Percolation device and preparation method of phyllanthus emblica extract

Abstract

The invention provides a percolation device and a preparation method of a phyllanthus emblica extract. The percolation device comprises a percolation tank, a pressing device and a plurality of separation structures, the preparation method of the emblic leafflower fruit extract comprises the following steps: firstly, coarsely crushing and soaking an emblic leafflower fruit medicinal material, then percolating the emblic leafflower fruit medicinal material in a percolating device, and collecting percolate; the preparation method comprises the following steps: extracting a percolate, adsorbing the percolate through macroporous resin, eluting with water and ethanol in sequence, combining an obtained lower column liquid and a water washing liquid, separating through a ceramic membrane and an ultrafiltration membrane in sequence to obtain a micromolecular functional sugar part, decolorizing with activated carbon, eluting with an ethanol solution, concentrating and drying to obtain a polyphenol part, and proportioning to obtain a target product. According to the technical scheme provided by the invention, active micromolecular functional sugar and polyphenol components in the phyllanthus emblica can be extracted and enriched at one time. The extract is light in color and good in solubility, so that the problems of single extracted component and inconvenience in application due to poor color and solubility in the traditional process are effectively solved.

Description

Technical Field

[0001] The invention relates to the field of percolation, and in particular to a percolation device and a preparation method of an emblica extract. Background Art

[0002] Percolator is a solid-liquid extraction equipment commonly used in the fields of traditional Chinese medicine extraction, natural product separation, etc. It achieves continuous extraction and separation of effective ingredients by allowing the solvent to flow from top to bottom through the material powder bed.

[0003] During the percolation operation, the crushed and soaked material is laid inside the percolator. During the laying process, in order to better eliminate bubbles between the materials and form a relatively consistent pore structure between the materials, thereby improving the percolation efficiency, the materials are usually laid layer by layer. After laying a layer of material, a compacting device is used to press the material down. After the material is filled, a solvent is added to the percolator, allowing the solvent to flow through the material and remove the required material components. 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, which increases the solvent consumption and high recovery energy consumption.

[0004] Therefore, it is necessary to provide a percolation device and a preparation method of the emblica extract to solve the above technical problems. Summary of the Invention

[0005] The invention provides a percolation device, which solves the problem that the solvent in the percolation device flows downward by gravity, so that the contact time between the solvent and the material is short during the solvent addition stage, which increases the solvent consumption.

[0006] In order to solve the above technical problems, the present invention provides a percolation device, comprising: a percolation tank; A downward pressing device, comprising a lifting cylinder, a connecting member, and a pressing plate structure, wherein the lifting cylinder is mounted on the percolation tank, and the pressing plate structure is mounted on the output end of the lifting cylinder via the connecting member and is located inside the percolation tank; A plurality of partition structures, wherein the plurality of partition structures are stacked and installed on the bottom of the pressure plate structure through a connecting structure, the partition structure comprising a grid plate and a filter layer, and the filter layer is installed on top of the grid plate; During loading, materials are laid out in layers inside the percolation tank, and the pressing device pushes down the partition structure to press down each layer of materials in turn. The connecting structure unlocks the partition structure at the bottom each time, so that the partition structure falls on each layer of materials accordingly.

[0007] 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.

[0008] Preferably, the bottom of the grid plate is provided with a receiving groove, and the scraper is rotatably installed in the receiving groove.

[0009] Preferably, when the scraper rotates out of the receiving groove, the scraper is arranged in an inclined manner.

[0010] 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.

[0011] 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.

[0012] 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.

[0013] Preferably, the connecting member further comprises a positioning plate, which is installed on the connecting disc and suspended above the U-shaped sleeve.

[0014] 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.

[0015] The application also provides a preparation method of the phyllium extract, which comprises the following steps: S1, the crude crushing of Phyllanthus emblica medicinal materials, using 4 times the medicinal material amount of water to soak at least 3h; S2, the soaked medicinal materials are placed in the described percolation device, and a predetermined amount of solvent is used for percolation, and the percolate is collected; S3, the percolate is adsorbed by macroporous resin, and then eluted with 4BV water and 4BV 60% ethanol in turn; S4, the obtained lower column liquid and water washing liquid are combined and separated by ceramic membrane and ultrafiltration membrane in turn to obtain Phyllanthus emblica small molecule functional sugar part, the small molecule functional sugar part is decolorized with activated carbon, and then concentrated and dried to obtain the decolorized small molecule functional sugar part; S5, using 60% ethanol solution to elute the polyphenol substances adsorbed on the macroporous resin, and then concentrated and dried to obtain the Phyllanthus emblica polyphenol part; S6, the decolorized small molecule functional sugar part and the polyphenol part are matched to obtain the target product.

