CN113144907A - Electrodialysis purification method for biological pharmacy - Google Patents
Electrodialysis purification method for biological pharmacy Download PDFInfo
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- CN113144907A CN113144907A CN202110091256.8A CN202110091256A CN113144907A CN 113144907 A CN113144907 A CN 113144907A CN 202110091256 A CN202110091256 A CN 202110091256A CN 113144907 A CN113144907 A CN 113144907A
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- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000000909 electrodialysis Methods 0.000 title claims abstract description 24
- 238000000746 purification Methods 0.000 title claims abstract description 20
- 239000003011 anion exchange membrane Substances 0.000 claims abstract description 59
- 229960000074 biopharmaceutical Drugs 0.000 claims abstract description 14
- 230000008569 process Effects 0.000 claims abstract description 10
- 230000005484 gravity Effects 0.000 claims abstract description 7
- 239000012528 membrane Substances 0.000 claims description 36
- 238000007667 floating Methods 0.000 claims description 33
- 238000003756 stirring Methods 0.000 claims description 25
- 238000007790 scraping Methods 0.000 claims description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- 239000013049 sediment Substances 0.000 claims description 12
- 238000001556 precipitation Methods 0.000 abstract description 8
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 15
- 230000009471 action Effects 0.000 description 5
- 150000002500 ions Chemical class 0.000 description 5
- 210000003437 trachea Anatomy 0.000 description 4
- 238000005341 cation exchange Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 238000010612 desalination reaction Methods 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- -1 hydrogen ions Chemical class 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 239000008213 purified water Substances 0.000 description 2
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000003014 ion exchange membrane Substances 0.000 description 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
- B01D65/02—Membrane cleaning or sterilisation ; Membrane regeneration
-
- 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
- B01D61/42—Electrodialysis; Electro-osmosis ; Electro-ultrafiltration; Membrane capacitive deionization
- B01D61/44—Ion-selective electrodialysis
- B01D61/52—Accessories; Auxiliary operation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/469—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
- C02F1/4693—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis electrodialysis
- C02F1/4695—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis electrodialysis electrodeionisation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2321/00—Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
- B01D2321/30—Mechanical cleaning, e.g. with brushes or scrapers
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/02—Non-contaminated water, e.g. for industrial water supply
- C02F2103/026—Treating water for medical or cosmetic purposes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Water Supply & Treatment (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Urology & Nephrology (AREA)
- Analytical Chemistry (AREA)
- Molecular Biology (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention relates to the technical field of electrodialysis purification, and discloses an electrodialysis purification method for biopharmaceuticals. Through anion exchange membrane's surface precipitation, increase anion exchange membrane's gravity, thereby make fixed gasbag compression release gaseous bottom and the gathering to the power kickboard, make the power kickboard upwards remove because of gaseous buoyancy in the inside of sliding chamber, the inside top through reacing the sliding chamber carries out gaseous release and fall back, and upwards strike off with two decurrent parallel scraper blades carry out anion exchange membrane surface precipitation in two motion processes, make the precipitation can break away from anion exchange membrane's surface fast, thereby improve the work efficiency of electrodialysis, reduce the electric energy that consumes when switching electrode back anion exchange membrane surface precipitation dissolves simultaneously.
Description
Technical Field
The invention relates to the technical field of electrodialysis purification, in particular to an electrodialysis purification method for biopharmaceuticals.
Background
The water for biological pharmacy is purified water which is obtained by processing raw water through processes of filtration and electrodialysis, and then is stored and used, wherein the electrodialysis is realized by utilizing the selective permeability of an anion-cation exchange membrane, namely anions on the surface of the anion-exchange membrane can permeate through, cations on the surface of the cation-exchange membrane can pass through, and a concentration chamber and a desalination chamber are formed on two sides of the ion-exchange membrane due to the transfer of ions, so that the purified water is dialyzed from the desalination chamber.
