22, and a reduction motor 23 is provided between the purification tank 1 and the turntable 22; the reduction motor 23 is electrically connected to the controller.

[0022] With this setup, the controller drives the turntable 22 to rotate via the reduction motor 23, and the electric cylinder 20 rotates with the turntable 22, which in turn causes the stirring rod 21 inside the purification tank 1 to stir the solid components in the Chinese herbal raw materials via the control shaft 19, thereby facilitating the penetration and purification of the liquid components.

[0023] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A negative pressure purification device for traditional Chinese medicine raw materials, characterized in that, include: A purification tank (1) is provided in the middle of the purification tank (1), and an inlet (2) and an outlet (3) are respectively provided on the opposite sides above the chromatography unit. A first pressure regulating interface (4) is provided at the top of the purification tank (1), and a discharge port (5) is provided at the bottom. A sealing valve cover (6) is provided at the inlet (2) and the outlet (3). A first solenoid valve (7) is provided at the first pressure regulating interface (4), and a drain valve (8) is provided at the discharge port (5). Vacuum pump (9), the negative pressure port of the vacuum pump (9) is connected to the first pressure regulating port (4) through the first solenoid valve (7); The first three-way reversing valve (10) is connected between the vacuum pump (9) and the first pressure regulating port (4), and is provided with a first pressure balance port (11). The vacuum pump (9), the first three-way reversing valve (10), and the first solenoid valve (7) are electrically connected to the controller. The chromatography unit includes multiple horizontal sieve plates placed horizontally in the purification tank (1), and chromatography material (12) is provided between any two horizontal sieve plates. Each chromatography material (12) is spaced apart from the horizontal sieve plate above. The horizontal sieve plate includes an upper sieve plate (16) and a lower sieve plate (17) fixedly disposed in the purification tank (1), and a movable sieve plate (18) slidably fitted between the upper sieve plate (16) and the lower sieve plate (17). A control shaft (19) is provided at the top center of the movable sieve plate (18). The control shaft (19) passes through the shaft hole and extends upward through the top of the upper sieve plate (16) and the purification tank (1), and is connected to the electric cylinder (20). The electric cylinder (20) is electrically connected to the controller.

2. The negative pressure purification equipment for traditional Chinese medicine raw materials according to claim 1, characterized in that: The outer wall of the purification tank (1) is provided with a second pressure regulating port (13) above each of the chromatography materials (12). Each of the second pressure regulating ports (13) is connected to the negative pressure interface of the vacuum pump (9) through a second three-way reversing valve (14). Each of the second three-way reversing valves (14) is provided with a second pressure balance port (15).

3. The negative pressure purification equipment for traditional Chinese medicine raw materials according to claim 1, characterized in that: The control shaft (19) is provided with a stirring rod (21) above the chromatography unit; the top of the purification tank (1) is provided with a turntable (22), the bottom of the turntable (22) is engaged with the shaft hole in the center of the top of the purification tank (1), the control shaft (19) passes through the turntable (22) and is engaged with the turntable (22) through a spline, the electric cylinder (20) is placed longitudinally on one side of the turntable (22), and a reduction motor (23) is provided between the purification tank (1) and the turntable (22); the reduction motor (23) is electrically connected to the controller.

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