[0016] Compared with the related art, the percolation device provided by the present application has the following beneficial effects: The percolation device provided by the present application, when in use, a layer of material is laid on the filter screen in the percolation tank, then the lower pushing device pushes the separation structure down, the grid plate pushes the material down, and a relatively uniform pore structure is formed between the materials, then the connecting structure unlocks the lowermost separation structure, and the separation structure falls on the material, then a layer of material is laid again, and the subsequent operation is the same, after adding the solvent, the flow rate of the solvent is slowed down by the filter layer, 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

[0017] Figure 1 The structure diagram of the percolation device provided by the present application; Figure 2 The sectional view of the percolation device provided by the present application; Figure 3 The partial schematic view of the lower pushing device and the separation structure provided by the present application; Figure 4 The assembly schematic view of the connecting structure and the separation structure provided by the present application; Figure 5 The bottom view of the separation structure provided by the present application; Figure 6 The sectional view of the separation structure provided by the present application; Figure 7 The working state schematic view of the scraper provided by the present application, wherein, Figure 7 (a) is a schematic view of the state that the material is added to the percolation tank to form a raised position of the material;Figure 7 (b) is the schematic view of the material top relative to the scraping state after the scraper rotates; Figure 8 The working state schematic view of the separation structure provided by the application is laid on the material, wherein, Figure 8 (a) is the schematic view of the pressing device driving the separation structure to press the material, Figure 8 (b) is the schematic view of unlocking the lowest separation structure to be located on the material top; Figure 9 The enlarged schematic view provided by the application is shown in the figure, wherein, Figure 9 (a) is Figure 7 the enlarged schematic view of A in (a), Figure 9 (b) is Figure 8 the enlarged schematic view of B in (a); Figure 10 The step block diagram of the preparation method of the phyllium extract provided by the application is shown in the figure.

[0018] Figure mark: 1, percolation tank; 11, tank body; 12, tank cover; 13, tank bottom; 14, liquid outlet pipe; 15, feed pipe; 2, pressing device; 21, lifting cylinder; 22, connecting piece; 23, pressing plate structure; 221, assembly cylinder; 222, connecting disc; 223, motor; 224, driving block; 225, positioning plate; 231, pressing plate; 232, rotating cylinder; 233, U-shaped sleeve; 3, separation structure; 31, grid plate; 32, filter layer; 33, threaded sleeve; 34, elastic sheet; 35, limiting shaft; 311, storage groove; 312, assembly hole; 4, connecting structure; 41, threaded shaft; 42, nut; 43, rotating piece; 5, scraper; 6, filter screen; 7, support. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the application will be described clearly and completely in the embodiments of the application in combination with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the application.

[0020] The application provides a percolation device.

[0021] Please refer to Figure 1 and Figure 2In an embodiment of the present application, the percolation device comprises a percolation tank 1; A pressing device 2, which comprises a lifting cylinder 21, a connecting piece 22 and a pressing plate structure 23, the lifting cylinder 21 is installed on the percolation tank 1, the pressing plate structure 23 is installed on the output end of the lifting cylinder 21 through the connecting piece 22 and is located inside the percolation tank 1; A plurality of separation structures 3, which are stacked and installed on the bottom of the pressing plate structure 23 through connecting structures 4, the separation structure 3 comprises a grid plate 31 and a filter layer 32, the filter layer 32 is installed on the top of the grid plate 31; When loading, a plurality of layers of materials are sequentially laid in the percolation tank 1, the separation structure 3 is sequentially pressed by the pressing device 2, the connecting structure 4 is unlocked for the separation structure 3 at the bottom each time, so that the separation structure 3 falls on each layer of materials.

