Continuous solid-liquid separation device for traditional Chinese medicine liquid

This continuous solid-liquid separation device for traditional Chinese medicine liquid, which uses a vacuum pump for air extraction and a detachable filter cartridge structure, solves the sealing and clogging problems of traditional Chinese medicine liquid separation devices, achieving efficient and flexible solid-liquid separation. It is suitable for small-flow materials, protects the efficacy of the medicine, and simplifies the cleaning process.

CN224100130UActive Publication Date: 2026-04-10ZHEJIANG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG UNIV
Filing Date
2025-05-20
Publication Date
2026-04-10

AI Technical Summary

Technical Problem

Existing solid-liquid separation devices for traditional Chinese medicine liquids suffer from problems such as jamming of complex moving parts and sealing issues. Furthermore, the complex components in the traditional Chinese medicine liquid can easily clog the membrane pores, leading to a decrease in membrane flux and an increase in energy consumption, which affects the separation effect and efficacy.

Method used

A continuous solid-liquid separation device for traditional Chinese medicine liquid was designed. It adopts a vacuum pump for air extraction, a detachable filter cartridge and filter screen structure, and achieves rapid filtration of materials through a conveying screw. The filter screen is made of stainless steel or nylon, and the outer shell is tilted to prevent liquid accumulation. The liquid is further purified by combining it with an activated carbon adsorption component.

Benefits of technology

It achieves efficient and flexible filtration of traditional Chinese medicine liquid, protects sensitive components from air, is suitable for small flow materials, ensures separation effect and efficacy, and the device has good airtightness, making it easy to clean and maintain.

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Abstract

The utility model discloses a continuous solid-liquid separation device for traditional Chinese medicine liquid, which belongs to the technical field of solid-liquid separation and structurally comprises a shell and a filter cartridge, one part of the filter cartridge is exposed, and the other part of the filter cartridge is arranged in an inner cavity of the shell; the upper end of the shell is provided with an extraction opening, and the lower end of the shell is provided with a liquid outlet; a filtering assembly is mounted at the liquid discharge hole and is used for further purifying the separated liquid; the main body part of the filter cartridge is cylindrical, the exposed side wall of the filter cartridge is not provided with a hole, the side wall of the filter cartridge arranged in the inner cavity of the shell is provided with a filter hole, the inner wall of the filter cartridge is detachably provided with a filter screen, and the aperture of the hole of the filter screen is smaller than that of the filter hole; a conveying screw is arranged in the filter cartridge, and one end of the conveying screw is connected with a driving motor; a feed port is formed in the side wall of the exposed front end of the filter cartridge, and the rear end of the filter cartridge is connected with a solid discharge port. The solid-liquid separation device can protect the medicine effect of air sensitive components in the traditional Chinese medicine liquid from being affected, and is very suitable for continuous solid-liquid separation of small-flow materials.
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Description

TECHNICAL FIELD

[0001] The utility model relates to solid -liquid separation technical field, concretely relates to a traditional Chinese medicine liquid continuous solid -liquid separation device. BACKGROUND

[0002] Traditional Chinese medicine liquid is liquid preparation extracted from traditional Chinese medicinal materials through decoction, dipping, percolation, reflux and other processes guided by traditional Chinese medicine theory, and is widely used in disease treatment, health care and other fields. The technical level of solid-liquid separation directly affects the quality and efficacy of related products. If solid substances such as suspended particles cannot be completely removed, it will cause traditional Chinese medicine liquid to be turbid and layered, affect product stability, and even have adverse effects on drug efficacy. Although membrane separation technology can improve the precision of solid-liquid separation, the various complex components in traditional Chinese medicine liquid are prone to block the membrane pores, resulting in a decrease in membrane flux and membrane pollution, and an increase in energy consumption. Therefore, developing efficient solid-liquid separation technology suitable for the characteristics of traditional Chinese medicine is the key to breaking through the bottleneck of industrial production of traditional Chinese medicine liquid.

