A percolation device and a preparation method of phyllium extract

Abstract

The application provides a percolation device and a preparation method of phyllanthus emblica extract. The percolation device comprises a percolation tank, a pressing device and a plurality of separation structures. The preparation method of the phyllanthus emblica extract is as follows: firstly, phyllanthus emblica medicinal materials are roughly crushed and soaked, and then are put into the percolation device for percolation to collect percolation liquid; then, the percolation liquid is adsorbed through a macroporous resin, and is eluted with water and ethanol in sequence, the obtained lower column liquid and water eluate are combined and are separated through a ceramic membrane and an ultrafiltration membrane in sequence to obtain a small molecule functional sugar part and perform activated carbon decolorization, finally, the ethanol solution is eluted, and after concentration and drying, a polyphenol part is obtained, and the target product is prepared by proportioning. The technical scheme provided by the application can extract and enrich active small molecule functional sugars and polyphenol components in phyllanthus emblica at one time. The extract has good color and solubility, and effectively solves the problems of single extracted component in the traditional process and poor color and solubility and inconvenient application.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of percolation, in particular to a percolation device and a preparation method of phyllium extract. BACKGROUND

[0002] The percolator is a solid-liquid extraction equipment commonly used in the fields of traditional Chinese medicine extraction and natural product separation, which realizes continuous extraction and separation of effective components by flowing solvent from top to bottom through the material powder bed.

[0003] When the material is subjected to percolation operation, the material soaked after crushing is laid in the inside of the percolator. In order to better remove the air bubbles between the materials and form a relatively consistent pore structure between the materials, improve the percolation efficiency, the material is usually laid layer by layer, and after laying a layer of material, the material is pressed by a compaction device. After the material is filled, solvent is added to the percolator, so that the solvent flows through the material and takes away the required material components.

[0004] Since the solvent flows downward by gravity, the contact time between the solvent and the material is short during the solvent addition stage, especially for the upper layer of material, so that the solvent consumption increases and the recovery energy consumption is high.

[0005] Therefore, it is necessary to provide a percolation device and a preparation method of phyllium extract to solve the above technical problems. SUMMARY

[0006] The present application provides a percolation device, which solves the problem that the percolation device increases the solvent consumption due to the short contact time between the solvent and the material during the solvent addition stage caused by the downward flow of the solvent by gravity.

[0007] To solve the above technical problems, the percolation device provided by the present application comprises a percolation tank.

[0008] A pressing device, the pressing device comprises a lifting cylinder, a connecting piece and a pressing plate structure, the lifting cylinder is installed on the percolation tank, the pressing plate structure is installed on the output end of the lifting cylinder through the connecting piece and located in the inside of the percolation tank.

[0009] A plurality of separation structures, a plurality of the separation structures are stacked and installed on the bottom of the pressing plate structure through the connecting structure, the separation structure comprises a grid plate and a filter layer, the filter layer is installed on the top of the grid plate.

[0010] During loading, a plurality of layers of material are sequentially laid in the inside of the percolation tank, the pressing device pushes down the separation structures to sequentially press down each layer of material, and the connecting structure unlocks the separation structure located at the bottom each time, so that the separation structure falls on each layer of material.

[0011] Preferably, the device further comprises a scraper, which is rotatably installed in the middle of the bottom of the grid plate, and the angle of rotation of the scraper is not more than 90 degrees, the connecting member comprises an assembly cylinder, a connecting disc and a motor, the motor is installed in the assembly cylinder through the connecting disc, the pressing plate structure comprises a lower pressing plate and a rotating cylinder, the rotating cylinder is installed at the top end of the lower pressing plate, and the rotating cylinder is rotatably connected with the assembly cylinder, the output end of the motor is detachably connected with the rotating cylinder, and the separation structure is installed on the lower pressing plate through the connecting structure.

[0012] Preferably, the bottom of the grid plate is provided with a receiving groove, and the scraper is rotatably installed in the receiving groove.

[0013] Preferably, when the scraper rotates out of the receiving groove, the scraper is arranged in an inclined manner.

[0014] Preferably, the separation structure further comprises a limiting shaft, which is installed in the receiving groove, and when the scraper rotates out of the receiving groove, the scraper is abutted on the limiting shaft, so that the scraper is arranged in an inclined manner.

[0015] Preferably, the connecting structure comprises a threaded shaft, a nut and a rotating piece, the threaded shaft penetrates the lower pressing plate and the plurality of separation structures in sequence, the nut is installed on the lower pressing plate and is threadedly connected with the threaded shaft, the grid plate is connected with the threaded shaft through a threaded sleeve, and the rotating piece is used to drive the threaded shaft to rotate.

