CN114534495A - Filter membrane for medicine separation and filter device thereof - Google Patents
Filter membrane for medicine separation and filter device thereof Download PDFInfo
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- CN114534495A CN114534495A CN202210252211.9A CN202210252211A CN114534495A CN 114534495 A CN114534495 A CN 114534495A CN 202210252211 A CN202210252211 A CN 202210252211A CN 114534495 A CN114534495 A CN 114534495A
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- 239000012528 membrane Substances 0.000 title claims abstract description 125
- 238000000926 separation method Methods 0.000 title claims abstract description 22
- 239000003814 drug Substances 0.000 title abstract description 14
- 238000001914 filtration Methods 0.000 claims abstract description 74
- -1 polytetrafluoroethylene Polymers 0.000 claims abstract description 39
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 38
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 38
- 238000001471 micro-filtration Methods 0.000 claims abstract description 35
- 239000003365 glass fiber Substances 0.000 claims abstract description 34
- 238000000108 ultra-filtration Methods 0.000 claims abstract description 27
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 26
- 239000004917 carbon fiber Substances 0.000 claims abstract description 26
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 23
- 238000007789 sealing Methods 0.000 claims abstract description 20
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 10
- 230000005540 biological transmission Effects 0.000 claims description 18
- 238000005406 washing Methods 0.000 claims description 16
- 239000004005 microsphere Substances 0.000 claims description 7
- 210000004177 elastic tissue Anatomy 0.000 claims description 5
- 239000000835 fiber Substances 0.000 claims description 5
- 238000005253 cladding Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 3
- 241000220317 Rosa Species 0.000 claims description 2
- 230000006978 adaptation Effects 0.000 claims description 2
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- 238000001179 sorption measurement Methods 0.000 description 14
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- 239000011368 organic material Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
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- 241000894006 Bacteria Species 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
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- 238000010030 laminating Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
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- 229910052751 metal Inorganic materials 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/14—Ultrafiltration; Microfiltration
- B01D61/145—Ultrafiltration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/14—Ultrafiltration; Microfiltration
- B01D61/147—Microfiltration
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- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a filter membrane for medicine separation and a filter device thereof, wherein the filter membrane comprises a microfiltration membrane and an ultrafiltration membrane, wherein the microfiltration membrane comprises carbon fiber layers and carbon fiber layers which are respectively and reversely and spirally wrapped on the surfaces of the carbon fiber layers; the ultrafiltration membrane comprises a glass fiber layer and a second polytetrafluoroethylene layer, a hollow cavity with activated carbon is arranged in the glass fiber, and a groove and a channel are arranged on the surface of the glass fiber; the filtering device comprises a filtering box body, an inner box body filled into the material inlet is arranged in the filtering box body, an adjusting box and an annular sealing barrel which are mutually connected and can move up and down are arranged in the inner box body, adjusting racks are arranged on two inner sides of the adjusting box, an adjusting gear is arranged between the two adjusting racks, and a plurality of circulation holes which are matched and sealed with the annular sealing barrel are formed in the wall surface of the inner box body; the outside of interior box is equipped with the interior barrel of taking the micro-filtration membrane, and the outside of interior barrel is equipped with the outer barrel of taking the milipore filter. The invention has the characteristics of good stability and filtering effect, difficult membrane pore blockage and concentration polarization reduction.
Description
Technical Field
The invention relates to a filter membrane, in particular to a filter membrane for medicine separation and a filter device thereof.
Background
The membrane separation technology has the advantages of normal-temperature continuous operation, no chemical change, no phase change, high selectivity, strong adaptability, high efficiency, energy conservation, no secondary pollution, direct amplification, simple process and the like, can replace the traditional alcohol precipitation, concentration, extraction, adsorption and other process procedures in some modern pharmaceutical industries, particularly traditional Chinese medicine production, has incomparable advantages compared with the traditional separation, purification and concentration technology, shows great potential in the traditional Chinese medicine production and the processing of Chinese patent medicines, and plays a positive role in improving the content of effective components in medicinal preparations, improving the clarity of medicines, prolonging the storage time, ensuring high absolute removal efficiency of impurities, bacteria and heat sources, being beneficial to improving the production efficiency, reducing the dosage, reducing environmental pollution and the like.
