Simple device for concentrating traditional Chinese medicine extracting solution by utilizing membrane separation principle

Abstract

The utility model discloses a simple device for concentrating a traditional Chinese medicine extracting solution by utilizing a membrane separation principle, which comprises a coarse filtering box, a pressure maintaining conveyor, a fine filtering box and a membrane separation box, and is characterized in that the pressure maintaining conveyor is arranged and is used for conveying a traditional Chinese medicine stock solution filtered by the coarse filtering box into the fine filtering box; when the pressure maintaining conveyor injects liquid into a second box body of the fine filtering box, rotating flashboards in the pressure maintaining conveyor are driven by a motor to rotate, so that the traditional Chinese medicine stock solution enters the second box body, sealing sleeves are arranged on the outer sides of the rotating flashboards and are attached to the inner wall of a cavity, and when more than three rotating flashboards rotate, the sealing sleeves are tightly attached to the inner wall of the cavity; the through holes in the upper side and the lower side of the shell are always separated, so that the internal pressure loss during liquid injection of the box body II is reduced, liquid can be continuously injected into the box body II under the condition of ensuring the internal pressure of the box body II, the traditional Chinese medicine stock solution can be continuously and finely filtered, and the concentration and extraction efficiency of the traditional Chinese medicine stock solution is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of traditional Chinese medicine extraction technology, specifically a simple device for concentrating traditional Chinese medicine extracts using the principle of membrane separation. Background Technology

[0002] Traditional Chinese medicine extraction and separation uses medicinal plants as raw materials and undergoes physicochemical extraction and separation processes to selectively obtain and concentrate one or more effective components from the plants without altering their structure and function. Depending on the components extracted from the plants, these products can form natural substances such as glycosides, acids, polyphenols, polysaccharides, terpenes, flavonoids, and alkaloids, which have a wide range of applications.

[0003] Currently, commonly used separation and concentration technologies include fluid extraction, resin separation, evaporation concentration, and membrane separation concentration. Due to its advantages of high efficiency, low energy consumption, and minimal loss of active ingredients through volatilization, membrane separation technology is widely used in the concentration and extraction of traditional Chinese medicine. For example, Chinese utility model patent CN210495953U discloses a forward osmosis integrated treatment device for concentrating traditional Chinese medicine extracts, including a raw liquid tank and a primary membrane filtration device, a secondary membrane separation device, a forward osmosis membrane concentration device, and a forward osmosis extract regeneration device connected sequentially via pipelines. The system includes a control module; a feed pump is installed in the inlet pipe of the primary membrane filtration device, the forward osmosis membrane concentration device, and the forward osmosis draw solution regeneration device; liquid pressure, flow rate, and temperature sensors are installed in the inlet and outlet pipes of the forward osmosis membrane concentration device; and liquid pressure, flow rate, and temperature sensors are installed in the inlet pipe of the forward osmosis draw solution regeneration device. The system utilizes forward osmosis membranes to separate and purify traditional Chinese medicine extracts, achieving good separation of effective components. The subsequent concentration process involves lower pressure, higher membrane flux, lower temperature with no phase change, and lower operating costs, thus demonstrating broad application prospects in the concentration of traditional Chinese medicine extracts.

[0004] When using membrane separation technology to concentrate traditional Chinese medicine, the raw herbal solution needs to be coarsely filtered to remove larger particles, and then finely filtered through membrane filtration to remove smaller particles. However, the membrane filtration process requires pressurization, which prevents the injection of liquid during fine filtration, thus hindering continuous fine filtration and resulting in low concentration and extraction efficiency. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this invention provides a simple device for concentrating traditional Chinese medicine extracts using membrane separation principles, thus solving the aforementioned problems.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model is implemented through the following technical solution: a simple device for concentrating traditional Chinese medicine extract using the principle of membrane separation, comprising a coarse filter box, a pressure-holding conveyor, a fine filter box, and a membrane separation box, wherein the bottom of the coarse filter box is connected to the fine filter box through the pressure-holding conveyor, and the bottom of the fine filter box is connected to the membrane separation box.

