Extraction device for purifying pesticide in traditional Chinese medicinal materials

Abstract

The utility model relates to the technical field of pesticide purification in traditional Chinese medicinal materials, in particular to an extraction device for purifying pesticide in traditional Chinese medicinal materials, which comprises a rack and a purification extraction mechanism mounted on the rack. The purification extraction mechanism is composed of a liquid storage tank, a booster pump, a buffer gas tank, a separation assembly and a recovery bottle, the separation assembly comprises a liquid inlet, a liquid outlet and a plurality of separation columns, the liquid outlet is connected with the recovery bottle through a flexible corrugated pipe, the number of the separation columns is adjustable, the separation columns are provided with sealing parts, and the rack is further provided with a temperature control heater and a guide sliding groove to assist operation. The number of the separation columns can be flexibly adjusted according to the liquid amount of traditional Chinese medicine, efficient extraction and layering are achieved by combining high pressure and gradient heating, and the pesticide purification effect and the device applicability are remarkably improved.

Description

Technical Field

[0001] This utility model belongs to the field of traditional Chinese medicine processing and purification technology, specifically an extraction device for purifying pesticides in traditional Chinese medicine. Background Technology

[0002] As the cornerstone of the traditional Chinese medicine industry, the quality of medicinal herbs directly affects the safety and efficacy of medicines. However, in the cultivation of medicinal herbs, the widespread use of pesticides to control pests and diseases and ensure yield has led to an increasingly serious problem of pesticide residues in medicinal herbs. Pesticide residues can not only alter the chemical composition of medicinal herbs and affect their efficacy, but also seriously threaten the health of consumers. Currently, there are many shortcomings in the extraction methods and equipment for purifying pesticides from medicinal herbs. Traditional solvent extraction methods usually require the use of large amounts of organic solvents, which are not only costly but also prone to secondary pollution. At the same time, organic solvents may dissolve some of the effective components of medicinal herbs during the extraction process, resulting in waste of medicinal resources, and it is difficult to accurately extract and purify only pesticide residues. Although solid-phase extraction technology improves the selectivity of extraction to some extent, this method is cumbersome to operate, requiring professional technicians to perform complex pretreatment and elution steps, demanding high skill levels from operators, and the equipment is complex, which is not conducive to large-scale promotion and application. Furthermore, simple physical separation methods, such as filtration and centrifugation, have limited effectiveness in purifying pesticide residues in Chinese medicinal herbs. They cannot effectively remove low concentrations and complex types of pesticide residues, and these methods often only process herbs in a single form, showing poor adaptability to herbs of different textures and processing methods. Given this situation, it is urgent to develop a highly efficient, environmentally friendly, easy-to-operate, and adaptable extraction device specifically designed for pesticide purification in Chinese medicinal herbs. This device would accurately and efficiently remove pesticide residues without affecting the effective components of the herbs, thereby improving their quality and ensuring the healthy development of the traditional Chinese medicine industry. Utility Model Content

[0003] The purpose of this utility model is to provide an extraction device for purifying pesticides in traditional Chinese medicinal materials, thereby solving the problems mentioned in the background art. To achieve the above objective, this utility model provides the following technical solution: An extraction device for purifying pesticides in traditional Chinese medicinal materials, comprising a frame, on which a purification and extraction mechanism is installed. The purification and extraction mechanism includes a storage tank, a booster pump, a buffer gas tank, a separation component, and a recovery bottle, which are connected in sequence by pipelines. A solenoid valve is installed on the pipeline connected to the top of the buffer gas tank. A flow regulator is installed on the pipeline connecting the separation component and the recovery bottle. A temperature-controlled heater is installed on the side of the frame near the separation component. The separation component includes an inlet connected to the output end of the solenoid valve via a pipeline. An outlet is provided at the bottom of the inlet, which is connected to the flow regulator via a pipeline. The outlet and the inlet are connected... The system has multiple separation columns. After the herbal liquid is added to the separation assembly, the buffer gas tank is opened via a solenoid valve. The buffer gas tank is pre-filled with inert gas. A booster pump pressurizes the solvent and introduces it into the separation assembly. At the same time, a temperature-controlled heater is activated to heat the separation column. Under high pressure and gradient temperature, the herbal liquid in the separation column quickly completes solvent extraction and separates into layers. The extract containing pesticide components is located in the upper layer, and the purified herbal liquid is located in the lower layer. After the lower layer of herbal liquid has completely flowed into the recovery bottle, the extraction is stopped, the separation column is removed, and the extract containing pesticide components is exported. The flow regulator controls the liquid flow rate in real time to ensure that the separation process is within the optimal flow rate range, thereby improving the extraction efficiency.

