CN115253377B - Continuous separation and extraction process and extraction equipment for tea polyphenol - Google Patents
Continuous separation and extraction process and extraction equipment for tea polyphenol Download PDFInfo
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- CN115253377B CN115253377B CN202210981672.XA CN202210981672A CN115253377B CN 115253377 B CN115253377 B CN 115253377B CN 202210981672 A CN202210981672 A CN 202210981672A CN 115253377 B CN115253377 B CN 115253377B
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- 241001122767 Theaceae Species 0.000 title claims abstract description 58
- 235000013824 polyphenols Nutrition 0.000 title claims abstract description 41
- 150000008442 polyphenolic compounds Chemical class 0.000 title claims abstract description 40
- 238000000926 separation method Methods 0.000 title claims abstract description 29
- 238000000605 extraction Methods 0.000 title claims abstract description 25
- 239000007788 liquid Substances 0.000 claims abstract description 82
- 238000003860 storage Methods 0.000 claims abstract description 23
- 239000012528 membrane Substances 0.000 claims description 27
- 238000007789 sealing Methods 0.000 claims description 26
- 239000002245 particle Substances 0.000 claims description 24
- 238000011010 flushing procedure Methods 0.000 claims description 21
- 239000007787 solid Substances 0.000 claims description 20
- 230000007246 mechanism Effects 0.000 claims description 16
- 239000002893 slag Substances 0.000 claims description 13
- 230000005540 biological transmission Effects 0.000 claims description 12
- 238000001125 extrusion Methods 0.000 claims description 8
- 238000004090 dissolution Methods 0.000 abstract description 21
- 239000002904 solvent Substances 0.000 abstract description 8
- 239000004744 fabric Substances 0.000 abstract description 3
- 238000001914 filtration Methods 0.000 abstract description 3
- 238000007873 sieving Methods 0.000 abstract description 3
- 239000011550 stock solution Substances 0.000 description 6
- 238000001223 reverse osmosis Methods 0.000 description 5
- 238000007599 discharging Methods 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 238000000108 ultra-filtration Methods 0.000 description 4
- 239000012045 crude solution Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- LSHVYAFMTMFKBA-TZIWHRDSSA-N (-)-epicatechin-3-O-gallate Chemical compound O([C@@H]1CC2=C(O)C=C(C=C2O[C@@H]1C=1C=C(O)C(O)=CC=1)O)C(=O)C1=CC(O)=C(O)C(O)=C1 LSHVYAFMTMFKBA-TZIWHRDSSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000002791 soaking Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- GUTLYIVDDKVIGB-OUBTZVSYSA-N Cobalt-60 Chemical compound [60Co] GUTLYIVDDKVIGB-OUBTZVSYSA-N 0.000 description 1
- CITFYDYEWQIEPX-UHFFFAOYSA-N Flavanol Natural products O1C2=CC(OCC=C(C)C)=CC(O)=C2C(=O)C(O)C1C1=CC=C(O)C=C1 CITFYDYEWQIEPX-UHFFFAOYSA-N 0.000 description 1
- 244000082204 Phyllostachys viridis Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- CIOAGBVUUVVLOB-NJFSPNSNSA-N Strontium-90 Chemical compound [90Sr] CIOAGBVUUVVLOB-NJFSPNSNSA-N 0.000 description 1
- 206010044048 Tooth missing Diseases 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 235000010208 anthocyanin Nutrition 0.000 description 1
- 229930002877 anthocyanin Natural products 0.000 description 1
- 239000004410 anthocyanin Substances 0.000 description 1
- 150000004636 anthocyanins Chemical class 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 210000001185 bone marrow Anatomy 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001784 detoxification Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 150000002206 flavan-3-ols Chemical class 0.000 description 1
- 235000011987 flavanols Nutrition 0.000 description 1
- 229930003935 flavonoid Natural products 0.000 description 1
- 235000017173 flavonoids Nutrition 0.000 description 1
- 150000002215 flavonoids Chemical class 0.000 description 1
- HVQAJTFOCKOKIN-UHFFFAOYSA-N flavonol Natural products O1C2=CC=CC=C2C(=O)C(O)=C1C1=CC=CC=C1 HVQAJTFOCKOKIN-UHFFFAOYSA-N 0.000 description 1
- 150000002216 flavonol derivatives Chemical class 0.000 description 1
- 235000011957 flavonols Nutrition 0.000 description 1
- 239000000941 radioactive substance Substances 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D11/00—Solvent extraction
- B01D11/02—Solvent extraction of solids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/31—Self-supporting filtering elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/31—Self-supporting filtering elements
- B01D29/35—Self-supporting filtering elements arranged for outward flow filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
- B01D29/56—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
Abstract
The invention discloses a continuous tea polyphenol separation and extraction process, which comprises the specific steps of crushing sun-dried tea leaves, sieving the crushed tea leaves by using a screen, dissolving the crushed tea leaves by using a solvent, dissolving the crushed tea leaves in the solvent, carrying out secondary filtration by using the screen cloth to prepare coarse dissolution liquid, and sending the coarse dissolution liquid into a liquid storage barrel.
