An anthocyanin separation and extraction device

Abstract

The application discloses a cyanine pigment separation and extraction device, and belongs to the technical field of cyanine pigment extraction equipment. The device comprises a smashing and leaching cylinder, a filter cylinder and a distillation and concentration box. A smashing machine is arranged at the upper portion of the smashing and leaching cylinder. A smashing machine is arranged at the upper portion of the smashing and leaching cylinder. A leaching cavity is arranged at the lower portion of the smashing and leaching cylinder. An organic solvent inlet is arranged at the side portion of the leaching cavity. A leaching liquid outlet is arranged at the lower portion of the leaching cavity. The upper portion of the filter cylinder is arranged as a coarse filter part. The lower portion of the filter cylinder is arranged as a fine filter part. The leaching liquid outlet is connected to the upper portion of the coarse filter part. The inner part of the coarse filter part and the inner part of the fine filter part are both provided with filter assemblies and filter membrane brush assemblies. The filter assemblies comprise an inner shell, a plurality of filter columns and a plurality of cylindrical filter membranes. The filter area of the filter membrane is the outer circumferential surface of the cylindrical structure. A plurality of cylindrical filter membrane structures can be arranged on the inner shell to greatly expand the filter area. The technical problem that the filter area of the cyanine pigment solvent extraction equipment is not easy to expand and the filtration efficiency is not convenient to further improve is solved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of anthocyanin extraction equipment, in particular to an anthocyanin separation and extraction device. BACKGROUND

[0002] The extraction methods of anthocyanin include solvent extraction, enzymatic hydrolysis and ultrasonic method. Different methods are suitable for different plant materials and extraction requirements. In actual operation, a suitable extraction method can be selected according to the actual situation, and the extraction steps are operated. The solvent extraction method is a simple and effective anthocyanin extraction method, and common solvents include ethanol, methanol and acetone. The extraction steps are as follows: 1. Prepare plant materials: select plant materials rich in anthocyanin, such as purple cabbage, grape skin, etc. 2. Grind the sample: grind the plant material into powder to increase the extraction effect. 3. Solvent extraction: mix the ground plant material with the solvent, soak for a certain time, and dissolve the anthocyanin in the solvent. 4. Filter the extract: use filter paper or filter membrane to filter out the filter residue in the extract, and obtain pure anthocyanin extract. 5. Concentrate the extract: concentrate the anthocyanin extract by evaporation or rotary evaporator, etc. to obtain anthocyanin extract with higher purity.

[0003] The traditional anthocyanin solvent extraction equipment has the problem of dead-end filtration, which causes the filter membrane to be easily blocked and the filtration efficiency to be lower and lower. To solve the above problems, the existing patent scheme such as CN116059682A moves the sliding block and drives the sliding rail to move, so that the sliding rail pushes the pulley to rise, the pulley drives the connecting frame to rise, the connecting frame drives the connecting block to rise, the connecting block drives the fixed rod to rise, the fixed rod pushes the collection tank to rise, the collection tank drives the filter disc to rise, the filter disc is brushed by the brush on the bottom of the scraper, avoiding the filter disc being blocked, the separation effect is high, the extraction efficiency is improved, and the solid-liquid separation is convenient; the connecting rod drives the gear to rotate, the gear drives the ring gear to rotate, the ring gear drives the extraction tank to rotate, the extraction tank rotates back and forth, the stirring rod in the extraction tank stirs the raw materials, at the same time, the transmission shaft drives the stirring rod to rotate, the extraction efficiency is accelerated, the dissolution of anthocyanin is accelerated, the extraction time is shortened, and the cost is reduced. The utility model discloses CN217909287U for the pulp filtering device for extracting anthocyanin in pitaya, the pulp filtering device for extracting anthocyanin in pitaya of this scheme is set up through the backflush of the pulp, and the filter residue on the filter screen is washed off, avoiding blockage; through the setting of the box extrusion, the pressure of the pulp is increased, and the flow of the pulp is ensured; through the setting of the double-box separation, disassembly and maintenance are facilitated. The above patent scheme realizes the anti-blocking effect by brushing the filter screen or backflushing the filter screen, but in the above scheme, the filter screen surface is single, the area is not easy to expand, and the filtration efficiency is not convenient for further improvement. Therefore, it is necessary to invent an anthocyanin separation and extraction device which is not easy to block and is convenient for expanding the filtration area to improve the filtration effect. SUMMARY

[0004] The application aims at providing a cyanidin separation and extraction device to solve the technical problem that the filtering effect of the traditional cyanidin solvent extraction equipment is realized by brushing the filter screen or backflushing the filter screen, and the filtering area is not easy to expand and the filtering efficiency is not convenient to further improve.

