CN106215712B - The shaped device of hollow fiber composite membrane - Google Patents
The shaped device of hollow fiber composite membrane Download PDFInfo
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- CN106215712B CN106215712B CN201610603320.5A CN201610603320A CN106215712B CN 106215712 B CN106215712 B CN 106215712B CN 201610603320 A CN201610603320 A CN 201610603320A CN 106215712 B CN106215712 B CN 106215712B
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- hollow
- fiber composite
- composite membrane
- film
- hollow fiber
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
- B01D69/08—Hollow fibre membranes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
- B01D69/12—Composite membranes; Ultra-thin membranes
Abstract
The invention discloses a kind of shaped device of hollow fiber composite membrane, including：Liquid device is film-made, it accommodates preparation liquid；Measuring pump, its one end are connected by pipeline with film liquid device；Spray equipment, it is connected by the other end of pipeline and measuring pump；Draw-gear；And hollow rope；Wherein, the spray equipment is annular sleeve, and the sleeve interior surface has micropore, and hollow rope one end is connected through annular sleeve with draw-gear.By improving coating processes simultaneously so that there is product good attachment and pliability, film stretching intensity to be up to 300N, and hymeniderm layer peel strength is completely absent fracture of wire problem up to more than 10 kilograms.And good tack makes film epidermis not peeled off in aeration process, effectively suppress surface and damaged development occur, avoid film wire rupture, improve the safety in utilization of film wire, can be widely applied to Treated sewage reusing field.
Description
Technical field
The present invention relates to a kind of shaped device of hollow fiber composite membrane.
Background technology
In the prior art, deepened continuously with the process of China industrialization and urbanization, substantial amounts of industry and life are dirty
Dye thing is discharged into environment, and increasingly severe pollution is brought to water body.The water quality of deterioration jeopardizes the strong of industrial production and people
Health, add the cost that entire society obtains water resource.Shortage of water resources turns at present restricts China's economy and social development
An important factor for.Such as the freshwater resources of China are only per capita 1/4, the 1/5 of the U.S. of world average level, have been put into full generation
One of 13 poor-water countries of water resource per capita of boundary, it is the whole world one of poorest country of water resource per capita.And skewness, greatly
Amount freshwater resources concentrate on south, and northern freshwater resources only have the 1/4 of southern water resource.Excessively opened because of underground water in some cities
Adopt, form in hundreds of square kilometres of big funnel.Again due to the discharge of industrial wastewater, cause more than 80% surface water,
Lower water is contaminated.More than Chinese The Great Lakes pool and seven big water system whole moderates pollute, more than 21% monitoring section is bad V classes water
Body；The 40% city suburbs underground water in the whole nation is contaminated, and more than 90% urban waters are seriously polluted.Brainstrust alerts：“20
China will can not find drinkable water resource after year ".Looked forward to for this in every field, whether municipal public use water or industry
Industry, reusing sewage have become very urgent and real work.Into the new century, country puts sewage disposal strategic
The position of height, the prediction of environmental planning institute of State Environmental Protection Administration, China " 12 " and " 13 " period waste water treatment input
1.05 trillion yuans and 1.39 trillion yuans will be respectively reached, reusing sewage recycling market is very huge.
In recent years, membrane bioreactor (MBR) is widely used in Treated sewage reusing field due to having the characteristics that：
1. efficiently carrying out separation of solid and liquid, its separating effect is much better than traditional sedimentation basin, and effluent quality is good, and water outlet is hanged
Float and turbidity close to zero, can direct reuse, realize sewage recycling；2. the efficient crown_interception of film, makes microorganism complete
It is trapped in entirely in bioreactor, realizes being kept completely separate for reactor hydraulic detention time (HRT) and sludge age (SRT), runs
Control is flexibly stable；3. because the aeration tank that traditional wastewater is handled and second pond are combined into one by MBR, and it instead of tertiary treatment
Whole process facilities, therefore floor space can be greatly decreased, save construction investment；4. beneficial to the retention of nitrobacteria and numerous
Grow, system nitrification efficiency is high.Can also there are deamination and phosphorus removal functional by the change of the method for operation；5. because sludge age can be very
It is long, so as to greatly improve the degradation efficiency of hardly degraded organic substance；6. reactor is in high volumetric loading, low sludge loading, long sludge age
Lower operation, excess sludge production is extremely low, due to sludge age can endless, zero sludge discharge can be realized in theory；7. system realizes PLC
Control, convenient operation and management.
However, frequent due to being aerated in MBR techniques, there is insufficient strength, the more phenomenon of fracture of wire in usual film wire.In addition,
Film wire is used in sewage disposal process, sometimes because the scraping to film wire such as silt, impurity forms small scratch, crackle or film
Top layer local shedding from hollow rope, so as to form stress concentration point, when continuing aeration shake, damaged or slight crack can be along this stress
Centrostigma continuous enlargement, rupture or fracture of wire are ultimately formed, causes serious safety problem.