The method is characterized in that the polarization phenomenon is easy to occur in the electrodialyzer and mainly occurs on the dilute chamber side of a cation exchange membrane and the concentrated chamber side of an anion exchange membrane, so that a large amount of water molecules are dissociated, hydrogen ions and hydroxyl ions dissociated under the action of an electric field migrate to consume electric energy, calcium carbonate and magnesium hydroxide precipitates are generated on the surface of the anion exchange membrane of a concentrated water chamber, water scales are formed for a long time, the resistance of the membrane is increased, the energy consumption is increased, the effective area of the membrane is reduced, and the water quality of effluent is reduced. The energy consumption of dissolution is increased; although the ion concentration of the water in the concentrated water chamber close to the surface of the exchange membrane is high, which can reduce the resistance, it cannot offset the resistance increased by the too low ion concentration of the water in the fresh water chamber close to the surface of the exchange membrane, so the total resistance is still increased, which increases the consumption of electric energy, and this phenomenon is more prominent and has higher resistance when the current density is higher and the water flow speed is lower.
Disclosure of Invention
Aiming at the defects of the prior electrodialysis purification equipment in the background technology in the using process, the invention provides the electrodialysis purification equipment for the biopharmaceutical and the purification method thereof, which have the advantages of self-cleaning dirt and stirring and solve the technical problems in the background technology.
The invention provides the following technical scheme: an electrodialysis purification device for bio-pharmaceuticals comprises a shell, wherein a clamping groove is formed in the shell, an anion exchange membrane is connected to the membrane support in a sliding mode through the clamping groove, the membrane support is hollow on three sides and divided into three regions through the difference of the edge positions, sliding chambers are respectively arranged on the front side and the back side of the membrane support, an air bag chamber is arranged at the bottom end of the membrane support, vent holes are formed in the top end of the sliding chambers, a fixed air bag is fixedly connected to the inside of the air bag chamber, a one-way air valve is fixedly connected to the back side of the fixed air bag, a one-way air pipe is fixedly connected to one side of the fixed air bag, the bottom end of the anion exchange membrane is movably connected with the fixed air bag through the clamping groove, and parallel scraping plates are movably connected to two sides of the anion exchange membrane respectively, stirring plates are axially and uniformly distributed on the outer side of the parallel scraper, clamping plates are fixedly connected to two sides of the inner portion of the sliding chamber respectively, power floating plates are fixedly connected to the front and back faces of the parallel scraper respectively, sliding grooves are formed in two sides of each power floating plate respectively, and two sides of each power floating plate are connected with the inner portion of the sliding chamber in a sliding mode through the sliding grooves respectively.
Preferably, the fixed air bag is a flexible air bag, and the shape of the fixed air bag is matched with that of the air bag chamber.
Preferably, the height of the one-way trachea is the same as that of the membrane bracket, and the top end of the one-way trachea is higher than one tenth of the membrane bracket.
Preferably, the height of the parallel scraper is one tenth of the height of the anion exchange membrane, and the internal shape of the parallel scraper is the same as the cross-sectional shape of the anion exchange membrane.
Preferably, the stirring plate is rectangular and has a length which is one twentieth of that of the parallel scraper.
Preferably, two of the clamping plates are in the same sliding chamber, the height of one clamping plate is the same as that of the membrane support, and the height of the other clamping plate is one tenth of that of the membrane support.
Preferably, the shape of the power floating plate is L-shaped, the bottom end of the power floating plate is fixedly connected with the front surface and the back surface of the parallel scraping plate, and the shapes of the sliding grooves on the two sides of the power floating plate are the same as the shape of the section of the inside formed by the clamping plate and the sliding chamber.
An electrodialysis purification method for biopharmaceuticals, comprising the following operating steps:
s1, depositing the anion exchange membrane on two sides of the anion exchange membrane in the using process, increasing the gravity of the anion exchange membrane, and fixing the air bag to contract;
s2, releasing the air in the fixed air bag to the bottom end of the power floating plate through the one-way air valve and collecting the air;
s3, the buoyancy of the gas enables the power floating plate to drive the parallel scraping plate and the stirring plate to move upwards on the surface of the anion exchange membrane, and the surface attached deposits on the two sides of the anion exchange membrane are scraped;
s4, moving the power floating plate to the top end of the sliding chamber to release gas gathered at the bottom end, falling back, and simultaneously driving the parallel scraping plates and the stirring plate to stir water in the chambers at two sides while scraping sediments on the surfaces at two sides of the anion exchange membrane, thereby increasing the flow speed;
s5, removing the sediment on the surface of the anion exchange membrane.