[0005] To achieve the above-mentioned purposes, the technical scheme adopted by the application is as follows:

[0006] The cyanidin separation and extraction device comprises a crushing and leaching cylinder, a filter cylinder and a distillation and concentration box; the upper part of the crushing and leaching cylinder is provided with a crusher, the lower part of the crushing and leaching cylinder is provided with a leaching cavity, the side part of the leaching cavity is provided with an organic solvent inlet, and the lower part of the leaching cavity is provided with a leaching liquid outlet; the upper part of the filter cylinder is provided with a coarse filter part, and the lower part of the filter cylinder is provided with a fine filter part; the leaching liquid outlet is connected to the upper part of the coarse filter part; the inner part of the coarse filter part and the inner part of the fine filter part are both provided with a filter assembly and a filter membrane brush assembly; the filter assembly comprises an inner shell, a plurality of filter columns and a plurality of cylindrical filter membranes; the filter columns are connected to the inner shell; the lower part of the inner shell is provided with a filtrate outlet; the surface of the filter column is provided with a through hole; the cylindrical filter membrane is sleeved on the filter column; the filter membrane brush assembly comprises a moving assembly, a first driving device and a rotating brush; the moving assembly is arranged above the filter assembly; the first driving device is arranged on the moving assembly; the first driving device drives the rotating brush to rotate; the moving assembly drives the rotating brush to brush the outer periphery of the cylindrical filter membrane; the passing gap of the cylindrical filter membrane of the fine filter part is smaller than the passing gap of the cylindrical filter membrane of the fine filter part; and the filtrate outlet of the fine filter part is connected to the distillation and concentration box.

[0007] Further, the filter assembly further comprises a second driving device; the outer periphery of the inner shell is sealingly and rotatably connected to the filter cylinder; and the second driving device drives the inner shell to rotate.

[0008] Further, a plurality of annular sealing grooves are arranged on the outer periphery of the inner shell; a sealing ring is arranged in each of the annular sealing grooves; and the inner shell is sealingly connected to the inner wall of the filter cylinder through the sealing ring.

[0009] Further, an installation cavity is arranged in the filter cylinder; the second driving device drives the inner shell to rotate through a gear structure; and the second driving device and the gear structure are both arranged in the installation cavity.

[0010] Further, an annular precipitation groove is arranged on the outer periphery of the bottom of the coarse filter part and the bottom of the fine filter part; and a filter residue outlet is arranged on the outer periphery of the filter cylinder and is in communication with the annular precipitation groove.

[0011] Further, the annular sedimentation tank is arranged obliquely, the filter residue outlet is communicated with the lower side of the annular sedimentation tank, a transparent sedimentation pipe is communicated with the filter residue outlet, and a discharge outlet with controllable opening and closing is arranged at the lower end of the sedimentation pipe.

[0012] Further, the filter column comprises a cylindrical shell, a plurality of support claws and a column cover, the lower end of the cylindrical shell is communicated with the inner shell, a plurality of the support claws are arranged in the cylindrical shell in a ring shape, the lower end of the support claw is fixedly connected with the inner wall of the cylindrical shell, the upper part of the support claw is inclined to the central axis of the cylindrical shell, and the filter membrane sleeve placing part is formed between the inner walls of the cylindrical shell of the support claws; the column cover is detachably arranged on the upper part of the cylindrical shell, and a top cone is arranged on the lower end surface of the column cover, and the top cone tops the upper end of the support claw towards the inner wall of the cylindrical shell.

[0013] Further, the support claw is made of elastic material, the support claw is in an arc shape, and the support claw is arched outward along the radial direction of the cylindrical shell.

[0014] Further, the moving assembly comprises a longitudinal moving structure and a transverse moving structure, the longitudinal moving structure is arranged on the inner wall of the filter cartridge and located above the filter assembly, the transverse moving structure is arranged on the longitudinal moving structure, and the first driving device is arranged on the transverse moving structure.

[0015] Further, the organic solvent circulating tank is further provided, the outlet of the organic solvent circulating tank is connected with the smashing and leaching cartridge through a pipeline, and the inlet of the organic solvent circulating tank is connected with the distillation and concentration tank through a pipeline.