At present, the membrane separation technologies commonly used in pharmacy and medical treatment in China mainly include microfiltration, ultrafiltration, nanofiltration, reverse osmosis, gas separation and the like. Various membrane filters have different separation mechanisms and can be adapted to different objects and requirements. Microfiltration and ultrafiltration membrane materials used in the pharmaceutical industry are classified into two categories, organic materials and inorganic materials. Examples of the organic material include cellulose esters, polysulfone, and polypropylene, and examples of the inorganic material include metals, ceramics, metal oxides, glasses, and zeolites.
However, although membrane separation technology has many unique advantages, there are several major problems in the application of the membrane separation technology in the pharmaceutical industry:
1) the existing microfiltration and ultrafiltration membrane products have poor uniformity of pore size, wide pore size distribution, easy deformation under the action of large impact force, and further improved stability and filtration effect;
2) in the aspect of separation and purification of medicines, especially in the preparation process of traditional Chinese medicines, the extract has high viscosity and high content of macromolecular impurities, and a large filter layer is easily formed on the surface of a membrane product to block membrane pores and form membrane pollution, so that the filtration flux of the membrane is reduced sharply, and the service cycle and the service life of the membrane are greatly influenced.
3) In the membrane separation process, when the concentration on the interface of the solution and the membrane exceeds the solubility of the main solution, the concentration gradient between the generated interface and the main solution causes the diffusion of solute from the interface to the main solution, thereby reducing the permeation quantity, causing concentration polarization, greatly influencing the interception performance and filtration flux of the membrane, and greatly influencing the service cycle and service life of the membrane.
Therefore, the existing filtration membranes for separation and purification of medicines have the problems that the stability and filtration effect are to be improved, membrane pores are easy to block, and concentration polarization phenomenon is easy to cause.
Disclosure of Invention
The purpose of the present invention is to provide a filtration membrane for separating a drug and a filtration device therefor. The invention has the characteristics of good stability and filtering effect, difficult membrane pore blockage and concentration polarization reduction.
The technical scheme of the invention is as follows: a filtering membrane for medicine separation comprises a microfiltration membrane and an ultrafiltration membrane, wherein the microfiltration membrane comprises a carbon fiber layer and first polytetrafluoroethylene layers hot-pressed on two side faces of the carbon fiber layer, and the two first polytetrafluoroethylene layers are respectively reversely and spirally wrapped on the surface of the carbon fiber layer; the ultrafiltration membrane comprises a glass fiber layer and a second polytetrafluoroethylene layer which are compounded with each other, the glass fiber layer is formed by a plurality of glass fibers in a staggered mode, a hollow cavity is formed in the glass fiber, activated carbon is arranged in the hollow cavity, and a groove and a channel communicated with the hollow cavity are formed in the surface of the glass fiber.
In the above-described medical separation filter membrane, the glass fiber layer has an upper insection on a surface thereof to which the second polytetrafluoroethylene layer is bonded, and the second polytetrafluoroethylene layer has a lower insection on a surface thereof to which the glass fiber layer is bonded, the lower insection engaging with the upper insection.
In the above-mentioned medical separation filter membrane, the polytetrafluoroethylene fibers of the first polytetrafluoroethylene layer and the second polytetrafluoroethylene layer are uniformly distributed with a plurality of protruding microspheres, and the surfaces of the microspheres are provided with micropores.
In the above-mentioned medical separation filter membrane, the carbon fiber has a hollow structure, and an elastic fiber is disposed in a cavity of the carbon fiber.
