A hot reflux traditional Chinese medicine extraction system

Abstract

The utility model provides a kind of hot reflux traditional chinese medicine extraction system, belong to traditional chinese medicine extraction technical field, including extraction tank, the top of extraction tank is sequentially connected with extraction valve, condenser, separator and liquid collecting tank by pipeline, the top of liquid collecting tank is connected with vacuum pump by pipeline, extraction tank bottom is sequentially connected with drain valve, filter, pipeline sight cup, liquid pump, liquid valve and evaporator by pipeline, the top of evaporator is connected to the pipeline between extraction valve and condenser by evaporation pipeline, steam valve is equipped on steam pipeline, heating tank is connected to the lower part of evaporator;The scheme adopts the process of reflux extraction and percolation extraction combination, and combines external circulation concentration technology, two processes of extraction and concentration are concentrated in one equipment, the production of flow immersion paste can be completed simultaneously and once, components between groups can be used alone, and continuous hot reflux extraction operation can be realized.

Description

Technical Field

[0001] This utility model relates to the field of traditional Chinese medicine extraction technology, specifically to a hot reflux traditional Chinese medicine extraction system. Background Technology

[0002] With the continuous improvement of material and spiritual life, traditional Chinese medicine and natural products are receiving more attention, and their applications in pharmaceuticals, food additives, and other fields are becoming increasingly widespread. In the extraction of effective components from traditional Chinese medicine and natural products, traditional extraction processes typically employ multiple independent devices to complete the extraction and concentration steps separately, often using only reflux extraction or percolation extraction. This process is complex, cumbersome, and time-consuming, which not only affects extraction efficiency and product quality consistency but also limits the development of continuous and automated processes, making it difficult to meet the demands of modern pharmaceutical and food industries for efficient, energy-saving, and green production. Utility Model Content

[0003] The purpose of this invention is to provide a hot reflux traditional Chinese medicine extraction system to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A hot reflux traditional Chinese medicine extraction system includes: an extraction tank, the top of which is connected in sequence via pipes to an extraction valve, a condenser, a separator, and a collection tank; the top of the collection tank is connected via pipes to a vacuum pump; the bottom of the extraction tank is connected in sequence via pipes to a drain valve, a filter, a liquid pump, a liquid valve, and an evaporator; the top of the evaporator is connected via an evaporation pipe to a pipe between the extraction valve and the condenser; a steam valve is installed on the steam pipe; and a heating tank is connected to the lower part of the evaporator for heating the liquid in the evaporator.

[0006] Preferably, a branch pipe is provided on the pipeline between the liquid valve and the liquid pump, the branch pipe is connected to the reflux inlet of the extraction tank, and a liquid reflux valve is provided on the branch pipe.

[0007] Preferably, a sight glass is fixedly installed on the pipe between the filter and the liquid pump.

[0008] Preferably, the separator is provided with a separation port and a reflux outlet, the reflux outlet is connected to the reflux inlet through a pipeline, and a distillate reflux valve is also provided on the pipeline between the reflux outlet and the reflux inlet.

[0009] Preferably, a vacuum valve is provided on the pipeline between the liquid collection tank and the vacuum pump.

[0010] The beneficial effects of the above-mentioned technical solution of this utility model are as follows:

[0011] This solution includes components such as an extractor, evaporator, filter, and separator. It adopts a process combining reflux extraction and percolation extraction, and incorporates external circulation concentration technology to integrate the extraction and concentration processes into one device. This allows for simultaneous and one-time production of fluid extracts. Each component can be used individually or for continuous thermal reflux extraction. Attached Figure Description

[0012] The above and other objects, features, and advantages of the present invention will become readily understood by reading the following detailed description of exemplary embodiments with reference to the accompanying drawings. In the drawings, several embodiments of the present invention are shown by way of example and not limitation, and like or corresponding reference numerals denote like or corresponding parts, wherein:

[0013] Figure 1 This is a flowchart illustrating the process of this utility model.

