Negative pressure purification equipment for traditional Chinese medicine raw materials

Abstract

The invention relates to the technical field of traditional Chinese medicine preparation, in particular to traditional Chinese medicine raw material negative pressure purification equipment which comprises a purification tank, a chromatography unit is arranged in the middle of the purification tank, a feeding port and a discharging port are formed in the two opposite sides corresponding to the upper portion of the chromatography unit respectively, a first pressure adjusting connector is formed in the top end of the purification tank, and a discharging port is formed in the bottom end of the purification tank; the feed port and the discharge port are respectively provided with a sealing valve cover, the first pressure regulating interface is provided with a first electromagnetic valve, and the discharge port is provided with a drain valve; a negative pressure interface of the vacuum pump is communicated with the first pressure regulating interface through a first electromagnetic valve; the first three-way reversing valve is connected between the vacuum pump and the first pressure regulating interface and is provided with a first air pressure balancing port; the vacuum pump, the first three-way reversing valve and the first electromagnetic valve are electrically connected with the controller. In the process of controlling the pressure change in the purification tank, the speed of liquid components in traditional Chinese medicine raw materials passing through the chromatography unit is increased, so that the purification efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of Chinese medicine preparation, and in particular to negative pressure purification equipment for Chinese medicine raw materials. Background Art

[0002] Traditional Chinese medicine contains complex ingredients, so it needs to be purified and separated to extract the ingredients inside the traditional Chinese medicine that have therapeutic effects on diseases and maximize the therapeutic effects of traditional Chinese medicine. In the existing traditional Chinese medicine separation and purification process, chromatography columns are often simply used to separate and purify the traditional Chinese medicine using gravity. This process takes too long and the separation and purification efficiency is too low. Summary of the invention

[0003] The invention provides a negative pressure purification device for Chinese medicine raw materials, which accelerates the speed at which liquid components in the Chinese medicine raw materials pass through a chromatography unit during the process of controlling the pressure change inside a purification tank, thereby improving the purification efficiency.

[0004] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a negative pressure purification equipment for Chinese medicine raw materials, comprising: a purification tank, a chromatography unit is provided in the middle of the purification tank, and a feed port and a discharge port are respectively provided on two 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; the feed port and the discharge port are respectively provided with sealing valve covers, the first pressure regulating interface is provided with a first solenoid valve, and the discharge port is provided with a liquid discharge valve; a vacuum pump, 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, the first three-way reversing valve is connected between the vacuum pump and the first pressure regulating interface, and is provided with a first air pressure balance port; a controller, the vacuum pump, the first three-way reversing valve and the first solenoid valve are respectively electrically connected to the controller.

[0005] Preferably, the chromatography unit comprises a plurality of transverse sieve plates disposed transversely in the purification tank, and chromatography materials are respectively provided between any two of the transverse sieve plates, and each of the chromatography materials is spaced apart from the transverse sieve plate above.

[0006] Preferably, a second pressure regulating port is provided on the outer wall of the purification tank corresponding to each of the chromatography materials, 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 air pressure balance port.

[0007] Preferably, the transverse sieve plate includes an upper sieve plate and a lower sieve plate fixedly arranged 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 in the center of the top of the movable sieve plate. The control shaft passes through the axial hole and sequentially penetrates the upper sieve plate and the top of the purification tank to extend upward, and is connected to the electric cylinder, and the electric cylinder is electrically connected to the controller.