Description
Technical Field
The invention discloses a continuous separation and extraction process and extraction equipment for tea polyphenol, and belongs to the technical field of tea polyphenol processing.
Background
Tea polyphenols are the general term for polyphenols in tea, including flavanols, anthocyanins, flavonoids, flavonols, phenolics, etc. The tea polyphenol is also called tea tannin or tea tannin, which is one of the main components forming tea color, aroma and taste, and is one of the main components with health care function in tea, and researches show that the active substances such as tea polyphenol have the functions of detoxification and radiation resistance, can effectively prevent radioactive substances from invading bone marrow, can make strontium 90 and cobalt 60 rapidly discharged out of the body, is known as 'radiation gram' by the health and medical community, and has wide application in the fields of life and medicine.
The existing tea polyphenol is extracted by crushing tea leaves and then separating by a primary screen, then dissolving tea polyphenol components by a solvent, and separating and extracting tea residue particles and a dissolving liquid containing tea polyphenol by a reverse osmosis membrane or an ultrafiltration membrane, wherein the traditional separating and extracting process is to continuously introduce the tea residue particles and the dissolving liquid into a closed container, apply certain liquid pressure to enable the dissolving liquid to pass through the reverse osmosis membrane or the ultrafiltration membrane, and the tea residue particles are slowly accumulated in the container and are adhered to the reverse osmosis membrane or the ultrafiltration membrane to greatly influence the extraction efficiency of the tea polyphenol, so that the tea residue particles need to be cleaned at intervals, and the requirements of continuous production and processing cannot be met.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a continuous separation and extraction process and extraction equipment for tea polyphenol.
The invention realizes the aim through the following technical scheme, and the continuous separation and extraction process of tea polyphenol comprises the following steps:
s1: crushing the sun-dried tea leaves in a crusher, and sieving the crushed tea leaves by a screen to obtain tea powder;
s2: soaking tea powder in 40-50deg.C solvent for 30-60min to dissolve, and filtering with cloth net to obtain coarse solution;
S3: adding the crude dissolution liquid into a liquid storage barrel from a liquid inlet pipe, then allowing the crude dissolution liquid to enter between a filter element and an outer barrel, enabling tea polyphenol and solvent in the crude dissolution liquid to pass through a membrane component in the process of driving the piston to move up and down by a transmission mechanism, intercepting solid particles in the crude dissolution liquid by the membrane component, simultaneously flushing out the solid particles on the inner wall of the outer barrel and the surface of the membrane component by using the crude dissolution liquid to enter a flushing hole, and then allowing the solid particles to enter a collecting barrel through a liquid outlet pipe to obtain residue liquid;
s4: after the separation and extraction of the crude dissolved liquid in the liquid storage barrel are completed, the residue liquid is pumped into the liquid storage barrel by using a conveying pump and a liquid return pipe for secondary separation until the completion.
Preferably, the solvent is water or ethanol, and the membrane component is a reverse osmosis membrane or an ultrafiltration membrane.
