A device and process for rapid extraction and purification of silybin

Abstract

The application relates to the technical field of preparation of shuganbin, and discloses a shuganbin rapid extraction and purification device and process.The device comprises a lower jar body, a filter disc, an assembling rod rotatably installed on the filter disc, an extrusion roller for extruding and dispersing raw materials rotatably installed on the assembling rod, and a transmission assembly; after the filter disc is lifted, the assembling rod is docked with the stirring shaft through the clamping assembly, the stirring shaft rotates to drive the assembling rod to rotate synchronously, the transmission assembly drives a plurality of dispersing wheels to rotate, the plurality of dispersing wheels can disperse the raw materials on the filter screen, then the extrusion roller rotates to the raw materials dispersed by rolling, the solution infiltrated in the shuganpi raw materials after filtration can be extruded, the solution most fully combined with the shuganpi raw materials can be fully extracted, the problem that the solution is wasted and the shuganbin cannot be fully extracted due to the direct removal of the solution after filtration is avoided, and the extraction efficiency of the shuganbin is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of silybin preparation technology, specifically to a rapid extraction and purification device and process for silybin. Background Technology

[0002] Silybin is a flavonoid compound extracted and isolated from the fruit of the milk thistle plant (Silybum marianum), a member of the Asteraceae family. The extraction and purification process of silybin involves several key steps: First, the fruit of milk thistle needs to be collected and processed into raw materials suitable for extraction. The processed raw materials are then extracted, typically using a suitable solvent (such as ethanol or methanol) through soaking and stirring to dissolve the silybin from the raw materials. The extracted solution needs to be filtered to remove solid impurities, and then the solvent is removed by evaporation or concentration to obtain a concentrate containing silybin. The concentrate is further purified by column chromatography, crystallization, countercurrent partitioning, and other methods to obtain silybin of higher purity. The purified silybin is dried and packaged as needed for further use or sale.

[0003] Several existing technologies exist for the extraction and purification of silybin, such as patent publication number CN220968751U. The main technical approach involves a motor driving a drive shaft to rotate a stirring rod, which in turn rotates a connecting rod, which in turn rotates a scraper. The scraper eliminates blind spots in the stirring process and prevents dead zones. However, analysis reveals a drawback: the solution remaining in the stirred raw material is partially removed after filtration, resulting in the waste of this solution, which is most fully integrated with the silybin raw material. This leads to insufficient extraction of silybin and a reduced yield. Therefore, this invention provides a simple and ingenious device and process for the rapid extraction and purification of silybin, fully utilizing the solution remaining in the raw material. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a rapid extraction and purification device and process for silybin, thereby solving the technical problem that the solution infiltrated in silybin raw materials cannot be fully utilized after direct removal following filtration.

[0005] The objective of this invention can be achieved through the following technical solutions:

[0006] A rapid extraction and purification device for silymarin includes:

[0007] The lower tank has an upper tank attached to its top. The upper tank is driven to rise and fall by a drive source. The lower tank is connected to the purification tank through a conveying pipe. A stirring shaft is rotatably installed inside the lower tank. The stirring shaft is driven to rotate by a drive source and has several stirring blades.

[0008] A filter disc is slidably installed in the lower tank and located below the stirring shaft. The filter disc is driven to rise and fall by a lifting assembly, and a filter screen is provided on the filter disc.

[0009] An assembly rod is rotatably mounted on a filter disc, and a plurality of dispersing wheels for dispersing raw materials on the filter disc are rotatably mounted on the assembly rod. A compression roller for pressing and dispersing the raw materials is also rotatably mounted on the assembly rod.

[0010] The transmission component is installed inside the assembly rod and is connected to several dispersing wheels. When the lifting component drives the filter disc to rise, the assembly rod connects with the stirring shaft through the locking component. The rotation of the stirring shaft drives the assembly rod to rotate synchronously, and at the same time, the transmission component drives several dispersing wheels to rotate.

[0011] As a further aspect of the present invention: the filter disc is made of magnetic material, the lifting assembly includes a magnetic block and an output source for driving its lifting, the magnetic block is slidably installed on the side wall of the lower tank, and its magnetism is attracted to the magnetism of the filter disc, the output source is fixed on the side wall of the lower tank, and its output end is connected to the magnetic block.