The filtering device adopting the filtering membrane for medicine separation comprises a filtering box body, wherein an inner box body is arranged in the filtering box body, a feeding hole is formed in the inner box body, an adjusting box and an annular sealing barrel which are connected with the inner box body in a vertical sliding mode are arranged in the inner box body, the adjusting box and the annular sealing barrel are connected through an adjusting rod, adjusting racks are arranged on two inner sides of the adjusting box, an adjusting gear is arranged between the two adjusting racks, meshing teeth meshed with the adjusting rack on one side are arranged on the adjusting gear, the adjusting gear is driven by a driving motor, and a plurality of circulation holes which are sealed in a matched mode with the annular sealing barrel are formed in the wall surface of the inner box body; the outside of interior box is equipped with interior barrel, and the outside of interior barrel is equipped with outer barrel, is equipped with the micro-filtration membrane on the interior barrel, is equipped with the milipore filter on the outer barrel.
Among the aforementioned filter equipment, interior barrel all includes the main part with outer barrel, all is equipped with a plurality of filter tanks on the periphery of main part, and demountable installation has filtering component on the filter tank, is equipped with the mounting groove on the inside wall of filter tank, and mounting groove department is equipped with a pair ofly and main part sliding connection's splint from top to bottom, and filtering component includes filtration membrane, and filtration membrane adopts micro filtration membrane or milipore filter, and filtration membrane's border cladding has sealed limit, and filtration membrane's sealed limit stretches into in the mounting groove through the splint centre gripping fixed.
Among the aforementioned filter equipment, splint include that the part stretches into the fixed plate in the mounting groove, the inboard of fixed plate is equipped with the protection pad of centre gripping filtration membrane, through connecting rod swing joint between two fixed plates, the outside cover of connecting rod is equipped with extension spring, extension spring's both ends are connected with the fixed plate respectively, the outside that mounting groove department lies in the fixed plate is equipped with the stopper, be equipped with first inclined plane on the stopper, be equipped with the second inclined plane with first inclined plane looks adaptation on the fixed plate, when splint outwards removed along the stopper, distance grow between two splint.
In the filtering device, the driving motor is connected with the adjusting gear through the transmission shaft, the bottom of the inner cylinder is provided with the rotating shaft for driving the inner cylinder to rotate, and the transmission shaft is in matched linkage with the rotating shaft through the gear set.
In the filtering device, the gear set comprises a driving bevel gear installed on the transmission shaft, a driven bevel gear is meshed with the driving bevel gear, the driven bevel gear is connected with a connecting shaft, a transmission gear is arranged on the connecting shaft, a driven gear is arranged on the rotating shaft, and the driven gear is in linkage connection with the transmission gear.
Among the aforementioned filter equipment, the top of filtering box is equipped with the lift cylinder, is equipped with the crane of being connected with the lift cylinder on the outer barrel, forms sealed washing cavity between interior box and the rose box, and the lift cylinder is used for promoting outer barrel to wash in the cavity, washes the intracavity and is equipped with the washing terminals who is used for washing the outer barrel that promotes in washing the cavity.