The utility model provides a tea polyphenol continuous separation draws equipment, includes the frame and connects the storage vat, be provided with the stock solution bucket in the frame, the lateral wall of stock solution bucket is provided with the feed liquor pipe, and the bottom is provided with movable extrusion device, movable extrusion device includes filter core, urceolus and piston, filter core fixed mounting is in the center of urceolus, and the filter core is hollow structure, connect the below that the storage vat is located the filter core, be provided with a plurality of through-hole on the lateral wall of filter core to install the membrane module that is used for separating solid particle and dissolving liquid in the periphery that corresponds the through-hole, the piston is located between urceolus and the filter core, and is connected with the actuating lever on the piston, the actuating lever is installed at the top of stock solution bucket, be provided with the drive mechanism that is used for driving lever to go up and down on the stock solution bucket, the bottom of urceolus is provided with slag discharging mechanism, slag discharging mechanism includes sealing ring, elasticity limiting member and gomphosis piece, the both sides at the sealing ring are installed respectively to the elasticity limiting member, the gomphosis piece can with the piston joint, elasticity limiting member keeps applying the effort that is close to the urceolus bottom to the sealing ring to the distance that upwards moves, carry out the clearance and form the clearance between the outer diameter of the stock solution bucket and the corresponding to the outer diameter of stock solution bucket, the outer diameter is provided with the collecting pump.
Preferably, the bottom of urceolus is provided with the first round table surface with sealing ring complex, first round table surface is middle part height, the structure of low all around, be provided with the second round table surface on the sealing ring, the second round table surface is high all around, the structure of low all around, the bottom of sealing ring still is provided with the horizontal plane to be formed with album slag groove between the first round table surface, go out liquid hole and album slag groove and switch on.
Preferably, the inner side of the outer cylinder is provided with a plurality of flushing holes distributed in an array, each flushing hole comprises a vertical hole and a horizontal hole, the horizontal holes are equidistantly arranged along the height direction of the outer cylinder, one end of each horizontal hole is communicated with the vertical hole, the other end of each horizontal hole extends to the side wall of the outer cylinder, which is close to the filter element, of the outer cylinder, the vertical hole extends to the top of the outer cylinder and is located on the outer side of the piston, and a cover plate for covering the flushing holes is slidably arranged on the driving rod.
Preferably, an annular groove for communicating a plurality of flushing holes is formed in the top of the outer cylinder, and a filter screen is arranged in the annular groove.
Preferably, the actuating lever includes transfer line, fixed disk and connecting rod, the connecting rod is provided with four, and its one end is connected with the fixed disk, the other end is connected with the piston, the one end and the fixed disk of transfer line are connected, the outside of connecting rod is provided with the sleeve, the sleeve is fixed on the apron, and telescopic inboard is provided with first spring, be provided with the bulge loop that is used for compressing first spring on the connecting rod.
Preferably, the elastic limiting piece comprises a limiting bolt, a second spring and a limiting sleeve, one end of the limiting bolt is in threaded connection with the embedded piece, the other end of the limiting bolt extends to the lower portion of the outer cylinder, the limiting sleeve is installed between the outer cylinder and the limiting bolt, the second spring is located between the outer cylinder and the limiting bolt, and one end, far away from the limiting bolt, of the embedded piece is of a four-claw hook structure.
Preferably, the transmission mechanism comprises a tooth-shaped block, a first tooth-lacking gear, a second tooth-lacking gear, a motor, a driving gear and a driven gear, wherein the tooth-shaped block is arranged on the transmission rod, tooth-shaped protrusions meshed with the first tooth-lacking gear and the second tooth-lacking gear are arranged on two sides of the tooth-shaped block, the motor, the first tooth-lacking gear and the second tooth-lacking gear are arranged on the liquid storage barrel through fixing seats, the driving gear is arranged on the motor, the driven gear is provided with two driving gears and is connected with the first tooth-lacking gear and the second tooth-lacking gear through rotating shafts, and guide blocks used for limiting the sliding distance of the tooth-shaped block are arranged on the fixing seats.
