Distillation layering separation device for extracting sophora fruit flavone by utilizing nano ultrafiltration membrane plant

Abstract

The invention discloses a distillation, layering and separation device for extracting sophora fruit flavone by using a nano ultrafiltration membrane plant. A separation and layering device body comprises a shell, and an upper cover plate is mounted on the shell in a sealing manner; the grinding assembly comprises a lower grinding disc, the lower grinding disc is detachably installed in the shell, an upper grinding disc is rotationally connected to the lower grinding disc, and a plurality of liquid injection holes are formed in the lower grinding disc in an up-down penetrating mode. According to the method, the flavone dissolution efficiency and the flavone extraction rate are improved through repeated grinding to destroy cell walls and centrifugal stirring, a dissolution solution is separated and layered through centrifugation, efficient separation of a flavone enrichment solution is achieved, meanwhile, the dissolution solution is subjected to low-temperature distillation through recycled heat, and the recovery rate of flavone is increased. The fructus sophorae flavone is extracted in the separation and layering device, the extraction efficiency is greatly improved, the flavone is extracted through combination of the nano ultrafiltration membrane and separation and layering, and the fructus sophorae flavone extraction device has remarkable significance in flavone extraction.

Description

Technical Field

[0001] The sophora japonica flavonoids of the present invention belong to the technical field, and specifically relate to a distillation stratification separation device for extracting sophora japonica flavonoids by using a nano ultrafiltration membrane plant extraction method. Background Art

[0002] Kaempferol is a bioflavonoid and is the main component of drugs such as propolis, peristrophe japonica tablets, and ginkgo biloba leaves. Research shows that kaempferol is non-toxic and harmless, and has effects such as relieving asthma, reducing phlegm and relieving cough, lowering blood pressure, enhancing capillary resistance, reducing blood lipids, dilating coronary arteries, and increasing coronary blood flow. It has been widely used in the clinical treatment of ischemic cardiovascular and cerebrovascular diseases, endocrine diseases, and various chronic inflammations. In the application of tumor clinical treatment, kaempferol can reduce the toxic and side effects brought by conventional chemotherapy, and the combined application with chemotherapy drugs can play a synergistic and anti-tumor effect, etc. It is especially suitable for elderly patients with various complications in the advanced stage of tumors. In-depth research is expected to become an effective anti-cancer and cancer-preventive treatment and health care preparation. Since kaempferol has a low content in traditional Chinese medicine, its separation and extraction are relatively difficult. At present, there are relatively few methods for systematically extracting total flavonoids from sophora japonica and purifying kaempferol from its extracts. Therefore, the research on the extraction of total flavonoids from sophora japonica has significant significance.

[0003] When extracting flavonoids from traditional sophora japonica, the crushed sophora japonica granules are mixed with ethanol, so that the components to be extracted in sophora japonica are dissolved into ethanol. When dissolving, ultrasonic waves are used to break the cell walls of sophora japonica to improve the extraction efficiency. Then, the flavonoid light components are collected by vacuum distillation, and the flavonoid enriched liquid is obtained by separation and stratification. The extracted enriched liquid is then used to extract sophora japonica flavonoids through a nano ultrafiltration membrane.

[0004] However, the traditional extraction of sophora japonica flavonoids from sophora japonica has the following problems to be solved. In order to improve the dissolution rate of flavonoids in sophora japonica in ethanol, sophora japonica needs to be crushed into extremely small particles, resulting in high energy consumption for flavonoid extraction; the residue of organic solvents affects the purity of flavonoids after extraction; the extraction requires multiple steps of operation, making the extraction of flavonoids complex and resulting in low extraction efficiency; the ultrafiltration membrane is easily blocked during extraction, leading to low separation efficiency; and in recent years, due to its high-precision separation characteristics, nano ultrafiltration membranes have been used for the purification of natural products, but there has been no report on its combined use with separation and stratification for extracting sophora japonica flavonoids.

[0005] The information disclosed in this background art section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as an admission or any form of suggestion that this information constitutes prior art already known to those of ordinary skill in the art. Summary of the Invention

[0006] The object of the present invention is to provide a distillation and stratification separation device for extracting sophora japonica flavonoids from plants using a nano ultrafiltration membrane, which can solve the problems of high energy consumption caused by high crushing requirements during the extraction of sophora japonica flavonoids, the influence of residual organic solvents on the purity of flavonoids after extraction, the low extraction efficiency caused by cumbersome extraction steps, and the problem that the filter membrane is easily blocked, affecting the separation efficiency.

[0007] To achieve the above object, the technical solution provided by a specific embodiment of the present invention is as follows:

[0008] A distillation and stratification separation device for extracting sophora japonica flavonoids from plants using a nano ultrafiltration membrane, comprising a separation and stratification device body, a grinding assembly, a centrifugal assembly, and an energy-saving infusion assembly. Specifically:

[0009] The separation and stratification device body includes a housing, and an upper cover plate is installed on the housing in a sealed manner. The detachable installation of the upper cover plate facilitates the maintenance of the components inside the housing. At the same time, the upper cover plate is tightly sealed on the housing to ensure that the housing can form a high-pressure environment.

[0010] The grinding assembly includes a lower grinding disc, which is installed in the housing in a detachable manner. At the same time, the outer diameter of the lower grinding disc matches the inner diameter of the housing, so that there is no gap between the lower grinding disc and the housing when the lower grinding disc is installed in the housing. At the same time, a support ring is fixedly connected to the inner side wall of the housing, and the lower grinding disc is installed in the support ring, so that the lower grinding disc is stably installed in the housing. An upper grinding disc is rotatably connected to the lower grinding disc, so that the lower grinding disc can rotate relative to the upper grinding disc, and the ground sophora japonica particles can be ground by the rotation of the lower grinding disc on the upper grinding disc. The grinding method is used to improve the crushing effect of the sophora japonica particles. A plurality of liquid injection holes are opened in the lower grinding disc in a vertically penetrating manner, so that when the sophora japonica particles are ground by the lower grinding disc and the upper grinding disc, ethanol solvent can be added to the ground sophora japonica particles through the liquid injection holes, so that while grinding the sophora japonica particles, the sophora japonica particles can be dissolved in ethanol, and at the same time, the sophora japonica particles are ground in a solid-liquid mixing manner, improving the grinding effect of the upper grinding disc on the sophora japonica particles, so as to grind the sophora japonica particles more thoroughly. A driving member is installed on the upper grinding disc, and the upper grinding disc is driven to rotate by the driving member, so that the upper grinding disc grinds the sophora japonica particles.