[0008] Preferably, a stirring rod is provided above the control shaft corresponding to the chromatography unit; a turntable is provided at the top of the purification tank, and an axial hole is provided at the bottom of the turntable to cooperate with the center of the top of the purification tank, the control shaft passes through the turntable and cooperates with the turntable through a spline, the electric cylinder is vertically 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 effect of the present invention is that: after the decocted Chinese medicine raw materials are fed into the purification tank through the feed port, the sealing valve cover is closed to make the purification tank in a sealed state. At this time, the liquid part of the Chinese medicine principle penetrates to the bottom of the purification tank through the chromatography unit, thereby achieving a slow purification effect. In order to speed up the purification speed, the staff starts the vacuum pump through the controller. At this time, the air at the bottom of the purification tank is pumped upward through the chromatography unit. In this process, the trace amount of drug residues that penetrate into the chromatography unit are reversely pumped out, thereby achieving a 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 first three-way reversing valve stops working, and the first pressure regulating interface is connected to the first air pressure balance port under the action of the controller. At this time, the first solenoid valve is opened, and the external air flows into the purification tank through the first pressure regulating interface, so that the air pressure in the upper and lower parts of the purification tank tends to be balanced. This process accelerates the speed at which the liquid components in the Chinese medicine raw materials pass through the chromatography unit, thereby improving the purification efficiency. The controller collects the internal pressure changes of the purification tank through the pressure sensor on the top of the purification tank, and manages the start and stop of the vacuum pump and the working status of the first three-way reversing valve and the first solenoid valve, thereby shortening the separation and purification time and improving the work efficiency. Since the chromatography unit is 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 to allow air to enter the corresponding chromatography material and the horizontal screen plate from any second air pressure balance port, thereby simultaneously completing the effect of accelerating purification and cleaning the chromatography material. The electric cylinder drives the movable screen plate to move up and down under the action of the controller, thereby squeezing the upper and lower layers of chromatography materials to achieve a reduction effect. The controller drives the turntable to rotate through the reduction motor, and the electric cylinder rotates with the turntable through the control shaft to make the stirring rod inside the purification tank stir the solid components in the Chinese medicine raw materials, thereby facilitating the penetration and purification of the liquid components. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

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

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

[0013] In the figure: 1. purification tank; 2. feed inlet; 3. discharge port; 4. first pressure regulating interface; 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 air pressure balance port; 12. chromatography material; 13. second pressure regulating port; 14. second three-way reversing valve; 15. second air pressure balance 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. reduction motor; 24. pressure sensor. DETAILED DESCRIPTION

[0014] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0015] according to Figure 1 , Figure 2As shown, a negative pressure purification device for Chinese medicine raw materials comprises: a purification tank 1, wherein a chromatography unit is provided in the middle of the purification tank 1, and a feed port 2 and a discharge port 3 are respectively provided on 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; the feed port 2 and the discharge port 3 are respectively provided with a sealing valve cover 6, the first pressure regulating interface 4 is provided with a first solenoid valve 7, and the discharge port 5 is provided with a drain valve 8; a vacuum pump 9, wherein the negative pressure interface of the vacuum pump 9 is connected to the first pressure regulating interface 4 through the first solenoid valve 7; a first three-way reversing valve 10, wherein the first three-way reversing valve 10 is connected between the vacuum pump 9 and the first pressure regulating interface 4, and is provided with a first air pressure balance port 11; a controller, wherein the vacuum pump 9, the first three-way reversing valve 10 and the first solenoid valve 7 are respectively electrically connected to the controller. The chromatography unit comprises a plurality of transverse sieve plates horizontally arranged in the purification tank 1, and a chromatography material 12 is respectively arranged between any two of the transverse sieve plates, and each of the chromatography materials 12 is spaced apart from the transverse sieve plate above.

[0016] Through the above arrangement, after the decocted Chinese medicine raw materials are fed into the purification tank 1 through the feed port 2, and then the sealing valve cover 6 is closed to make the purification tank 1 in a sealed state, at this time, the liquid part of the Chinese medicine principle penetrates to the bottom of the purification tank 1 through the chromatography unit, thereby achieving a slow purification effect. In order to speed up the purification speed, the staff starts the vacuum pump 9 through the controller. At this time, the air at the bottom of the purification tank 1 is pumped upward through the chromatography unit. In this process, the trace amount of drug residues penetrating into the chromatography unit is reversely pumped out, thereby 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 first Under the action of the controller, a three-way reversing valve 10 connects the first pressure regulating interface 4 with the first air pressure balance port 11. At this time, the first solenoid valve 7 is opened, and external air flows into the purification tank 1 through the first pressure regulating interface 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 medicine 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 25 on 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 work efficiency.

[0017] The outer wall of the purification tank 1 is provided with a second pressure regulating port 13 corresponding to the top of 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 air pressure balance port 15.

[0018] Through this arrangement, since the chromatography unit has a multi-stage structure, when the purification tank 1 is in a low-pressure state, the controller changes the state of the second three-way reversing valve 14 to allow air to enter between the corresponding chromatography material 12 and the cross screen plate from any second air pressure balance port 15, thereby simultaneously achieving the effect of accelerating the purification and cleaning the chromatography material 12.