[0016] Due to the above technical scheme, the present application has the following beneficial effects:

[0017] 1. When the present application is used, the material is smashed in the smashing machine by the smashing and leaching cartridge, then transmitted to the leaching cavity, and then the smashed material is leached with organic solvent from the organic solvent inlet; then the filter residue is filtered through the coarse filter part and the fine filter part in sequence, and then the pure anthocyanin is obtained through the distillation and concentration tank. In the coarse filter part and the fine filter part, the filter residue on the filter membrane can be moved by the filter membrane brush assembly, so that the dead-end filtration is prevented and the blockage of the filter residue on the filter membrane is reduced. Meanwhile, by arranging a plurality of cylindrical filter membrane structures, the filtering area of the filter membrane is the outer circumferential surface of the cylindrical structure, and a plurality of higher cylindrical filter membrane structures can be arranged on the inner shell to greatly expand the filtering area. The technical problem that the filtering area of the traditional anthocyanin solvent extraction equipment is not easy to expand and the filtering efficiency is not convenient to further improve is solved.

[0018] 2. The application is characterized in that the second driving device is arranged to drive the filter assembly to rotate, the outer circumferential surface of the rotating cylindrical filter membrane structure is in contact with the leaching liquid at irregular speed and angle to form cross-flow filtration, further preventing blockage and improving filtration efficiency. At the same time, the rotating filter column drives the leaching liquid in the filter cylinder to rotate, and the filter residue is moved to the inner wall of the filter cylinder by rotating centrifugation, reducing the contact between the filter residue and the filter membrane, further reducing the blockage of the filter membrane by the filter residue, and improving the filtration effect of the filter membrane. By cooperating with the annular sealing groove arranged obliquely, the filter residue can fall into the annular sealing groove and then enter the sedimentation pipe and be discharged from the discharge port at the lower end of the sedimentation pipe after reaching a certain amount.

[0019] 3. The application is characterized in that the mounting cavity is isolated from the filter cavity by a sealing ring structure, which can prevent the leaching liquid from polluting the second driving device and the gear structure.

[0020] 4. The filter column of the application is characterized in that it is provided with a support claw that can be opened at one end, the upper part of the support claw is closed when the cylindrical filter membrane is installed, which facilitates the installation of the support claw, and then the support claw is opened by the top cone on the lower end surface of the column cover, which can make the cylindrical filter membrane fit and fix with the cylindrical shell, facilitating the disassembly and assembly of the cylindrical filter membrane during replacement.

[0021] 5. The application is characterized in that the organic solvent circulation tank is arranged, which can realize the recycling of organic solvents, reduce the consumption of organic solvents, and improve economic benefits. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a schematic diagram of the application.

[0023] Figure 2 is a schematic diagram of the application.

[0024] Figure 3 is a three-dimensional structure of the filter column and the inner shell.

[0025] Figure 4 is a three-dimensional exploded view of the filter column and the cylindrical filter membrane.

[0026] Figure 5 is a three-dimensional structure of the filter membrane brush assembly.

[0027] Figure 6 is a schematic diagram of the relative motion trajectory of the rotating brush and the filter structure.

[0028] In the drawings: 1 - crushing and leaching cylinder, 2 - filtering cylinder, 3 - distillation and concentration box, 4 - organic solvent circulating box, 101 - crusher, 102 - leaching cavity, 103 - organic solvent inlet, 104 - leaching liquid outlet, 21 - coarse filtering part, 22 - fine filtering part, 23 - filtering assembly, 24 - filter membrane brush assembly, 25 - mounting cavity, 26 - annular precipitation tank, 27 - precipitation pipe, 28 - conical roller bearing, 231 - inner shell, 232 - filtering column, 233 - cylindrical filter membrane, 234 - filtrate outlet, 235 - through hole, 236 - second driving device, 237 - sealing ring, 238 - gear structure, 241 - first driving device, 242 - rotating brush, 243 - longitudinal movement structure, 244 - transverse movement structure, 2321 - cylindrical shell, 2322 - support claw, 2323 - column cover, 2324 - top cone. DETAILED DESCRIPTION

[0029] The specific implementation of the application is further described below in conjunction with the drawings.

[0030] In the description of the application, it should be understood that the terms "center", "length", "width", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the application and simplifying the description, and therefore cannot be understood as limiting the application. The device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the application.

[0031] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above-mentioned terms in the present application can be understood according to the specific circumstances.

