Traditional Chinese medicine extracting and filtering system

Abstract

The utility model belongs to the technical field of traditional Chinese medicine preparation, and particularly relates to a traditional Chinese medicine extracting and filtering system which comprises an extracting tank, a feeding opening is formed in the extracting tank, a gas pipeline connector is arranged at the upper end of the extracting tank, a steam inlet is formed in one side of the extracting tank, and a steam adjusting valve is arranged at the steam inlet. An extracting solution outlet of the extracting tank is connected with an inlet of a first circulating pump, an outlet of the first circulating pump is connected with an inlet of a stainless steel filter element filter, a fourth temperature sensor is arranged at the inlet of the stainless steel filter element filter, and a reflux inlet of the stainless steel filter element filter is connected with the inlet of the first circulating pump; an outlet of the stainless steel filter element filter is connected with a hot end inlet of the first heat exchanger, and a hot end outlet of the first heat exchanger is connected with an inlet of the third liquid storage tank. The steam inlet is formed in the extraction tank, high-temperature steam is introduced into the extraction tank, a high-temperature and high-pressure environment of the extraction tank is created, and the dissolution rate of traditional Chinese medicine ingredients is further increased.

Description

Technical Field

[0001] This utility model belongs to the field of traditional Chinese medicine preparation technology, specifically relating to a traditional Chinese medicine extraction and filtration system. Background Technology

[0002] Water extraction is the primary method for extracting traditional Chinese medicine (TCM), and multi-functional extraction tanks and hot reflux extraction units are the main equipment used in this process. However, current TCM extraction equipment, including multi-functional extraction tanks and hot reflux extraction units, cannot operate above the boiling point of water (100°C). The solubility of many active components of TCM in water increases dramatically with temperature, especially when the temperature exceeds 150°C, i.e., in the subcritical state of water, where the solubility of many active components approaches that of ethanol.

[0003] In recent years, membrane separation technologies, including ceramic membranes, nanofiltration, and reverse osmosis, have been widely used in plant extraction and separation due to their unique separation advantages. However, they are rarely used in the production of traditional Chinese medicine (TCM) preparations. TCM preparations, especially solid dosage forms, almost universally face challenges such as high yields during extraction and significant deviations in the registration process. While existing membrane separation equipment can effectively remove large suspended solids, the transfer rate of active ingredients, particularly those whose solubility is highly temperature-dependent, is very low. Utility Model Content

[0004] This invention provides a traditional Chinese medicine extraction and filtration system to address the aforementioned problems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A traditional Chinese medicine extraction and filtration system includes an extraction tank with a feeding port for adding medicinal materials and water. A gas pipeline interface is located at the upper end of the extraction tank for vacuuming or introducing a protective atmosphere. A steam inlet is located on one side of the extraction tank for introducing steam. A steam regulating valve is located at the steam inlet. A third temperature sensor is installed on the extraction tank. The extract outlet of the extraction tank is connected to the inlet of a first circulation pump. The outlet of the first circulation pump is connected to the inlet of a stainless steel filter cartridge. A fourth temperature sensor is located at the inlet of the stainless steel filter cartridge. The reflux port of the stainless steel filter cartridge is connected to the inlet of the first circulation pump. The outlet of the stainless steel filter cartridge is connected to the hot end inlet of a first heat exchanger. The hot end outlet of the first heat exchanger is connected to the inlet of a third storage tank. A fifth temperature sensor is located at the hot end outlet of the first heat exchanger.

[0007] Furthermore, a pressure regulating port is provided at the upper end of the No. 3 storage tank. The No. 3 storage tank is used for vacuuming or for introducing compressed air into it. The outlet of the No. 3 storage tank is connected to the inlet of the No. 2 storage tank. The outlet of the No. 2 storage tank is connected to the inlet of the No. 1 centrifugal pump. The outlet of the No. 1 centrifugal pump is connected to the inlet of the No. 1 plunger pump. The outlet of the No. 1 plunger pump is connected to the cold end inlet of the No. 3 heat exchanger. The No. 1 centrifugal pump is used to control the flow rate of the extract. The plunger pump is used to control the pressure of the extractant. The cold end outlet of the third heat exchanger is connected to the inlet of the ceramic microfiltration membrane module. A temperature sensor and a pressure sensor are installed at the inlet of the ceramic microfiltration membrane module. The reflux port of the ceramic microfiltration membrane module is connected to the inlet of the second storage tank. The outlet of the ceramic microfiltration membrane module is connected to the hot end inlet of the second heat exchanger. The hot end outlet of the second heat exchanger is connected to the inlet of the first storage tank. A flow regulating valve is installed at the hot end outlet of the second heat exchanger.