Compared with the prior art, the invention has the beneficial effects that:
1. Through setting up urceolus, filter core and piston, rely on drive mechanism to drive the piston and reciprocate to apply certain pressure to the thick solution between outer section of thick bamboo and the filter core, make tea polyphenol and solvent pass through the membrane module fast, solid particles are held back, thereby realize the high-efficient separation and extraction of tea polyphenol.
2. The bottom of urceolus sets up slag extractor, after the action of extracting of first tea polyphenol separation is accomplished, rely on the pulling force that gomphosis piece and piston cooperation produced to upwards pulling the sealing ring and forming the sediment passageway in the bottom of urceolus, make solid particle get into the collecting vessel after being erodeed by crude dissolution liquid, so can guarantee that the separation of second tea polyphenol is extracted can not receive the influence, the separation of effectual assurance tea polyphenol draws efficiency, and need not the manual work and dismantle spare part and clear up solid particle, thereby can realize the continuous separation of tea polyphenol and draw.
Drawings
FIG. 1 is a schematic diagram of a continuous tea polyphenol separation and extraction device;
FIG. 2 is a schematic diagram of the internal structure of a continuous tea polyphenol separation and extraction device of the invention;
FIG. 3 is an exploded view illustration of the outer cartridge and cartridge of the present invention;
FIG. 4 is a schematic structural view of the outer cylinder of the present invention;
FIG. 5 is a schematic view of the mounting structure of the drive rod, cover plate and piston of the present invention;
FIG. 6 is a schematic diagram of a transmission mechanism according to the present invention;
FIG. 7 is an enlarged view of a portion of FIG. 2 at A;
Reference numerals: 1. a fixing seat; 2. a liquid storage barrel; 3. a liquid return pipe; 4. a transfer pump; 5. a collecting barrel; 6. receiving a charging basket; 7. an elastic limiting piece; 8. a movable extrusion device; 9. a frame; 10. a liquid inlet pipe; 11. a transmission mechanism; 12. a guide block; 13. a tooth-shaped block; 14. a first tooth-missing gear; 15. a liquid outlet pipe; 16. a driving rod; 17. a piston; 18. an outer cylinder; 19. a slag discharging mechanism; 20. a filter element; 21. a cover plate; 22. a gear II with a missing tooth; 23. a liquid outlet hole; 24. a vertical hole; 25. a filter screen; 26. an annular groove; 27. a horizontal hole; 28. a through hole; 29. a membrane module; 30. a fitting member; 31. a second spring; 32. a limit bolt; 33. a limit sleeve; 34. a seal ring; 35. a first circular mesa; 36. a sleeve; 37. a fixed plate; 38. a transmission rod; 39. tooth-shaped protrusions; 40. a connecting rod; 41. a first spring; 42. a driven gear; 43. a motor; 44. a drive gear; 45. a rotating shaft; 46. a liquid outlet gap; 47. a slag collecting groove; 48. a second circular table surface.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1 to 7, a continuous separation and extraction process of tea polyphenols is characterized by comprising the following steps:
s1: crushing the sun-dried tea leaves in a crusher, and sieving the crushed tea leaves by a screen to obtain tea powder;
S2: soaking tea powder in 40-50deg.C water for 30-60min to dissolve, and filtering with cloth net to obtain coarse solution;
S3: adding crude dissolution liquid into a liquid storage barrel 2 from a liquid inlet pipe 10, then allowing the crude dissolution liquid to enter between a filter element 20 and an outer barrel 18, enabling tea polyphenol and solvent in the crude dissolution liquid to pass through a membrane assembly 29 in the process of driving a piston 17 to move up and down by a transmission mechanism 11, intercepting solid particles in the crude dissolution liquid by the membrane assembly 29 by adopting a reverse osmosis membrane for the membrane assembly 29, flushing solid particles on the inner wall of the outer barrel 18 and the surface of the membrane assembly 29 by using the crude dissolution liquid to enter a flushing hole, and then allowing the solid particles to enter a collecting barrel 5 through a liquid outlet pipe 15 to obtain residue liquid;
S4: after the separation and extraction of the crude dissolved liquid in the liquid storage barrel 2 are completed, the residue liquid is pumped into the liquid storage barrel 2 by using the delivery pump 4 and the liquid return pipe 3 for secondary separation until the completion.