[0004] The outlet includes a receiving plate that connects to the bottom of the separation column. A flexible corrugated tube is installed at the bottom of the receiving plate. The end of the flexible corrugated tube away from the receiving plate is connected to a recovery bottle. The flexible corrugated tube allows the outlet to have a certain degree of flexibility while ensuring normal liquid flow, so as to meet the needs of adaptive adjustment for different volumes of traditional Chinese medicine liquid.

[0005] The frame is fixed with a guide groove near the separation component. A top plate is slidably connected in the guide groove. The end of the top plate away from the guide groove is fixed to the receiving plate of the liquid outlet. The bottom is elastically connected to the frame through a return spring. A pressing handle is fixed at the center of the upper surface of the top plate. In the separation component, pressing the pressing handle can cause the top plate to move down, and the receiving plate of the liquid outlet will move down accordingly. The flexible corrugated tube will contract, thereby realizing the separation of the separation column and the separation component. The number of separation columns can be adjusted according to the actual amount of Chinese medicine liquid processed. After the adjustment is completed, the pressing handle is released. Under the action of the return spring, the top plate returns to its original position, and the liquid outlet also returns to its original position, reconnecting the separation column between the liquid inlet and the liquid outlet.

[0006] The multiple separation columns are evenly distributed in a ring around the axis of the liquid outlet. The separation columns extend outward near the port to form a stepped sealing part. The separation columns with sealing parts are not only easy to handle and install, but also have higher sealing performance when connected with the liquid inlet and outlet, reducing the risk of leakage and ensuring the stability of the separation assembly.

[0007] The bottom end of the guide chute is an open slot, while the top end is fixed with a limiting block that contacts the top plate. When processing a small amount of traditional Chinese medicine liquid, the number of separation columns is reduced, the load-bearing weight of the outlet is also reduced, and the displacement of the outlet after reset under the action of the reset spring is increased. The limiting block at the top of the guide chute provides a top limit for the top plate to prevent it from rebounding excessively.

[0008] The heating surface of the temperature-controlled heater is suspended by a support block on the frame and has an arc-shaped concave structure. It is close to the outer wall of the separation column and away from the flexible corrugated tube part of the liquid outlet. The arc-shaped concave structure and its overall position optimize the heating effect on the separation column and ensure uniform temperature distribution.

[0009] Compared with the prior art, the beneficial effects of this utility model are: the structure of the separation component has been improved, and the number of separation columns can be flexibly disassembled and adjusted to ensure that the Chinese medicine liquid can be fully filled in the separation column during the extraction process, so that the heating and pressurization effects can be effectively exerted, and the degree of pesticide purification in different amounts of Chinese medicine liquid can be guaranteed, significantly improving the applicability and ease of operation of the device. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0011] Figure 2 This is a schematic diagram of the internal structure of the separation component of this utility model;

[0012] Figure 3 This is a schematic diagram of the liquid outlet and flexible corrugated pipe of this utility model;

[0013] Figure 4 This is a schematic diagram of the guide groove and top plate of this utility model.

[0014] The components include: 1. Frame; 2. Purification and extraction mechanism; 3. Storage tank; 4. Booster pump; 5. Buffer gas tank; 6. Separation assembly; 7. Recovery bottle; 8. Solenoid valve one; 9. Flow regulator; 10. Temperature control heater; 11. Inlet; 12. Outlet; 13. Separation column; 14. Receiving plate; 15. Flexible corrugated pipe; 16. Solenoid valve two; 17. Guide chute; 18. Top plate; 19. Return spring; 20. Sealing part; 21. Limiting block; 22. Support block; 23. Press handle. Detailed Implementation

[0015] 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.

[0016] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The utility model will be further described in detail below with reference to the accompanying drawings.

[0017] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. Example 1

[0018] This utility model provides an extraction device for purifying pesticides in traditional Chinese medicinal materials, combined with the attached... Figure 1 To be continued Figure 4 The specific embodiments of this utility model will be described in detail below. For example... Figure 1 As shown, the device includes a frame 1 on which a purification and extraction mechanism 2 is mounted. The purification and extraction mechanism 2 consists of a storage tank 3, a booster pump 4, a buffer gas tank 5, a separation component 6, and a recovery bottle 7 connected sequentially via pipelines. A solenoid valve 8 is installed on the pipeline connected to the top of the buffer gas tank 5, while a flow regulator 9 is located on the pipeline between the separation component 6 and the recovery bottle 7. A temperature-controlled heater 10 is fixed to the side of the frame 1 near the separation component 6. Its heating surface is suspended by a support block 22 and has an arc-shaped concave structure, close to the outer wall of the separation column 13 and away from the flexible corrugated pipe 15, thereby optimizing the heating effect on the separation column 13.