[0012] As a further aspect of the present invention: when the filter disc is located at the lowest point of its movement path, it blocks the feed pipe.

[0013] As a further aspect of the present invention: a plurality of partition blocks are fixed on the assembly rod, and the plurality of partition blocks correspond one-to-one with a plurality of dispersing wheels, wherein the dispersing wheels are located between the partition blocks and the extrusion rollers.

[0014] As a further aspect of the present invention: the transmission assembly includes:

[0015] A fixed shaft is sleeved outside the shaft body, and the two are rotatably connected. The shaft body is fixed at the top of the assembly rod corresponding to the position below the stirring shaft. The engaging assembly is installed inside the shaft body for connecting the shaft body and the stirring shaft. The shaft body passes through a filter screen, and the fixed shaft is fixedly connected to the filter screen.

[0016] The first gear is coaxially fixedly mounted on a fixed shaft and meshes with a second gear rotatably mounted inside an assembly rod. The second gear is connected to several disassembly wheels via a belt.

[0017] As a further aspect of the present invention: the engaging assembly includes a movable rod, with two locking blocks fixed at each end of the movable rod, and the locking block at the top engaging with a locking groove provided at the bottom of the stirring shaft, and the locking block at the bottom slidably installed in a limiting cavity provided in the shaft body, and the locking block at the bottom of the movable rod being connected to the bottom wall of the limiting cavity through an elastic element, and when the elastic element is in a free state, the top surface of the locking block at the top of the movable rod is higher than the top surface of the shaft body.

[0018] As a further aspect of the present invention: the number of filter discs is two, and the lower filter disc is connected to the upper filter disc via a docking shaft. The docking shaft is a telescopic structure. When the upper filter disc is at the lowest point of its movement path, it is in contact with the lower filter disc. The assembly rod on the upper filter disc is connected to the stirring shaft via a locking assembly. When the upper filter disc rises, there is a gap between it and the lower filter disc.

[0019] A rapid extraction and purification process for silybin, wherein the process is applied to the rapid extraction and purification apparatus for silybin as described above, and the process includes the following steps:

[0020] Step S1: After the drive source is started to drive the upper tank to rise, the upper tank and the lower tank are separated. The crushed silymarin raw material is put into the lower tank and solvent is added to the lower tank. Then the drive source drives the upper tank to descend and the upper tank and the lower tank are sealed.

[0021] Step S2: Start the drive source to drive the stirring shaft to rotate, and stir the solution through several stirring blades on the stirring shaft;

[0022] Step S3: Start the lifting assembly to drive the filter disc to rise. During this process, the filter screen intercepts raw materials.

[0023] Step S4: When the filter disc rises to the highest point of its moving path, the assembly rod is connected to the stirring shaft by the locking component. The stirring shaft rotates and drives the assembly rod to rotate synchronously. At the same time, the transmission component drives several dispersing wheels to rotate. When the stirring shaft rotates, the several dispersing wheels can disperse the raw materials on the filter screen. Then the extrusion roller rotates to this point to crush the dispersed raw materials. The extruded solution flows down through the filter screen.

[0024] Step S5: The solution below the filter screen is fed into the purification tank through the feed pipe for purification.

[0025] The beneficial effects of this invention are:

[0026] (1) In this invention, the filter disc is driven to rise to the highest point of its movement path by the lifting component. At this time, the assembly rod is connected to the stirring shaft by the locking component. The stirring shaft rotates and drives the assembly rod to rotate synchronously. At the same time, the transmission component drives several dispersing wheels to rotate. When the stirring shaft rotates, the several dispersing wheels can disperse the raw materials on the filter screen. Then the extrusion roller rotates to this point to crush the dispersed raw materials. The extruded solution flows down through the filter screen. It can realize the solution soaked in the milk thistle raw material after filtration, and fully extract the part of the solution that is most fully integrated with the milk thistle raw material. It avoids the problem of not being able to fully extract silybin by directly removing this part of the solution after filtration. It greatly improves the extraction efficiency of silybin.