[0016] Preferably, the rotating piece is a U-shaped frame, the rotating piece is installed at the top end of the threaded shaft, the connecting member further comprises a driving block, the driving block is installed on the output shaft of the motor, the pressing plate structure further comprises two U-shaped sleeves, the two U-shaped sleeves are respectively installed on the two sides of the inner wall of the rotating cylinder, the two ends of the driving block are correspondingly inserted into the two U-shaped sleeves, the rotating piece is located below the driving block, the connecting disc is slidably installed in the assembly cylinder, and the output shaft of the lifting cylinder penetrates the assembly cylinder and is connected with the connecting disc.

[0017] Preferably, the connecting member further comprises a positioning plate, which is installed on the connecting disc and suspended above the U-shaped sleeve.

[0018] Preferably, the separation structure further comprises a plurality of elastic sheets, the grid plate is provided with an assembly hole, the threaded sleeve is installed in the assembly hole, the plurality of elastic sheets are installed around the assembly hole, and the filter layer is divided into a plurality of pieces at positions corresponding to the assembly hole and is correspondingly connected with each elastic sheet.

[0019] The application also provides a preparation method of the phyllium extract, which comprises the following steps:

[0020] S1, the crude phyllanthus emblica medicinal material is crushed, and 4 times the medicinal material amount of water is used to soak for at least 3 hours;

[0021] S2, the soaked medicinal material is put into the percolation device, a preset amount of solvent is used for percolation, and the percolated liquid is collected;

[0022] S3, the percolated liquid is adsorbed by macroporous resin, and then 4BV water and 4BV 60% ethanol are used for elution in turn;

[0023] S4, the obtained lower column liquid and water washing liquid are combined and separated by ceramic membrane and ultrafiltration membrane in turn to obtain a phyllanthus emblica small molecule functional sugar part, the small molecule functional sugar part is decolorized by activated carbon, and then concentrated and dried to obtain a decolorized small molecule functional sugar part;

[0024] S5, the polyphenol substance adsorbed on the macroporous resin is eluted by using 60% ethanol solution, and then concentrated and dried to obtain a phyllanthus emblica polyphenol part;

[0025] S6, the decolorized small molecule functional sugar part and the polyphenol part are proportioned to obtain a target product.

[0026] Compared with the related art, the percolation device provided by the application has the following beneficial effects:

[0027] The percolation device provided by the application, when in use, a layer of material is laid on the filter screen in the percolation tank, then the device is pressed down to push the separation structure, so that the grid plate presses down the material, and a relatively uniform pore structure is formed between the materials, then the connecting structure unlocks the lowermost separation structure, so that the separation structure falls on the material, then a layer of material is laid, and the subsequent operation is the same, after the solvent is added, the flow rate of the solvent is slowed down by the filter layer through the arrangement of multiple separation structures, so that the solution can stay on each layer of material for a longer time, thereby increasing the contact time of the solvent and the material, and the solution can carry out the components on the material more quickly, and the percolation efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 The structure diagram of the percolation device provided by the application;

[0029] Figure 2 The sectional view of the percolation device provided by the application;

[0030] Figure 3 The partial schematic view of the pressing device and the separation structure provided by the application;

[0031] Figure 4 The assembly schematic view of the connecting structure and the separation structure provided by the application;

[0032] Figure 5The bottom view of the partition structure provided by the present application;

[0033] Figure 6 The sectional view of the partition structure provided by the present application;

[0034] Figure 7 The working state schematic diagram of the scraper provided by the present application, wherein, Figure 7 (a) is the schematic diagram of the material added to the inside of the percolation tank to form a feeding position bump, Figure 7 (b) is the schematic diagram of the material top relative to the scraping after the rotation of the scraper;

[0035] Figure 8 The working state schematic diagram of the partition structure provided by the present application laid on the material, wherein, Figure 8 (a) is the schematic diagram of the lower pressing device driving the partition structure to press the material, Figure 8 (b) is the schematic diagram of the partition structure located at the lowermost position being unlocked to be located at the top of the material;

[0036] Figure 9 The enlarged schematic diagram provided by the present application, wherein, Figure 9 (a) is Figure 7 The enlarged schematic diagram at A in (a), Figure 9 (b) is Figure 8 The enlarged schematic diagram at B in (a);

[0037] Figure 10 The step block diagram of the preparation method of the phyllium extract provided by the present application.