[0011] The centrifugal assembly includes a rotating block, which is rotatably mounted on the bottom wall plate of the housing, so that the rotating block can rotate at the bottom of the housing. A solvent delivery assembly is installed on the rotating block, and the solvent delivery assembly is used for atomizing and spraying the solvent ethanol, so that ethanol is atomized and ejected under the rotation of the rotating block, improving the dissolution effect of ethanol and sophora japonica fruit granules. A grinding member and a centrifugal member are installed on the side wall of the rotating block. The grinding member is used for repeatedly grinding the sophora japonica fruit granules. When the rotating block drives the grinding member to rotate, the sophora japonica fruit granules ground by the upper grinding disc can be further ground, thereby further reducing the size of the sophora japonica fruit granules, realizing the breaking of the cell wall of the sophora japonica fruit, and improving the dissolution efficiency of sophora japonin in ethanol. The centrifugal member is used for stirring, mixing and separating the dissolution liquid. When the rotating block drives the centrifugal assembly to rotate, the ethanol dissolution and sophora japonica fruit granules can be stirred. When the rotating block drives the stirring member to rotate at a high speed, the dissolution liquid can be separated and stratified by centrifugal force, so that the undissolved sophora japonica fruit granules are carried away to the bottom and the periphery of the side wall of the housing for re-grinding, and the dissolution liquid is separated into the upper supernatant liquid, the middle flavonoid-rich liquid and the bottom impurity mixture liquid, so as to realize the separation of the dissolution liquid by the separation and stratification method, greatly improving the extraction efficiency of flavonoids in sophora japonica fruit and at the same time improving the extraction rate of flavonoids in sophora japonica fruit.

[0012] The energy-saving infusion assembly includes a two-fluid mixing device, which is used for mixing ethanol and inert gas. When the two-fluid mixing device mixes ethanol and inert gas, the two-fluid medium composed of inert gas and ethanol is transported into the housing. The inert gas not only makes the transportation of ethanol safe in a high-pressure environment, but also makes the atomization effect of ethanol better when it enters the housing.

[0013] In one or more embodiments of the present invention, a fixing ring is integrally formed at the top of the housing, the upper cover plate is installed on the fixing ring, a sealing ring is arranged between the upper cover plate and the fixing ring, and a plurality of fastening bolts are equidistantly installed on the upper cover plate and the fixing ring, so that the upper cover plate is stably connected to the housing and is convenient for disassembly and assembly between the two. An inlet is arranged on the upper cover plate, and the sophora japonica fruit granules after coarse crushing are transported into the housing through the inlet for grinding treatment.

[0014] In one or more embodiments of the present invention, a first discharge port, a second discharge port, and a third discharge port are sequentially installed on the side wall of the housing from top to bottom. The first discharge port is arranged below the lower grinding disc, and the third discharge port is arranged near the bottom wall plate of the housing. Solenoid valves are installed on the first discharge port, the second discharge port, and the third discharge port. When flavonoids in the sophora japonica fruit particles after grinding and crushing are dissolved in ethanol, the centrifugal force will cause the solution to separate and layer. The supernatant after layering is discharged through the first discharge port, the flavonoid-rich liquid after layering is discharged through the second discharge port, and the mixed liquid containing impurities after layering is discharged through the third discharge port. An abrasion-resistant ceramic layer with a frosted outer surface is provided on the inner side wall of the housing, so that when the grinding part grinds the sophora japonica fruit particles on the inner side wall and the bottom of the housing after centrifugation, through the cooperation of the grinding part and the frosted ceramic layer, the grinding effect on the sophora japonica fruit particles is better, thereby realizing the efficient separation and high extraction rate of flavonoids in the sophora japonica fruit.

[0015] In one or more embodiments of the present invention, an installation groove is formed in the lower grinding disc, and the upper grinding disc is rotationally connected to the lower grinding disc through the installation groove, so that the upper grinding disc grinds the sophora japonica fruit particles when rotating in the installation groove. A plurality of feed holes are equidistantly formed in the upper grinding disc in a vertically penetrating manner, and the sophora japonica fruit particles entering the housing flow to the bottom of the upper grinding disc through the feed holes for grinding. A discharge hole is formed in the center of the lower grinding disc in a vertically penetrating manner, and the ground sophora japonica fruit particles flow to the lower part of the lower grinding disc through the discharge hole. A material guiding frame is installed on the upper grinding disc, and the upper end of the material guiding frame is attached to the inner side wall of the housing, so that the sophora japonica fruit particles added into the housing through the feed port are conveyed onto the upper grinding disc.

[0016] In one or more embodiments of the present invention, the driving part includes an installation shaft, the installation shaft is fixedly connected to the upper grinding disc, and a pair of first stirring plates are rotationally connected to the side wall of the installation shaft, so that the installation shaft and the first stirring plates can rotate relative to each other, so that the first stirring plates and the upper grinding disc can rotate relative to each other. A plurality of first crushing knives and a plurality of second crushing knives are fixedly connected to the front and rear side walls of the pair of first stirring plates, so that when the first crushing knives and the second crushing knives rotate relative to the upper grinding disc, the sophora japonica fruit particles on the upper grinding disc can be stirred and dispersed, so that the sophora japonica fruit on the upper grinding disc can quickly enter the feed holes, improving the grinding effect on the sophora japonica fruit particles. A socket block is fixedly connected to the installation shaft, and a first driving shaft is sleeved on the socket block. The first driving shaft is rotationally connected to the upper cover plate in a penetrating manner. Through the connection between the first driving shaft and the socket block, the installation shaft can be driven to rotate by the first driving shaft, thereby driving the upper grinding disc to rotate. A motor is installed at the upper end of the first driving shaft for driving the rotation of the first driving shaft.