[0027] (2) In this invention, after the filter plate rises, the feed pipe can be connected to the lower tank. Then, when the opening and closing valve on the feed pipe is opened, the feed pipe can transport the material below the filter screen in the lower tank into the purification tank. The feed pipe is completely free of silymarin raw materials.

[0028] (3) In this invention, two filter discs are arranged at the top and bottom. When the filter disc at the top rotates synchronously with the stirring shaft, it drives the filter disc at the bottom to rotate synchronously through the docking shaft. The two shafts at the top and bottom rotate synchronously, which can drive the two assembly rods to rotate synchronously, so that the raw materials in the two filter discs can be fully squeezed out of the solution. The filter screens on the two filter discs are selected with different sizes to perform graded filtration and squeezing of the raw materials. Attached Figure Description

[0029] The invention will now be further described with reference to the accompanying drawings.

[0030] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0031] Figure 2 This is a schematic diagram of the filter disc in this invention;

[0032] Figure 3 This is a schematic diagram of the assembly rod and the stirring shaft in the docking state in this invention;

[0033] Figure 4 This is a schematic diagram of the structure of the stirring shaft in this invention;

[0034] Figure 5 In this invention Figure 4 A magnified schematic diagram of the structure at point A;

[0035] Figure 6 This is a schematic diagram of the transmission component in this invention;

[0036] Figure 7 This is a schematic diagram of the docking shaft in this invention.

[0037] In the diagram: 1. Lower tank; 2. Upper tank; 3. Drive source; 4. Feed pipe; 5. Stirring shaft; 6. Filter disc; 7. Filter screen; 8. Transmission assembly; 801. Fixed shaft; 802. First gear; 803. Second gear; 9. Engaging assembly; 901. Movable rod; 902. Locking block; 903. Locking groove; 904. Limiting cavity; 905. Elastic element; 10. Assembly rod; 11. Extrusion roller; 12. Dispersing wheel; 13. Partition block; 14. Shaft; 15. Connecting shaft; 16. Magnetic block; 17. Output source. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] Please see Figures 1-7 As shown, the present invention is a rapid extraction and purification device for silymarin, comprising:

[0040] The lower tank 1 has an upper tank 2 attached to its top. The upper tank 2 is driven to rise and fall by a drive source 3. The lower tank 1 is connected to the purification tank through a conveying pipe 4. A stirring shaft 5 is rotatably installed inside the lower tank 1. The stirring shaft 5 is driven to rotate by the drive source 3 and has several stirring blades.

[0041] The filter disc 6 is slidably installed inside the lower tank 1 and located below the stirring shaft 5. The filter disc 6 is driven to rise and fall by the lifting assembly, and a filter screen 7 is provided on the filter disc 6.

[0042] An assembly rod 10 is rotatably mounted on a filter disc 6, and a plurality of dispersing wheels 12 for dispersing raw materials on a filter screen 7 are rotatably mounted on the assembly rod 10. A compression roller 11 for pressing and dispersing the raw materials is also rotatably mounted on the assembly rod 10.

[0043] The transmission component 8 is installed inside the assembly rod 10 and is connected to several dispersing wheels 12. When the lifting component drives the filter disc 6 to rise, the assembly rod 10 connects with the stirring shaft 5 through the locking component 9. Then, the rotation of the stirring shaft 5 drives the assembly rod 10 to rotate synchronously, and at the same time, the transmission component 8 drives several dispersing wheels 12 to rotate.

[0044] In one embodiment, the driving source 3 includes a lifting drive component, which can be a hydraulic cylinder, a pneumatic cylinder, or other mechanisms capable of linear motion. This embodiment does not impose specific limitations on this component. The driving source 3 also includes a rotary drive component, which can be a motor assembly, a gear assembly driven by a motor, or a pulley assembly, as long as it enables the stirring shaft 5 to rotate. This embodiment does not impose specific limitations on this component. An on / off valve is provided on the feed pipe 4. The purification tank contains a purification assembly including a chromatography column. The purification assembly, the on / off valve, and the driving source 3 are all existing technologies. This application does not improve upon them; therefore, it is not necessary to disclose their specific mechanical and circuit structures, and this does not affect the completeness of this application.