[0008] Furthermore, a level sensor is installed on the No. 1 storage tank. The outlet of the No. 1 storage tank is connected to the inlet of the No. 2 centrifugal pump. The outlet of the No. 2 centrifugal pump is connected to the inlet of the No. 2 plunger pump. The outlet of the No. 2 plunger pump is connected to the hot end inlet of the No. 4 heat exchanger. The hot end outlet of the No. 4 heat exchanger is connected to the inlet of the nanofiltration membrane module. The reflux port of the nanofiltration membrane module is connected to the inlet of the No. 1 storage tank. The outlet of the nanofiltration membrane module is connected to the inlet of the filtrate storage tank. A No. 2 pressure sensor and a No. 2 temperature sensor are installed at the inlet of the nanofiltration membrane module. A No. 2 flow regulating valve is installed at the reflux port of the nanofiltration membrane module. A No. 3 flow regulating valve is installed at the outlet of the nanofiltration membrane module.

[0009] Furthermore, it also includes a volatile oil collector, the inlet of which is connected to the hot end outlet of the condenser, the hot end inlet of the condenser is connected to the upper part of the extraction tank, and the condensate outlet of the volatile oil collector is connected to the upper part of the extraction tank, for returning the condensate collected by the volatile oil collector to the extraction tank.

[0010] Furthermore, it also includes a No. 1 cleaning tank and a No. 2 cleaning tank, both of which are used to store cleaning water. The outlet of the No. 1 cleaning tank is connected to the inlet of the No. 1 centrifugal pump, and the outlet of the No. 2 cleaning tank is connected to the inlet of the No. 2 centrifugal pump.

[0011] Compared with the prior art, the present invention has the following advantages:

[0012] This invention improves the dissolution rate of traditional Chinese medicine components by introducing high-temperature steam into the extraction tank through a steam inlet, creating a high-temperature and high-pressure environment. Simultaneously, a third heat exchanger is installed on the inlet side of the ceramic microfiltration membrane module to heat the extract, ensuring the solubility of the medicinal components and preventing the ceramic microfiltration membrane module from filtering out the effective medicinal components. A fourth heat exchanger is installed on the inlet side of the nanofiltration membrane module to cool the extract, allowing the effective medicinal components to be extracted and filtered out by the nanofiltration membrane module. The filtered waste liquid is collected in a filtrate storage tank. This nanofiltration membrane module reduces the yield of the prepared Chinese medicine and improves its efficacy.

[0013] This invention features a No. 1 and No. 2 cleaning tank for backwashing corresponding components, which can prevent different traditional Chinese medicines from mixing and improve the purity of the traditional Chinese medicines. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] In the diagram, the components are: extraction tank 1, feed port 2, gas pipeline interface 3, steam inlet 4, steam regulating valve 5, temperature sensor #3 6, circulating pump #1 7, stainless steel filter cartridge 8, temperature sensor #4 9, heat exchanger #1 10, storage tank #3 11, temperature sensor #5 12, pressure regulating port 13, storage tank #2 14, centrifugal pump #1 15, plunger pump #1 16, heat exchanger #3 17, ceramic microfiltration membrane module 18, and temperature sensor #1 19. Pressure sensor 1 (20), heat exchanger 2 (21), liquid storage tank 1 (22), centrifugal pump 2 (23), plunger pump 2 (24), heat exchanger 4 (25), nanofiltration membrane module (26), filtrate storage tank (27), pressure sensor 2 (28), temperature sensor 2 (29), flow control valve 2 (30), flow control valve 3 (31), volatile oil collector (32), condenser (33), cleaning tank 1 (34), cleaning tank 2 (35), flow control valve 1 (36), level sensor (37). Detailed Implementation

[0016] To further illustrate the technical solution of this utility model, the following embodiments will be used to further explain this utility model.