[0038] Mark in the figure:

[0039] 1, percolation tank; 11, tank body; 12, tank cover; 13, tank bottom; 14, liquid outlet pipe; 15, feeding pipe;

[0040] 2, lower pressing device; 21, lifting cylinder; 22, connecting piece; 23, pressing plate structure;

[0041] 221, assembly cylinder; 222, connecting disc; 223, motor; 224, driving block; 225, positioning plate;

[0042] 231, lower pressing plate; 232, rotating cylinder; 233, U-shaped sleeve;

[0043] 3, partition structure; 31, grid plate; 32, filter layer; 33, threaded sleeve; 34, elastic sheet; 35, limiting shaft; 311, storage groove; 312, assembly hole;

[0044] 4, connecting structure; 41, threaded shaft; 42, nut; 43, rotating piece;

[0045] 5, scraper;

[0046] 6. Filter screen;

[0047] 7. Bracket. Detailed Implementation

[0048] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0049] This invention provides a percolation device.

[0050] Please refer to the following: Figure 1 and Figure 2 In one embodiment of the present invention, the percolation device includes: a percolation tank 1;

[0051] The pressing device 2 includes a lifting cylinder 21, a connecting piece 22, and a pressure plate structure 23. The lifting cylinder 21 is installed on the percolation tank 1, and the pressure plate structure 23 is installed at the output end of the lifting cylinder 21 through the connecting piece 22 and is located inside the percolation tank 1.

[0052] Multiple partition structures 3 are stacked and installed at the bottom of the pressure plate structure 23 by a connecting structure 4. Each partition structure 3 includes a grid plate 31 and a filter layer 32, with the filter layer 32 installed on top of the grid plate 31.

[0053] During loading, materials are laid in multiple layers inside the percolation tank 1. The pressing device 2 pushes down the partition structure 3 to press down each layer of material in turn. The connecting structure 4 unlocks the partition structure 3 that is at the bottom each time, so that the partition structure 3 falls on each layer of material.

[0054] In this invention, the percolation tank 1 includes a tank body 11, a tank cover 12, a tank bottom 13, a liquid outlet pipe 14, a feed pipe 15, etc. The tank cover 12 and the tank bottom 13 are detachably installed on the top and bottom of the tank body 11. By removing the tank bottom 13 and the tank cover 12, it is convenient to discharge the filter residue and clean the percolation tank 1. The liquid outlet pipe 14 is used to discharge the percolated solution, and a valve is provided on the liquid outlet pipe 14 to control the flow rate. The feed pipe 15 is used to add materials. The filter screen 6 is set inside the percolation tank 1 and located on the tank bottom 13. Of course, it also includes a pressure valve, an exhaust structure, etc.

[0055] In use, a layer of material is laid on the filter screen 6 inside the percolation tank 1. Then, the pressing device 2 pushes down the separating structure 3, causing the grid plate 31 to press down on the material, forming a relatively uniform pore structure between the materials. Then, the connecting structure 4 unlocks the bottom separating structure 3, allowing the separating structure 3 to fall on the material. Then, another layer of material is laid down, and the subsequent operations are the same. After adding solvent, by setting multiple separating structures 3, the flow rate of the solvent is slowed down through the filter layer 32, allowing the solution to stay on each layer of material for a longer time, thereby increasing the contact time between the solvent and the material, allowing the solution to carry out the components on the material more quickly, and reducing the use of solvent.

[0056] In this embodiment, the filter layer 32 can be a filter cloth, a filter membrane, or degreased cotton, etc.; the grid plate 31 is a porous plate with a pore size smaller than the diameter of the material.

[0057] The partition structure 3 is specifically designed according to the size of the percolation tank 1, and the number of partition structures 3 is not less than three.

[0058] The lifting cylinder 21 can be a pneumatic cylinder, a hydraulic cylinder, or an electric push rod, etc.

[0059] Please see Figure 5 and Figure 6 In a preferred embodiment, the percolation device further includes a scraper 5, which is rotatably mounted at the bottom center of the grid plate 31, and the scraper 5 can rotate at an angle not exceeding ninety degrees. The connecting member 22 includes an assembly cylinder 221, a connecting plate 222, and a motor 223. The motor 223 is mounted inside the assembly cylinder 221 via the connecting plate 222. The pressure plate structure 23 includes a lower pressure plate 231 and a rotating cylinder 232. The rotating cylinder 232 is mounted on the top of the lower pressure plate 231 and is rotatably connected to the assembly cylinder 221. The output end of the motor 223 is detachably connected to the rotating cylinder 232. The separating structure 3 is mounted on the lower pressure plate 231 via the connecting structure 4.

[0060] When the material is added into the percolation tank 1, it needs to be spread evenly.