[0045] In practical application, after the upper tank 2 is driven to rise by the drive source 3, the upper tank 2 separates from the lower tank 1. The crushed silymarin raw material is then put into the lower tank 1, and solvent is added to the lower tank 1. Subsequently, the upper tank 2 is driven to descend by the drive source 3, and the upper tank 2 is then sealed with the lower tank 1. Then, the drive source 3 is activated to drive the stirring shaft 5 to rotate, and the solution is stirred by several stirring blades on the stirring shaft 5. After a period of time, the lifting assembly is activated to drive the filter disc 6 to rise. During this process, the filter screen 7 intercepts the raw material. When the filter disc 6 rises to the highest point of its movement path, it engages... Component 9 connects the assembly rod 10 to the stirring shaft 5. When the stirring shaft 5 rotates, it drives the assembly rod 10 to rotate synchronously. At the same time, the transmission component 8 drives several dispersing wheels 12 to rotate. When the stirring shaft 5 rotates, the dispersing wheels 12 can disperse the raw materials on the filter screen 7. Then, the extrusion roller 11 rotates to this position to crush the dispersed raw materials. The extruded solution flows down through the filter screen 7, which can realize the extraction of the solution that is soaked in the milk thistle raw materials after filtration. This fully extracts the solution that is most fully integrated with the milk thistle raw materials. Then, the solution below the filter screen 7 is fed into the purification tank through the feed pipe 4 for purification treatment.

[0046] like Figures 1-3 As shown, in a preferred embodiment of the present invention, the filter disc 6 is made of magnetic material. The lifting assembly includes a magnetic block 16 and an output source 17 for driving its lifting. The magnetic block 16 is slidably installed on the side wall of the lower tank 1, and its magnetism is attracted to the magnetism of the filter disc 6. The output source 17 is fixed on the side wall of the lower tank 1, and its output end is connected to the magnetic block 16.

[0047] In one embodiment, the output source 17 may be a hydraulic cylinder, a pneumatic cylinder, or other mechanism capable of linear motion. This embodiment does not impose any specific limitations on this.

[0048] In practical application, after the solution is stirred for a period of time, the output source 17 drives the magnetic block 16 to rise. Under the action of magnetic attraction, the filter plate 6 rises. When it reaches the highest point of its movement path, the locking component 9 enables the assembly rod 10 to dock with the stirring shaft 5.

[0049] like Figures 2-3 As shown, in a preferred embodiment of the present invention, when the filter disc 6 is at the lowest point of its moving path, it blocks the feed pipe 4. In actual application, after the filter disc 6 rises, the feed pipe 4 can connect with the lower tank 1. Then, when the opening and closing valve on the feed pipe 4 is opened, the feed pipe 4 can transport the material below the filter screen 7 in the lower tank 1 into the purification tank, and the feed pipe 4 is completely free of silymarin raw materials.

[0050] like Figures 2-6As shown, in a preferred embodiment of the present invention, a plurality of partition blocks 13 are fixed on the assembly rod 10, and the plurality of partition blocks 13 correspond one-to-one with a plurality of dispersing wheels 12, wherein the dispersing wheels 12 are located between the partition blocks 13 and the extrusion rollers 11.

[0051] In practical application, for the raw materials on the filter screen 7, the partition block 13 first rotates to this location to partition the raw materials, which can ensure that each dispersing wheel 12 contacts the raw materials. Then the dispersing wheel 12 rotates to this location and rotates on its own to disperse the raw materials in each area. Finally, the extrusion roller 11 rotates to this location to crush the dispersed raw materials and fully squeeze out the solution that is impregnated in the raw materials.

[0052] like Figures 2-7 As shown, in a preferred embodiment of the present invention, the transmission assembly 8 includes:

[0053] A fixed shaft 801 is sleeved on the outside of the shaft body 14, and the two are rotatably connected. The shaft body 14 is fixed at the top of the assembly rod 10 at a position corresponding to the lower part of the stirring shaft 5. The engaging assembly 9 is installed inside the shaft body 14 for connecting the shaft body 14 and the stirring shaft 5. The shaft body 14 passes through the filter screen 7, and the fixed shaft 801 is fixedly connected to the filter screen 7.