[0017] In one or more embodiments of the present invention, the solvent delivery assembly includes a receiving chamber which is formed within a rotating block. A plurality of atomizing nozzles are installed on the top of the rotating block, such that when the solvent enters the receiving chamber, it can be atomized and ejected through the plurality of atomizing nozzles. The liquid outlets of the plurality of atomizing nozzles are inclined in a manner that diverges outwardly, so that the solvent is atomized by the atomizing nozzles and evenly sprayed upward. The bottom of the rotating block is fixedly connected to a second drive shaft, and the second drive shaft is rotatably connected to the bottom wall plate of the housing in a penetrating manner, such that the second drive shaft can rotate when installed on the bottom wall plate of the housing, so as to drive the rotation of the rotating block through the rotation of the second drive shaft. An infusion groove is formed within the second drive shaft, and a plurality of first infusion holes are formed on the side wall of the second drive shaft located outside the housing. An inner ring is installed on the side wall of the second drive shaft at the position of the first infusion holes, such that the rotation of the second drive shaft can drive the rotation of the inner ring. The outer ring is rotatably connected to the outside of the inner ring, so that the outer ring and the inner ring can rotate relative to each other. A plurality of second infusion holes matching the plurality of first infusion holes are formed on the inner ring, and a third infusion hole is formed on the outer ring. Through the third infusion hole, the solvent can be delivered to the infusion groove through the second infusion holes and the first infusion holes, such that the solvent enters the receiving chamber through the infusion groove. A high-speed motor is installed at the lower end of the second drive shaft, and the second drive shaft is driven by the high-speed motor to rotate at a high speed. The high-speed motor is a variable-frequency motor with a high rotation speed, which is convenient for adjusting the rotation speed during use.

[0018] In one or more embodiments of the present invention, a plurality of mounting plates are fixedly connected to the side wall of the rotating block. The grinding member includes a plurality of first grinding plates and a plurality of second grinding plates. The plurality of first grinding plates are respectively fixedly connected to the bottoms of the plurality of mounting plates, and the plurality of second grinding plates are fixedly connected to the ends of the plurality of mounting plates away from the rotating block. Through the connection of the mounting plates, the structures of the first grinding plates and the second grinding plates are stable. The first grinding plate abuts against the bottom wall plate of the housing, and the sophora japonica fruit particles separated to the bottom of the housing are ground by the first grinding plate. The second grinding plate abuts against the inner side wall of the housing, and the sophora japonica fruit particles separated to the side wall of the housing are ground by the second grinding plate. Both the first grinding plate and the second grinding plate are made of an elastic grinding material, so as to improve the grinding effect on the sophora japonica fruit particles. Ultrasonic emission sources are installed on both the first grinding plate and the second grinding plate, such that when the first grinding plate and the second grinding plate grind the sophora japonica fruit particles, ultrasonic waves can assist in destroying the cell walls of the sophora japonica, improving the destruction efficiency of the cell walls of the sophora japonica, thereby increasing the dissolution efficiency of flavonoids in ethanol. At the same time, when the first grinding plate and the second grinding plate grind the sophora japonica fruit particles, heat is generated due to the friction with the inner wall of the housing, and the generated heat can be absorbed and utilized by the solution.

[0019] In one or more embodiments of the present invention, a support plate is fixedly connected between the mounting plate and the second grinding plate, and the second grinding plate is supported by the support plate to ensure the stability of the structure of the second grinding plate. A plurality of second stirring plates are fixedly connected to the side wall of the support plate, and the second stirring plates can be driven to rotate by the support plate. A plurality of third stirring plates are fixedly connected to the top of the rotating block, and the rotation of the rotating block drives the third stirring plates to rotate. When the rotating block rotates at a high speed and the second stirring plates and the third stirring plates rotate, the second stirring plates and the third stirring plates can drive the dissolving liquid in the shell to rotate, so as to drive the dissolving liquid to rotate by the centrifugal force of rotation, so that the dissolving liquid is mixed and separated into layers by rotation. A plurality of through holes are formed in each of the second stirring plates and the third stirring plates, so that when the second stirring plates and the third stirring plates stir the dissolving liquid, part of the dissolving liquid will pass through the through holes, and the stirring effect on the dissolving liquid is improved through the through holes, and the dissolving efficiency of flavonoids is improved.

[0020] In one or more embodiments of the present invention, a feed pipe is fixedly connected to the feed port of the two-fluid mixing device, and a liquid delivery pipe is arranged at the end of the feed pipe, and the ethanol solvent is delivered into the feed pipe through the liquid delivery pipe. A gas connection port is arranged on the side wall of the feed pipe, and the inert gas is delivered into the feed pipe through the gas connection port. A first fluid delivery pipe is fixedly connected to the discharge port of the two-fluid mixing device, and the ethanol and the inert gas are discharged through the first fluid delivery pipe after being mixed in the two-fluid mixing device. A second fluid delivery pipe is installed on the side wall of the first fluid delivery pipe, and the second fluid delivery pipe is fixedly connected to the outer side wall of the outer ring at the third liquid injection hole, and the second fluid delivery pipe delivers the two-fluid medium into the accommodation chamber through the third liquid injection hole. One end of the first fluid delivery pipe away from the two-fluid mixing device penetrates through the side wall of the shell and is placed inside the shell, and a communication pipe is installed between the pipe of the first fluid delivery pipe placed inside the shell and a plurality of liquid injection holes, and part of the two-fluid medium is delivered above the lower grinding disc through the liquid injection holes, so that when the upper grinding disc grinds the sophora japonica fruit particles, the sophora japonica fruit particles and ethanol are mixed.

[0021] In one or more embodiments of the present invention, an air delivery pipe is installed at the gas connection port of the feed pipe. A first gas interface is installed on the side wall of the air delivery pipe. A one-way valve is installed on the air delivery pipe. A protective cover is installed outside the high-speed motor. One end of the air delivery pipe away from the feed pipe is installed on the side wall of the protective cover. The one-way valve is arranged on the pipeline between the first gas interface and the protective cover. A second gas interface is arranged on the protective cover. Since a large amount of heat is generated when the high-speed motor is in use, in order to recycle the heat generated by the high-speed motor while keeping the temperature of the high-speed motor normal during use, an inert gas is delivered into the protective cover through the second gas interface. The inert gas will carry away the heat generated by the high-speed motor into the air delivery pipe, and then the heat is delivered into the two-fluid mixing device through the air delivery pipe, so that the heat is recycled and delivered into the shell for use through the two-fluid medium.

[0022] Compared with the prior art, the present invention has the following advantages:

[0023] 1. The present invention is provided with a grinding assembly. When extracting sophora japonica flavonoids, the coarsely crushed sophora japonica granules are conveyed to the grinding assembly for fine crushing by grinding. At the same time, when grinding the sophora japonica granules, ethanol is conveyed to the grinding assembly for solid-liquid grinding, which improves the grinding effect of the sophora japonica granules and enables the sophora japonica granules to be fully dissolved in ethanol, and reduces the energy consumption for sophora japonica crushing.