[0017] like Figure 1As shown, a traditional Chinese medicine extraction and filtration system includes an extraction tank 1 with a feeding port 2 for adding medicinal materials and water. A gas pipeline interface 3 is located at the upper end of the extraction tank 1, through which a vacuum is evacuated or a protective atmosphere is introduced. A steam inlet 4 is located on one side of the extraction tank 1 for introducing steam. A steam regulating valve 5 is located at the steam inlet 4. A third temperature sensor 6 is installed on the extraction tank 1. The inlet of a volatile oil collector 32 is connected to the hot end outlet of a condenser 33, and the hot end inlet of the condenser 33 is connected to the upper part of the extraction tank 1. The condensate outlet of the collector 32 is connected to the upper part of the extraction tank 1, used to return the condensate collected by the volatile oil collector 32 to the extraction tank 1. The extract outlet of the extraction tank 1 is connected to the inlet of the first circulation pump 7. The outlet of the first circulation pump 7 is connected to the inlet of the stainless steel filter element 8. A fourth temperature sensor 9 is installed at the inlet of the stainless steel filter element 8. The return port of the stainless steel filter element 8 is connected to the inlet of the first circulation pump 7. The outlet of the stainless steel filter element 8 is connected to the hot end inlet of the first heat exchanger 10. The hot end outlet of the first heat exchanger 10 is connected to the inlet of the third storage tank 11. A fifth temperature sensor 12 is installed at the hot end outlet of the first heat exchanger 10. A pressure regulating port 13 is provided at the upper end of the liquid tank 11. Vacuuming or compressed air is introduced into the third liquid storage tank 11 through the pressure regulating port 13. The outlet of the third liquid storage tank 11 is connected to the inlet of the second liquid storage tank 14. The outlet of the second liquid storage tank 14 is connected to the inlet of the first centrifugal pump 15. The outlet of the first centrifugal pump 15 is connected to the inlet of the first plunger pump 16. The outlet of the first plunger pump 16 is connected to the cold end inlet of the third heat exchanger 17. The first centrifugal pump 15 controls the flow rate of the extract, and the first plunger pump 16 controls the pressure of the extract. The cold end outlet of the third heat exchanger 17 is connected to the inlet of the ceramic microfiltration membrane assembly 18. A temperature sensor 19 and a pressure sensor 20 are installed at the inlet of component 18. The reflux port of the ceramic microfiltration membrane assembly 18 is connected to the inlet of the second storage tank 14. The outlet of the ceramic microfiltration membrane assembly 18 is connected to the hot end inlet of the second heat exchanger 21. The hot end outlet of the second heat exchanger 21 is connected to the inlet of the first storage tank 22. A flow regulating valve 36 is installed at the hot end outlet of the second heat exchanger 21. A level sensor 37 is installed on the first storage tank 22. The outlet of the first storage tank 22 is connected to the inlet of the second centrifugal pump 23. The outlet of the second centrifugal pump 23 is connected to the inlet of the second plunger pump 24. The outlet of the second plunger pump 24 is connected to the hot end inlet of the fourth heat exchanger 25.The hot end outlet of heat exchanger 25 is connected to the inlet of nanofiltration membrane module 26. The reflux port of nanofiltration membrane module 26 is connected to the inlet of liquid storage tank 22. The outlet of nanofiltration membrane module 26 is connected to the inlet of filtrate storage tank 27. A second pressure sensor 28 and a second temperature sensor 29 are installed at the inlet of nanofiltration membrane module 26. A second flow regulating valve 30 is installed at the reflux port of nanofiltration membrane module 26. A third flow regulating valve 31 is installed at the outlet of nanofiltration membrane module 26.

[0018] It also includes a first cleaning tank 34 and a second cleaning tank 35, both of which are used to store cleaning water. The outlet of the first cleaning tank 34 is connected to the inlet of the first centrifugal pump 15, and the outlet of the second cleaning tank 35 is connected to the inlet of the second centrifugal pump 23.

[0019] The foregoing has shown and described the main features and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model.