[0003] The Chinese patent document with publication number CN222400401U discloses a solid-liquid separation device for traditional Chinese medicine extract, which includes a separation mechanism. The separation mechanism includes a box, a rectangular groove is formed on one side of the box, a storage box is slidably connected to the inner wall of the rectangular groove, a handle is fixedly connected to the side of the storage box away from the rectangular groove, a circular groove is formed on the top of the box, a filter plate is fixedly connected to the inner wall of the circular groove, a separation barrel is fixedly connected to the top of the box, and a through groove is formed on the circumferential surface of the separation barrel. The device has the effect of cleaning the filter plate, can prevent residue accumulation, and increases work efficiency.

[0004] The Chinese patent document with publication number CN118718497A discloses a solid-liquid separation device for traditional Chinese medicine liquid, which includes a box, a filter hole plate is arranged in the box, a pressing roller is arranged on the upper side of the filter hole plate, the pressing roller is rollingly and slidably arranged in the box, a residue scraping plate is also slidably arranged on the upper side of the filter hole plate, a driving assembly is arranged on the box to drive the residue scraping plate to slide, and a residue collecting box is arranged on the outer wall of the box. The patent uses the residue scraping plate to scrape and clean the medicinal residue on the surface of the filter hole plate, preventing the filter holes from being blocked by medicinal residue, and helping to improve the subsequent filtering effect.

[0005] However, the above-mentioned solid-liquid separation device may have problems such as complex motion components being prone to jamming and sealing problems. UTILITY MODEL CONTENTS

[0006] The utility model provides a kind of traditional Chinese medicine liquid continuous solid-liquid separation device, it is good in airtightness, can handle small flow solid-liquid mixture, and it is small in floor area, realizes the flexible filtration to different traditional Chinese medicine liquid.

[0007] The specific technical solutions adopted are as follows:

[0008] A traditional Chinese medicine liquid continuous solid-liquid separation device, the structure comprises: a shell and a filter cartridge, a part of the filter cartridge is exposed outside, and another part is arranged in the inner cavity of the shell;

[0009] An air outlet is arranged at the upper end of the shell and is used for connecting a vacuum pump, and a liquid discharge port is arranged at the lower end of the shell;

[0010] The main part of the filter cartridge is in a cylindrical shape, no hole is formed in the side wall of the filter cartridge exposed outside, filter holes are formed in the side wall of the filter cartridge arranged in the inner cavity of the shell, and a filter screen is detachably arranged on the inner wall of the filter holes, the aperture of the filter screen is smaller than the aperture of the filter holes; a conveying screw is arranged in the filter cartridge, one end of the conveying screw is connected with a driving motor; a feeding port is arranged on the front end side wall of the filter cartridge exposed outside, the rear end is connected with a solid discharge port, and the solid discharge port is connected with a residue tank.

[0011] The solid-liquid separation device can change the rotating speed of the conveying screw and the mesh number of the filter screen, so that the filtration of different traditional Chinese medicine liquids is realized, is particularly suitable for small-flow materials, and after the air outlet is connected with the vacuum pump, the rapid filtration of the traditional Chinese medicine liquid material can also be realized; and the solid-liquid separation device has good sealing performance and can ensure air isolation in the process of solid-liquid separation, so that sensitive components in the traditional Chinese medicine liquid are protected from the influence of air.

[0012] Further, the shell and the filter cartridge are detachably connected, and the connection can be realized through bolts and nuts, so that the device is convenient to disassemble.

[0013] Preferably, the lower end of the shell is arranged in a non-horizontal manner and is inclined to the liquid discharge port, and the inclination angle is preferably 5°. The non-horizontal arrangement is beneficial to the rapid flow of the liquid under the action of gravity and avoids the accumulation of the liquid.

[0014] Preferably, the material of the filter cartridge is stainless steel, the material of the filter screen is stainless steel or nylon, and the material of the conveying screw is polytetrafluoroethylene.

[0015] Preferably, the length of the filter cartridge is 20-500 cm, the inner diameter of the filter cartridge is 5-100 cm, the cross section of the shell is circular or similar to a circle, and the length of the shell is 15-495 cm.

[0016] Preferably, the filter screen and the filter cartridge are connected through buckles.

[0017] Preferably, the filter assembly is an activated carbon adsorption assembly, and the activated carbon adsorption assembly is connected with the liquid discharge port through threads, so that the device is convenient to disassemble.