[0019] The transverse sieve plate includes an upper sieve plate 16 and a lower sieve plate 17 fixedly arranged in the purification tank 1, and a movable sieve plate 18 slidingly fitted between the upper sieve plate 16 and the lower sieve plate 17. A control shaft 19 is provided in the center of the top of the movable sieve plate 18. The control shaft 19 passes through the axial hole and sequentially penetrates the upper sieve plate 16 and the top of the purification tank 1 to extend upward, and is connected to the electric cylinder 20, and the electric cylinder 20 is electrically connected to the controller.

[0020] Through this arrangement, 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 the chromatography material 12 to achieve a reduction effect.

[0021] A stirring rod 22 is provided above the control shaft 19 corresponding to the chromatography unit; a turntable 23 is provided at the top of the purification tank 1, and an axial hole is provided at the bottom of the turntable 23 to cooperate with the center of the top of the purification tank 1. The control shaft 19 passes through the turntable 23 and cooperates with the turntable 23 through a spline. The electric cylinder 20 is vertically arranged on one side of the turntable 23, and a reduction motor 24 is provided between the purification tank 1 and the turntable 23; the reduction motor 24 is electrically connected to the controller.

[0022] With this arrangement, the controller drives the turntable 23 to rotate via the reduction motor 24, and the electric cylinder 20 rotates with the turntable 23 through the control shaft 19 to enable the stirring rod 22 inside the purification tank 1 to stir the solid components in the Chinese medicine raw materials, thereby facilitating the penetration and purification of the liquid components.

[0023] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A negative pressure purification equipment for Chinese medicine raw materials, characterized in that: include: A purification tank (1), wherein a chromatography unit is provided in the middle of the purification tank (1), and a feed port (2) and a discharge port (3) are provided on two opposite sides above the chromatography unit, respectively; 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; the feed port (2) and the discharge port (3) are respectively provided with sealing valve covers (6), the first pressure regulating interface (4) is provided with a first solenoid valve (7), and the discharge port (5) is provided with a drain valve (8); A vacuum pump (9), wherein a negative pressure interface of the vacuum pump (9) is connected to the first pressure regulating interface (4) via the first solenoid valve (7); A first three-way reversing valve (10), the first three-way reversing valve (10) is connected between the vacuum pump (9) and the first pressure regulating interface (4), and is provided with a first air pressure balancing port (11); A controller, wherein the vacuum pump (9), the first three-way reversing valve (10) and the first solenoid valve (7) are electrically connected to the controller respectively.

2. The negative pressure purification equipment for Chinese medicine raw materials according to claim 1, characterized in that: The chromatography unit comprises a plurality of transverse sieve plates disposed transversely in the purification tank (1), a chromatography material (12) is disposed between any two of the transverse sieve plates, and each of the chromatography materials (12) is spaced apart from the transverse sieve plate above.

3. The negative pressure purification equipment for Chinese medicinal raw materials according to claim 2, 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), and each of the second pressure regulating ports (13) is connected to the negative pressure interface of the vacuum pump (9) via a second three-way reversing valve (14), and each of the second three-way reversing valves (14) is provided with a second air pressure balance port (15).

4. The negative pressure purification equipment for Chinese medicine raw materials according to claim 2, characterized in that: The transverse sieve plate comprises an upper sieve plate (16) and a lower sieve plate (17) fixedly arranged 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 center of the top of the movable sieve plate (18), the control shaft (19) passes through the axial hole and sequentially penetrates the upper sieve plate (16) and the top of the purification tank (1) to extend upward, and is connected to an electric cylinder (20), and the electric cylinder (20) is electrically connected to the controller.

5. The negative pressure purification equipment for Chinese medicinal raw materials according to claim 4, characterized in that: A stirring rod (22) is provided above the control shaft (19) corresponding to the chromatography unit; a turntable (23) is provided at the top of the purification tank (1); a shaft hole is provided at the bottom of the turntable (23) to cooperate with the central shaft hole at the top of the purification tank (1); the control shaft (19) passes through the turntable (23) and cooperates with the turntable (23) through a spline; the electric cylinder (20) is vertically arranged on one side of the turntable (23); a reduction motor (24) is provided between the purification tank (1) and the turntable (23); the reduction motor (24) is electrically connected to the controller.

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