[0009] The pressure-holding conveyor includes a housing, a motor, a cavity, a rotating shaft, a rotating sleeve, a rotating gate, a through hole, an outlet pipe, and a valve. The motor is fixed to the front end of the housing. A cavity is formed in the middle of the housing. A rotating shaft is set in the middle of the cavity, and the front end of the rotating shaft is connected to the output shaft of the motor via a coupling. A rotating sleeve is fitted on the outside of the rotating shaft, and a rotating gate is welded to the outside of the rotating sleeve. Through holes are formed in the middle of the top and bottom of the housing. The through hole at the bottom of the housing is connected to the outlet pipe, and the through hole at the top of the housing is connected to the valve. The bottom of the outlet pipe is connected to the fine filter box, and the top of the valve is connected to the coarse filter box.

[0010] Preferably, the coarse filter box includes a box body, an inlet hopper, a filter frame, a filter screen, and a connecting pipe. The inlet hopper is provided at the top of the box body, the filter frame is arranged horizontally in the middle of the box body, and the filter screen is provided inside the filter frame. The bottom end of the box body is connected to the connecting pipe, and the bottom end of the connecting pipe is connected to a valve.

[0011] Preferably, the fine filter box includes a second box body, a filter membrane cartridge, a second valve, a first discharge pipe, a third valve, a second connecting pipe, a first pressurizing pipe, and a fourth valve. The filter membrane cartridge is vertically arranged in the middle of the inner part of the second box body. The second valve is installed at the bottom edge of the second box body, and the bottom end of the second valve is connected to the first discharge pipe. The bottom middle of the filter membrane cartridge is connected to the third valve, and the bottom end of the third valve is connected to the second connecting pipe. The top left side of the second box body is connected to the fourth valve, and the top of the fourth valve is connected to the first pressurizing pipe. The top right side of the second box body is connected to the outlet pipe.

[0012] Preferably, the membrane separation box includes a box body three, a separation membrane cylinder, a valve five, a concentrate collection container, a valve six, a discharge pipe two, a valve seven, and a pressurization pipe two. The separation membrane cylinder is disposed in the middle of the inner part of the box body three. The bottom left side of the box body three is connected to the valve five, and the bottom end of the valve five is connected to the concentrate collection container. The bottom middle of the separation membrane cylinder is connected to the valve six, and the bottom end of the valve six is ​​connected to the discharge pipe two. The top left side of the box body three is connected to the valve seven, and the left side of the valve seven is connected to the pressurization pipe two. The top left side of the box body three is connected to the connecting pipe two.

[0013] Preferably, a sealing sleeve is fitted on the outer side of the rotating gate, and the sealing sleeve fits against the inner wall of the cavity.

[0014] Preferably, the cavity inside the outer shell is circular in side view, and the cavity is concentrically arranged with the rotating shaft and the rotating sleeve.

[0015] Preferably, at least three rotating gates are provided, and they are evenly arranged with the rotating shaft as the center.

[0016] Preferably, a liquid level sensor, a pressure relief valve, and a pressure sensor are installed on the outer sides of both the second body of the fine filter box and the third body of the membrane separation box.

[0017] (III) Beneficial Effects

[0018] This invention provides a simple device for concentrating traditional Chinese medicine extracts using the principle of membrane separation. The device offers the following advantages: By incorporating a pressure-holding conveyor, the herbal extract filtered through the coarse filter box is transported to the fine filter box. During injection into the fine filter box, a rotating gate inside the conveyor is driven by a motor. This rotation moves the herbal extract to the bottom, allowing it to enter the fine filter box. A sealing sleeve on the outside of the rotating gate fits snugly against the inner wall of the cavity, enhancing the sealing effect. With at least three rotating gates, the upper and lower openings on the outer shell are constantly separated, preventing pressure loss through the cavity when the valve is opened. This reduces internal pressure loss during injection, allowing continuous injection into the fine filter box while maintaining internal pressure. This enables continuous fine filtration of the herbal extract, effectively increasing its concentration and extraction efficiency. Furthermore, the device is small in size, simple in structure, requires minimal space, and is easy to use. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the pressure-holding conveyor structure of this utility model;