As shown in figures 1-7, the continuous tea polyphenol separation and extraction equipment comprises a frame 9 and a receiving barrel 6, wherein the frame 9 is provided with a liquid storage barrel 2, the liquid storage barrel 2 is connected with a liquid inlet pipe 10, the liquid storage barrel 2 can feed crude dissolution liquid into the liquid storage barrel 2, the bottom of the liquid storage barrel 2 is provided with a movable extrusion device 8, the movable extrusion device 8 can apply certain pressure to the crude dissolution liquid, thereby rapidly separating solid particles in the crude dissolution liquid from tea polyphenol mixed liquid, the specific structure of the movable extrusion device 8 consists of a filter element 20, an outer barrel 18 and a piston 17, wherein the filter element 20 is of a hollow structure and is fixedly arranged at the center of the outer barrel 18, the middle part of the filter element 20 is provided with a plurality of through holes 28 distributed in an array, the outer side of the through holes 28 is provided with a membrane component 29, the membrane component 29 is wound and fixed on the surface of the filter element 20, the surface of the upper end and the lower end of the filter element 20 is kept flat after winding, the lower end of the filter element 20 passes through the outer barrel 18 and is positioned above the receiving barrel 6, the piston 17 is positioned between the outer barrel 18 and the filter element 20, and the piston 17 is connected with the piston 17, and the piston 17 is connected with a driving rod 16, and the piston 17 is driven by the piston 17 to drive the piston 17 to move the filter element 11 and the tea polyphenol can be driven to enter the tea polyphenol separation mechanism to be driven to be separated by the tea polyphenol extraction mechanism 11, and the tea polyphenol separation and the membrane 11 is driven by the piston 17.
The transmission mechanism 11 mainly comprises a tooth-shaped block 13, a first tooth-lacking gear 14, a second tooth-lacking gear 22, a motor 43, a driving gear 44 and a driven gear 42, wherein the tooth-shaped block 13 is arranged on the driving rod 16, tooth-shaped protrusions 39 meshed with the first tooth-lacking gear 14 and the second tooth-lacking gear 22 are arranged on two sides of the tooth-shaped block, the motor 43, the first tooth-lacking gear 14 and the second tooth-lacking gear 22 are arranged on the liquid storage barrel 2 through the fixing base 1, the driving gear 44 is arranged on the motor 43, the driven gear 42 is provided with two driving gears 42 and is connected with the first tooth-lacking gear 14 and the second tooth-lacking gear 22 through rotating shafts 45, the fixing base 1 is provided with a guide block 12 for limiting the sliding distance of the tooth-shaped block 13, when the motor 43 drives the driving gear 44 to rotate synchronously, the first tooth-lacking gear 14 and the second tooth-lacking gear 22 rotate along with the driving gear 13, and the two driving gears are sequentially meshed with the tooth-shaped block 13, so that the driving rod 16 can be driven to move downwards repeatedly, and power can be provided for the piston 17.