[0032] In the present application, unless otherwise explicitly specified and limited, the first feature "above" or "below" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "above", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0033] Please refer toFigures 1 to 6 The application discloses a cyanine pigment separation and extraction device, which comprises a crushing and leaching cylinder 1, a filtering cylinder 2 and a distillation and concentration box 3. The upper portion of the crushing and leaching cylinder 1 is provided with a crusher 101, the upper portion of the crushing and leaching cylinder 1 is provided with the crusher 101, the lower portion of the crushing and leaching cylinder 1 is provided with a leaching cavity 102, the side portion of the leaching cavity 102 is provided with an organic solvent inlet 103, and the lower portion of the leaching cavity 102 is provided with a leaching liquid outlet 104. The upper portion of the filtering cylinder 2 is provided with a coarse filtering part 21, and the lower portion is provided with a fine filtering part 22. The leaching liquid outlet 104 is connected to the upper portion of the coarse filtering part 21. The inner portion of the coarse filtering part 21 and the inner portion of the fine filtering part 22 are both provided with a filtering assembly 23 and a filter membrane brush assembly 24. The filtering assembly 23 comprises an inner shell 231, a plurality of filtering columns 232 and a plurality of cylindrical filter membranes 233. The filtering columns 232 are connected to the inner shell 231. The lower portion of the inner shell 231 is provided with a filtrate outlet 234. The surface of the filtering column 232 is provided with a through hole 235. The cylindrical filter membrane 233 is sleeved on the filtering column 232. The filter membrane brush assembly 24 comprises a moving assembly, a first driving device 241 and a rotating brush 242. The moving assembly is arranged above the filtering assembly 23. The first driving device 241 is arranged on the moving assembly. The first driving device 241 drives the rotating brush 242 to rotate. The moving assembly drives the rotating brush 242 to rotate the outer circumferential brush of the cylindrical filter membrane 233. The cylindrical filter membrane 233 of the fine filtering part 22 passes through a gap smaller than that of the fine filtering part 22. The filtrate outlet 234 of the fine filtering part 22 is connected to the distillation and concentration box 3. The working principle is as follows: the material is crushed in the crusher 101 of the crushing and leaching cylinder 1 and then is transmitted to the leaching cavity 102. The cyanine pigment is leached from the crushed material by injecting the organic solvent into the leaching cavity 102 through the organic solvent inlet 103. Then, the filtering residue is filtered by sequentially passing through the coarse filtering part 21 and the fine filtering part 22. Finally, the pure cyanine pigment is obtained by the distillation and concentration box 3. It should be noted that, in order to match the filtering speed of the fine filtering part 22 with the speed of the coarse filtering part 21, the number of the filtering columns 232 and the cylindrical filter membranes 233 on the filtering assembly 23 of the coarse filtering part 21 is more than that of the fine filtering part 21. In addition, the movement mode of the liquid from the crushing and leaching cylinder 1 to the filtering cylinder 2 and then to the distillation and concentration box 3 can be realized by a pipeline and a liquid pump or by sequentially lowering the placement positions of the crushing and leaching cylinder 1, the filtering cylinder 2 and the distillation and concentration box 3. The leaching liquid is coarsely filtered in the coarse filtering part 21, and the larger particles are removed to obtain the coarse leaching liquid. The fine filtering part 22 adopts the ultrafiltration membrane to filter, and the smaller impurities are finely filtered through the ultrafiltration membrane. The material of the ultrafiltration membrane can be cellulose acetate (CA) to composite membrane (PA), polysulfone (PS) material membrane or polyvinylidene fluoride (PVDF) material membrane.

[0034] In the embodiment, the filter assembly 23 further comprises a second driving device 236, the outer periphery of the inner housing 231 is sealingly rotatably connected with the filter cartridge 2 through the tapered roller bearing 28, and the second driving device 236 drives the inner housing 231 to rotate. Specifically, a plurality of annular sealing grooves are arranged on the outer periphery of the inner housing 231, and a sealing ring 237 is arranged in each annular sealing groove, and the inner housing 231 is sealingly connected with the inner wall of the filter cartridge 2 through the sealing ring 237. An installation cavity 25 is arranged in the filter cartridge 2, the second driving device 236 drives the inner housing 231 to rotate through a gear structure 238, and the second driving device 236 and the gear structure 238 are arranged in the installation cavity 25. The second driving device 236 is arranged to drive the filter assembly 23 to rotate, the outer periphery of the rotating cylindrical filter membrane 233 structure is in contact with the leaching liquid at an irregular speed and angle to form cross-flow filtration, which further prevents blockage and improves filtration efficiency. At the same time, the filter column 232 is rotated to drive the leaching liquid in the filter cartridge 2 to rotate, and the filter residue is moved to the inner wall of the filter cartridge 2 by rotating centrifugation, reducing the contact between the filter residue and the filter membrane, further reducing the blockage of the filter membrane by the filter residue, and improving the filtration effect of the filter membrane. The installation cavity 25 is arranged to be isolated from the filter cavity by the sealing ring 237 structure, which can prevent the leaching liquid from polluting the second driving device 236 and the gear structure 238.