Compared with the prior art, the invention has the beneficial effects that:
according to the microfiltration membrane provided by the invention, the carbon fibers are arranged between the two first polytetrafluoroethylene layers and used as a framework of the microfiltration membrane, so that the microfiltration membrane has high overall structural strength, is not easy to deform and can bear larger impact force; the two first polytetrafluoroethylene layers are spirally coated on the surface of the carbon fiber layer, can bear larger centrifugal force, are more suitable for being arranged on a centrifugally rotating filter device, and have good stability;
the glass fiber adopted in the ultrafiltration membrane has certain blocking and adsorption effects due to the design of the hollow cavity, the groove and the channel; the glass fiber layer is used for surface adsorption, and the second polytetrafluoroethylene layer is used for surface adsorption, so that the adsorption capacity, adsorption capacity and adsorption effect of the ultrafiltration membrane are greatly improved, and the service life is prolonged;
when the filter device adopting the microfiltration membrane and the ultrafiltration membrane is used, filtrate to be filtered enters the inner box body from the feed inlet, enters the inner box body through the flow through hole and is filtered by the microfiltration membrane; then the mixture enters the outer cylinder body and is filtered by an ultrafiltration membrane; the driving motor drives the adjusting gear to rotate through the transmission shaft, the adjusting gear drives the adjusting rack in the adjusting box to move back and forth in the rotating process of the adjusting gear so as to drive the adjusting box and the annular sealing cylinder to move up and down, and in the process of moving the annular sealing cylinder up and down, through holes in the inner box body are partially covered, completely covered and completely uncovered to change constantly, so that the flow rate of filtrate entering the inner cylinder body through the through holes is adjusted, the liquid outlet condition of variable speed variables is realized, the speed distribution near the filtering membrane is adjusted, the concentration polarization phenomenon is reduced, and the thickness of a concentration critical layer is removed;
meanwhile, the driving motor drives the rotating shaft to rotate through the gear set, so that the inner cylinder is driven to rotate, the inner cylinder is enabled to realize rotary type filtration, a vortex is generated by utilizing a rotary centrifugal force, the diffusion distribution degree of solutes in filtrate is improved, the solutes in the filtrate can be fully mixed and filtered, the filtration effect is improved, the shearing speed of a filtration surface is generated, and the permeability of membrane filtration is ensured;
the position of the outer cylinder body can be adjusted according to the filtering requirements, so that two filtering modes of single microfiltration membrane filtration and microfiltration membrane and ultrafiltration membrane composite filtration are realized, and different requirements are met.
Drawings
FIG. 1 is a schematic view of the structure of a microfiltration membrane according to the invention;
FIG. 2 is a schematic diagram of the structure of an ultrafiltration membrane of the present invention;
FIG. 3 is a schematic structural view of a carbon fiber;
FIG. 4 is a schematic structural view of a glass fiber;
FIG. 5 is a schematic structural view of a polytetrafluoroethylene fiber;
FIG. 6 is a schematic view of the structure of the filter device;
FIG. 7 is a schematic structural view of a filter assembly;
FIG. 8 is a schematic view of the construction of the splint;
fig. 9 is a schematic structural view of the gear set.
The labels in the figures are: 1. a microfiltration membrane; 11. a carbon fiber layer; 12. a first polytetrafluoroethylene layer; 13. carbon fibers; 14. an elastic fiber; 2. ultrafiltration membranes; 21. a glass fiber layer; 211. forming insections; 22. a second polytetrafluoroethylene layer; 23. glass fibers; 24. a hollow cavity; 25. activated carbon; 26. a groove; 27. a channel; 28. polytetrafluoroethylene fibers; 281. microspheres; 282. micropores; 3. a filter box body; 31. an inner box body; 311. a feed inlet; 32. an adjusting box; 33. an annular sealing cylinder; 34. adjusting a rod; 35. adjusting the rack; 36. an adjusting gear; 37. a flow-through hole; 4. an inner cylinder; 5. an outer cylinder; 52. a main body portion; 53. a filter tank; 54. mounting grooves; 55. a splint; 551. a fixing plate; 552. a protection pad; 553. a connecting rod; 554. an extension spring; 555. a limiting block; 556. a first inclined surface; 557. a second inclined surface; 56. a filtration membrane; 57. sealing the edges; 61. a drive motor; 62. a drive shaft; 63. a rotating shaft; 64. a drive bevel gear; 65. a driven bevel gear; 66. a connecting shaft; 67. a transmission gear; 68. a driven gear; 71. a lifting cylinder; 72. a lifting frame; 73. flushing the cavity; 74. and (5) washing the spray head.
Detailed Description
The present invention is further illustrated by the following examples, which are not to be construed as limiting the invention.