[0019] like Figure 2As shown, the separation assembly 6 includes an inlet 11, an outlet 12, and multiple separation columns 13. The inlet 11 is connected to the output terminal of the solenoid valve 16 via a pipeline, while the outlet 12 is connected to the flow regulator 9 via a pipeline. The separation columns 13 are located between the inlet 11 and the outlet 12, and are evenly distributed in a ring around the axis of the outlet 12. The separation columns 13 extend outward near the port to form a stepped sealing part 20. This design not only facilitates the removal and installation of the separation columns 13, but also improves the sealing performance when connected to the inlet 11 and the outlet 12, reduces the risk of leakage, and ensures the stability of the separation assembly 6.

[0020] like Figure 3 As shown, the structure of the outlet 12 includes a receiving plate 14 and a flexible corrugated tube 15. The receiving plate 14 is connected to the bottom end of the separation column 13, and the flexible corrugated tube 15 is installed at the bottom. The end of the flexible corrugated tube 15 away from the receiving plate 14 is connected to the recovery bottle 7. The flexible corrugated tube 15 allows the outlet 12 to have a certain degree of flexibility while ensuring normal liquid flow, so as to adapt to the needs of different Chinese medicine liquid volumes. Example 2

[0021] like Figure 4 As shown, the guide chute 17 is fixed to the side of the frame 1 near the separation component 6. The top plate 18 is slidably connected in the guide chute 17. The end of the top plate 18 away from the guide chute 17 is fixed to the receiving plate 14 of the outlet 12. The bottom is elastically connected to the frame 1 via a return spring 19. The outlet 12 and the receiving plate 14 are detachable. A pressing handle 23 is fixed at the center of the upper surface of the top plate 18. By pressing the pressing handle 23, the top plate 18 can be moved down, causing the receiving plate 14 of the outlet 12 to move down as well. The flexible bellows 15 then contracts, thereby separating the separation column 13 from the separation component 6. After adjusting the number of separation columns 13 according to the actual amount of Chinese medicine liquid being processed, the pressing handle 23 is released. Under the action of the return spring 19, the top plate 18 returns to its original position, and the outlet 12 also returns to its original position, reconnecting the separation column 13 between the inlet 11 and the outlet 12. The bottom end of the guide groove 17 is an open slot, and the top end is fixed with a limit block 21. The limit block 21 provides a top limit for the top plate 18 to prevent it from rebounding excessively.

[0022] In actual operation, the herbal liquid to be processed is first added to the storage tank 3. The booster pump 4 is started to pressurize the solvent and introduce it into the buffer gas tank 5. The buffer gas tank 5 is pre-filled with inert gas to ensure stable pressure within the system. Then, the solenoid valve 16 is opened, allowing the solvent in the buffer gas tank 5 to enter the inlet 11 of the separation component 6 and flow into the separation column 13. At the same time, the temperature-controlled heater 10 is started to heat the separation column 13. Under high pressure and gradient temperature, the herbal liquid in the separation column 13 quickly completes solvent extraction and produces stratification. The extract containing pesticide components is located in the upper layer, and the purified herbal liquid is located in the lower layer. The flow regulator 9 controls the liquid flow rate in real time to ensure that the separation process is within the optimal flow rate range, thereby improving extraction efficiency. After the purified herbal liquid in the lower layer has completely flowed into the recovery bottle 7, the extraction is stopped, the separation column 13 is removed, and the extract containing pesticide components is exported.

[0023] To further illustrate the practical application effect of this utility model, the following description is based on a specific scenario. Assuming a batch of Chinese medicinal herbs needs pesticide purification treatment, firstly, select an appropriate number of separation columns 13 according to the type and quantity of the herbs. If the quantity is large, the number of separation columns 13 can be increased; if the quantity is small, pressing the handle 23 will lower the top plate 18, causing the flexible corrugated tube 15 to contract, separating the separation columns 13 from the separation assembly 6, thus reducing the number of separation columns 13. After adjustment, release the handle 23, and the top plate 18 will reset under the action of the return spring 19, and the outlet 12 will also reset, reconnecting the separation columns 13 between the inlet 11 and the outlet 12. After starting the device, the booster pump 4 pressurizes the solvent and introduces it into the buffer tank 5, which then enters the separation assembly 6 through the solenoid valve 16. The temperature-controlled heater 10 heats the separation columns 13, ensuring the medicinal liquid is fully filled in the separation columns 13 and solvent extraction is completed under high pressure and gradient temperature conditions. During this process, the flow regulator 9 adjusts the liquid flow rate in real time to ensure efficient and stable separation. Finally, the purified herbal liquid flows into the recovery bottle 7, while the extract containing pesticide components is exported for further processing.