In order to overcome the problem, the bottom of the outer cylinder 18 is provided with a slag discharging mechanism 19 which consists of a sealing ring 34, an elastic limiting piece 7 and an embedding piece 30, wherein the elastic limiting piece 7 and the embedding piece 30 are respectively arranged on two sides of the sealing ring 34, one end of the embedding piece 30 is of a four-claw hook structure, a mounting hole is arranged on a piston 17, the embedding piece 30 is inserted into the mounting hole and deforms when the piston 17 is pushed to be close to the bottom of the outer cylinder 18, the mounting hole is of a ladder structure, after the piston 17 slides in place, the jogged piece 30 is also fully inserted into the mounting hole and restored to the original state to hook the piston 17, when the piston 17 is restored, the jogged piece 30 can generate pulling force to pull the sealing ring 34 upwards, the elastic limiting piece 7 keeps acting force to the sealing ring 34 close to the bottom of the outer cylinder 18 and can limit the upward moving distance of the sealing ring 34, the elastic limiting piece 7 consists of a limiting bolt 32, a second spring 31 and a limiting sleeve 33, one end of the limiting bolt 32 is in threaded connection with the jogged piece 30, the other end extends to the lower part of the outer cylinder 18, the limiting sleeve 33 is arranged between the outer cylinder 18 and the limiting bolt 32, the second spring 31 is positioned between the outer cylinder 18 and the limiting bolt 32, namely when the sealing ring 34 moves upwards for a certain distance along with the piston 17, the limiting bolt 32 is pulled to compress the second spring 31, when the limit sleeve 33 prevents the limit bolt 32 from moving continuously, the limit bolt 32 generates a pulling force on the embedded piece 30, so that the embedded piece 30 deforms again and is separated from the mounting hole, as the liquid outlet hole 23 is formed in the side wall of the outer barrel 18 corresponding to the seal ring 34, the collecting barrel 5 is arranged on the side surface of the receiving barrel 6, the collecting barrel 5 is connected with the liquid outlet hole 23 through the liquid outlet pipe 15, when the seal ring 34 moves upwards, a gap is formed between the seal ring 34 and the bottom of the outer barrel 18, the inner diameter of the seal ring 34 is larger than the outer diameter of the filter element 20, and a liquid outlet gap 46 is formed between the seal ring 34 and the seal ring 34, so that residual crude solution can smoothly flow into the collecting barrel 5 from the liquid outlet pipe 15, and a large amount of solid particles remained in the outer barrel 18 cannot be accumulated.
Meanwhile, in order to ensure that the residual solid particles in the outer barrel 18 are basically cleaned, a distance is reserved from the through hole 28 on the filter element 20 to the bottom of the outer barrel 18, so that a certain margin is reserved for the coarse dissolution liquid in the outer barrel 18 to bring away the solid particles completely, the structures of the outer barrel 18 and the sealing ring 34 are improved, the bottom of the outer barrel 18 is provided with a first circular table surface 35 matched with the sealing ring 34, the first circular table surface 35 is in a structure with a high middle part and a low periphery, the sealing ring 34 is provided with a second circular table surface 48, the second circular table surface 48 is in a structure with a high periphery and a low middle part, the bottom of the sealing ring 34 is also provided with a horizontal plane, a slag collecting groove 47 is formed between the liquid outlet 23 and the first circular table surface 35, and the slag collecting groove 47 is communicated, after gaps are generated between the sealing ring 34 and the outer barrel 18 by utilizing the first circular table surface 35 and the second circular table surface 48, the residual coarse dissolution liquid can smoothly enter the slag collecting groove 47 along the first circular table surface 35 and the second circular table surface 48, and the solid particles enter the slag collecting groove 47, and then the liquid enters the collecting barrel 5 through the liquid outlet pipe 15, so that automatic cleaning of the solid particles is realized.