[0021] Figure 3 This is a right view of the internal structure of the pressure-maintaining conveyor of this utility model;

[0022] Figure 4 This is a schematic diagram of the rotating gate structure in this utility model;

[0023] Figure 5 This is a schematic diagram of the internal structure of the coarse filter box in this utility model;

[0024] Figure 6This is a schematic diagram of the internal structure of the fine filter box of this utility model;

[0025] Figure 7 This is a schematic diagram of the internal structure of the membrane separation box in this utility model.

[0026] In the diagram: Coarse filter box-1, Box body 1-11, Inlet hopper-12, Filter frame-13, Filter screen-14, Connecting pipe 1-15;

[0027] Pressure-holding conveyor-2, outer shell-21, motor-22, cavity-23, rotating shaft-24, rotating sleeve-25, rotating gate-26, through hole-27, outlet pipe-28, valve-1-29, sealing sleeve-261;

[0028] Fine filter box-3, box body two-31, filter membrane cartridge-32, valve two-33, discharge pipe one-34, valve three-35, connecting pipe two-36, booster pipe one-37, valve four-38;

[0029] Membrane Separation Box-4, Box Body Three-41, Separation Membrane Tube-42, Valve Five-43, Concentrate Collection Container-44, Valve Six-45, Discharge Pipe Two-46, Valve Seven-47, Pressure Booster Pipe Two-48;

[0030] Level sensor-5, pressure relief valve-6, pressure sensor-7. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Please see Figure 1 This utility model provides a simple device for concentrating traditional Chinese medicine extract using the principle of membrane separation: a simple device for concentrating traditional Chinese medicine extract using the principle of membrane separation includes a coarse filter box 1, a pressure conveyor 2, a fine filter box 3 and a membrane separation box 4. The bottom of the coarse filter box 1 is connected to the fine filter box 3 through the pressure conveyor 2, and the bottom of the fine filter box 3 is connected to the membrane separation box 4.

[0033] Please see Figure 2-4The pressure-holding conveyor 2 includes a housing 21, a motor 22, a cavity 23, a rotating shaft 24, a rotating sleeve 25, a rotating gate 26, a through hole 27, an outlet pipe 28, and a valve 29. The motor 22 is fixed at the front end of the housing 21. A cavity 23 is opened in the middle of the housing 21. A rotating shaft 24 is arranged in the middle of the cavity 23. The front end of the rotating shaft 24 is connected to the output shaft of the motor 22 through a coupling. A rotating sleeve 25 is fitted on the outside of the rotating shaft 24. A rotating gate 26 is welded to the outside of the rotating sleeve 25. Through holes 27 are opened in the middle of the top and bottom of the housing 21. The through hole 27 at the bottom of the housing 21 is connected to the outlet pipe 28. The through hole 27 at the top of the housing 21 is connected to the valve 29. The bottom of the outlet pipe 28 is connected to the fine filter box 3. The top of the valve 29 is connected to the coarse filter box 1.

[0034] The cavity 23 inside the outer shell 21 is circular in side view, and the cavity 23 is concentrically arranged with the rotating shaft 24 and the rotating sleeve 25. The outer side of the rotating gate 26 is fitted with a sealing sleeve 261, and the sealing sleeve 261 fits against the inner wall of the cavity 23, so that the sealing sleeve 261 fits tightly against the inner wall of the cavity 23, thereby increasing the sealing effect on the housing 2 31.

[0035] At least three rotating gates 26 are provided and are evenly arranged with the rotating shaft 24 as the center. When the three or more rotating gates 26 rotate, they always separate the through holes 27 on the upper and lower sides of the outer shell 21, so as to prevent the second box 31 from releasing pressure through the cavity 23 of the outer shell 21 when the first valve 29 is opened.