[0024] 2. The present invention is provided with a centrifugal assembly. The centrifugal assembly stirs and mixes the sophora japonica granules and ethanol ground by the grinding assembly. At the same time, when the grinding part and the centrifugal part are driven to rotate by the centrifugal assembly, the grinding part will repeatedly grind and crush the sophora japonica granules separated to the bottom and side walls of the shell, and ultrasonic waves are assisted to completely destroy the cell walls of the sophora japonica, improving the dissolution efficiency of flavonoids; through the action of centrifugal force, the dissolution liquid is separated and stratified, so that the flavonoid-rich liquid can be separated out, greatly improving the extraction efficiency of flavonoids, avoiding the residue of organic solvents, and improving the purity of flavonoid extraction; and the impurity content in the extracted flavonoid-rich liquid is extremely low, thus greatly reducing the frequency of ultrafiltration membrane blockage.

[0025] 3. The present invention is provided with an energy-saving liquid delivery assembly. Ethanol is delivered through the energy-saving liquid delivery assembly. When ethanol is delivered, an inert gas is assisted, and the heat released by the high-speed motor is recycled through the inert gas. The recycled heat is used for the extraction of flavonoids. At the same time, the heat generated during the grinding of the grinding part is absorbed by the dissolution liquid, thus avoiding waste of heat energy and reducing energy consumption.

[0026] 4. The present invention improves the dissolution efficiency of flavonoids and the extraction rate of flavonoids by repeatedly grinding to break cell walls and centrifugal stirring, and separates and layers the dissolution solution by centrifugation to achieve efficient separation of the flavonoid enrichment solution. At the same time, the recovered heat will perform low-temperature distillation on the dissolution solution, enabling the extraction of sophora japonica flavonoids to be completed in the separation and layering device, greatly improving the extraction efficiency. The extraction of flavonoids is achieved by the combination of a nano ultrafiltration membrane and separation and layering, which is of significant significance for the extraction of flavonoids. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments recorded in the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0028] Figure 1 Front view of the distillation and layering separation device for extracting sophora japonica flavonoids by using a nano ultrafiltration membrane in an embodiment of the present invention;

[0029] Figure 2 Stereogram of the distillation and layering separation device for extracting sophora japonica flavonoids by using a nano ultrafiltration membrane in an embodiment of the present invention;

[0030] Figure 3 Cross-sectional view of the distillation and layering separation device for extracting sophora japonica flavonoids by using a nano ultrafiltration membrane in an embodiment of the present invention;

[0031] Figure 4 Sectional view of the distillation and layering separation device for extracting sophora japonica flavonoids by using a nano ultrafiltration membrane in an embodiment of the present invention;

[0032] Figure 5 For the present invention Figure 4 Schematic diagram at position A;

[0033] Figure 6 Exploded view of the grinding assembly in the present invention;

[0034] Figure 7 Partial schematic diagram of the centrifugal assembly in the present invention;

[0035] Figure 8 Exploded view of the installation location of the inner ring and the outer ring in the present invention;

[0036] Figure 9 Schematic diagram of the energy-saving infusion assembly in the present invention.

[0037] Main reference numeral description:

[0038] 1 - Stratified separation device body, 11 - Shell, 12 - Upper cover plate, 13 - Fixed ring, 14 - Sealing ring, 15 - Fastening bolt, 16 - First discharge port, 17 - Second discharge port, 18 - Third discharge port, 19 - Feed port, 2 - Grinding assembly, 21 - Lower grinding disc, 22 - Upper grinding disc, 23 - Installation groove, 24 - Feed hole, 25 - Discharge hole, 26 - Liquid injection hole, 27 - Installation shaft, 28 - First stirring plate, 29 - First crushing knife, 210 - Second crushing knife, 211 - Material guiding frame, 212 - Socket block, 213 - First driving shaft, 3 - Centrifugal assembly, 31 - Rotating block, 32 - Accommodation chamber, 33 - Atomizing nozzle, 34 - Second driving shaft, 35 - Liquid infusion groove, 36 - Inner ring, 37 - Outer ring, 38 - First liquid infusion hole, 39 - Second liquid infusion hole, 310 - Third liquid infusion hole, 311 - Installation plate, 312 - First grinding plate, 313 - Second grinding plate, 314 - Support plate, 315 - Second stirring plate, 316 - Third stirring plate, 317 - Through hole, 318 - High - speed motor, 4 - Energy - saving liquid infusion assembly, 41 - Two - fluid mixing device, 42 - Feed pipe, 43 - Liquid delivery pipe, 44 - First fluid delivery pipe, 45 - Second fluid delivery pipe, 46 - Gas delivery pipe, 47 - First gas interface, 48 - Protective cover, 49 - Second gas interface, 410 - Check valve. Detailed implementation mode

[0039] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0040] As Figures 1 to 4 shown, the distillation and stratification separation device for extracting sophoricoside flavone using a nano - ultrafiltration membrane in an embodiment of the present invention includes a separation and stratification device body 1, a grinding assembly 2, a centrifugal assembly 3, and an energy - saving liquid infusion assembly 4.

[0041] As Figures 1 to 4 shown, the separation and stratification device body 1 includes a shell 11, and an upper cover plate 12 is installed on the shell 11 in a sealed manner. The detachable installation of the upper cover plate 12 facilitates the maintenance of the components inside the shell 11. At the same time, the upper cover plate 12 is tightly sealed on the shell 11 to ensure that the shell 11 can form a high - pressure environment.

[0042] As Figures 1 to 4As shown in the figure, a fixing ring 13 is integrally formed at the top of the housing 11. The upper cover plate 12 is installed on the fixing ring 13. A sealing ring 14 is provided between the upper cover plate 12 and the fixing ring 13. A plurality of fastening bolts 15 are equidistantly installed on the upper cover plate 12 and the fixing ring 13, so that the upper cover plate 12 is stably covered on the housing 11 and is convenient for disassembly and assembly between the two. An inlet port 19 is provided on the upper cover plate 12, and the sophora japonica fruit particles after coarse crushing are conveyed into the housing 11 through the inlet port 19 for grinding treatment.