[0024] As can be seen from the above embodiments, the extraction device for purifying pesticides in Chinese medicinal materials provided by this utility model has significant advantages. The improved structure of the separation component 6 allows for flexible disassembly and adjustment of the number of separation columns 13, ensuring that the medicinal liquid is fully filled in the separation columns 13 during extraction. This allows for efficient heating and pressurization, guaranteeing the degree of pesticide purification for different amounts of medicinal liquid, and significantly improving the applicability and ease of operation of the device. Furthermore, the flexible corrugated pipe 15 provides the outlet 12 with a certain degree of expansion and contraction, adapting to different amounts of medicinal liquid. The coordinated arrangement of the guide groove 17 and the top plate 18 further enhances the efficiency of installing and disassembling the separation columns 13. The presence of the limiting block 21 effectively prevents excessive rebound of the top plate 18, ensuring the stability of the device's operation. The arc-shaped concave structure and overall positioning of the temperature control heater 10 optimize the heating effect on the separation columns 13, ensuring uniform temperature distribution, thereby further improving extraction efficiency and purification effect. In summary, this utility model demonstrates its ability to meet various needs for pesticide purification in Chinese medicinal materials in practical applications.

[0025] It should be noted that all electrical components mentioned in this article are connected to an external main controller and 220V AC mains power. The main controller can be a conventional known device that can be controlled by a computer or other means. The detailed description of known functions and known components is omitted in the specific implementation of this disclosure. In order to ensure the compatibility of the device, the operating methods used are consistent with the parameters of commercially available instruments.

[0026] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An extraction device for purifying pesticides in traditional Chinese medicinal materials, characterized in that, It comprises a rack (1); The rack (1) is provided with a purification extraction mechanism (2), which comprises a liquid storage tank (3), a booster pump (4), a buffer gas tank (5), a separation assembly (6) and a recovery bottle (7) connected in sequence by pipelines; An electromagnetic valve (8) is installed on the pipeline connected to the top of the buffer gas tank (5), a flow regulator (9) is installed on the pipeline connected between the separation assembly (6) and the recovery bottle (7), and a temperature control heater (10) is installed on one side of the rack (1) close to the separation assembly (6); The separation assembly (6) comprises a liquid inlet (11) connected to the output end of an electromagnetic valve (16) through a pipeline, a liquid outlet (12) provided at the bottom of the liquid inlet (11) and communicated to the flow regulator (9) through a pipeline, and a plurality of separation columns (13) connected between the liquid inlet (11) and the liquid outlet (12).

2. The extraction device for purifying pesticides in traditional Chinese medicinal materials according to claim 1, characterized in that, The liquid outlet (12) comprises a receiving disc (14) butted with the bottom end of the separation column (13), a flexible bellows (15) installed at the bottom of the receiving disc (14), and the recovery bottle (7) communicated with the end of the flexible bellows (15) away from the receiving disc (14).

3. The extraction device for purifying pesticides in traditional Chinese medicinal materials according to claim 1, characterized in that, The rack (1) is fixed with a guide chute (17) on one side close to the separation assembly (6), a top plate (18) is slidably connected in the guide chute (17), the end of the top plate (18) away from the guide chute (17) is fixed with the receiving disc (14) of the liquid outlet (12), the bottom is elastically connected with the rack (1) through a return spring (19), and a pressing handle (23) is fixed at the center of the upper surface of the top plate (18).

4. The extraction device for purifying pesticides in traditional Chinese medicinal materials according to claim 1, characterized in that, A plurality of the separation columns (13) are uniformly distributed in a ring shape with the axis of the liquid outlet (12) as the center, and the separation column (13) expands outward to form a stepped sealing part (20) at the position close to the port.

5. The extraction device for purifying pesticides in traditional Chinese medicinal materials according to claim 3, characterized in that, The bottom end of the guide chute (17) is in the form of an open notch, and the top end is fixed with a limiting block (21).

6. The extraction device for purifying pesticides in traditional Chinese medicinal materials according to claim 1, characterized in that, The heating surface of the temperature control heater (10) is suspended by the support block (22) on the rack (1) and is in the form of an arc-shaped concave structure close to the outer wall of the separation column (13) and away from the flexible bellows (15) part of the liquid outlet (12).

7. The extraction device for purifying pesticides in traditional Chinese medicinal materials according to claim 1, characterized in that, The buffer gas tank (5) is filled with inert gas, the booster pump (4) pressurizes the solvent and introduces it into the separation assembly (6), the temperature control heater (10) heats the separation column (13), and the flow regulator (9) controls the liquid flow rate.

Images