[0022] In the present application, the percolation tank 1 comprises a tank body 11, a tank cover 12, a tank bottom 13, a liquid outlet pipe 14, a feeding pipe 15 and the like, wherein the tank cover 12 and the tank bottom 13 are detachably installed on the top and the bottom end of the tank body 11, the tank bottom 13 and the tank cover 12 are removed to facilitate the discharge of filter residue and the cleaning of the percolation tank 1, the liquid outlet pipe 14 is used for percolating the solution, a valve is arranged on the liquid outlet pipe 14 to control the flow rate, the feeding pipe 15 is used for adding materials, the filter screen 6 is arranged in the percolation tank 1 and located on the tank bottom 13, and of course, the percolation tank 1 further comprises an air pressure valve, an exhaust structure and the like; In use, a layer of material is laid on the filter screen 6 in the percolation tank 1, then the separation structure 3 is pushed down by the pressing device 2, the grid plate 31 presses the material to form a relatively uniform pore structure between the materials, then the connecting structure 4 is unlocked for the separation structure 3 at the bottom to make the separation structure 3 fall on the material, then a layer of material is laid, and the subsequent operation is the same, after adding the solvent, the flow rate of the solvent is slowed down by the filter layer 32 through the plurality of separation structures 3, 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 making the solution carry out the components on the material more quickly and reduce the use of the solvent.

[0023] In the present embodiment, the filter layer 32 can be filter cloth, filter membrane or absorbent cotton and the like, and the grid plate 31 is a porous plate with a pore diameter smaller than the diameter of the material.

[0024] The number of the separation structures 3 is not less than three according to the size of the percolation tank 1.

[0025] The lifting cylinder 21 can be an air cylinder, a hydraulic cylinder or an electric push rod and the like.

[0026] Please refer to Figure 5and Figure 6 As a preferred mode of the embodiment, the percolation device further comprises a scraper 5 rotatably mounted in the middle of the bottom of the grid plate 31, and the scraper 5 can rotate by an angle of not more than ninety degrees, the connecting member 22 comprises an assembly cylinder 221, a connecting disc 222 and a motor 223, the motor 223 is mounted in the assembly cylinder 221 through the connecting disc 222, the pressing plate structure 23 comprises a lower pressing plate 231 and a rotating cylinder 232, the rotating cylinder 232 is mounted at the top end of the lower pressing plate 231, and the rotating cylinder 232 is rotatably connected with the assembly cylinder 221, the output end of the motor 223 is detachably connected with the rotating cylinder 232, and the separation structure 3 is mounted on the lower pressing plate 231 through the connecting structure 4.

[0027] When the material is added into the percolation tank 1, the material needs to be uniformly laid; When the material is added into the percolation tank 1 through the feeding pipe 15 by the spiral feeding equipment or other feeding equipment, the material is prone to be higher on one side and lower on the other side, such as Figure 7 (a), so that it is not convenient to press the material to form a relatively consistent pore structure between the materials.

[0028] By setting the scraper 5, after laying a layer of material in the percolation tank 1, the lifting cylinder 21 pushes down the pressing plate structure 23 through the connecting member 22 and drives the separation structure 3 to move downward, in the process of moving downward, the motor 223 drives the rotating cylinder 232 to rotate, the rotating cylinder 232 rotates through the lower pressing plate 231, the lower pressing plate 231 drives the separation structure 3 to rotate through the connecting member 22, the separation structure 3 drives the scraper 5 to rotate, after the scraper 5 acts on the material in the middle of the protrusion, the material is pushed to move to the position where the material surface is lower, so that the protruding material surface gradually tends to be horizontal, such as Figure 7 (b), then the motor 223 stops working, and the lifting cylinder 21 continues to move downward, so that the separation structure 3 can press the material, thereby making the material more uniformly enter the percolation tank 1.

[0029] By rotatably mounting the scraper 5 at the bottom of the grid plate 31, when stacking multiple separation structures 3, the scraper 5 can be arranged in close contact with the grid plate 31, when there is no other separation structure 3 supporting below the separation structure 3, the scraper 5 rotates downward by gravity and is arranged at a preset angle with the grid plate 31.

[0030] By setting the rotatable angle of the scraper 5 to be not more than ninety degrees, when the material is horizontally scraped, the rotating direction of the lower pressing plate 231 is the direction in which the scraper 5 cannot rotate, thereby avoiding the rotation of the scraper 5 due to the action force of the material.