[0036] Please see Figure 5 The coarse filter box 1 includes a box body 11, an inlet hopper 12, a filter frame 13, a filter screen 14, and a connecting pipe 15. The inlet hopper 12 is provided at the top of the box body 11. The filter frame 13 is arranged horizontally in the middle of the box body 11, and the filter screen 14 is provided inside the filter frame 13. The bottom end of the box body 11 is connected to the connecting pipe 15, and the bottom end of the connecting pipe 15 is connected to the valve 29.

[0037] Please see Figure 6 The fine filter box 3 includes a second box body 31, a filter membrane cartridge 32, a second valve 33, a first discharge pipe 34, a third valve 35, a second connecting pipe 36, a first pressurization pipe 37, and a fourth valve 38. The filter membrane cartridge 32 is vertically installed in the middle of the inner part of the second box body 31. The second valve 33 is installed at the bottom edge of the second box body 31, and the bottom end of the second valve 33 is connected to the first discharge pipe 34. The bottom middle of the filter membrane cartridge 32 is connected to the third valve 35, and the bottom end of the third valve 35 is connected to the second connecting pipe 36. The top left side of the second box body 31 is connected to the fourth valve 38, and the top of the fourth valve 38 is connected to the first pressurization pipe 37. The top right side of the second box body 31 is connected to the outlet pipe 28.

[0038] Please see Figure 7 The membrane separation chamber 4 includes a chamber body 41, a separation membrane cylinder 42, a valve 5 43, a concentrate collection container 44, a valve 6 45, a discharge pipe 2 46, a valve 7 47, and a pressure boosting pipe 2 48. The separation membrane cylinder 42 is located in the middle of the chamber body 41. The bottom left side of the chamber body 41 is connected to the valve 5 43, and the bottom end of the valve 5 43 is connected to the concentrate collection container 44. The bottom middle of the separation membrane cylinder 42 is connected to the valve 6 45, and the bottom end of the valve 6 45 is connected to the discharge pipe 2 46. The top left side of the chamber body 41 is connected to the valve 7 47, and the left side of the valve 7 47 is connected to the pressure boosting pipe 2 48. The top left side of the chamber body 41 is connected to the connecting pipe 2 36.

[0039] Liquid level sensor 5, pressure relief valve 6, and pressure sensor 7 are installed on the outside of the second chamber 31 of the fine filter box 3 and the third chamber 41 of the membrane separation box 4. Liquid level sensor 5 and pressure sensor 7 are used to detect the internal liquid level and pressure of the second chamber 31 and the third chamber 41. Pressure relief valve 6 is used to relieve the internal pressure of the second chamber 31 and the third chamber 41. When the pressure is too high, the pressure relief valve 6 is used to release the air and relieve the pressure.

[0040] The filter membrane cartridge 32 uses an inorganic ceramic membrane, which is an inorganic or polymeric material with special selective separation function, and can effectively separate small impurities in the original Chinese medicine liquid;

[0041] The separation membrane cartridge 42 uses a nanofiltration membrane. A nanofiltration membrane is a functional semi-permeable membrane that allows solvent molecules or certain low molecular weight solutes or low valence ions to pass through. It is a special and promising type of separation membrane that allows small molecules such as water to pass through, thereby achieving the purpose of separating small molecules such as water in traditional Chinese medicine from the effective components of traditional Chinese medicine, and thus obtaining a concentrated solution of traditional Chinese medicine.

[0042] Boost pipe 37 and boost pipe 48 are used to connect to external boosting equipment, such as air compressors, which have the function of increasing pressure.

[0043] In use, first pour the raw Chinese medicine solution into the housing 11 through the inlet hopper 12, and then perform coarse filtration through the filter screen 14 to remove larger impurities.