[0018] Compared with the prior art, the device has the following beneficial effects:

[0019] (1) The continuous solid-liquid separation device for traditional Chinese medicine liquid provided by this utility model can ensure that the material does not come into contact with air during the solid-liquid separation process, thus protecting the efficacy of the air-sensitive components in the traditional Chinese medicine liquid from being affected. Furthermore, it can achieve flexible filtration of different traditional Chinese medicine liquids by changing the rotation speed of the conveying screw and the mesh size of the filter screen. This solid-liquid separation device is very suitable for continuous solid-liquid separation of small flow materials.

[0020] (2) The air extraction port of the continuous solid-liquid separation device for Chinese medicine liquid provided by this utility model can be connected to a vacuum pump to achieve rapid filtration of materials. The lower end of the outer shell is not horizontal and is inclined towards the liquid outlet, which can avoid liquid accumulation. The filter component can further purify the separated liquid and adsorb pigments, etc., to ensure the quality of the separated liquid material. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the continuous solid-liquid separation device for traditional Chinese medicine liquid.

[0022] Figure 2 This is a schematic diagram of the internal structure of the continuous solid-liquid separation device for traditional Chinese medicine liquid.

[0023] Reference numerals: 1. Outer shell, 2. Filter cartridge, 3. Filter screen, 4. Conveying screw, 5. Drive motor, 6. Slag bin, 7. Activated carbon adsorption assembly, 8. Air extraction port, 9. Feed inlet, 10. Liquid outlet, 11. Solid outlet, 12. Vacuum pump, 13. Liquid collection tank. Detailed Implementation

[0024] 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.

[0025] Example 1

[0026] like Figure 1 As shown, the continuous solid-liquid separation device for traditional Chinese medicine liquid includes: an outer shell 1 and a filter cylinder 2, with one part of the filter cylinder 2 exposed to the outside and the other part disposed in the inner cavity of the outer shell 1;

[0027] The upper end of the outer shell 1 is provided with an air extraction port 8, which is used to connect to the vacuum pump 12. The lower end of the outer shell 1 is provided with a liquid outlet 10. An activated carbon adsorption component 7 is installed at the liquid outlet 10 for further purification of the separated liquid. The liquid collection box 13 is used to collect the liquid material purified by the activated carbon adsorption component 7.

[0028] The main part of the filter cartridge 2 is cylindrical, the exposed filter cartridge side wall is not opened, the filter hole is opened on the filter cartridge side wall in the inner cavity of the shell, and the detachable filter screen 3 is installed on the inner wall, the mesh number of the filter screen 3 can be changed, but the opening diameter of the filter screen 3 needs to be smaller than the filter hole diameter; the conveying screw 4 is arranged in the filter cartridge 2, one end of the conveying screw 4 is connected with the driving motor 5; the feeding port 9 is arranged on the exposed front end side wall of the filter cartridge, the rear end is connected with the solid discharge port 11, and the solid discharge port 11 is connected with the residue tank 6.

[0029] Further, the shell 1 and the filter cartridge 2 are detachably connected through bolts and nuts, which is convenient for disassembly and cleaning, sealing gaskets are arranged at the connecting positions to prevent liquid material from leaking, the lower end of the shell 1 is not horizontally arranged and is inclined to the liquid discharge port to realize rapid filtration of the material.

[0030] Optionally, the cross section of the shell 1 is circular or circular-like, and the length of the shell is 20 cm.

[0031] Optionally, the material of the filter cartridge 2 is stainless steel, the length of the filter cartridge 2 is 25 cm, the inner diameter of the filter cartridge is 5 cm, and the filter hole diameter opened on the filter cartridge 2 is 10 mm.

[0032] Further, the material of the filter screen 3 is stainless steel or nylon, and the filter screen 3 and the filter cartridge 2 are connected through buckles.

[0033] Further, the material of the conveying screw 4 is polytetrafluoroethylene.

[0034] Further, the active carbon adsorption assembly 7 is threadedly connected with the liquid discharge port 10 and the liquid collecting tank 13, and sealing washers are arranged at the connecting positions to prevent liquid from leaking out.

[0035] Further, the filter cartridge rear end is connected with the solid discharge port 11 through the auxiliary action of the shell 1, and sealing washers are arranged at the connecting positions.