[0020] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A traditional Chinese medicine extraction and filtration system, characterized in that: The extraction tank (1) includes a feeding port (2) for adding Chinese medicinal materials and water. A gas pipeline interface (3) is located at the upper end of the extraction tank (1) for evacuating the tank or introducing a protective atmosphere. A steam inlet (4) is located on one side of the extraction tank (1) for introducing steam. A steam regulating valve (5) is located at the steam inlet (4). A third temperature sensor (6) is located on the extraction tank (1). The extract outlet of 1) is connected to the inlet of the first circulation pump (7), the outlet of the first circulation pump (7) is connected to the inlet of the stainless steel filter (8), a fourth temperature sensor (9) is installed at the inlet of the stainless steel filter (8), the return port of the stainless steel filter (8) is connected to the inlet of the first circulation pump (7), the outlet of the stainless steel filter (8) is connected to the hot end inlet of the first heat exchanger (10), the hot end outlet of the first heat exchanger (10) is connected to the inlet of the third storage tank (11), and a fifth temperature sensor (12) is installed at the hot end outlet of the first heat exchanger (10).

2. The traditional Chinese medicine extraction and filtration system according to claim 1, characterized in that: A pressure regulating port (13) is provided at the upper end of the No. 3 storage tank (11). Vacuuming or compressed air is introduced into the No. 3 storage tank (11) through the pressure regulating port (13). The outlet of the No. 3 storage tank (11) is connected to the inlet of the No. 2 storage tank (14). The outlet of the No. 2 storage tank (14) is connected to the inlet of the No. 1 centrifugal pump (15). The outlet of the No. 1 centrifugal pump (15) is connected to the inlet of the No. 1 plunger pump (16). The outlet of the No. 1 plunger pump (16) is connected to the cold end inlet of the No. 3 heat exchanger (17). The No. 1 centrifugal pump (15) is used to control the flow rate of the extract. A stopper pump (16) is used to control the pressure of the extract. The cold end outlet of the third heat exchanger (17) is connected to the inlet of the ceramic microfiltration membrane module (18). A first temperature sensor (19) and a first pressure sensor (20) are installed at the inlet of the ceramic microfiltration membrane module (18). The reflux port of the ceramic microfiltration membrane module (18) is connected to the inlet of the second storage tank (14). The outlet of the ceramic microfiltration membrane module (18) is connected to the hot end inlet of the second heat exchanger (21). The hot end outlet of the second heat exchanger (21) is connected to the inlet of the first storage tank (22). A first flow regulating valve (36) is installed at the hot end outlet of the second heat exchanger (21).

3. The traditional Chinese medicine extraction and filtration system according to claim 2, characterized in that: A liquid level sensor (37) is installed on the first liquid storage tank (22). The outlet of the first liquid storage tank (22) is connected to the inlet of the second centrifugal pump (23). The outlet of the second centrifugal pump (23) is connected to the inlet of the second plunger pump (24). The outlet of the second plunger pump (24) is connected to the hot end inlet of the fourth heat exchanger (25). The hot end outlet of the fourth heat exchanger (25) is connected to the inlet of the nanofiltration membrane module (26). The reflux port of the nanofiltration membrane module (26) is connected to the inlet of the first storage tank (22), the outlet of the nanofiltration membrane module (26) is connected to the inlet of the filtrate storage tank (27), a second pressure sensor (28) and a second temperature sensor (29) are provided at the inlet of the nanofiltration membrane module (26), a second flow regulating valve (30) is provided at the reflux port of the nanofiltration membrane module (26), and a third flow regulating valve (31) is provided at the outlet of the nanofiltration membrane module (26).

4. The traditional Chinese medicine extraction and filtration system according to claim 1, characterized in that: It also includes a volatile oil collector (32), the inlet of which is connected to the hot end outlet of the condenser (33), the hot end inlet of the condenser (33) is connected to the upper part of the extraction tank (1), and the condensate outlet of the volatile oil collector (32) is connected to the upper part of the extraction tank (1), for returning the condensate collected by the volatile oil collector (32) to the extraction tank (1).

5. A traditional Chinese medicine extraction and filtration system according to claim 3, characterized in that: It also includes a No. 1 cleaning tank (34) and a No. 2 cleaning tank (35), both of which are used to store cleaning water. The outlet of the No. 1 cleaning tank (34) is connected to the inlet of the No. 1 centrifugal pump (15), and the outlet of the No. 2 cleaning tank (35) is connected to the inlet of the No. 2 centrifugal pump (23).

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