[0054] The first gear 802 is coaxially fixedly mounted on the fixed shaft 801 and meshes with the second gear 803 rotatably mounted in the assembly rod 10. The second gear 803 is connected to several dispersing wheels 12 via belts.

[0055] In practical application, when the filter disc 6 rises to the highest point of its movement path, the shaft 14 connects with the stirring shaft 5 through the engaging assembly 9, that is, the assembly rod 10 connects with the stirring shaft 5. Subsequently, the stirring shaft 5 rotates, causing the shaft 14 and the assembly rod 10 to rotate synchronously. During this process, the fixed shaft 801 and the first gear 802 remain stationary with the filter screen 7. The assembly rod 10 drives the second gear 803 to rotate around the axis of the shaft 14. At the same time, under the meshing transmission, the second gear 803 rotates on its own axis, which can drive several dispersing wheels 12 to rotate through the belt. The several dispersing wheels 12 rotate simultaneously with the assembly rod 10 around the axis of the shaft 14, thus realizing the dispersing treatment of the raw materials on the filter screen 7.

[0056] like Figures 2-7As shown, in a preferred embodiment of the present invention, the engaging assembly 9 includes a movable rod 901, with two locking blocks 902 fixed at both ends of the movable rod 901. The locking block 902 at the top engages with the locking groove 903 located at the bottom of the stirring shaft 5, and the locking block 902 at the bottom is slidably installed in the limiting cavity 904 located within the shaft body 14. The locking block 902 at the bottom of the movable rod 901 is connected to the bottom wall of the limiting cavity 904 via an elastic member 905. When the elastic member 905 is in a free state, the top surface of the locking block 902 at the top of the movable rod 901 is higher than the top surface of the shaft body 14.

[0057] In one embodiment, the elastic element 905 can be selected as follows: Figure 7 The spring shown can be replaced by other elastic components, such as silicone pillars, spring sheets, etc., which are not specifically limited in this embodiment.

[0058] In practical application, when the filter disc 6 rises to the highest point of its movement path, the top surface of the shaft 14 contacts the bottom surface of the stirring shaft 5. If the slot 903 is misaligned with the top locking block 902, the locking block 902 is pushed down and compressed by the movable rod 901 and the bottom locking block 902 until the slot 903 rotates to align with the top locking block 902. The elastic force causes the top locking block 902 to rise and engage with the slot 903, completing the engagement of the shaft 14 and the stirring shaft 5, that is, the engagement of the assembly rod 10 and the stirring shaft 5. Then, the rotation of the stirring shaft 5 can drive the assembly rod 10 to rotate around the axis of the stirring shaft 5.

[0059] like Figures 2-7 As shown, in a preferred embodiment of the present invention, there are two filter discs 6, and the lower filter disc 6 is connected to the upper filter disc 6 via a docking shaft 15. The docking shaft 15 is a telescopic structure. When the upper filter disc 6 is at the lowest point of its movement path, it is in contact with the lower filter disc 6. The assembly rod 10 on the upper filter disc 6 is connected to the stirring shaft 5 via a locking assembly 9. When the upper filter disc 6 rises, there is a gap between it and the lower filter disc 6.

[0060] The filter disc 6 located below is also equipped with a filter screen 7, an assembly rod 10, a squeezing roller 11, a dispersing wheel 12, a transmission assembly 8, and a shaft 14, and the docking shaft 15 is used to connect the two shafts 14.

[0061] In one embodiment, the telescopic structure is a structure composed of nested multi-stage pipes. In practical applications, a gear and rack structure or an electric telescopic rod structure can also be used. This embodiment does not impose any specific limitations on this.

[0062] In practical application, when the upper filter plate 6 rotates synchronously with the stirring shaft 5, it drives the lower filter plate 6 to rotate synchronously through the docking shaft 15. The two shafts 14 rotate synchronously, which can drive the two assembly rods 10 to rotate synchronously, so that the raw materials in the two filter plates 6 can be fully squeezed out of the solution. Specifically, the filter screens 7 on the two filter plates 6 can be selected to be of different sizes to perform graded filtration and squeezing of the raw materials.