Example (b):
as shown in fig. 1-5, a medical separation filter membrane comprises a microfiltration membrane 1 and an ultrafiltration membrane 2, wherein the microfiltration membrane 1 comprises a carbon fiber layer 11 and first polytetrafluoroethylene layers 12 hot-pressed on two side surfaces of the carbon fiber layer 11, and the two first polytetrafluoroethylene layers 12 are respectively reversely and spirally wrapped on the surface of the carbon fiber layer 11; the carbon fiber 13 is a hollow structure, and an elastic fiber 14 is arranged in a cavity of the carbon fiber 13. The range of the membrane aperture of the micro-filtration membrane 1 is 0.1-5 μm;
the carbon fibers 13 are arranged between the two first polytetrafluoroethylene layers 12 of the micro-filtration membrane 1 and serve as a framework of the micro-filtration membrane 1, so that the whole structure of the micro-filtration membrane 1 is high in strength, the carbon fibers 13 are of a hollow structure, the elastic fibers 14 are arranged in the hollow cavity, the long-term form retention performance of the micro-filtration membrane 1 is improved, large impact force can be borne, the stability is good, and the filtering effect is prevented from being influenced by deformation caused by long-term use; and two first polytetrafluoroethylene layers 12 are the heliciform cladding on the surface of carbon fiber layer 11, can bear great centrifugal force, more are fit for installing on the rotatory filter equipment of centrifugation.
The ultrafiltration membrane 2 comprises a glass fiber layer 21 and a second polytetrafluoroethylene layer 22 which are compounded with each other, the glass fiber layer 21 is formed by a plurality of glass fibers 23 in a staggered mode, a hollow cavity 24 is formed in the glass fibers 23, activated carbon 25 is arranged in the hollow cavity 24, and a groove 26 and a channel 27 communicated with the hollow cavity 24 are formed in the surface of the glass fibers 23. The ultrafiltration membrane 2 is an asymmetric porous membrane with the pore diameter of 2-50 nm.
The glass fiber 23 adopted in the ultrafiltration membrane 2 has certain blocking and adsorption effects and high strength due to the design of the hollow cavity 24, the groove 26 and the channel 27; after the surface adsorption of the glass fibers 23 is finished, the glass fiber layers 21 formed by the glass fibers 23 are further subjected to surface adsorption, and then the surface adsorption is further performed through the second polytetrafluoroethylene layer 22, so that the adsorption capacity, the adsorption capacity and the adsorption effect of the ultrafiltration membrane 2 are greatly improved, and the service life is prolonged.
The glass fiber layer 21 is provided with an upper insection 211 on the surface attached to the second polytetrafluoroethylene layer 22, and the second polytetrafluoroethylene layer 22 is provided with a lower insection engaged with the upper insection 211 on the surface attached to the glass fiber layer 21. Through the structural design of last insection 211 and insection down for the laminating of glass fiber layer 21 and second polytetrafluoroethylene layer 22 is inseparabler, firm, and long-term stability in use is good.
The polytetrafluoroethylene fibers 28 of the first polytetrafluoroethylene layer 12 and the second polytetrafluoroethylene layer 22 are respectively distributed with a plurality of raised microspheres 281, and the surfaces of the microspheres 281 are provided with micropores 282. The design increases the micropore structures of the first polytetrafluoroethylene layer 12 and the second polytetrafluoroethylene layer 22, improves the filtering effect and enables the pore diameter of micropores to be uniform.