[0061] When material is fed into the percolation tank 1 through the feed pipe 15 by a feeding device such as a screw conveyor, the material may be fed at a high position on one side and low on the other. Figure 7 (a) This makes it difficult to press down the material to form a relatively uniform pore structure between the materials.

[0062] After a layer of material is laid inside the percolation tank 1 by setting scraper 5, lifting cylinder 21 pushes down pressure plate structure 23 through connector 22 and drives partition structure 3 to move down. During the downward movement, motor 223 drives rotating cylinder 232 to rotate. Rotating cylinder 232 rotates through lower pressure plate 231. Lower pressure plate 231 drives partition structure 3 to rotate through connector 22. Partition structure 3 drives scraper 5 to rotate accordingly. After scraper 5 interacts with the raised material in the middle, it pushes the material to a lower position on the material surface, so that the raised material surface gradually tends to be horizontal. Figure 7 (b) Then the motor 223 stops working, and the lifting cylinder 21 continues to move down, so that the partition structure 3 can press down the material, thereby allowing the material to enter the percolation tank 1 more evenly.

[0063] By rotating the scraper 5 to the bottom of the grid plate 31, when multiple partition structures 3 are stacked, the scraper 5 can be set to fit the grid plate 31. When there are no other partition structures 3 supporting the partition structure 3 below, the scraper 5 rotates downward by gravity and is set at a preset angle with the grid plate 31.

[0064] By setting the rotatable angle of the scraper 5 to no more than 90 degrees, when scraping the material horizontally, the direction of rotation of the lower pressure plate 231 is the direction in which the scraper 5 cannot rotate, thereby preventing the scraper 5 from being rotated and closed by the force of the material.

[0065] As an optional embodiment, the lower pressure plate 231 in the pressure plate structure 23 is set as a hollow structure, and several liquid outlet holes are provided at the bottom. The lower pressure plate 231 is provided with a liquid inlet end, which is connected to a hose. The hose is connected to the output end of a water pump. The input end of the water pump is connected to a container for storing solvent. After the material is filled, the water pump can pump the solution into the lower pressure plate 231, and the solution is evenly sprayed onto the material through the lower pressure plate 231.

[0066] As another optional method in this embodiment, multiple liquid inlet pipes are provided on the peripheral side of the percolation tank 1 body 11, and the liquid inlet pipe heads are provided with nozzles. By adding solvent from multiple sides, the solvent can be added into the percolation tank 1 more evenly.

[0067] Please see Figure 5 In a preferred embodiment, the bottom of the grid plate 31 is provided with a storage groove 311, and the scraper 5 is rotatably installed inside the storage groove 311.

[0068] By setting up the storage slot 311, the scraper 5 can be stored, so that when multiple partition structures 3 are stacked, the partition structures 3 can fit together without gaps.

[0069] Drainage holes are provided in the storage groove 311 and on the scraper 5. Figure 5(not shown in the image), thus not affecting the downward flow of subsequent solvents.

[0070] Furthermore, the rotating shaft connecting the scraper 5 is installed in the storage groove 311, so that the angle of rotation of the scraper 5 can be limited by the groove wall of the storage groove 311.

[0071] Please see Figure 6 In a preferred embodiment, when the scraper 5 is rotated out of the storage groove 311, the scraper 5 is inclined.

[0072] The scraper 5 is set at an angle, that is, it is not perpendicular to the grid plate 31, and the angle of the scraper 5 rotating downward along the axis is less than ninety degrees.

[0073] Thus, after the scraper 5 rotates and scrapes the material horizontally, during the process of the pressing device 2 driving the separating structure 3 to press down the material, when the scraper 5 comes into contact with the material, because the scraper 5 is in an inclined state, the scraper 5 has an upward rotation tendency, so that the scraper 5 can automatically retract into the collection trough 311.

[0074] The angle at which the scraper 5 rotates downward is preferably 65°-85°.

[0075] Please refer to it again. Figure 6 As an optional embodiment, the partition structure 3 further includes a limiting shaft 35, which is installed in the storage groove 311. When the scraper 5 rotates out of the storage groove 311, the scraper 5 abuts against the limiting shaft 35 so that the scraper 5 is inclined.

[0076] The rotating scraper 5 is stopped by setting a limit shaft 35 to keep it in an inclined state.

[0077] As another optional method in this embodiment, the inner wall of the storage groove 311 near the rotating shaft can also be set to be inclined. When the scraper 5 is rotated out, one side of the scraper 5 is attached to the inclined groove wall, so that the scraper 5 and the grid plate 31 are inclined.