[0031] As an optional mode of the embodiment, the lower pressing plate 231 in the pressing plate structure 23 is provided as a hollow structure, and a plurality of liquid outlet holes are arranged at the bottom of the lower pressing plate 231. An inlet end is arranged on the lower pressing plate 231, and the inlet end is connected with a hose. The hose is connected with an output end of a water pump. An input end of the water pump is communicated with a container for storing solvent. After the material is filled, the water pump can pump the solution into the lower pressing plate 231. The solution is uniformly sprayed on the material through the lower pressing plate 231.

[0032] As another optional mode of the embodiment, a plurality of liquid inlet pipes are arranged on the peripheral side of the tank body 11 of the percolation tank 1. Nozzles are arranged at the heads of the liquid inlet pipes. The solvent can be more uniformly added into the percolation tank 1 by adding the solvent from multiple surfaces.

[0033] Please refer to Figure 5 As a preferred mode of the embodiment, a receiving groove 311 is arranged at the bottom of the grid plate 31. The scraper 5 is rotatably arranged in the receiving groove 311.

[0034] The scraper 5 can be received by the receiving groove 311. When a plurality of separation structures 3 are stacked, the separation structures 3 can be attached to each other without gaps.

[0035] Corresponding water infiltration holes are arranged in the receiving groove 311 and the scraper 5 (not shown in the figure), so as not to affect the downward flow of the subsequent solvent. Figure 5

[0036] The rotating shaft connected with the scraper 5 is arranged in the receiving groove 311. The angle of rotation of the scraper 5 can be limited by the groove wall of the receiving groove 311.

[0037] Please refer to Figure 6 As a preferred mode of the embodiment, when the scraper 5 is rotated out of the receiving groove 311, the scraper 5 is arranged in an inclined manner.

[0038] The scraper 5 is arranged in an inclined manner, that is, the scraper 5 is not perpendicular to the grid plate 31. The angle of downward rotation of the scraper 5 is less than ninety degrees.

[0039] Therefore, after the material is scraped by the scraper 5, when the separation structure 3 is pressed down by the pressing device 2 during the process of pressing down the material, the scraper 5 has a tendency to rotate upward when the scraper 5 contacts the material, so that the scraper 5 can be automatically received in the receiving groove 311.

[0040] Preferably, the angle of downward rotation of the scraper 5 is 65°-85°.

[0041] Please refer to Figure 6 ​As an optional mode of the embodiment, the separating structure 3 further comprises a limiting shaft 35 installed in the receiving groove 311, and when the scraper 5 rotates out of the receiving groove 311, the scraper 5 abuts against the limiting shaft 35, so that the scraper 5 is arranged in an inclined manner.

[0042] The limiting shaft 35 is arranged to abut against the rotating scraper 5, so that the scraper 5 is kept in an inclined state.

[0043] As another optional mode of the embodiment, the inner wall of the receiving groove 311 near the rotating shaft can be arranged in an inclined manner, and when the scraper 5 rotates out, one side of the scraper 5 abuts against the inclined groove wall, so that the scraper 5 and the grid plate 31 are arranged in an inclined manner.

[0044] As shown in Figure 3 and Figure 4 As an optional mode of the embodiment, the connecting structure 4 comprises a threaded shaft 41, a nut 42 and a rotating member 43, the threaded shaft 41 penetrates the pressing plate 231 and the separating structures 3 in sequence, the nut 42 is installed on the pressing plate 231 and is threadedly connected with the threaded shaft 41, the grid plate 31 is connected with the threaded shaft 41 through a threaded sleeve 33, and the rotating member 43 is used to drive the threaded shaft 41 to rotate.

[0045] When it is needed to separate the lowermost separating structure 3, the rotating member 43 drives the threaded shaft 41 to rotate clockwise, the threaded shaft 41 moves upward in cooperation with the nut 42 and the threaded sleeve 33, so that the bottom end of the threaded shaft 41 is separated from the threaded sleeve 33 in the lowermost separating structure 3, and subsequent operations are sequentially performed to realize the sequential separation of the separating structures 3.