The invention has the following beneficial effects:
1. according to the invention, through the surface precipitation of the anion exchange membrane, the gravity of the anion exchange membrane is increased, so that the fixed air bag compresses and releases gas to the bottom end of the power floating plate and gathers the gas, the power floating plate moves upwards in the sliding chamber due to gas buoyancy, the gas is released and falls back by reaching the top end of the sliding chamber, and the parallel scrapers scrape the surface precipitation of the anion exchange membrane in the two upward and downward movement processes, so that the precipitation can be rapidly separated from the surface of the anion exchange membrane, the working efficiency of electrodialysis is improved, meanwhile, the electric energy consumed when the surface precipitation of the anion exchange membrane is dissolved after the electrodes are switched is reduced, and the cost of pharmaceutical feed water of electrodialysis is reduced.
2. According to the invention, the stirring plate reciprocates up and down along with the parallel scrapers to stir the internal water flow, so that the average ion concentration is promoted, the water flow speed is increased, the resistance is reduced, the stirring mode avoids the consumption of redundant electric energy, the energy consumption is reduced, and the dissolution of precipitates in liquid can be accelerated.
Drawings
FIG. 1 is a front view, cut away, schematic view of the structure of the present invention;
FIG. 2 is an enlarged view of the structure at A in FIG. 1 according to the present invention;
FIG. 3 is a schematic sectional top view of the structure of the present invention;
FIG. 4 is an enlarged view of the structure at B in FIG. 3 according to the present invention;
FIG. 5 is a side view of the parallel screed configuration of the present invention.
In the figure: 1. a housing; 2. a membrane scaffold; 3. an anion exchange membrane; 4. a sliding chamber; 5. a balloon chamber; 6. Fixing the air bag; 7. a one-way air valve; 8. a one-way trachea; 9. parallel scrapers; 10. stirring the plate; 11. a clamping plate; 12. and a dynamic floating plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, an electrodialysis purification apparatus for bio-pharmaceuticals comprises a housing 1, a membrane holder 2 fixedly connected to the interior of the housing 1, a clamping groove formed in the interior of the membrane holder 2, an anion exchange membrane 3 slidably connected to the membrane holder 2 through the clamping groove, the membrane holder 2 being hollow on three sides and divided into three regions by the edge positions, sliding chambers 4 formed on the front and back sides of the membrane holder 2, an air chamber 5 formed at the bottom end of the membrane holder 2, vent holes formed at the top end of the sliding chamber 4, a fixed air chamber 6 fixedly connected to the interior of the air chamber 5, a one-way air valve 7 fixedly connected to the back side of the fixed air chamber 6, a one-way air pipe 8 fixedly connected to one side of the fixed air chamber 6, a bottom end of the anion exchange membrane 3 movably connected to the fixed air chamber 6 through the clamping groove, parallel scrapers 9 movably connected to two sides of the anion exchange membrane 3, stirring plates 10 are axially and uniformly distributed on the outer side of the parallel scraper 9, clamping plates 11 are fixedly connected to two sides of the inner part of the sliding chamber 4 respectively, power floating plates 12 are fixedly connected to the front and back surfaces of the parallel scraper 9 respectively, sliding grooves are formed in two sides of each power floating plate 12 respectively, and two sides of each power floating plate 12 are connected with the inner part of the sliding chamber 4 in a sliding mode through the sliding grooves respectively.
Wherein, fixed gasbag 6 is flexible gasbag, and the shape looks adaptation of fixed gasbag 6 shape and y gasbag room 5 makes fixed gasbag 6 can only contract according to the extrusion of anion exchange membrane 3, improves the sensitivity of device.
Wherein, the height of the one-way air pipe 8 is the same as that of the membrane bracket 2, and the top end of the one-way air pipe 8 is higher than the one tenth position of the membrane bracket 2, so that the top end of the one-way air pipe 8 is higher than the liquid level in the shell 1, and the liquid suction is avoided.
Wherein, the height of parallel scraper 9 is one tenth of the anion exchange membrane 3 height, and the inside shape of parallel scraper 9 is the same with anion exchange membrane 3's cross sectional shape, makes the outside of anion exchange membrane 3 is hugged closely to the inside of parallel scraper 9, improves the effect of scraping sediment.
Wherein, stirring plate 10 is the shape of rectangle, and length is parallel scraper blade 9 one twentieth, improves the stirring effect when falling back fast, increases the inside velocity of flow, and the concentration of average ion is inside.