[0078] Please see Figure 3 and Figure 4 As an optional embodiment, the connection structure 4 includes a threaded shaft 41, a nut 42, and a rotating component 43. The threaded shaft 41 passes through the lower pressure plate 231 and multiple partition structures 3 in sequence. The nut 42 is installed on the lower pressure plate 231 and threadedly connected to the threaded shaft 41. The grid plate 31 is connected to the threaded shaft 41 through a threaded sleeve 33. The rotating component 43 is used to drive the threaded shaft 41 to rotate.

[0079] When it is necessary to separate the bottommost partition structure 3, the rotating component 43 drives the threaded shaft 41 to rotate clockwise. The threaded shaft 41, together with the nut 42 and the threaded sleeve 33, moves upward, causing the bottom end of the threaded shaft 41 to separate from the threaded sleeve 33 in the bottommost partition structure 3. Subsequent operations are then performed to separate the partition structures 3 in sequence.

[0080] As another optional embodiment, the connection structure 4 includes a rotating component 43, a rotating shaft, and multiple locking blocks. The rotating shaft is mounted on the output shaft of the motor 223, and the multiple locking blocks are spaced apart on the rotating shaft with a preset angle between adjacent locking blocks. The rotating shaft passes through the lower pressure plate 231 and multiple partition structures 3 in sequence, and the rotating shaft is rotatably connected to the lower pressure plate 231. The locking blocks are located below each partition structure 3, and the partition structure 3 has an unlocking hole at a preset angle to the corresponding locking block. When it is necessary to separate the bottommost partition structure 3, the rotating component 43 drives the rotating shaft to rotate by a preset angle, and the rotating shaft drives the multiple locking blocks to rotate by a preset angle. At this time, the bottommost locking block is aligned with the unlocking hole on the corresponding partition structure 3, so that the bottommost partition structure 3 can be separated. The subsequent operations are similar.

[0081] As an optional embodiment, the rotating component 43 includes a drive motor and a mounting bracket. The drive motor is mounted on the lower pressure plate 231 via the mounting bracket, and the threaded shaft 41 is connected to the output shaft of the drive motor.

[0082] Please see Figure 3 and Figure 9 As another optional embodiment, the rotating component 43 is a U-shaped frame, which is installed at the top of the threaded shaft 41. The connecting component 22 also includes a driving block 224, which is installed on the output shaft of the motor 223. The pressure plate structure 23 also includes two U-shaped sleeves 233, which are respectively installed on both sides of the inner wall of the rotating cylinder 232. The two ends of the driving block 224 are inserted into the two U-shaped sleeves 233. The rotating component 43 is located below the driving block 224. The connecting plate 222 is slidably installed in the assembly cylinder 221. The output shaft of the lifting cylinder 21 passes through the assembly cylinder 221 and is connected to the connecting plate 222.

[0083] The openings of the two U-shaped sleeves 233 are set opposite each other.

[0084] When the partition structure 3, in conjunction with the scraper 5, performs a leveling operation on the laid material, the two ends of the drive block 224 are correspondingly inserted into the two U-shaped sleeves 233, as follows: Figure 9(a) When the motor 223 is working, the drive block 224 drives the rotating cylinder 232 to rotate through the U-shaped sleeve 233. The rotating cylinder 232 drives the lower pressure plate 231 to rotate, thereby driving the scraper 5 to rotate through the partition structure 3 to perform a scraping operation on the material. During this process, when the lifting cylinder 21 extends downward, the connecting plate 222 moves downward, and the assembly cylinder 221, the lower pressure plate 231, the partition structure 3, etc. follow and move downward by gravity.

[0085] After the material is smoothed, the lifting cylinder 21 continues to move down. At this time, since the partition structure 3 has moved onto the material, the lifting cylinder 21 pushes the connecting plate 222 to drive the motor 223 to descend, causing the drive block 224 to move down and separate from the U-shaped sleeve 233, and insert into the rotating part 43 (U-shaped frame). At the same time, the lifting cylinder 21 continues to apply downward force, driving the partition structure 3 to press down the material through the connecting structure 4.

[0086] When it is necessary to separate the bottommost partition structure 3, the motor 223 drives the drive block 224 to rotate again. The drive block 224 drives the threaded shaft 41 to rotate through the rotating part 43 (U-shaped frame), so that it separates from the threaded sleeve 33 in the bottommost partition structure 3, thereby unlocking the bottommost partition structure 3. During this process, as the threaded shaft 41 gradually moves upward, the lifting cylinder 21 drives the motor 223 to rise adaptively through the connecting plate 222 to meet the distance requirements.