[0046] As another optional mode of the embodiment, the connecting structure 4 comprises a rotating member 43, a rotating shaft and a plurality of clamping blocks, the rotating shaft is installed on the output shaft of the motor 223, the clamping blocks are installed on the rotating shaft at intervals, and the adjacent clamping blocks are separated by a preset angle, wherein the rotating shaft penetrates the pressing plate 231 and the separating structures 3 in sequence, and the rotating shaft is rotationally connected with the pressing plate 231, the clamping blocks are arranged below each separating structure 3, and the unlocking holes are arranged on the separating structures 3 at a preset angle corresponding to the clamping blocks, when it is needed to separate the lowermost separating structure 3, the rotating member 43 drives the rotating shaft to rotate by a preset angle, and the rotating shaft drives the clamping blocks to rotate by a preset angle, at this time, the lowermost clamping block is aligned with the unlocking hole on the corresponding separating structure 3, so that the lowermost separating structure 3 can be separated, and subsequent operations are the same.

[0047] As an optional mode of the embodiment, the rotating member 43 comprises a driving motor and a mounting frame, the driving motor is installed on the pressing plate 231 through the mounting frame, and the threaded shaft 41 is connected with the output shaft of the driving motor.

[0048] Please refer to Figure 3 and Figure 9 As another optional mode of the embodiment, the rotating member 43 is a U-shaped frame, the rotating member 43 is installed at the top end of the threaded shaft 41, the connecting member 22 further comprises a driving block 224, the driving block 224 is installed at the output shaft of the motor 223, the pressing plate structure 23 further comprises two U-shaped sleeves 233, the two U-shaped sleeves 233 are respectively installed at the two sides of the inner wall of the rotating cylinder 232, the two ends of the driving block 224 are correspondingly inserted into the two U-shaped sleeves 233, the rotating member 43 is located below the driving block 224, the connecting disc 222 is slidingly installed in the assembling cylinder 221, and the output shaft of the lifting cylinder 21 penetrates through the assembling cylinder 221 and is connected with the connecting disc 222.

[0049] The openings of the two U-shaped sleeves 233 are oppositely arranged.

[0050] When the separating structure 3 cooperates with the scraper 5 to perform the scraping operation on the laid material, at this time, the two ends of the driving block 224 are correspondingly inserted into the two U-shaped sleeves 233, as shown in Figure 9 (a), the motor 223 works, the driving block 224 drives the rotating cylinder 232 to rotate through the U-shaped sleeve 233, the rotating cylinder 232 drives the lower pressing plate 231 to rotate, thereby driving the scraper 5 to rotate through the separating structure 3 to perform the scraping operation on the material; in this process, when the lifting cylinder 21 extends downward, the connecting disc 222 moves downward, and the assembling cylinder 221 and the lower pressing plate 231, the separating structure 3 and the like move downward by gravity; After the material is smoothed, the lifting cylinder 21 continues to move downward, at this time, since the separating structure 3 has been located on the material, the lifting cylinder 21 drives the connecting disc 222 to drive the motor 223 to descend, so that the driving block 224 moves downward and is separated from the U-shaped sleeve 233 and is inserted into the rotating member 43 (U-shaped frame), and the lifting cylinder 21 continues to apply force downward to drive the separating structure 3 to press the material through the connecting structure 4; When the lowermost separating structure 3 needs to be separated subsequently, the motor 223 drives the driving block 224 to rotate again, the driving block 224 drives the threaded shaft 41 to rotate through the rotating member 43 (U-shaped frame), so that the threaded shaft 41 is separated from the threaded sleeve 33 in the lowermost separating structure 3, thereby achieving the unlocking of the lowermost separating structure 3, and in this process, since the threaded shaft 41 gradually moves upward, the lifting cylinder 21 drives the motor 223 to adaptively ascend through the connecting disc 222 to meet the distance requirement.

[0051] Therefore, the motor 223 cooperates with the driving block 224 to achieve the driving of the separating structure 3 to cooperate with the scraper 5 to perform the scraping operation on the laid material in one state, and to unlock the lowermost separating structure 3 in another state, and to achieve the switching between the two states in the process of the pressing device 2 cooperating with the separating structure 3 to press the material.

[0052] Wherein, the stroke of the connecting disc 222 sliding along the inside of the assembling cylinder 221 is not less than the sum of the thickness values of the three partition structures 3.

[0053] Please refer to Figure 9 , as a preferred way of the embodiment, the connecting piece 22 further comprises a positioning plate 225, which is installed on the connecting disc 222 and suspended above the U-shaped sleeve 233.