As shown in fig. 6-9, the filtration device using the above-mentioned membrane for separating medicine comprises a filtration box 3, an inner box 31 is provided in the filtration box 3, a feed inlet 311 is provided on the inner box 31, an adjusting box 32 and an annular sealing cylinder 33 which are connected with the inner box 31 in a vertical sliding manner are provided in the inner box 31, the adjusting box 32 and the annular sealing cylinder 33 are connected through an adjusting rod 34, adjusting racks 35 are provided on both inner sides of the adjusting box 32, an adjusting gear 36 is provided between the two adjusting racks 35, the adjusting gear 36 is provided with engaging teeth which are engaged with the adjusting rack 35 on one side, the adjusting gear 36 is driven by a driving motor 61, and a plurality of circulation holes 37 which are sealed with the annular sealing cylinder 33 in a matching manner are provided on the wall surface of the inner box 31; the outer part of the inner box body 31 is provided with an inner cylinder body 4 which is concentrically distributed, the outer part of the inner cylinder body 4 is provided with an outer cylinder body 5 which is concentrically distributed, the inner cylinder body 4 is provided with a micro-filtration membrane 1, and the outer cylinder body 5 is provided with an ultrafiltration membrane 2.
The splint 55 comprises a fixing plate 551, the part of which extends into the mounting groove 54, a protective pad 552 for clamping the filter membrane 56 is arranged on the inner side of the fixing plate 551, the two fixing plates 551 are movably connected through a connecting rod 553, a tension spring 554 is sleeved outside the connecting rod 553, two ends of the tension spring 554 are respectively connected with the fixing plates 551 on two sides, a limiting block 555 is arranged on the outer side of the fixing plate 551 at the mounting groove 54, a first inclined surface 556 is arranged on the limiting block 555, a second inclined surface 557 matched with the first inclined surface 556 is arranged on the fixing plate 551, and when the splint 55 moves outwards along the limiting block 555, the distance between the two splints 55 is increased. Through outside promotion splint 55 for splint 55 moves along the route of first inclined plane 556 and second inclined plane 557, thereby makes the distance between two splint 55 automatic elongate, thereby weakens the clamping action to filtering component, makes filtering component can easily take off easy operation convenience.
The driving motor 61 is connected with the adjusting gear 36 through a transmission shaft 62, the bottom of the inner cylinder 4 is provided with a rotating shaft 63 for driving the inner cylinder 4 to rotate, and the transmission shaft 62 is in linkage with the rotating shaft 63 through a gear set.
The gear set comprises a driving bevel gear 64 arranged on a transmission shaft 62, a driven bevel gear 65 is meshed on the driving bevel gear 64, a connecting shaft 66 is connected to the driven bevel gear 65, a transmission gear 67 is arranged on the connecting shaft 66, a driven gear 68 is arranged on a rotating shaft 63, and the driven gear 68 is in linkage connection with the transmission gear 67.
The top of the filter box body 3 is provided with a lifting cylinder 71, the outer cylinder body 5 is provided with a lifting frame 72 connected with the lifting cylinder 71, a sealed washing cavity 73 is formed between the inner box body 31 and the filter box, the lifting cylinder 71 is used for lifting the outer cylinder body 5 into the washing cavity 73, and a washing nozzle 74 for washing the ultrafiltration membrane 2 on the outer cylinder body 5 lifted into the washing cavity 73 is arranged in the washing cavity 73.