[0087] Thus, in one state, the motor 223, together with the drive block 224, can drive the partition structure 3 and the scraper 5 to flatten the laid material, and in another state, it can unlock the bottom partition structure 3. Furthermore, the two states can be switched during the process of the pressing device 2 and the partition structure 3 pressing down on the material.

[0088] The connecting disc 222 can slide along the inside of the assembly cylinder 221 for a distance not less than the sum of the thicknesses of the three partition structures 3.

[0089] Please refer to it again. Figure 9 As a preferred embodiment, the connector 22 further includes a positioning plate 225, which is mounted on the connecting plate 222 and suspended above the U-shaped sleeve 233.

[0090] By setting the positioning plate 225, when the drive block 224 is assembled with the rotating part 43 (U-shaped frame), the positioning plate 225 is inserted into the U-shaped sleeve 233, thereby limiting the axial movement of the rotating cylinder 232, that is, limiting the axial movement of the lower pressure plate 231, improving the stability of the lower pressure plate 231, and preventing the positioning plate 225 from having relative axial displacement when the threaded shaft 41 rotates.

[0091] In a preferred embodiment, the connecting structure 4 further includes an inverted L-shaped positioning shaft. One end of the inverted L-shaped positioning shaft passes through multiple partition structures 3 and the lower pressure plate 231 sequentially, and the other end of the inverted L-shaped positioning shaft is rotatably connected to the top end of the threaded shaft 41 via a rotating component. The L-shaped positioning shaft axially limits the multiple partition structures 3 relative to the lower pressure plate 231, preventing relative axial rotation of the multiple partition structures 3 when the threaded shaft 41 rotates. Furthermore, by rotatably connecting the L-shaped positioning shaft to the threaded shaft 41, it can move upwards along with the threaded shaft 41, preventing the bottom end from extending below the partition structures 3. The rotating component can be a bearing, etc.

[0092] Please see Figure 4 In a preferred embodiment, the partition structure 3 further includes a plurality of elastic sheets 34, the grid plate 31 is provided with an assembly hole 312, the threaded sleeve 33 is installed in the assembly hole 312, the plurality of elastic sheets 34 are installed around the assembly hole 312, and the filter layer 32 is divided into multiple pieces corresponding to the position of the assembly hole 312 and is connected to each elastic sheet 34.

[0093] By setting the elastic sheet 34, when the separator structure 3 is installed on the threaded shaft 41, the threaded shaft 41 pushes multiple elastic sheets 34 to cause the corresponding part of the filter layer 32 to be recessed downward into the assembly hole 312, located above the threaded sleeve 33. When the separator structure 3 is separated from the threaded shaft 41, the elastic potential energy of the elastic sheet 34 causes the corresponding part of the filter layer 32 to rotate upward and lift up, blocking the assembly hole 312 and preventing the solvent from flowing out directly through the assembly hole 312.

[0094] When the multiple elastic sheets 34 are unfolded, they form a circle that matches the size of the mounting hole 312. The filter layer 32 is provided with multiple parts that are the same shape as the elastic sheets 34, and the multiple parts follow the unfolding of the elastic sheets 34 to form a circle that matches the mounting hole 312.

[0095] Among them, the elastic sheet 34 can be a rubber sheet, a plastic sheet, etc.

[0096] In this invention, a bracket 7 is provided for supporting the installation of the percolation tank 1.

[0097] The working principle of the percolation device provided by this invention is as follows:

[0098] During use, after laying a layer of material inside the percolation tank 1, the lifting cylinder 21 pushes down the pressure plate structure 23 via the connecting piece 22, causing the partition structure 3 to move downwards. During this downward movement, the motor 223 operates, and the drive block 224 drives the rotating cylinder 232 to rotate via the U-shaped sleeve 233. The rotating cylinder 232 drives the lower pressure plate 231 to rotate, and the lower pressure plate 231 drives the scraper 5 to rotate along with it via the partition structure 3. After the scraper 5 interacts with the raised material in the middle, it pushes the material to a lower position on the material surface, gradually making the raised material surface tend to be horizontal. Figure 7 (b) After the material is smoothed, the lifting cylinder 21 continues to move down. At this time, since the partition structure 3 has moved onto the material, the lifting cylinder 21 pushes the connecting plate 222 to drive the motor 223 to descend, so that the drive block 224 moves down and separates from the U-shaped sleeve 233, and inserts into the rotating part 43 (U-shaped frame). At the same time, the lifting cylinder 21 continues to apply downward force, and through the connecting structure 4, it drives the partition structure 3 to press down the material.