[0054] By setting the positioning plate 225, when the driving block 224 is assembled with the rotating piece 43 (U-shaped frame), the positioning plate 225 is inserted into the U-shaped sleeve 233 at this time, so as to axially limit the rotating cylinder 232, that is, axially limit the lower pressing plate 231, improve the stability of the lower pressing plate 231, and avoid the relative axial displacement of the positioning plate 225 when the threaded shaft 41 rotates.

[0055] As a preferred way of the embodiment, the connecting structure 4 further comprises an inverted L-shaped positioning shaft, one end of the inverted L-shaped positioning shaft penetrates the plurality of partition structures 3 and the lower pressing plate 231 in turn, and the other end of the inverted L-shaped positioning shaft is rotatably connected with the top end of the threaded shaft 41 through a rotating piece. The L-shaped positioning shaft axially limits the plurality of partition structures 3 relative to the lower pressing plate 231, avoiding the relative axial rotation of the plurality of partition structures 3 when the threaded shaft 41 rotates. By rotatably connecting the L-shaped positioning shaft with the threaded shaft 41, the L-shaped positioning shaft can move upward with the threaded shaft 41, avoiding the bottom end extending below the partition structure 3. The rotating piece can be a bearing or the like.

[0056] Please refer to Figure 4 , as a preferred way of the embodiment, the partition structure 3 further comprises a plurality of elastic sheets 34, the grid plate 31 is provided with an assembling hole 312, the threaded sleeve 33 is installed in the assembling hole 312, and the plurality of elastic sheets 34 are installed around the assembling hole 312. The filter layer 32 is divided into multiple pieces at the position corresponding to the assembling hole 312 and is connected with each elastic sheet 34.

[0057] By setting the elastic sheet 34, when the partition structure 3 is installed on the threaded shaft 41, the threaded shaft 41 pushes the plurality of elastic sheets 34 to drive the corresponding part of the filter layer 32 to be concave downward into the assembling hole 312, which is above the threaded sleeve 33. When the partition structure 3 is separated from the threaded shaft 41, the elastic potential energy of the elastic sheet 34 drives the corresponding part of the filter layer 32 to rotate upward and lift, thereby blocking the assembling hole 312, avoiding the solvent flowing out directly through the assembling hole 312.

[0058] The plurality of elastic sheets 34 form a circle when flattened, which is suitable for the size of the assembly hole 312, and the plurality of portions of the filter layer 32 corresponding to the elastic sheets 34 are provided with a plurality of portions in the same shape as the elastic sheets 34, which form a circle suitable for the assembly hole 312 when the plurality of elastic sheets 34 are flattened.

[0059] The elastic sheet 34 can be a rubber sheet, a plastic sheet or the like.

[0060] In the present application, the support 7 is arranged to mount and support the percolation tank 1.

[0061] The working principle of the percolation device provided by the present application is as follows: In use, after a layer of material is laid in the percolation tank 1, the lifting cylinder 21 pushes down the pressing plate structure 23 through the connecting piece 22 and drives the separation structure 3 to move downward, in the process of moving downward, the motor 223 works, the driving block 224 drives the rotating cylinder 232 to rotate through the U-shaped sleeve 233, the rotating cylinder 232 drives the lower pressing plate 231 to rotate, the lower pressing plate 231 drives the scraper 5 to rotate through the separation structure 3, after the scraper 5 acts on the material in the middle of the raised material, the material is pushed to the position where the material surface is lower, so that the raised material surface gradually tends to be horizontal, as shown in Figure 7 (b), after the material is flattened, the lifting cylinder 21 continues to move downward, at this time, since the separation structure 3 has been located on the material, the lifting cylinder 21 drives the connecting disc 222 to drive the motor 223 to descend, so that the driving block 224 moves downward and separates from the U-shaped sleeve 233, and is inserted into the rotating part 43 (U-shaped frame), at the same time, the lifting cylinder 21 continues to apply force downward, drives the separation structure 3 to press the material through the connecting structure 4; The subsequent motor 223 drives the driving block 224 to rotate again, the driving 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 lowermost separation structure 3, and the lowermost separation structure 3 is unlocked, so that the separation structure 3 is located above the material, in this process, since the threaded shaft 41 gradually moves upward, the lifting cylinder 21 drives the motor 223 to ascend adaptively through the connecting disc 222, so as to meet the distance requirement; Subsequently, a layer of material is laid again, and the operation is repeated accordingly; Therefore, the motor 223 cooperates with the driving block 224 to drive the separation structure 3 to cooperate with the scraper 5 to flatten the laid material in one state, and to unlock the lowermost separation structure 3 in the other state, and the two states are switched in the process of pressing the material by the pressing device 2 cooperating with the separation structure 3.