The working principle is as follows:
when in use, the filtrate to be filtered enters the inner box body 31 from the feed inlet 311, enters the inner cylinder body 4 through the flow through hole 37 and is filtered by the microfiltration membrane 1; then the wastewater enters the outer cylinder body 5 and is filtered by the ultrafiltration membrane 2; during the period, the driving motor 61 drives the adjusting gear 36 to rotate through the transmission shaft 62, the adjusting rack 35 in the adjusting box 32 is shifted back and forth in the rotating process of the adjusting gear 36, so that the adjusting box 32 and the annular sealing cylinder 33 are driven to move up and down, and the through holes in the inner box body 31 are continuously changed in such a way that the through holes are partially covered, completely covered and completely uncovered in the up and down moving process of the annular sealing cylinder 33, so that the flow rate of the filtrate entering the inner cylinder body 4 through the through holes is adjusted, the liquid outlet condition of variable speed is realized, the speed distribution near the filtering membrane 56 is adjusted, the concentration polarization phenomenon is reduced, the thickness of a concentration critical layer is removed, the membrane hole blockage condition is reduced, and the service life of the filtering membrane 56 is prolonged;
simultaneously driving motor 61 still drives axis of rotation 63 through the gear train and rotates, thereby barrel 4 rotates in the drive, make interior barrel 4 realize the filtration of rotation type, utilize rotatory centrifugal force to produce the vortex, improve the diffusion distribution degree of the solute in the filtrate, and produce the shear rate of filtering surface, make the filtrate be difficult for forming great filter layer at filtration membrane surface, be difficult for blockking up the membrane hole, reduce concentration polarization, guarantee filtration membrane's filtration flux, prolong filtration membrane 56's life cycle and life-span
The filtration membranes with different apertures and types can be selected for operation according to actual filtration requirements and the size of molecules to be filtered, and the outer cylinder body 5 is lifted, so that two filtration modes of single filtration by the microfiltration membrane 1 and composite filtration by the microfiltration membrane 1 and the ultrafiltration membrane 2 are realized, and different requirements are met; when the outer cylinder 5 is lifted into the washing cavity 73 by the lifting cylinder 71, the washing spray head 74 can be used for back washing, and washed impurities are discharged through the water outlet pipe, so that the outer cylinder 5 is cleaned, the membrane flux is ensured, and uninterrupted large-scale application is realized.
Claims (10)
1. A filtration membrane for medical separation, characterized in that: the ultrafiltration membrane comprises a microfiltration membrane (1) and an ultrafiltration membrane (2), wherein the microfiltration membrane (1) comprises a carbon fiber layer (11) and first polytetrafluoroethylene layers (12) which are hot-pressed on two side faces of the carbon fiber layer (11), and the two first polytetrafluoroethylene layers (12) are respectively reversely and spirally wrapped on the surface of the carbon fiber layer (11); the ultrafiltration membrane (2) comprises a glass fiber layer (21) and a second polytetrafluoroethylene layer (22) which are compounded with each other, the glass fiber layer (21) is formed by a plurality of glass fibers (23) in a staggered mode, a hollow cavity (24) is formed in the glass fibers (23), activated carbon (25) is arranged in the hollow cavity (24), and a groove (26) and a channel (27) communicated with the hollow cavity (24) are formed in the surface of each glass fiber (23).
2. The filtration membrane for pharmaceutical isolation according to claim 1, wherein: one side of the glass fiber layer (21) which is attached to the second polytetrafluoroethylene layer (22) is provided with upper insections (211), and one side of the second polytetrafluoroethylene layer (22) which is attached to the glass fiber layer (21) is provided with lower insections which are engaged with the upper insections (211).
3. The filtration membrane for pharmaceutical isolation according to claim 1, wherein: a plurality of raised microspheres (281) are uniformly distributed on the polytetrafluoroethylene fibers (28) of the first polytetrafluoroethylene layer (12) and the second polytetrafluoroethylene layer (22), and micropores (282) are arranged on the surfaces of the microspheres (281).
4. The filtration membrane for pharmaceutical isolation according to claim 1, wherein: the carbon fiber (13) is of a hollow structure, and elastic fibers (14) are arranged in a cavity of the carbon fiber (13).