[0063] Please see Figures 1-7 As shown, this invention provides a rapid extraction and purification process for silybin. The process is applied to the rapid extraction and purification apparatus for silybin described in the above embodiments, and includes the following steps:

[0064] Step S1: After the drive source 3 is started to drive the upper tank 2 to rise, the upper tank 2 separates from the lower tank 1. The crushed silymarin raw material is put into the lower tank 1, and solvent is added to the lower tank 1. Then the drive source 3 drives the upper tank 2 to descend, and then the upper tank 2 and the lower tank 1 are sealed.

[0065] Step S2: Start the drive source 3 to drive the stirring shaft 5 to rotate, and stir the solution through several stirring blades on the stirring shaft 5;

[0066] Step S3: Start the lifting assembly to drive the filter disc 6 to rise. During this process, the filter screen 7 intercepts the raw materials.

[0067] Step S4: When the filter disc 6 rises to the highest point of its moving path, the assembly rod 10 is connected to the stirring shaft 5 by the locking component 9. The stirring shaft 5 rotates and drives the assembly rod 10 to rotate synchronously. At the same time, the transmission component 8 drives several dispersing wheels 12 to rotate. When the stirring shaft 5 rotates, the several dispersing wheels 12 can disperse the raw materials on the filter screen 7. Then the extrusion roller 11 rotates to this point to crush the dispersed raw materials. The extruded solution flows down through the filter screen 7.

[0068] Step S5: The solution below the filter screen 7 is fed into the purification tank through the feed pipe 4 for purification.

[0069] Working principle of the invention: The above embodiments of the invention provide a rapid extraction and purification device and process for silybin. The driving source 3 drives the stirring shaft 5 to rotate and stir the solution. After a period of time, the lifting component is activated to drive the filter plate 6 to rise to the highest point of its moving path. At this time, the engaging component 9 connects the assembly rod 10 with the stirring shaft 5. The rotation of the stirring shaft 5 drives the assembly rod 10 to rotate synchronously. At the same time, the transmission component 8 drives several dispersing wheels 12 to rotate. When the stirring shaft 5 rotates, the several dispersing wheels 12 can disperse the raw materials on the filter screen 7. Then, the extrusion roller 11 rotates to this point to crush the dispersed raw materials. The extruded solution flows down through the filter screen 7, which can realize the extraction of the solution that is soaked in the milk thistle raw material after filtration. This fully extracts the part of the solution that is most fully integrated with the milk thistle raw material, avoiding the waste caused by directly removing this part of the solution after filtration, which would result in the inability to fully extract silybin. This greatly improves the extraction efficiency of silybin.

[0070] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the claims of this invention should still fall within the patent coverage of this invention.