[0099] Subsequently, the motor 223 drives the drive block 224 to rotate again. The drive block 224 drives the threaded shaft 41 to rotate through the rotating part 43 (U-shaped frame), so that it separates from the threaded sleeve 33 in the bottommost partition structure 3, thereby unlocking the bottommost partition structure 3 and placing the partition structure 3 above the material. During this process, as the threaded shaft 41 gradually moves upward, the lifting cylinder 21 drives the motor 223 to rise adaptively through the connecting plate 222 to meet the distance requirements.

[0100] Then lay another layer of material and repeat the same process.

[0101] Thus, in one state, the motor 223, together with the drive block 224, can drive the partition structure 3 and the scraper 5 to flatten the laid material, and in another state, it can unlock the bottom partition structure 3. Furthermore, the two states can be switched during the process of the pressing device 2 and the partition structure 3 pressing down on the material.

[0102] In this invention, the percolation device can be used for the extraction of traditional Chinese medicine, the extraction of plant polyphenols (such as grape seed polyphenols and tea polyphenols), or the extraction of aromatic components (such as the synergistic extraction of volatile oils and polyphenols from roses and peppermint).

[0103] When the percolation device is used for the extraction of traditional Chinese medicine:

[0104] The present invention also provides a method for preparing Phyllanthus emblica extract.

[0105] Please see Figure 10 The preparation method of the amla extract includes the following steps:

[0106] S1. Take the Phyllanthus emblica and coarsely crush it. Soak it in 4 times the amount of water for at least 3 hours.

[0107] S2. Place the soaked medicinal materials into the percolation device, use a preset amount of solvent for percolation, and collect the percolate.

[0108] S3. The percolate is adsorbed through macroporous resin and then eluted with 4 BV of water and 4 BV of 60% ethanol in sequence.

[0109] S4. Combine the obtained column liquid and washing liquid and separate them sequentially through a ceramic membrane and an ultrafiltration membrane to obtain the small molecule functional sugar fraction of Phyllanthus emblica. Decolorize the small molecule functional sugar fraction with activated carbon, and then concentrate and dry to obtain the decolorized small molecule functional sugar fraction.

[0110] S5. Use 60% ethanol solution to elute the polyphenolic substances adsorbed on the macroporous resin, and then concentrate and dry to obtain the polyphenol fraction of Phyllanthus emblica.

[0111] S6. The target product is obtained by combining the decolorized small molecule functional sugar portion and the polyphenol portion.

[0112] The specific operating steps, taking 800g of Phyllanthus emblica as an example, are as follows: Take 800g of Phyllanthus emblica, coarsely crush it, soak it in 4 times the amount of water for 3 hours, place it in a percolation device, percolate it with 6-8 times the amount of water, collect the percolate, and adsorb it through 1.5kg of D101 macroporous resin. After loading the sample, elute it sequentially with 4BV distilled water and 4BV 60% ethanol. Combine the column runoff and the washing liquid, and separate them sequentially through a ceramic membrane and a 3000D ultrafiltration membrane. Concentrate the ultrafiltration permeate to a specific gravity of 1.15±0.02 (55~60℃), with a vacuum degree of -0.06~-0.08 MPa and a temperature of 55~60℃. Add 15g of activated carbon and decolorize at 60℃ for 3 hours. Filter to obtain the filtrate, and vacuum dry the filtrate at a vacuum degree of -0.07~-0.1 MPa, a drying temperature of 55~60℃, and a drying time of 3~5 minutes. h, after drying, pulverize to obtain decolorized small molecule functional sugars; concentrate the 60% alcohol eluent from macroporous resin to a specific gravity of 1.15±0.02 (55~60℃), vacuum degree of -0.06~-0.08 MPa, temperature of 55~60℃, then vacuum dry at a vacuum degree of -0.07~-0.1 MPa, drying temperature of 55~60℃, drying time of 3~5h, and after drying, pulverize and dry to obtain the polyphenol fraction of Phyllanthus emblica; finally, mix the decolorized small molecule functional sugar fraction and the polyphenol fraction in a ratio of (6:1-10:1) to obtain a small molecule functional sugar and polyphenol composition.

[0113] The lower column liquid is the portion of the component that was not adsorbed by the D101 macroporous resin and flows out from the bottom with the liquid.

[0114] The washing solution is obtained by eluting the resin column with distilled water to wash away impurities that are not firmly adsorbed on the resin surface.