[0014] Explanation of reference numerals in the attached figures:

[0015] 1. Heating tank; 2. Evaporator; 3. Separator; 4. Evaporation pipe; 5. Condenser; 6. Extraction tank; 7. Collection tank; 8. Filter; 9. Pipe sight glass; 10. Vacuum pump; 11. Medicine pump; 12. Steam valve; 13. Extraction valve; 14. Drain valve; 15. Medicine valve; 16. Branch pipe; 17. Medicine return valve; 18. Return inlet; 19. Separation port; 20. Vacuum valve. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Those skilled in the art should understand that the embodiments described below are only some, not all, of the embodiments disclosed. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0017] This scheme employs reflux extraction and percolation extraction principles, combined with external circulation concentration technology, integrating the extraction and concentration processes into a single unit for the simultaneous production of fluid extract. During operation, 2-10 times the amount of solvent (process-determined) of the medicinal material is added to the extraction tank 6. After soaking, the mixture is heated by jacketed steam, and the extraction valve 13 is opened. The liquid in the extraction tank 6 boils. Depending on the boiling point of each solvent, the lower boiling point components boil first, turning into steam, which is then condensed in the condenser 5 and cooled to the separator 3. Whether reflux or discharge is necessary depends on the process requirements. The separator 3 utilizes the density difference between oil and water to separate the layers, thus obtaining the volatile oil. After steam extraction is complete, the drain valve 14 is opened (to enter the external circulation) to initiate concentration. The secondary steam from the evaporation chamber rises into the condenser 5 for cooling and then discharge. During this process, the vacuum pump 10 can be activated for vacuum decompression concentration (especially for water-based solutions) to accelerate the concentration rate. The evaporated solvent is separated and recovered through the separator 3 or the collection tank 7.

[0018] After introducing the basic principles of this utility model, various non-limiting embodiments of this utility model are described in detail below. Any quantity of elements in the accompanying drawings is for illustrative purposes only and not for limitation, and any naming is for distinction only and has no limiting meaning.

[0019] The principles and spirit of this utility model will be explained in detail below with reference to several representative embodiments.

[0020] Example 1

[0021] A hot reflux traditional Chinese medicine extraction system, such as Figure 1 As shown, the system includes an extraction tank 6, a condenser 5, a separator 3, a collection tank 7, a vacuum pump 10, a filter 8, a sight glass 9, a liquid pump 11, a heating tank 1, and an evaporator 2, all connected by pipes. The extraction tank 6 is used to heat the Chinese herbal medicine and solvent for extraction. The condenser 5 is used to condense and cool the vapor extract generated during extraction in the extraction tank 6 or the solvent vapor generated during concentration in the evaporator 2. The separator 3 separates the condensed product of the vapor extract according to density and determines whether it is discharged, refluxed, or enters the collection tank 7 according to the process. The collection tank 7 is used to collect liquid (mainly solvent, but also containing volatile extracts). The vacuum pump 10 provides a reduced pressure environment during concentration. The filter 8 filters the extract discharged from the bottom of the extraction tank 6. The sight glass 9 is used to observe the state of the liquid. The liquid pump 11 is used to lift the extract to the evaporator 2. The heating tank 1 is used to heat the liquid in the evaporator 2.

[0022] Specifically, the top of the extraction tank 6 is connected in sequence via pipes to the extraction valve 13, condenser 5, separator 3, and collection tank 7. The condenser 5 has a tube side and a shell side; the shell side is used to connect to the external cooling medium. The extraction tank 6 and separator 3 are connected via pipes through the tube side of the condenser 5. The separator 3 has a separation port 19 and a reflux outlet (not shown in the figure). The separation port 19 is used to separate the stratified coolant within the separator 3. The reflux outlet is connected via pipes to the reflux inlet 18 of the extraction tank 6. A distillate reflux valve 21 (not shown in the figure) is also installed on the pipe between the reflux outlet and the reflux inlet 18. The top of the collection tank 7 is connected via pipes to the vacuum pump 10. A vacuum valve 22 is installed on the pipe between the collection tank 7 and the vacuum pump 10. The vacuum valve 22 is activated when the vacuum pump 10 is turned on.