[0062] In the present application, the percolation device can be used for traditional Chinese medicine extraction, plant polyphenol extraction (such as grape seed polyphenol extraction, tea polyphenol extraction) or aromatic component extraction (such as the synergistic extraction of volatile oil and polyphenol from rose flowers, peppermint and the like).

[0063] When the said percolation device is applied to traditional Chinese medicine extraction: The application also provides a preparation method of the phyllium extract.

[0064] Please refer to Figure 10 , the preparation method of the phyllium extract, comprising the following steps: S1, taking the phyllium medicinal material and coarsely crushing it, soaking it in water with 4 times the amount of the medicinal material for at least 3 hours; S2, placing the soaked medicinal material into the percolation device, using a preset amount of solvent for percolation, and collecting the percolation liquid; S3, adsorbing the percolation liquid through the macroporous resin, and then sequentially eluting it with 4BV water and 4BV 60% ethanol; S4, combining the obtained column effluent and water eluent, and sequentially separating them through a ceramic membrane and an ultrafiltration membrane to obtain a phyllium small molecule functional sugar part, decolorizing the small molecule functional sugar part with activated carbon, and then concentrating and drying to obtain a decolorized small molecule functional sugar part; S5, eluting the polyphenol substances adsorbed on the macroporous resin with a 60% ethanol solution, and then concentrating and drying to obtain a phyllium polyphenol part; S6, proportioning the decolorized small molecule functional sugar part and the polyphenol part to obtain a target product.

[0065] Among them, the specific operation steps of taking 800g of phyllium medicinal material as an example are as follows: taking 800g of phyllium medicinal material and coarsely crushing it, soaking it in water with 4 times the amount of the medicinal material for 3 hours, loading it into the percolation device, using 6-8 times the amount of water for percolation, collecting the percolation liquid, adsorbing the percolation liquid through 1.5kg of D101 macroporous resin, sequentially eluting it with 4BV of distilled water and 4BV of 60% ethanol after the sample is loaded, combining the column effluent and the water eluent, and sequentially separating them through a ceramic membrane and a 3000D ultrafiltration membrane, concentrating the ultrafiltration permeate to a specific gravity of 1.15±0.02 (55~60℃), a vacuum degree of-0.06~-0.08mpa, and a temperature of 55~60℃, adding 15g of activated carbon for decolorization at 60℃ for 3 hours, filtering to obtain a filtrate, vacuum drying the filtrate at a vacuum degree of-0.07~-0.1MPa and a drying temperature of 55~60℃ for 3~5 hours, and then crushing to obtain a decolorized small molecule functional sugar; concentrating the macroporous resin 60% alcohol elution liquid to a specific gravity of 1.15±0.02 (55~60℃), a vacuum degree of-0.06~-0.08mpa, and a temperature of 55~60℃, and then vacuum drying at a vacuum degree of-0.07~-0.1MPa and a drying temperature of 55~60℃ for 3~5 hours, and then crushing to obtain a phyllium polyphenol part; finally, proportioning the decolorized small molecule functional sugar part and the polyphenol part (6:1-10:1) to obtain a small molecule functional sugar and polyphenol composition.

[0066] The lower column liquid is a part of the composition flowing out from the bottom without being adsorbed by the D101 macroporous resin; The water washing liquid is a part of the impurities adsorbed on the surface of the resin and not firmly adsorbed, which is washed away by distillation water.

[0067] The small-molecule functional sugar and polyphenol composition has light color and is convenient to add to cosmetics. The small-molecule functional sugar and polyphenol composition contains small-molecule sugars, amino acids and polyphenols, has the effect of up-regulating the expression of water channel protein 3 (AQP3) to play a moisturizing role, and has an anti-aging effect.

[0068] The above only describes the embodiments of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation, or direct or indirect application in other related technical fields, which is made by using the content of the specification and drawings of the present application, is also included in the patent protection scope of the present application.