[0044] When it is necessary to inject the coarsely filtered Chinese herbal medicine liquid into the second chamber 31 of the fine filter box 3, the valve 29 is opened, allowing the Chinese herbal medicine liquid to enter the cavity 23 of the outer shell 21 through the connecting pipe 15. Since the cavity 23 is equipped with a rotating gate 26, the rotating gate 26 isolates the Chinese herbal medicine liquid to the top. Through the drive motor 22, the motor 22 generates power to drive the rotating shaft 24 to rotate through the output shaft. The rotating shaft 24 drives the rotating sleeve 25 and the rotating gate 26 to rotate. Through the rotation of the rotating gate 26, the Chinese herbal medicine liquid is rotated to the through hole 27 below the outer shell 21 and flows into the second chamber 31 through the outflow pipe 28. The liquid level sensor 5 detects the liquid level inside the second chamber 31. When the liquid level inside the second chamber 31 reaches the preset maximum value, the motor 22 stops operating and the valve 29 is closed.

[0045] When valve 4 38 is opened, the external pressurization device pressurizes the inside of box 2 31 through pressurization pipe 1 37, and the pressure sensor 7 detects the pressure inside box 2 31. When the preset value is reached, valve 4 38 is closed to stop pressurizing the inside of box 2 31. The Chinese medicine raw liquid inside box 2 31 is filtered through filter membrane cylinder 32.

[0046] When the liquid level inside the second chamber 31 drops to the preset minimum value, and the first chamber 11 contains coarsely filtered Chinese herbal medicine liquid, the valve 29 is opened and the motor 22 is started to inject liquid into the second chamber 31. Since the outer side of the rotating gate 26 is equipped with a sealing sleeve 261 that fits against the inner wall of the cavity 23, the sealing effect of the second chamber 31 is increased. Moreover, there are at least three rotating gates 26. When the three or more rotating gates 26 rotate, they always separate the through holes 27 on the upper and lower sides of the outer shell 21, preventing the second chamber 31 from being depressurized through the cavity 23 of the outer shell 21 when the valve 29 is opened. This reduces the internal pressure loss when the second chamber 31 is injected with liquid, and thus the liquid can be continuously injected into the second chamber 31 while ensuring the internal pressure of the second chamber 31. This allows for continuous fine filtration of the Chinese herbal medicine liquid.

[0047] When there is no Chinese medicine raw liquid in the first box 11, no liquid injection operation is performed in the second box 31. Whether there is Chinese medicine raw liquid in the first box 11 can be monitored by the liquid level sensor. After the second box 31 is separated, the liquid containing fine particulate impurities is discharged through the discharge pipe 34 by opening the valve 2 33.

[0048] By opening valve 35, the original Chinese medicine liquid filtered through filter membrane cartridge 32 enters the chamber 41 of membrane separation tank 4 through connecting pipe 2 36. The liquid level in chamber 41 is monitored by liquid level sensor 5. When the preset maximum value is reached, valve 35 is closed.

[0049] By opening valve 7 (47), the external pressurization device pressurizes the interior of chamber 3 (41) through pressurization pipe 2 (48). Pressure sensor 7 detects the internal pressure of chamber 3 (41). When the preset value is reached, valve 7 (47) is closed, and the herbal extract is separated by membrane separation tube 42. Membrane separation tube 42 allows small molecules such as water to permeate, thus separating water and other small molecules from the effective components of the herbal medicine, resulting in a concentrated herbal extract. The water and other small molecules are discharged through discharge pipe 2 (46).

[0050] When the liquid level inside chamber 3 41 drops to the preset value, the concentrated Chinese medicine solution reaches a certain concentration. Then, valve 5 43 is opened to allow the concentrated Chinese medicine solution to enter the concentrated solution collection container 44 for collection. The finely filtered original Chinese medicine solution can then be injected back into chamber 3 41 for membrane separation and concentration.

[0051] The control method of this utility model is to control the device by manually starting and stopping the switch. The wiring diagram of the power element and the supply of power are common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and wiring layout will not be explained in detail.

[0052] The control method of this utility model is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail.