[0043] As Figures 1 to 4 shown, a first discharge port 16, a second discharge port 17 and a third discharge port 18 are sequentially installed on the side wall of the housing 11 from top to bottom. The first discharge port 16 is arranged below the lower grinding disc 21, and the third discharge port 18 is arranged near the bottom wall plate of the housing 11. Solenoid valves are installed on the first discharge port 16, the second discharge port 17 and the third discharge port 18. When the flavonoids in the ground and crushed sophora japonica fruit particles are dissolved in ethanol, the centrifugal force will cause the solution to separate into layers. The supernatant after stratification is discharged through the first discharge port 16, the flavonoid enrichment liquid after stratification is discharged through the second discharge port 17, and the mixed liquid containing impurities after stratification is discharged through the third discharge port 18. An abrasion-resistant ceramic layer with a frosted outer surface is provided on the inner side wall of the housing 11. When the grinding parts grind the sophora japonica fruit particles located on the inner side wall and the bottom of the housing 11 after centrifugation, through the cooperation of the grinding parts and the frosted ceramic layer, the grinding effect on the sophora japonica fruit particles is better, so as to achieve efficient separation and high extraction rate of flavonoids in sophora japonica.

[0044] As Figure 3 、 Figure 4 and Figure 6As shown in the figure, the grinding assembly 2 includes a lower grinding disc 21, which is detachably installed in the housing 11. At the same time, the outer diameter of the lower grinding disc 21 matches the inner diameter of the housing 11, so that there is no gap between them when the lower grinding disc 21 is installed in the housing 11. At the same time, a support ring is fixedly connected to the inner side wall of the housing 11, and the lower grinding disc 21 is installed in the support ring, so that the lower grinding disc 21 is stably installed in the housing 11. A upper grinding disc 22 is rotatably connected to the lower grinding disc 21, so that the lower grinding disc 21 can rotate relative to the upper grinding disc 22, and the ground sophora japonica granules after crushing can be ground by the rotation of the lower grinding disc 21 on the upper grinding disc 22, and the crushing effect of the sophora japonica granules can be improved by grinding. A plurality of liquid injection holes 26 are opened in the lower grinding disc 21 in a vertically penetrating manner, so that when the sophora japonica granules are ground by the lower grinding disc 21 and the upper grinding disc 22, ethanol solvent can be added to the ground sophora japonica granules through the liquid injection holes 26, so that while the sophora japonica granules are ground, the sophora japonica granules can be dissolved in ethanol, and at the same time, the sophora japonica granules are ground by a solid-liquid mixing method, which improves the grinding effect of the upper grinding disc 22 on the sophora japonica granules, so as to grind the sophora japonica granules more thoroughly. A driving member is installed on the upper grinding disc 22, and the upper grinding disc 22 is driven to rotate by the driving member, so that the upper grinding disc 22 grinds the sophora japonica granules.

[0045] As Figure 6 shown, an installation groove 23 is opened on the lower grinding disc 21, and the upper grinding disc 22 is rotatably connected to the lower grinding disc 21 through the installation groove 23, so that the upper grinding disc 22 grinds the sophora japonica granules when rotating in the installation groove 23. A plurality of feed holes 24 are opened in the upper grinding disc 22 at equal intervals in a vertically penetrating manner, and the sophora japonica granules entering the housing 11 flow to the bottom of the upper grinding disc 22 through the feed holes 24 for grinding. A discharge hole 25 is opened in the center of the lower grinding disc 21 in a vertically penetrating manner, and the ground sophora japonica granules flow to the lower part of the lower grinding disc 21 through the discharge hole 25. A material guide frame 211 is installed on the upper grinding disc 22, and the upper end of the material guide frame 211 is attached to the inner side wall of the housing 11, so that the sophora japonica granules added to the housing 11 through the feed port 19 are conveyed onto the upper grinding disc 22.

[0046] As Figure 3 and Figure 6As shown in the figure, the driving member includes a mounting shaft 27, which is fixedly connected to the upper grinding disc 22. A pair of first stirring plates 28 are rotatably connected to the side wall of the mounting shaft 27, so that the mounting shaft 27 and the first stirring plates 28 can rotate relative to each other, so that the first stirring plates 28 and the upper grinding disc 22 can rotate relative to each other. A plurality of first crushing knives 29 and a plurality of second crushing knives 210 are fixedly connected to the front and rear side walls of the pair of first stirring plates 28. When the first crushing knives 29 and the second crushing knives 210 rotate relative to the upper grinding disc 22, the sophora japonica fruit particles on the upper grinding disc 22 can be stirred and dispersed, so that the sophora japonica fruit on the upper grinding disc 22 can quickly enter the feeding hole 24, improving the grinding effect on the sophora japonica fruit particles. A socket block 212 is fixedly connected to the mounting shaft 27. A first driving shaft 213 is sleeved on the socket block 212. The first driving shaft 213 is rotatably connected to the upper cover plate 12 in a penetrating manner. Through the connection between the first driving shaft 213 and the socket block 212, the mounting shaft 27 can be driven to rotate by the first driving shaft 213, so as to drive the upper grinding disc 22 to rotate. A motor is installed at the upper end of the first driving shaft 213 for driving the rotation of the first driving shaft 213.

[0047] As Figures 3 to 5 shown, the centrifugal component 3 includes a rotating block 31, which is rotatably installed on the bottom wall plate of the housing 11, so that the rotating block 31 can rotate at the bottom of the housing 11. A solvent delivery component is installed on the rotating block 31, and the solvent delivery component is used for atomizing and spraying the solvent ethanol, so that ethanol is atomized and sprayed through the solvent delivery component under the rotation of the rotating block 31, improving the dissolution effect of ethanol and sophora japonica fruit particles. A grinding member and a centrifugal member are installed on the side wall of the rotating block 31. The grinding member is used for repeatedly grinding the sophora japonica fruit particles. When the rotating block 31 drives the grinding member to rotate, the sophora japonica fruit particles ground by the upper grinding disc 22 can be further ground, thereby further reducing the size of the sophora japonica fruit particles, realizing the breaking of the sophora japonica fruit cell wall, and improving the dissolution efficiency of sophora japonica flavonoids in ethanol. The centrifugal member is used for stirring, mixing and separating the lysis solution. When the rotating block 31 drives the centrifugal component to rotate, the ethanol dissolution and sophora japonica fruit particles can be stirred. When the rotating block 31 drives the stirring member to rotate at a high speed, the lysis solution can be separated and stratified by centrifugal force, so that the undissolved sophora japonica fruit particles are carried away to the bottom and the surrounding side walls of the housing 11 for re-grinding. The lysis solution is separated into the upper supernatant, the middle flavonoid enrichment solution and the bottom impurity mixture solution, so as to realize the separation of the lysis solution by separation and stratification, greatly improving the extraction efficiency of flavonoids from sophora japonica fruit and at the same time improving the extraction rate of flavonoids from sophora japonica fruit.