Wherein, two screens boards 11 are in same sliding chamber 4, and the height of one of them screens board 11 is the same with the height of membrane holder 2, and the height of another screens board 11 is one tenth of membrane holder 2, because a screens board 11 is less than the height of sliding chamber 4 because of the height, when power kickboard 12 moved the inside top of sliding chamber 4, a screens board 11 can not block in power kickboard 12 one side to the gas of power kickboard 12 bottom gathering passes through the sliding tray of screens board 11 top power kickboard 12 one side and releases the inside of sliding chamber 4.
The shape of the power floating plate 12 is L-shaped, the bottom end of the power floating plate 12 is fixedly connected with the front and the back of the parallel scraping plate 9, the shapes of the sliding grooves on the two sides of the power floating plate 12 are the same as the shape of the cross section of the inside formed by the clamping plate 11 and the sliding chamber 4, and gas is prevented from being released from the position where the parallel scraping plate 9 is connected with the power floating plate 12.
An electrodialysis purification method for biopharmaceuticals, comprising the following operating steps:
s1, the anion exchange membrane 3 is deposited and attached to two sides of the anion exchange membrane 3 in the using process, the gravity of the anion exchange membrane 3 is increased, and the fixed air bag 6 is contracted;
s2, releasing the gas in the fixed air bag 6 to the bottom end of the power floating plate 12 through the one-way air valve 7 and collecting the gas;
s3, enabling the power floating plate 12 to drive the parallel scraping plate 9 and the stirring plate 10 to move upwards on the surface of the anion exchange membrane 3 by gas buoyancy, and scraping the attached sediment on the two side surfaces of the anion exchange membrane 3;
s4, moving the power floating plate 12 to the top end of the sliding chamber 4 to release gas gathered at the bottom end and fall back, and simultaneously driving the parallel scraping plates 9 and the stirring plates 10 to stir the indoor water at the two sides while scraping the sediment on the surfaces at the two sides of the anion exchange membrane 3, thereby increasing the flow speed;
s5, removing the sediment on the surface of the anion exchange membrane 3.
The use method (working principle) of the invention is as follows:
when the sediment is gathered at one side of the anion exchange membrane 3, the sediment increases the weight of the anion exchange membrane 3, the anion exchange membrane 3 compresses the top end of the fixed air bag 6 downwards, the air in the fixed air bag 6 is released to the front and the back in the sliding chamber 4 through the one-way air valve 7 under pressure, the air floats upwards and is gathered at the bottom end of the power floating plate 12, when the buoyancy of the air is larger than the gravity of the parallel scraping plate 9, the stirring plate 10 and the power floating plate 12, the parallel scraping plate 9 and the stirring plate 10 move upwards together with the power floating plate 12, the parallel scraping plate 9 can scrape the sediment at two sides of the anion exchange membrane 3, meanwhile, the power floating plate 12 continues to move upwards under the action of the buoyancy of the air, when the power floating plate 12 moves to the top end of the sliding chamber 4, one of the clamping plates 11 in the sliding chamber 4 is smaller than the sliding chamber 4 in height, power kickboard 12 one side is not gone into to screens board 11, thereby the inside of sliding chamber 4 is released to the sliding tray of the gaseous sliding tray that passes through screens board 11 top power kickboard 12 one side of 12 bottom gathers of power kickboard, and release the outside through 4 top air vents of sliding chamber, lose behind the gas buoyancy promptly, power kickboard 12 can fall back the inside of sliding chamber 4, because the effect of gas buoyancy does not have among the fall back process, the speed of fall back is very fast, the deposit of anion exchange membrane 3 both sides can be got rid of fast to the inside both sides of parallel scraper blade 9, stir the indoor rivers of both sides simultaneously that board 10 can mix, make the velocity of flow increase, because the deposit on anion exchange membrane 3 surface reduces, make anion exchange membrane 3's gravity reduce, fixed gasbag 6 inflation, inhale the inside that outside gas got into fixed gasbag 6 through one-way trachea 8.