[0115] Among them, the combination of small molecule functional sugars and polyphenols is light in color, making it convenient to add to cosmetics;

[0116] The small molecule functional sugar and polyphenol composition contains small molecule sugars, amino acids, and polyphenols. It has a moisturizing effect by upregulating the expression of aquaporin 3 (AQP3) and also has an anti-aging effect.

[0117] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A percolation device, characterized in that, include: Percolation tank; The pressing device includes a lifting cylinder, a connecting piece, and a pressure plate structure. The lifting cylinder is installed in the percolation tank, and the pressure plate structure is installed at the output end of the lifting cylinder through the connecting piece and is located inside the percolation tank. Multiple partition structures are stacked and installed at the bottom of the pressure plate structure by a connecting structure. Each partition structure includes a grid plate and a filter layer, with the filter layer installed on top of the grid plate. During loading, materials are laid in multiple layers inside the percolation tank. The pressing device pushes down the partition structure to press down each layer of material in sequence. The connecting structure unlocks the partition structure at the bottom each time, so that the partition structure falls on each layer of material. The connector includes an assembly cylinder, a connecting plate, a motor, and a drive block. The motor is installed inside the assembly cylinder via the connecting plate. The pressure plate structure includes a lower pressure plate, a rotating cylinder, and two U-shaped sleeves. The rotating cylinder is installed on the top of the lower pressure plate and is rotatably connected to the assembly cylinder. The output end of the motor is detachably connected to the rotating cylinder. The partition structure is installed on the lower pressure plate via the connecting structure. The connection structure includes a threaded shaft, a nut, and a rotating component. The threaded shaft passes through the lower pressure plate and multiple partition structures in sequence. The nut is installed on the lower pressure plate and threadedly connected to the threaded shaft. The grid plate is connected to the threaded shaft through a threaded sleeve. The rotating component is used to drive the threaded shaft to rotate. The rotating component is a U-shaped frame, which is installed at the top of the threaded shaft. The driving block is installed on the output shaft of the motor. The two U-shaped sleeves are respectively installed on both sides of the inner wall of the rotating cylinder. The two ends of the driving block are inserted into the two U-shaped sleeves respectively. The rotating component is located below the driving block. The connecting plate is slidably installed in the assembly cylinder. The output shaft of the lifting cylinder passes through the assembly cylinder and is connected to the connecting plate.

2. The percolation apparatus according to claim 1, characterized in that, The percolation device also includes a scraper, which is rotatably mounted at the bottom center of the grid plate, and the angle at which the scraper can rotate is no more than ninety degrees.

3. The percolation apparatus according to claim 2, characterized in that, The bottom of the grid plate has a storage groove, and the scraper is rotatably installed inside the storage groove.

4. The percolation apparatus according to claim 3, characterized in that, After the scraper rotates and moves out of the storage slot, the scraper is set at an angle.

5. The percolation apparatus according to claim 4, characterized in that, The partition structure also includes a limiting shaft, which is installed in the storage groove. When the scraper rotates out of the storage groove, the scraper abuts against the limiting shaft so that the scraper is inclined.

6. The percolation apparatus according to claim 1, characterized in that, The connector also includes a positioning plate, which is mounted on the connecting plate and suspended above the U-shaped sleeve.

7. The percolation apparatus according to claim 6, characterized in that, The separation structure also includes multiple elastic sheets. The grid plate has assembly holes. The threaded sleeve is installed in the assembly holes. The multiple elastic sheets are installed around the assembly holes. The filter layer is divided into multiple pieces corresponding to the positions of the assembly holes and is connected to each elastic sheet.

8. A method for preparing an extract of Phyllanthus emblica, characterized in that, Includes the following steps: S1. Take the Phyllanthus emblica and coarsely crush it. Soak it in 4 times the amount of water for at least 3 hours. S2. Place the soaked medicinal materials into the percolation device as described in any one of claims 1-7, percolate using a preset amount of solvent, and collect the percolate. S3. The percolate is adsorbed through macroporous resin and then eluted with 4 BV of water and 4 BV of 60% ethanol in sequence. S4. Combine the obtained column liquid and washing liquid and separate them sequentially through a ceramic membrane and an ultrafiltration membrane to obtain the small molecule functional sugar fraction of Phyllanthus emblica. Decolorize the small molecule functional sugar fraction with activated carbon, and then concentrate and dry to obtain the decolorized small molecule functional sugar fraction. S5. Use 60% ethanol solution to elute the polyphenolic substances adsorbed on the macroporous resin, and then concentrate and dry to obtain the polyphenol fraction of Phyllanthus emblica. S6. The target product is obtained by combining the decolorized small molecule functional sugar portion and the polyphenol portion.

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