[0048] As Figure 4 Combined with Figure 5As shown, the solvent delivery assembly includes a receiving chamber 32, which is formed in the rotating block 31. A plurality of atomizing nozzles 33 are installed on the top of the rotating block 31. When the solvent enters the receiving chamber 32, it can be atomized and ejected through the plurality of atomizing nozzles 33. The liquid outlets of the plurality of atomizing nozzles 33 are inclined in a way that spreads outward, so that the solvent is atomized by the atomizing nozzles 33 and evenly sprayed upward. The bottom of the rotating block 31 is fixedly connected to a second drive shaft 34. The second drive shaft 34 is rotatably connected to the bottom wall plate of the housing 11 in a penetrating manner, so that the second drive shaft 34 can rotate when installed on the bottom wall plate of the housing 11, in order to drive the rotation of the rotating block 31 through the rotation of the second drive shaft 34. An infusion groove 35 is formed in the second drive shaft 34. A plurality of first infusion holes 38 are formed in the side wall of the second drive shaft 34 located outside the housing 11. An inner ring 36 is installed on the side wall of the second drive shaft 34 at the position of the first infusion holes 38, so that the rotation of the second drive shaft 34 can drive the rotation of the inner ring 36. The outer ring 37 is rotatably connected to the outside of the inner ring 36, so that the outer ring 37 and the inner ring 36 can rotate relative to each other. A plurality of second infusion holes 39 matching the plurality of first infusion holes 38 are formed in the inner ring 36. A third infusion hole 310 is formed in the outer ring 37. Through the third infusion hole 310, the solvent can be transported to the infusion groove 35 through the second infusion holes 39 and the first infusion holes 38, so that the solvent enters the receiving chamber 32 through the infusion groove 35. Since the pipeline for transporting the solvent inputs the solvent through the third infusion hole 310 and the outer ring 37 and the second drive shaft 34 rotate relative to each other, the rotation of the second drive shaft 34 will not drive the rotation of the outer ring 37, making the connection between the outer ring 37 and the pipeline firm. At the same time, the outer ring 37 and the inner ring 36 as well as the inner ring 36 and the second drive shaft 34 are hermetically arranged to ensure that the solvent will not leak during transportation. A high-speed motor 318 is installed at the lower end of the second drive shaft 34. The second drive shaft 34 is driven to rotate at a high speed by the high-speed motor 318. The high-speed motor 318 is a variable-frequency motor with a high rotation speed, which is convenient for adjusting the rotation speed during use.

[0049] As Figure 5 and Figure 7As shown in the figure, a plurality of mounting plates 311 are fixedly connected to the side wall of the rotating block 31. The grinding member includes a plurality of first grinding plates 312 and a plurality of second grinding plates 313. The plurality of first grinding plates 312 are respectively fixedly connected to the bottoms of the plurality of mounting plates 311, and the plurality of second grinding plates 313 are fixedly connected to one end of the plurality of mounting plates 311 away from the rotating block 31. The connection through the mounting plates 311 makes the structures of the first grinding plates 312 and the second grinding plates 313 stable. The first grinding plate 312 abuts against the bottom wall of the housing 11, and the sophora japonica fruit particles separated to the bottom of the housing 11 are ground by the first grinding plate 312. The second grinding plate 313 abuts against the inner side wall of the housing 11, and the sophora japonica fruit particles separated to the side wall of the housing 11 are ground by the second grinding plate 313. Both the first grinding plate 312 and the second grinding plate 313 are made of an elastic grinding material to improve the grinding effect on the sophora japonica fruit particles. Ultrasonic emission sources are installed on both the first grinding plate 312 and the second grinding plate 313, so that when the first grinding plate 312 and the second grinding plate 313 grind the sophora japonica fruit particles, ultrasonic waves can assist in destroying the cell walls of the sophora japonica fruit, improve the destruction efficiency of the cell walls of the sophora japonica fruit, and thus improve the dissolution efficiency of flavonoids in ethanol. At the same time, when the first grinding plate 312 and the second grinding plate 313 grind the sophora japonica fruit particles, heat will be generated due to the friction with the inner wall of the housing 11, and the generated heat can be absorbed and utilized by the solution.

[0050] As Figure 4 and Figure 7 shown in the figure, a support plate 314 is fixedly connected between the mounting plate 311 and the second grinding plate 313. The second grinding plate 313 is supported by the support plate 314 to ensure the stability of the structure of the second grinding plate 313. A plurality of second stirring plates 315 are fixedly connected to the side wall of the support plate 314, and the second stirring plates 315 can be driven to rotate by the support plate 314. A plurality of third stirring plates 316 are fixedly connected to the top of the rotating block 31, and the rotation of the rotating block 31 drives the third stirring plates 316 to rotate. When the high-speed rotation of the rotating block 31 drives the second stirring plates 315 and the third stirring plates 316 to rotate, the second stirring plates 315 and the third stirring plates 316 can drive the dissolution liquid in the housing 11 to rotate, so as to drive the dissolution liquid to rotate by the centrifugal force of rotation, so that the dissolution liquid is mixed and separated into layers by rotation. A plurality of through holes 317 are formed in both the plurality of second stirring plates 315 and the third stirring plates 316, so that when the second stirring plates 315 and the third stirring plates 316 stir the dissolution liquid, part of the dissolution liquid will pass through the through holes 317, and the stirring effect on the dissolution liquid is improved through the through holes 317, and the dissolution efficiency of flavonoids is improved.

[0051] As Figures 1 to 4 and Figure 9As shown in the figure, the energy-saving infusion assembly 4 includes a two-fluid mixing device 41. The two-fluid mixing device 41 is used for mixing ethanol and inert gas. In the two-fluid mixing device 41, ethanol and inert gas are mixed, so that the two-fluid medium composed of inert gas and ethanol is transported into the housing 11. The inert gas not only makes the transportation of ethanol safe in a high-pressure environment, but also makes the atomization effect of ethanol better when it enters the housing 11.