Secondly, in order to clean the surface of the membrane component 29 and attach solid particles to reduce the influence of the next separation and extraction of tea polyphenol, a plurality of flushing holes distributed in arrays are arranged on the inner side of the outer barrel 18, the flushing holes comprise vertical holes 24 and horizontal holes 27, the horizontal holes 27 are equidistantly arranged along the height direction of the outer barrel 18, one end of each flushing hole is communicated with the vertical holes 24, the other end of each flushing hole extends to the side wall of the outer barrel 18, which is close to the filter element 20, the vertical holes 24 extend to the top of the outer barrel 18 and are positioned on the outer side of the piston 17, a cover plate 21 for covering the flushing holes is slidably arranged on the driving rod 16, meanwhile, an annular groove 26 for communicating the flushing holes is arranged on the top of the outer barrel 18, a filter screen 25 is arranged in the annular groove 26, because the cover plate 21 and the piston 17 are in incomplete synchronous motion, namely, when the piston 17 moves in the outer barrel 18, the cover plate 21 is kept still, and when the outer barrel 18 in the piston 17 is separated, the cover plate 21 is driven to synchronously move upwards, but the piston 17 has a certain thickness, so that a gap is formed between the cover plate 21 and the liquid storage barrel 2, at the moment, coarse dissolution liquid can enter the outer barrel 18 from the annular groove 26 and the flushing hole, the filter screen 25 prevents large particle solids from blocking the flushing hole, the coarse dissolution liquid has a certain kinetic energy after flowing through the vertical hole 24 and flows out from the horizontal hole 27 to form a parabolic liquid flow column, and a certain horizontal impact force is generated on the membrane assembly 29, so that solid particles attached to the surface of the membrane assembly and the inner wall of the bottom of the outer barrel 18 are flushed out and accumulated at the bottom of the outer barrel 18, so that a powerful condition is provided for continuous separation and extraction of tea polyphenol, manual cleaning is not needed, the structural design is reasonable and ingenious, and the piston 17 continues to move upwards afterwards, so that the crude dissolution liquid can be rapidly filled between the outer tub 18 and the cartridge 20.
In addition, the driving rod 16 includes four driving rods 38, a fixed disc 37 and a connecting rod 40, wherein one end of the connecting rod 40 is connected with the fixed disc 37, the other end is connected with the piston 17, one end of the driving rod 38 is connected with the fixed disc 37, the other end passes through the liquid storage barrel 2 and is connected with the tooth-shaped block 13, the outer side of the connecting rod 40 is provided with a sleeve 36, the sleeve 36 is fixed on the cover plate 21, the inner side of the sleeve 36 is provided with a first spring 41, the connecting rod 40 is provided with a convex ring for compressing the first spring 41, the driving force of the driving mechanism 11 can be smoothly transferred to the piston 17 by the driving rod 38, the fixed disc 37 and the connecting rod 40, the first spring 41 can keep the reset of the cover plate 21 and the tightness between the cover plate and the liquid storage barrel 2, so that the surface of the film assembly 29 is ready for flushing the crude solution, and the convex ring is matched with the sleeve 36 can guarantee the tightness, and the crude solution is prevented from entering the sleeve 36 to influence the action of the piston 17.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (5)
1. The utility model provides a tea polyphenol continuous separation draws equipment, includes frame (9) and connects storage vat (6), its characterized in that, be provided with stock vat (2) on frame (9), the lateral wall of stock vat (2) is provided with feed liquor pipe (10), and the bottom is provided with movable extrusion device (8), movable extrusion device (8) include filter core (20), urceolus (18) and piston (17), filter core (20) fixed mounting is in the center of urceolus (18), and filter core (20) are hollow structure, connect storage vat (6) to be located the below of filter core (20), be provided with a plurality of through-hole (28) on the lateral wall of filter core (20) to install membrane module (29) that are used for separating solid particle and dissolving liquid in the periphery of corresponding through-hole (28), piston (17) are located between urceolus (18) and filter core (20), and be connected with actuating lever (16) on piston (17), actuating lever (16) are installed at the top of stock vat (2), be provided with on stock vat (2) and be used for driving lever (16), actuating lever (19) and sealing ring (19) are located in the periphery (19) of setting up sealing ring (19), the elastic limiting piece (7) and the embedded piece (30) are respectively arranged at two sides of the sealing ring (34), the embedded piece (30) can be clamped with the piston (17), the elastic limiting piece (7) keeps acting force close to the bottom of the outer cylinder (18) on the sealing ring (34) and limits the upward moving distance of the sealing ring (34), the inner diameter of the sealing ring (34) is larger than the outer diameter of the filter core (20) and forms a liquid outlet gap (46) between the two, the side wall of the outer cylinder (18) corresponding to the sealing ring (34) is provided with a liquid outlet hole (23), the liquid outlet hole (23) is connected with a liquid outlet pipe (15), the side surface of the receiving cylinder (6) is provided with a collecting barrel (5), a liquid return pipe (3) and a conveying pump (4) are arranged between the collecting barrel (5) and the barrel (2), the bottom of the outer cylinder (18) is provided with a first round table top (35) matched with the sealing ring (34), the first round table top (35) is in a middle part high and four sides low structure, the second round table top (34) is provided with a liquid collecting table top (48), the second round table top (48) is also in a middle part (48) is formed between the second round table top (48) and the second round table top (48), the liquid outlet hole (23) is communicated with the slag collecting groove (47), a plurality of flushing holes distributed in an array are formed in the inner side of the outer barrel (18), each flushing hole comprises a vertical hole (24) and a horizontal hole (27), the horizontal holes (27) are formed in the outer barrel (18) at equal intervals in the height direction, one ends of the horizontal holes are communicated with the vertical holes (24), the other ends of the horizontal holes extend to the side wall, close to the filter element (20), of the outer barrel (18), the vertical holes (24) extend to the top of the outer barrel (18) and are located on the outer side of the piston (17), and a cover plate (21) used for covering the flushing holes is slidably mounted on the driving rod (16).