[0035] In the embodiment, the outer periphery of the bottom of the coarse filter part 21 and the bottom of the fine filter part 22 is provided with an annular sedimentation groove 26, and the outer periphery of the filter cartridge 2 is provided with a filter residue outlet communicated with the annular sedimentation groove 26. Specifically, the annular sedimentation groove 26 is arranged obliquely, the filter residue outlet is communicated with the lower side of the annular sedimentation groove 26, a transparent sedimentation pipe 27 is communicated with the filter residue outlet, and a discharge outlet capable of being controlled to open and close is arranged at the lower end of the sedimentation pipe 27. By matching the obliquely arranged annular sealing groove, the filter residue can be made to fall into the sedimentation pipe 27 after falling into the annular sealing groove and reach a certain amount, and then be discharged from the discharge outlet at the lower end of the sedimentation pipe 27.

[0036] In the embodiment, the filter column 232 comprises a cylindrical shell 2321, a plurality of support claws 2322 and a column cover 2323, the lower end of the cylindrical shell 2321 is communicated with the inner shell 231, the plurality of support claws 2322 are arranged in a ring shape in the cylindrical shell 2321, the lower end of the support claw 2322 is fixedly connected with the inner wall of the cylindrical shell 2321, the upper part of the support claw 2322 is inclined to the central axis of the cylindrical shell 2321, and the inner wall of the cylindrical shell 2321 between the support claws 2322 forms a filter membrane sleeve placing part; the column cover 2323 is detachably arranged on the upper part of the cylindrical shell 2321, and the lower end surface of the column cover 2323 is provided with a top cone 2324, which tops the upper end of the support claw 2322 towards the inner wall of the cylindrical shell 2321. Specifically, the support claw 2322 is made of elastic material, the support claw 2322 is in an arc shape, and the support claw 2322 is bowed outward along the radial direction of the cylindrical shell 2321. The filter column 232 is provided with the support claw 2322 which can be opened and closed at one end, when the cylindrical filter membrane is arranged, the upper part of the support claw 2322 is closed to facilitate the arrangement of the support claw 2322, and then the support claw 2322 is opened by the top cone 2324 on the lower end surface of the column cover 2323, so that the cylindrical filter membrane is fixedly attached to the cylindrical shell 2321, and the cylindrical filter membrane is convenient to disassemble and assemble when being replaced.

[0037] In the embodiment, the moving assembly comprises a longitudinal moving structure 243 and a transverse moving structure 244, the longitudinal moving structure 243 is arranged on the inner wall of the filter cylinder 2 and located above the filter assembly 23, the transverse moving structure 244 is arranged on the longitudinal moving structure 243, and the first driving device 241 is arranged on the transverse moving structure 244. It should be noted that the movement track of the first driving device 241 and the rotating brush 242 driven by the longitudinal moving structure 243 and the transverse moving structure 244 comprises two movements, one is the movement of brushing the outer periphery of the cylindrical filter membrane 233 alternately and circularly, and the other is the movement of rotating with the inner shell 231.

[0038] In the embodiment, the organic solvent circulating tank 4 is further arranged, the outlet of the organic solvent circulating tank 4 is connected with the crushing and leaching cylinder 1 through a pipeline, and the inlet of the organic solvent circulating tank 4 is connected with the distillation and concentration tank 3 through a pipeline. By arranging the organic solvent circulating tank 4, the organic solvent can be recycled, the consumption of the organic solvent is reduced, and the economic benefit is improved.

[0039] The above description is a detailed description of the preferred and feasible embodiments of the present application, but the embodiments are not used to limit the patent application range of the present application, and any equivalent changes or modified changes completed under the technical spirit of the present application should belong to the patent range covered by the present application.