5. A filtration apparatus using the filtration membrane for medical separation according to any one of claims 1 to 4, wherein: the filter box comprises a filter box body (3), an inner box body (31) is arranged in the filter box body (3), a feed inlet (311) is formed in the inner box body (31), an adjusting box (32) and an annular sealing barrel (33) which are connected with the inner box body (31) in a vertical sliding mode are arranged in the inner box body (31), the adjusting box (32) and the annular sealing barrel (33) are connected through an adjusting rod (34), adjusting racks (35) are arranged on two inner sides of the adjusting box (32), an adjusting gear (36) is arranged between the two adjusting racks (35), meshing teeth meshed with the adjusting rack (35) on one side are arranged on the adjusting gear (36), the adjusting gear (36) is driven by a driving motor (61), and a plurality of circulation holes (37) which are matched and sealed with the annular sealing barrel (33) are formed in the wall surface of the inner box body (31); an inner cylinder (4) is arranged outside the inner box body (31), an outer cylinder (5) is arranged outside the inner cylinder (4), a microfiltration membrane (1) is arranged on the inner cylinder (4), and an ultrafiltration membrane (2) is arranged on the outer cylinder (5).
6. A filter arrangement according to claim 1 wherein: interior barrel (4) and outer barrel (5) all include main part (52), all be equipped with a plurality of filter tanks (53) on the periphery of main part (52), demountable installation has filtering component on filter tank (53), be equipped with mounting groove (54) on the inside wall of filter tank (53), mounting groove (54) department is equipped with a pair of splint (55) with main part (52) sliding connection from top to bottom, filtering component includes filtration membrane (56), filtration membrane (56) adopt micro filtration membrane (1) or milipore filter (2), the border cladding of filtration membrane (56) has sealing edge (57), sealing edge (57) of filtration membrane (56) stretch into in mounting groove (54) through splint (55) centre gripping fixed.
7. A filter arrangement according to claim 6 wherein: splint (55) are including partial fixed plate (551) that stretch into in mounting groove (54), the inboard of fixed plate (551) is equipped with protection pad (552) of centre gripping filtration membrane (56), through connecting rod (553) swing joint between two fixed plates (551), the outside cover of connecting rod (553) is equipped with extension spring (554), the both ends of extension spring (554) are connected with fixed plate (551) respectively, mounting groove (54) locate to be located the outside of fixed plate (551) and are equipped with stopper (555), be equipped with first inclined plane (556) on stopper (555), be equipped with second inclined plane (557) with first inclined plane (556) looks adaptation on fixed plate (551), when splint (55) outwards removed along stopper (555), the distance grow between two splint (55).
8. A filter arrangement according to claim 1 wherein: the driving motor (61) is connected with the adjusting gear (36) through a transmission shaft (62), the bottom of the inner cylinder body (4) is provided with a rotating shaft (63) for driving the inner cylinder body (4) to rotate, and the transmission shaft (62) is in matched linkage with the rotating shaft (63) through a gear set.
9. A filter arrangement according to claim 8 wherein: the gear set comprises a driving bevel gear (64) arranged on a transmission shaft (62), a driven bevel gear (65) is meshed on the driving bevel gear (64), a connecting shaft (66) is connected on the driven bevel gear (65), a transmission gear (67) is arranged on the connecting shaft (66), a driven gear (68) is arranged on a rotating shaft (63), and the driven gear (68) is in linkage connection with the transmission gear (67).
10. A filter arrangement according to claim 1 wherein: the top of filter box (3) is equipped with lift cylinder (71), is equipped with crane (72) of being connected with lift cylinder (71) on outer barrel (5), forms sealed washing cavity (73) between interior box (31) and the rose box, and lift cylinder (71) are used for promoting outer barrel (5) to wash in cavity (73), wash and are equipped with in cavity (73) to be used for washing to promote to wash washing shower nozzle (74) of outer barrel (5) in cavity (73).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202210252211.9A CN114534495A (en) | 2022-03-15 | 2022-03-15 | Filter membrane for medicine separation and filter device thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210252211.9A CN114534495A (en) | 2022-03-15 | 2022-03-15 | Filter membrane for medicine separation and filter device thereof |
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| CN114534495A true CN114534495A (en) | 2022-05-27 |
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| CN202210252211.9A Pending CN114534495A (en) | 2022-03-15 | 2022-03-15 | Filter membrane for medicine separation and filter device thereof |
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Cited By (1)
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