[0053] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A simple device for concentrating traditional Chinese medicine extracts using membrane separation principle, characterized in that: It includes a coarse filter box (1), a pressure conveyor (2), a fine filter box (3) and a membrane separation box (4). The bottom of the coarse filter box (1) is connected to the fine filter box (3) through the pressure conveyor (2), and the bottom of the fine filter box (3) is connected to the membrane separation box (4). The pressure-holding conveyor (2) includes a housing (21), a motor (22), a cavity (23), a rotating shaft (24), a rotating sleeve (25), a rotating gate (26), a through hole (27), an outlet pipe (28), and a valve (29). The motor (22) is fixed at the front end of the housing (21), and a cavity (23) is opened in the middle of the housing (21). The rotating shaft (24) is arranged in the middle of the cavity (23), and the front end of the rotating shaft (24) is connected to the output shaft of the motor (22) through a coupling. A rotating sleeve (25) is fitted on the outside of the rotating shaft (24), and a rotating gate (26) is welded on the outside of the rotating sleeve (25). A through hole (27) is provided at the middle of the top and bottom of the outer shell (21). The through hole (27) at the bottom of the outer shell (21) is connected to the outlet pipe (28), and the through hole (27) at the top of the outer shell (21) is connected to the valve (29). The bottom of the outlet pipe (28) is connected to the fine filter box (3), and the top of the valve (29) is connected to the coarse filter box (1).

2. The simple device for concentrating traditional Chinese medicine extracts using membrane separation principle according to claim 1, characterized in that: The coarse filter box (1) includes a box body (11), an inlet hopper (12), a filter frame (13), a filter screen (14), and a connecting pipe (15). The top of the box body (11) is provided with an inlet hopper (12). The middle of the box body (11) is horizontally provided with a filter frame (13), and the filter screen (14) is provided inside the filter frame (13). The bottom of the box body (11) is connected to the connecting pipe (15), and the bottom of the connecting pipe (15) is connected to the valve (29).

3. A simple device for concentrating traditional Chinese medicine extracts using membrane separation principle according to claim 1, characterized in that: The fine filter box (3) includes a box body two (31), a filter membrane cylinder (32), a valve two (33), a discharge pipe one (34), a valve three (35), a connecting pipe two (36), a pressurizing pipe one (37), and a valve four (38). The filter membrane cylinder (32) is vertically arranged in the middle of the inner part of the box body two (31). The valve two (33) is installed at the bottom edge of the box body two (31), and the bottom end of the valve two (33) is connected to the discharge pipe one (34). The bottom middle of the filter membrane cylinder (32) is connected to the valve three (35), and the bottom end of the valve three (35) is connected to the connecting pipe two (36). The top left side of the box body two (31) is connected to the valve four (38), and the top of the valve four (38) is connected to the pressurizing pipe one (37). The top right side of the box body two (31) is connected to the outlet pipe (28).

4. A simple device for concentrating traditional Chinese medicine extracts using membrane separation principle according to claim 1, characterized in that: The membrane separation box (4) includes a box body (41), a separation membrane cylinder (42), a valve (43), a concentrate collection container (44), a valve (45), a discharge pipe (46), a valve (47), and a pressure boosting pipe (48). The separation membrane cylinder (42) is located in the middle of the box body (41). The bottom left side of the box body (41) is connected to the valve (43), and the bottom end of the valve (43) is connected to the concentrate collection container (44). The bottom middle of the separation membrane cylinder (42) is connected to the valve (45), and the bottom end of the valve (45) is connected to the discharge pipe (46). The top left side of the box body (41) is connected to the valve (47), and the left side of the valve (47) is connected to the pressure boosting pipe (48). The top left side of the box body (41) is connected to the connecting pipe (36).

5. A simple device for concentrating traditional Chinese medicine extracts using membrane separation principle according to claim 1, characterized in that: The outer side of the rotating gate (26) is fitted with a sealing sleeve (261), and the sealing sleeve (261) fits against the inner wall of the cavity (23).

6. A simple device for concentrating traditional Chinese medicine extracts using membrane separation principle according to claim 1, characterized in that: The cavity (23) inside the outer shell (21) is circular in side view, and the cavity (23) is concentrically arranged with the rotating shaft (24) and the rotating sleeve (25).

7. A simple device for concentrating traditional Chinese medicine extracts using membrane separation principle according to claim 1, characterized in that: At least three rotating gates (26) are provided, and they are evenly arranged with the rotating shaft (24) as the center.

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