Claims

1. A device for isolating and extracting anthocyanins, characterized by: The application relates to a multifunctional extraction and filtration device, which comprises a crushing and leaching cylinder, a filtering cylinder and a distillation and concentration box; the upper part of the crushing and leaching cylinder is provided with a crusher, the lower part of the crushing and leaching cylinder is provided with a leaching cavity, the side part of the leaching cavity is provided with an organic solvent inlet, and the lower part of the leaching cavity is provided with a leaching liquid outlet; the upper part of the filtering cylinder is provided with a coarse filtering part, the lower part of the filtering cylinder is provided with a fine filtering part, the leaching liquid outlet is connected with the coarse filtering part, the inner part of the coarse filtering part and the inner part of the fine filtering part are provided with filtering assemblies and filter membrane brush assemblies, the filtering assembly comprises an inner shell, a plurality of filtering columns and a plurality of cylindrical filter membranes, the filtering columns are connected with the inner shell, the lower part of the inner shell is provided with a filtrate outlet, the surface of the filtering column is provided with a through hole, and the cylindrical filter membrane is sleeved on the filtering column; the filter membrane brush assembly comprises a moving assembly, a first driving device and a rotating brush, the moving assembly is arranged above the filtering assembly, the first driving device is arranged on the moving assembly, the first driving device drives the rotating brush to rotate, the moving assembly drives the rotating brush to rotate, and the rotating outer circumferential brush of the rotating brush drives the outer circumferential filter membrane of the cylindrical filter membrane; the passing gap of the cylindrical filter membrane of the fine filtering part is smaller than the passing gap of the cylindrical filter membrane of the fine filtering part; the filtrate outlet of the fine filtering part is connected with the distillation and concentration box; the filtering assembly further comprises a second driving device, the outer periphery of the inner shell is sealingly and rotatably connected with the filtering cylinder, and the second driving device drives the inner shell to rotate.

2. The anthocyanin separation and extraction device according to claim 1, characterized in that: A plurality of annular sealing grooves are arranged on the outer periphery of the inner shell, sealing rings are arranged in the annular sealing grooves, and the inner shell is sealingly connected with the inner wall of the filtering cylinder through the sealing rings.

3. The anthocyanin separation and extraction device according to claim 2, characterized in that: An installation cavity is arranged in the filtering cylinder, the second driving device drives the inner shell to rotate through a gear structure, and the second driving device and the gear structure are arranged in the installation cavity.

4. The anthocyanin separation and extraction device according to claim 1, characterized in that: The outer periphery of the bottom of the coarse filtering part and the bottom of the fine filtering part is provided with an annular precipitation groove, and the outer periphery of the filtering cylinder is provided with a filter residue outlet which is communicated with the annular precipitation groove.

5. The anthocyanin separation and extraction device according to claim 4, characterized in that: The annular precipitation groove is arranged in an inclined mode, the filter residue outlet is communicated with the lower side of the annular precipitation groove, a transparent precipitation pipe is communicated with the filter residue outlet, and the lower end of the precipitation pipe is provided with a controllable discharge outlet.

6. The anthocyanin separation and extraction device according to claim 1, characterized in that: The filtering column comprises a cylindrical shell, a plurality of supporting claws and a column cover, the lower end of the cylindrical shell is communicated with the inner shell, the supporting claws are arranged in an annular mode in the cylindrical shell, the lower end of the supporting claw is fixedly connected with the inner wall of the cylindrical shell, the upper part of the supporting claw is inclined to the central axis of the cylindrical shell, and the inner wall of the cylindrical shell between the supporting claws forms a filter membrane sleeving part; the column cover is detachably arranged on the upper part of the cylindrical shell, the lower end surface of the column cover is provided with a top cone, and the top cone drives the upper end of the supporting claw to be close to the inner wall of the cylindrical shell.

7. The anthocyanin separation and extraction device according to claim 6, characterized in that: The supporting claw is made of elastic material, the supporting claw is in an arc shape, and the supporting claw is outwardly arched along the radial direction of the cylindrical shell.

8. The anthocyanin separation and extraction device according to claim 1, characterized in that: The moving assembly comprises a longitudinal moving structure and a transverse moving structure, the longitudinal moving structure is arranged on the inner wall of the filter cartridge and is located above the filter assembly, the transverse moving structure is arranged on the longitudinal moving structure, and the first driving device is arranged on the transverse moving structure.

9. The anthocyanin separation and extraction device according to claim 1, characterized in that: An organic solvent circulating tank is further included, an outlet of the organic solvent circulating tank is connected with the smashing and leaching tank through a pipeline, and an inlet of the organic solvent circulating tank is connected with the distillation and concentration tank through a pipeline.

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