Claims

1. A percolation device, characterized in that: include: percolation tank; A downward pressing device, comprising a lifting cylinder, a connecting member, and a pressing plate structure, wherein the lifting cylinder is mounted on the percolation tank, and the pressing plate structure is mounted on the output end of the lifting cylinder via the connecting member and is located inside the percolation tank; A plurality of partition structures, wherein the plurality of partition structures are stacked and installed on the bottom of the pressure plate structure through a connecting structure, the partition structure comprising a grid plate and a filter layer, and the filter layer is installed on top of the grid plate; During loading, materials are laid out in layers inside the percolation tank, and the pressing device pushes down the partition structure to press down each layer of materials in turn. The connecting structure unlocks the partition structure at the bottom each time, so that the partition structure falls on each layer of materials accordingly.

2. The percolation device according to claim 1, characterized in that The percolation device also includes a scraper, which is rotatably installed in the middle of the bottom of the grid plate, and the scraper can rotate at an angle of no more than ninety degrees. The connecting part includes an assembly cylinder, a connecting disk and a motor. The motor is installed in the assembly cylinder through the connecting disk. The pressure plate structure includes a lower pressure plate and a rotating cylinder. The rotating cylinder is installed at the top of the lower pressure plate, and the rotating cylinder is rotatably connected to the assembly cylinder. The output end of the motor is detachably connected to the rotating cylinder, and the partition structure is installed on the lower pressure plate through the connecting structure.

3. The percolation device according to claim 2, characterized in that A receiving groove is provided at the bottom of the grid plate, and the scraper is rotatably installed inside the receiving groove.

4. The percolation device according to claim 3, characterized in that When the scraper is rotated and moved out of the receiving groove, the scraper is arranged in an inclined manner.

5. The percolation device according to claim 4, characterized in that The partition structure further includes a limiting shaft, which is installed in the receiving groove. When the scraper rotates out of the receiving groove, the scraper abuts against the limiting shaft, so that the scraper is arranged at an angle.

6. The percolation device according to claim 2, characterized in that The connecting structure includes a threaded shaft, a nut and a rotating member. The threaded shaft passes through the lower pressure plate and the multiple partition structures in sequence. The nut is installed on the lower pressure plate and is threadedly connected to the threaded shaft. The grid plate is connected to the threaded shaft through a threaded sleeve. The rotating member is used to drive the threaded shaft to rotate.

7. The percolation device according to claim 6, characterized in that The rotating member is a U-shaped frame, which is installed at the top of the threaded shaft. The connecting member also includes a driving block, which is installed at the output shaft of the motor. The pressure plate structure also includes two U-shaped sleeves, which are respectively installed on both 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 member is located below the driving block. The connecting disk 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 disk.

8. The percolation device according to claim 7, characterized in that The connecting member further comprises a positioning plate, which is mounted on the connecting disk and suspended above the U-shaped sleeve.

9. The percolation device according to claim 6, characterized in that The partition structure also includes multiple elastic sheets. An assembly hole is opened on the grid plate, the threaded sleeve is installed in the assembly hole, and multiple elastic sheets are installed around the assembly hole. The filter layer is divided into multiple sheets corresponding to the position of the assembly hole and is connected to each elastic sheet accordingly.

10. A method for preparing an extract of Phyllanthus emblica, characterized in that: The following steps are involved: S1. Crush the emblica officinalis root into coarse pieces and soak them in water 4 times the amount of the emblica root for at least 3 hours. S2. placing the soaked medicinal material into a percolation device according to any one of claims 1 to 9, performing percolation using a predetermined amount of solvent, and collecting the percolation liquid; S3, the percolate was adsorbed on a macroporous resin and then eluted with 4 BV of water and 4 BV of 60% ethanol in sequence; S4. Combining the obtained lower column liquid and water washing liquid, sequentially separating them through a ceramic membrane and an ultrafiltration membrane to obtain the small molecule functional sugar fraction of the emblica fruit, decolorizing the small molecule functional sugar fraction with activated carbon, and then concentrating and drying to obtain the decolorized small molecule functional sugar fraction; S5, using 60% ethanol solution to elute the polyphenols adsorbed on the macroporous resin, and then concentrating and drying to obtain the polyphenol fraction of the emblica fruit; S6. The decolorized small molecule functional sugar part and the polyphenol part are mixed to obtain the target product.

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