[0052] As Figure 3 and Figure 9 shown in the figure, a feed pipe 42 is fixedly connected to the feed port of the two-fluid mixing device 41. A liquid delivery pipe 43 is provided at the end of the feed pipe 42. Ethanol solvent is transported into the feed pipe 42 through the liquid delivery pipe 43. A gas connection port is provided on the side wall of the feed pipe 42, and inert gas is transported into the feed pipe 42 through the gas connection port. A first fluid delivery pipe 44 is fixedly connected to the discharge port of the two-fluid mixing device 41. After ethanol and inert gas are mixed in the two-fluid mixing device 41, they are discharged through the first fluid delivery pipe 44. A second fluid delivery pipe 45 is installed on the side wall of the first fluid delivery pipe 44. The second fluid delivery pipe 45 is fixedly connected to the outer side wall of the outer ring 37 at the third infusion hole 310. The second fluid delivery pipe 45 transports the two-fluid medium into the accommodation chamber 32 through the third infusion hole 310. One end of the first fluid delivery pipe 44 away from the two-fluid mixing device 41 penetrates through the side wall of the housing 11 and is placed inside the housing 11. A communication pipe is installed between the pipe of the first fluid delivery pipe 44 placed inside the housing 11 and a plurality of liquid injection holes 26. Part of the two-fluid medium is transported to the upper part of the lower grinding disc 21 through the liquid injection holes 26, so that when the upper grinding disc 22 grinds the sophora japonica fruit particles, the sophora japonica fruit particles and ethanol are mixed.

[0053] As Figure 9 shown in the figure, a gas delivery pipe 46 is installed at the gas connection port of the feed pipe 42. A first gas interface 47 is installed on the side wall of the gas delivery pipe 46. A one-way valve 410 is installed on the gas delivery pipe 46. A protective cover 48 is installed outside the high-speed motor 318. One end of the gas delivery pipe 46 away from the feed pipe 42 is installed on the side wall of the protective cover 48. The one-way valve 410 is arranged on the pipe between the first gas interface 47 and the protective cover 48. A second gas interface 49 is provided on the protective cover 48. Since a large amount of heat is generated when the high-speed motor 318 is in use, in order to recycle the heat generated by the high-speed motor 318 and keep the temperature of the high-speed motor 318 normal during use, inert gas is transported into the protective cover 48 through the second gas interface 49. The inert gas will take away the heat generated by the high-speed motor 318 into the gas delivery pipe 46, and then transport the heat into the two-fluid mixing device 41 through the gas delivery pipe 46, so that the heat is recycled and transported into the housing 11 through the two-fluid medium for use.

[0054] It should be noted that for the purpose of facilitating the intelligent operation of this device, necessary sensors and electrical components are equipped. The automatic or semi-automatic control of the present invention can be achieved through a single-chip microcomputer or other control devices in cooperation with the necessary sensors and electrical components, which are well-known to those skilled in the art and will not be elaborated herein.

[0055] During use, the sophora japonica pods are roughly crushed by the crushing device. The crushed sophora japonica pod particles are conveyed into the housing 11 through the feed inlet 19. The sophora japonica pod particles enter the housing 11 and fall onto the upper grinding disc 22. When the driving device drives the upper grinding disc 22 to rotate, under the action of the first stirring plate 28, the sophora japonica pod particles can quickly enter the feed holes 24, and then the sophora japonica pod particles can be ground by the rotation of the upper grinding disc 22 relative to the lower grinding disc 21. At the same time, the two-fluid mixing device 41 mixes inert gas and ethanol into a two-fluid medium, and the two-fluid medium is conveyed through the first fluid delivery pipe 44 to the lower grinding disc 21 through the liquid injection hole 26, so that the ethanol contacts the sophora japonica pod particles. Then, the upper grinding disc 22 grinds the solid-liquid mixture of ethanol and sophora japonica pod particles. The ground solid-liquid mixture flows to the lower part of the lower grinding disc 21 through the discharge hole 25. When the high-speed motor 318 drives the rotating block 31 to rotate, the two-fluid medium conveyed into the accommodating chamber 32 through the second fluid delivery pipe 45 will be atomized and ejected through the atomizing nozzle 33, so as to mix the ethanol with the mixture flowing down from the discharge hole 25. When the rotation of the rotating block 31 drives the plurality of first grinding plates 312, second grinding plates 313, second stirring plates 315 and third stirring plates 316 to rotate, the mixed liquid in the housing 11 will be driven to rotate. Under the action of centrifugal force, the sophora japonica pod particles in the mixed liquid are located at the bottom and side walls of the housing 11, and the sophora japonica pod particles can be repeatedly crushed by the first grinding plates 312 and the second grinding plates 313. At the same time, with the assistance of ultrasonic waves, the cell walls of the sophora japonica pods are completely broken, so that the flavonoids in the sophora japonica pods can quickly dissolve into the ethanol. Since the two-fluid medium will carry the heat generated by the high-speed motor 318 when entering the housing 11, the heat generated during the grinding of the first grinding plates 312 and the second grinding plates 313 will be absorbed by the mixed liquid, realizing the low-temperature distillation of the mixed liquid. Through the continuous stirring and grinding of the centrifugal component on the mixed liquid, the flavonoids in the sophora japonica pods are continuously dissolved into the ethanol. Under the action of centrifugal force, the dissolved liquid is separated and stratified, so that the dissolved liquid can be separated into a supernatant layer, a flavonoid-rich liquid layer and an impurity mixed liquid layer from top to bottom in sequence. Thus, the flavonoid-rich liquid can be separated from the mixed liquid, making the extraction of sophora japonica flavonoids efficient, energy-saving and with a high extraction rate.

[0056] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.