[0036] Working principle: the traditional Chinese medicine liquid (solid-liquid mixture, liquid material containing solid residues) enters the filter cartridge 2 of the traditional Chinese medicine liquid continuous solid-liquid separation device at a flow rate of 1-50 ml / min through the feed inlet 9, the driving motor 5 is controlled to rotate forward, the solid-liquid mixture is forwarded to the part provided with filter holes through the conveying screw 4, the suction port 8 is connected to the vacuum pump 12 to start vacuumizing, the liquid enters the shell through the filter screen 3 and the filter holes, and is discharged into the liquid collecting tank 13 after being adsorbed by the activated carbon adsorption assembly 7, the solid is discharged through the solid discharge port 11 under the driving action of the conveying screw 4, if the particle size of the solid in the solid-liquid mixture is large, the filter screen 3 with small mesh number can be selected by separating the shell 1 and the filter cartridge 2, so that the liquid can flow out quickly, if the particle size of the solid in the solid-liquid mixture is small, the filter screen 3 with large mesh number can be replaced, so that the liquid is not mixed with solid particles, and the liquid is clear and transparent. When the filter screen 3 and the filter cartridge 2 need to be cleaned, cleaning solvent can be introduced from the feed inlet 9, so that the filter cartridge 2 and the filter screen 3 can be quickly cleaned.

[0037] The above-described embodiments have described the technical solutions of the present application in detail, and it should be understood that the above-described embodiments are only specific embodiments of the present application, and are not used to limit the present application, and any modification, supplement or similar replacement made within the principle range of the present application should be included in the protection range of the present application.

Claims

1. A continuous solid-liquid separation device for traditional Chinese medicine liquid, characterized in that, The structure comprises a shell and a filter cartridge, one part of the filter cartridge is exposed outside, and the other part is arranged in the inner cavity of the shell; An air outlet is arranged at the upper end of the shell, the air outlet is used for connecting a vacuum pump, and a liquid discharge port is arranged at the lower end of the shell; a filter assembly is installed at the liquid discharge port and is used for further purifying the separated liquid; The main part of the filter cartridge is in a cylindrical shape, no hole is arranged on the side wall of the filter cartridge exposed outside, a filter hole is arranged on the side wall of the filter cartridge arranged in the inner cavity of the shell, and a filter screen is detachably installed on the inner wall of the filter hole, the aperture of the filter screen is smaller than the aperture of the filter hole; a conveying screw is arranged in the filter cartridge, one end of the conveying screw is connected with a driving motor; a feeding port is arranged on the front end side wall of the filter cartridge exposed outside, the rear end is connected with a solid discharge port, and the solid discharge port is connected with a residue tank.

2. The traditional Chinese medicine liquid continuous solid-liquid separation device according to claim 1, characterized in that, The shell and the filter cartridge are detachably connected.

3. The continuous solid-liquid separation device for traditional Chinese medicine liquid according to claim 1, characterized in that, The lower end of the shell is arranged in a non-horizontal manner and is inclined to the liquid discharge port.

4. The continuous solid-liquid separation device for traditional Chinese medicine liquid according to claim 1, characterized in that, The material of the filter cartridge is stainless steel, the material of the filter screen is stainless steel or nylon, and the material of the conveying screw is polytetrafluoroethylene.

5. The continuous solid-liquid separation device for traditional Chinese medicine liquid according to claim 1, characterized in that, The length of the filter cartridge is 20-500 cm, the inner diameter of the filter cartridge is 5-100 cm, the cross section of the shell is circular or similar to a circle, and the length of the shell is 15-495 cm.

6. The continuous solid-liquid separation device for traditional Chinese medicine liquid according to claim 1, characterized in that, The filter screen and the filter cartridge are connected through buckles.

7. The continuous solid-liquid separation device for traditional Chinese medicine liquid according to claim 1, characterized in that, The filter assembly is an activated carbon adsorption assembly, and the activated carbon adsorption assembly is connected with the liquid discharge port through threads.

Citation Information

Patent Citations

  • Solid-liquid separation device for traditional Chinese medicine liquid

    CN118718497A

  • Solid-liquid separation device for traditional Chinese medicine extracting solution

    CN222400401U