Claims

1. A rapid extraction and purification device for silymarin, characterized in that, include: The lower tank (1) is attached to the top of the upper tank (2). The upper tank (2) is driven to rise and fall by the drive source (3). The lower tank (1) is connected to the purification tank through the conveying pipe (4). A stirring shaft (5) is rotatably installed inside the lower tank (1). The stirring shaft (5) is driven to rotate by the drive source (3), and several stirring blades are provided on the stirring shaft (5). The filter disc (6) is slidably installed inside the lower tank (1) and located below the stirring shaft (5). The filter disc (6) is driven to rise and fall by the lifting assembly. A filter screen (7) is provided on the filter disc (6). An assembly rod (10) is rotatably mounted on a filter disc (6), and a plurality of dispersing wheels (12) for dispersing raw materials on a filter screen (7) are rotatably mounted thereon. An extrusion roller (11) for extruding and dispersing the raw materials is rotatably mounted on the assembly rod (10); and The transmission component (8) is installed inside the assembly rod (10) and is connected to several dispersing wheels (12). When the lifting component drives the filter disc (6) to rise, the assembly rod (10) is connected to the stirring shaft (5) through the locking component (9). The stirring shaft (5) rotates, causing the assembly rod (10) to rotate synchronously. At the same time, the transmission component (8) drives several dispersing wheels (12) to rotate. The assembly rod (10) is fixed with several partition blocks (13), and the partition blocks (13) correspond one-to-one with several dispersing wheels (12). The dispersing wheels (12) are located between the partition blocks (13) and the extrusion rollers (11). The transmission assembly (8) includes: A fixed shaft (801) is sleeved on the outside of the shaft body (14) and the two are rotatably connected. The shaft body (14) is fixed at the top of the assembly rod (10) at a position corresponding to the bottom of the stirring shaft (5). The engaging assembly (9) is installed inside the shaft body (14) for connecting the shaft body (14) and the stirring shaft (5). The shaft body (14) is arranged through the filter screen (7), and the fixed shaft (801) is fixedly connected to the filter screen (7). The first gear (802) is coaxially fixedly mounted on the fixed shaft (801) and meshes with the second gear (803) rotatably mounted in the assembly rod (10). The second gear (803) is connected to several disassembly wheels (12) via belts. The engaging assembly (9) includes a movable rod (901), with two locking blocks (902) fixed at both ends of the movable rod (901). The locking block (902) at the top engages with the locking groove (903) at the bottom of the stirring shaft (5), and the locking block (902) at the bottom slides in the limiting cavity (904) in the shaft body (14). The locking block (902) at the bottom of the movable rod (901) is connected to the bottom wall of the limiting cavity (904) through an elastic element (905). When the elastic element (905) is in a free state, the top surface of the locking block (902) at the top of the movable rod (901) is higher than the top surface of the shaft body (14). There are two filter discs (6), and the lower filter disc (6) is connected to the upper filter disc (6) via a docking shaft (15). The docking shaft (15) is a telescopic structure. When the upper filter disc (6) is at the lowest point of its movement path, it is in contact with the lower filter disc (6). The assembly rod (10) on the upper filter disc (6) is connected to the stirring shaft (5) via a locking assembly (9). When the upper filter disc (6) rises, there is a gap between it and the lower filter disc (6).

2. The rapid extraction and purification device for silymarin according to claim 1, characterized in that, The filter disc (6) is made of magnetic material. The lifting assembly includes a magnetic block (16) and an output source (17) that drives it to lift. The magnetic block (16) is slidably installed on the side wall of the lower tank (1) and its magnetism is attracted to the magnetism of the filter disc (6). The output source (17) is fixed on the side wall of the lower tank (1) and its output end is connected to the magnetic block (16).

3. The rapid extraction and purification device for silymarin according to claim 1, characterized in that, When the filter disc (6) is at the lowest point of its movement path, it blocks the feed pipe (4).

4. A rapid extraction and purification process for silymarin, characterized in that, The process is applied to the rapid extraction and purification apparatus for silybin as described in any one of claims 1-3, and the process includes the following steps: Step S1: After the drive source (3) drives the upper tank (2) to rise, the upper tank (2) separates from the lower tank (1), and the crushed silymarin raw material is put into the lower tank (1). Solvent is added to the lower tank (1), and then the drive source (3) drives the upper tank (2) to fall, and then the upper tank (2) and the lower tank (1) are sealed. Step S2: Start the drive source (3) to drive the stirring shaft (5) to rotate, and stir the solution through several stirring blades on the stirring shaft (5); Step S3: Start the lifting assembly to drive the filter disc (6) to rise. During this process, the filter screen (7) intercepts the raw materials. Step S4: When the filter disc (6) rises to the highest point of its moving path, the assembly rod (10) is connected to the stirring shaft (5) by the locking component (9). The stirring shaft (5) rotates and drives the assembly rod (10) to rotate synchronously. At the same time, the transmission component (8) drives several dispersing wheels (12) to rotate. When the stirring shaft (5) rotates, the several dispersing wheels (12) can disperse the raw materials on the filter screen (7). Then the extrusion roller (11) rotates to this point to crush the dispersed raw materials. The extruded solution flows down through the filter screen (7). Step S5: The solution below the filter screen (7) is fed into the purification tank through the feed pipe (4) for purification.

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