2. Continuous tea polyphenol separation and extraction device according to claim 1, characterized in that the top of the outer barrel (18) is provided with an annular groove (26) for communicating a plurality of flushing holes, and a filter screen (25) is arranged in the annular groove (26).
3. Continuous tea polyphenol separation and extraction equipment according to claim 1, characterized in that the driving rod (16) comprises a transmission rod (38), a fixed disc (37) and connecting rods (40), the connecting rods (40) are provided with four connecting rods, one ends of the four connecting rods are connected with the fixed disc (37) and the other ends of the four connecting rods are connected with the piston (17), one ends of the transmission rod (38) are connected with the fixed disc (37), a sleeve (36) is arranged on the outer side of the connecting rods (40), the sleeve (36) is fixed on the cover plate (21), a first spring (41) is arranged on the inner side of the sleeve (36), and a convex ring for compressing the first spring (41) is arranged on the connecting rods (40).
4. A continuous tea polyphenol separation and extraction device according to claim 3, wherein the elastic limiting piece (7) comprises a limiting bolt (32), a second spring (31) and a limiting sleeve (33), one end of the limiting bolt (32) is in threaded connection with the embedded piece (30), the other end of the limiting bolt extends to the lower side of the outer barrel (18), the limiting sleeve (33) is arranged between the outer barrel (18) and the limiting bolt (32), the second spring (31) is arranged between the outer barrel (18) and the limiting bolt (32), and one end, far away from the limiting bolt (32), of the embedded piece (30) is in a four-claw hook structure.
5. A continuous tea polyphenol separation and extraction device according to claim 3, wherein the transmission mechanism (11) comprises a tooth-shaped block (13), a first tooth-lacking gear (14), a second tooth-lacking gear (22), a motor (43), a driving gear (44) and a driven gear (42), the tooth-shaped block (13) is mounted on a transmission rod (38), tooth-shaped bulges (39) meshed with the first tooth-lacking gear (14) and the second tooth-lacking gear (22) are arranged on two sides of the tooth-shaped block, the motor (43), the first tooth-lacking gear (14) and the second tooth-lacking gear (22) are mounted on a liquid storage barrel (2) through a fixing seat (1), the driving gear (44) is mounted on the motor (43), the driven gear (42) is provided with two tooth-lacking gears (14) and the second tooth-lacking gear (22) through rotating shafts (45), and a guide block (12) used for limiting the sliding distance of the tooth-shaped block (13) is arranged on the fixing seat (1).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210981672.XA CN115253377B (en) | 2022-08-15 | 2022-08-15 | Continuous separation and extraction process and extraction equipment for tea polyphenol |
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| CN202210981672.XA CN115253377B (en) | 2022-08-15 | 2022-08-15 | Continuous separation and extraction process and extraction equipment for tea polyphenol |
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| CN115253377A CN115253377A (en) | 2022-11-01 |
| CN115253377B true CN115253377B (en) | 2024-04-30 |
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| CN115253377A (en) | 2022-11-01 |
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