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. An electrodialysis purification method for biopharmaceuticals, comprising a housing (1), a membrane holder (2) being fixedly connected to the interior of the housing (1), characterized in that: the membrane support is characterized in that a clamping groove is formed in the membrane support (2), the membrane support (2) is connected with an anion exchange membrane (3) through the clamping groove in a sliding manner, three edges of the membrane support (2) are all hollow, the membrane support (2) is divided into three areas through the difference of edge positions, the front surface and the back surface of the membrane support (2) are respectively provided with a sliding chamber (4), the bottom end of the membrane support (2) is provided with an air bag chamber (5), the top end of the sliding chamber (4) is provided with air holes, the inside of the air bag chamber (5) is fixedly connected with a fixed air bag (6), the back surface of the fixed air bag (6) is fixedly connected with a one-way air valve (7), one side of the fixed air bag (6) is fixedly connected with a one-way air pipe (8), the bottom end of the anion exchange membrane (3) is movably connected with the fixed air bag (6) through the clamping groove, two sides of the anion exchange membrane (3) are respectively and movably connected with parallel scraping plates (9), stirring plates (10) are axially and uniformly distributed on the outer side of the parallel scraper (9), clamping plates (11) are fixedly connected to two sides of the inner part of the sliding chamber (4) respectively, power floating plates (12) are fixedly connected to the front and back surfaces of the parallel scraper (9) respectively, sliding grooves are formed in two sides of each power floating plate (12) respectively, and two sides of each power floating plate (12) are connected with the inner part of the sliding chamber (4) in a sliding mode through the sliding grooves respectively;
the method comprises the following operation steps:
s1, the anion exchange membrane (3) is deposited and attached to two sides of the anion exchange membrane (3) in the using process, the gravity of the anion exchange membrane (3) is increased, and the fixed air bag (6) is contracted;
s2, releasing the gas in the fixed air bag (6) to the bottom end of the power floating plate (12) through the one-way air valve (7) and collecting the gas;
s3, enabling the power floating plate (12) to drive the parallel scraping plate (9) and the stirring plate (10) to move upwards on the surface of the anion exchange membrane (3) by gas buoyancy, and scraping the attached sediment on the two side surfaces of the anion exchange membrane (3);
s4, moving the power floating plate (12) to the top end of the sliding chamber (4) to release gas gathered at the bottom end, falling back, and simultaneously driving the parallel scraping plate (9) and the stirring plate (10) to stir water in the chambers at two sides while scraping sediments on the surfaces at two sides of the anion exchange membrane (3), thereby increasing the flow speed;
s5, removing the sediment on the surface of the anion exchange membrane (3).
2. The electrodialysis purification method for biopharmaceuticals according to claim 1, wherein: the fixed air bag (6) is a flexible air bag, and the shape of the fixed air bag (6) is matched with that of the air bag chamber (5).
3. The electrodialysis purification method for biopharmaceuticals according to claim 1, wherein: the height of the one-way air pipe (8) is the same as that of the membrane bracket (2), and the top end position of the one-way air pipe (8) is higher than the position of one tenth of the membrane bracket (2).
4. The electrodialysis purification method for biopharmaceuticals according to claim 1, wherein: the height of the parallel scraper (9) is one tenth of that of the anion exchange membrane (3), and the internal shape of the parallel scraper (9) is the same as the cross-sectional shape of the anion exchange membrane (3).
5. The electrodialysis purification method for biopharmaceuticals according to claim 1, wherein: the stirring plate (10) is rectangular and the length of the stirring plate is one twentieth of that of the parallel scraper (9).
6. The electrodialysis purification method for biopharmaceuticals according to claim 1, wherein: the two clamping plates (11) are arranged in the same sliding chamber (4), the height of one clamping plate (11) is the same as that of the film support (2), and the height of the other clamping plate (11) is one tenth of that of the film support (2).
7. The electrodialysis purification method for biopharmaceuticals according to claim 1, wherein: the shape of power kickboard (12) is "L" type, and the front and the back fixed connection of the bottom of power kickboard (12) and parallel scraper blade (9), the sliding tray shape of power kickboard (12) both sides is the same with screens board (11) and sliding chamber (4) constitution inside cross sectional shape.
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| CN202110091256.8A CN113144907A (en) | 2021-01-22 | 2021-01-22 | Electrodialysis purification method for biological pharmacy |
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| CN202110091256.8A CN113144907A (en) | 2021-01-22 | 2021-01-22 | Electrodialysis purification method for biological pharmacy |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113856226A (en) * | 2021-10-27 | 2021-12-31 | 山东省绿士农药有限公司 | Dry suspending agent type pesticide production line |
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Application publication date: 20210723 |