[0023] The bottom of the extraction tank 6 is connected in sequence via pipes to a drain valve 14, a filter 8, a sight glass 9, a liquid pump 11, a liquid valve 15, and an evaporator 2. The liquid enters the evaporator 2 from the top through the liquid valve 15. A branch pipe 16 is provided on the pipe between the liquid valve 15 and the liquid pump 11, and the branch pipe 16 is connected to the reflux inlet 18 of the extraction tank 6. A liquid reflux valve 17 is also provided on the branch pipe 16, which allows the liquid to reflux. The lower part of the evaporator 2 is connected to a heating tank 1. The liquid enters the heating tank 1 from the bottom of the evaporator 2, and after heating, the liquid returns from the top of the heating tank 1 to the middle / lower part of the evaporator 2. The top of the evaporator 2 is connected via an evaporation pipe 4 to the pipe between the extraction valve 13 and the condenser 5. A steam valve 12 is provided on the steam pipe. During evaporation and concentration, the steam valve 12 needs to be opened to allow steam to enter the condenser 5.

[0024] The workflow of this solution is as follows: During use, add 2-10 times the amount of solvent (depending on the process) to the extraction tank 6. After soaking, the liquid in the extraction tank 6 is heated by steam through the jacket, causing it to boil. Open the extraction valve 13. Depending on the boiling point of each solvent, the lower boiling point components in the extraction tank 6 will boil first, turning into steam. This steam is then condensed by the condenser 5 and cooled to the separator 3. Whether to reflux or discharge can be determined based on the process conditions. The separator 3 utilizes the density difference between oil and water to separate the layers, thus obtaining volatile oil. After the steam extraction is completed, open the drain valve 14 and the liquid valve 15 (for external circulation). The liquid is pumped by the liquid pump 11, passed through the filter 8, and then lifted to the evaporator 2. Open the steam valve 12 and heat the heating tank 1. The solvent in the evaporator 2 evaporates, is condensed by the condenser 5, and then enters the separator 3, where it is either separated and discharged or collected in the collection tank 7. During this process, the vacuum pump 10 and vacuum valve 22 can be opened simultaneously for external circulation vacuum decompression concentration (especially for water-extracting solutions) to accelerate the concentration speed. Depending on the process requirements, the liquid return valve 17 can also be opened to set the liquid return, thereby achieving higher production quality.

[0025] The above-described preferred embodiments of the present invention are provided for guidance, but it will be apparent to those skilled in the art that such embodiments are provided merely by way of example. Many modifications, alterations, and alternatives will arise in the mind and spirit of the present invention without departing from its intent. It should be understood that various alternatives to the embodiments of the present invention described herein may be employed in the practice of the present invention. The appended claims are intended to define the scope of protection of the present invention and therefore cover the modular compositions, equivalents, or alternatives within the scope of these claims.

Claims

1. A hot reflux traditional Chinese medicine extraction system, characterized in that, The extraction tank (6) is connected in sequence to an extraction valve (13), a condenser (5), a separator (3) and a collection tank (7) via pipes at the top of the extraction tank (6). A vacuum pump (10) is connected in sequence to the top of the collection tank (7) via pipes at the top of the extraction tank (6). A drain valve (14), a filter (8), a liquid pump (11), a liquid valve (15) and an evaporator (2) are connected in sequence to the bottom of the extraction tank (6) via pipes at the bottom of the extraction tank (6). The top of the evaporator (2) is connected to the pipe between the extraction valve (13) and the condenser (5) via an evaporation pipe (4). A steam valve (12) is provided on the steam pipe. A heating tank (1) is connected to the lower part of the evaporator (2). The heating tank (1) is used to heat the liquid in the evaporator (2).

2. The hot reflux traditional Chinese medicine extraction system according to claim 1, characterized in that: A branch pipe (16) is provided on the pipeline between the liquid valve (15) and the liquid pump (11). The branch pipe (16) is connected to the reflux inlet (18) of the extraction tank (6). A liquid reflux valve (17) is also provided on the branch pipe (16).

3. The hot reflux traditional Chinese medicine extraction system according to claim 1, characterized in that: A pipe sight glass (9) is fixedly installed on the pipe between the filter (8) and the liquid pump (11).

4. The hot reflux traditional Chinese medicine extraction system according to claim 1, characterized in that: The separator (3) is provided with a separation port (19) and a reflux outlet. The reflux outlet is connected to the reflux inlet (18) through a pipe. A distillate reflux valve is also provided on the pipe between the reflux outlet and the reflux inlet (18).

5. The hot reflux traditional Chinese medicine extraction system according to claim 1, characterized in that: A vacuum valve (20) is installed on the pipeline between the liquid collection tank (7) and the vacuum pump (10).

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