[0057] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A distillation and stratification separation device for extracting flavonoids from jasmine using a nano-ultrafiltration membrane, characterized in that: It includes a separation and stratification device body, a grinding component, a centrifugal component and an energy-saving infusion component, specifically: The separation and stratification device body comprises a shell, on which an upper cover plate is installed in a sealed manner; The grinding assembly comprises a lower grinding disc, which is detachably mounted in the housing, an upper grinding disc is rotatably connected to the lower grinding disc, a plurality of injection holes are provided on the lower grinding disc in an upward and downward penetrating manner, and a driving member is mounted on the upper grinding disc; The centrifugal assembly comprises a rotating block, which is rotatably mounted on the bottom wall plate of the shell, a solvent delivery assembly is mounted on the rotating block, and the solvent delivery assembly is used for atomizing and spraying the solvent ethanol, a grinding piece and a centrifugal piece are mounted on the side wall of the rotating block, the grinding piece is used for repeatedly grinding the Sophora japonica granules, and the centrifugal piece is used for stirring, mixing and separating and stratifying the dissolved liquid; The energy-saving infusion assembly comprises a dual-fluid mixing device, which is used for mixing ethanol and inert gas.

2. The distillation and stratification separation device for extracting flavonoids from jasmine using a nano-ultrafiltration membrane according to claim 1, characterized in that: A fixing ring is integrally formed on the top of the shell, the upper cover is mounted on the fixing ring, a sealing ring is arranged between the upper cover and the fixing ring, a plurality of fastening bolts are installed on the upper cover and the fixing ring at equal intervals, and a feed port is arranged on the upper cover.

3. The distillation and stratification separation device for extracting flavonoids from jasmine using a nano-ultrafiltration membrane according to claim 2, characterized in that: The first discharge port, the second discharge port and the third discharge port are sequentially installed on the side wall of the shell from top to bottom. The first discharge port is arranged below the lower grinding disc, and the third discharge port is arranged near the bottom wall panel of the shell. Solenoid valves are installed on the first discharge port, the second discharge port and the third discharge port. A wear-resistant ceramic layer with a frosted outer surface is arranged on the inner wall of the shell.

4. The distillation and stratification separation device for extracting flavonoids from sophora japonica by nano-ultrafiltration membrane according to claim 1, characterized in that: The lower grinding disc is provided with a mounting groove, and the upper grinding disc is rotatably connected to the lower grinding disc through the mounting groove. The upper grinding disc is provided with a plurality of feed holes at equal intervals in an up-and-down penetrating manner, and a discharge hole is provided in the center of the lower grinding disc in an up-and-down penetrating manner. A material guide frame is installed on the upper grinding disc, and the upper end of the material guide frame is in contact with the inner wall of the shell.

5. The distillation and stratification separation device for extracting flavonoids from jasmine using a nano-ultrafiltration membrane according to claim 4, characterized in that: The driving member includes a mounting shaft, which is fixedly connected to the upper grinding disc, a pair of first stirring plates are rotatably connected to the side wall of the mounting shaft, a plurality of first crushing knives and a plurality of second crushing knives are fixedly connected to the front and rear side walls of the pair of first stirring plates, a sleeve block is fixedly connected to the mounting shaft, a first driving shaft is sleeved on the sleeve block, and the first driving shaft is rotatably connected to the upper cover plate in a through manner.

6. The distillation and stratification separation device for extracting flavonoids from sophora japonica by nano-ultrafiltration membrane according to claim 1, characterized in that: The solvent delivery assembly includes a accommodating chamber, which is opened in a rotating block. A plurality of atomizing nozzles are installed on the top of the rotating block. The liquid outlets of the plurality of atomizing nozzles are inclined in a manner of diffusing outward. A second driving shaft is fixedly connected to the bottom of the rotating block. The second driving shaft is rotatably connected to the bottom wall plate of the shell in a penetrating manner. An infusion groove is opened in the second driving shaft. A plurality of first infusion holes are opened on the side wall of the shell on which the second driving shaft is placed outside. An inner ring is installed on the side wall of the second driving shaft at the first infusion hole. An outer ring is rotatably connected to the outer side of the inner ring. A plurality of second infusion holes matching the plurality of first infusion holes are opened on the inner ring. A third infusion hole is opened on the outer ring. A high-speed motor is installed at the lower end of the second driving shaft.

7. The distillation and stratification separation device for extracting flavonoids from sophora japonica by using a nano-ultrafiltration membrane according to claim 6, characterized in that: A plurality of mounting plates are fixedly connected to the side wall of the rotating block, and the grinding member includes a plurality of first grinding plates and a plurality of second grinding plates, wherein the plurality of first grinding plates are respectively fixedly connected to the bottom of the plurality of mounting plates, and the plurality of second grinding plates are fixedly connected to one end of the plurality of mounting plates away from the rotating block, the first grinding plates abut against the bottom wall plate of the shell, and the second grinding plates abut against the inner side wall of the shell, the first grinding plates and the second grinding plates are both made of elastic grinding materials, and ultrasonic emission sources are installed on the first grinding plates and the second grinding plates.

8. The distillation and stratification separation device for extracting flavonoids from sophora japonica by nano-ultrafiltration membrane according to claim 7, characterized in that: A support plate is fixedly connected between the mounting plate and the second grinding plate, a plurality of second stirring plates are fixedly connected to the side wall of the support plate, a plurality of third stirring plates are fixedly connected to the top of the rotating block, and a plurality of through holes are provided on the plurality of second stirring plates and the third stirring plates.

9. The distillation and stratification separation device for extracting flavonoids from sophora japonica by nano-ultrafiltration membrane according to claim 8, characterized in that: The feed port of the dual-fluid mixing device is fixedly connected to a feed pipe, a liquid delivery pipe is provided at the end of the feed pipe, a gas connection port is provided on the side wall of the feed pipe, the discharge port of the dual-fluid mixing device is fixedly connected to a first fluid delivery pipe, a second fluid delivery pipe is installed on the side wall of the first fluid delivery pipe, the second fluid delivery pipe is fixedly connected to the outer side wall of the outer ring at the third infusion hole, one end of the first fluid delivery pipe away from the dual-fluid mixing device passes through the side wall of the shell and is placed in the shell, and a connecting pipe is installed between the first fluid delivery pipe placed on the pipeline in the shell and the multiple injection holes.

10. The distillation and stratification separation device for extracting flavonoids from sophora japonica by using a nano-ultrafiltration membrane according to claim 9, characterized in that: The gas connection port of the feed pipe is installed with a gas pipe, a first gas interface is installed on the side wall of the gas pipe, a one-way valve is installed on the gas pipe, a protective cover is installed on the outside of the high-speed motor, one end of the gas pipe away from the feed pipe is installed on the side wall of the protective cover, the one-way valve is arranged on the pipeline between the first gas interface and the protective cover, and a second gas interface is arranged on the protective cover.

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