In view of as above reason, it is necessary to a kind of shaped device of hollow fiber composite membrane is studied, to solve in the prior art
The problem of existing.
The content of the invention
The present invention is completed in view of at least one above mentioned problem, and it is an object of the present invention to provide one kind
The shaped device of hollow fiber composite membrane, it is characterised in that including：
Liquid device is film-made, it accommodates preparation liquid；
Measuring pump, its one end are connected by pipeline with film liquid device；
Spray equipment, it is connected by the other end of pipeline and measuring pump；
Draw-gear；And
Hollow rope；
Wherein, the spray equipment is annular sleeve, and the sleeve interior surface has micropore, and hollow rope one end passes through annular
Sleeve is connected with draw-gear.
According to a further aspect of the invention, the micropore is inner surfaces that are multiple and being evenly distributed on the sleeve.
According to a further aspect of the invention, in addition to measuring pump and draw-gear the speed control unit being connected.
According to a further aspect of the invention, in addition to coagulation bath solidification equipment.
According to a further aspect of the invention, annular length sleeve is 5-20cm, thickness 0.5-2cm, internal diameter 1-3mm.
According to a further aspect of the invention, micropore is shaped as bar shaped or hole shape.
According to a further aspect of the invention, the material of the hollow rope is nylon, polyethylene terephthalate or cotton.
According to a further aspect of the invention, the material of the preparation liquid includes polyvinylidene fluoride, polysulfones, polyether sulfone and poly- third
Alkene nitrile.
Compared with prior art, the beneficial effects of the present invention are：Apparatus of the present invention are increased by improving coating processes
Metering pump speeds can strengthen immersion of the preparation liquid to surface of restricting, and greatly improve absorption affinity of the film top layer to supporting rope layer, so that
Coat is unlikely to be peel off, and the problems such as preparation liquid adhesiveness is not strong, coat easily peels off in other inventions is efficiently solved, in film
Effectively suppress surface in the aeration process in the harsh field such as bioreactor and damaged development occur, avoid film wire rupture, carry
The high safety in utilization of film wire.
Brief description of the drawings
Fig. 1 is the shaped device structural representation according to the hollow fiber composite membrane of the preferred embodiment of the present invention；
Fig. 2 is the discharge opening schematic shapes of the coating unit included according to the device of the preferred embodiment of the present invention；
Fig. 3 is the discharge opening schematic shapes of the coating unit included according to the device of the preferred embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawings, the preferred forms of the present invention, specific implementation here are described by preferred embodiment
Mode is to explain the present invention, and should not be construed as limiting the invention, and is not departing from the spiritual and real of the present invention
In the case of matter scope, various changes and modifications can be made, these should be all included within protection scope of the present invention.
Referring to Fig. 1-3, the preferred embodiment of the present invention provides a kind of shaped device of hollow fiber composite membrane.The hollow fibre
The shaped device of dimension composite membrane includes：Liquid device 1 is film-made, it accommodates preparation liquid；Measuring pump 2, its one end pass through pipeline and system
Film liquid device 1 connects；Spray equipment 4, it is connected by pipeline with the other end of measuring pump 2；Draw-gear；And hollow rope 3
Or 5.Wherein, the spray equipment 4 is annular sleeve, and the sleeve interior surface has micropore 6, and the one end of hollow rope 3 or 5 passes through annulus
Shape sleeve is connected with draw-gear.
It is understood that the device can greatly reinforce adhesion of the preparation liquid on the surface of hollow rope 3 or 5, in film biology
Film top layer is difficult for drop-off in the harsh field application process such as reactor, prevents sewage from leaking into water up to standard.
Preferably, the micropore 6 is inner surfaces that are multiple and being evenly distributed on the sleeve.
Preferably, in addition to measuring pump 2 and draw-gear the speed control unit being connected.
Preferably, in addition to coagulation bath solidification equipment.
Preferably, annular length sleeve is 5-20cm, thickness 0.5-2cm, internal diameter 1-3mm.
Preferably, micropore 6 is shaped as bar shaped or hole shape.
Preferably, the material of the hollow rope 3 or 5 is nylon, polyethylene terephthalate or cotton.
Preferably, the material of the preparation liquid includes polyvinylidene fluoride, polysulfones, polyether sulfone and polyacrylonitrile.
Preferably, described annular length sleeve is 5-20cm, thickness 0.5-2cm, the interior a diameter of 1-3mm of survey.It is excellent
It is 10-15cm, preferred thickness 1-1.5cm to select length, preferably interior to survey a diameter of 1.2-2mm.
Preferably, described annular sleeve interior surface has an equally distributed micropore 6, micropore 6 be shaped as bar shaped or
Hole shape.As annular sleeve interior surface is expanded into plane, then its inner surface configuration is as Figure 2-3.Described bar shaped micropore 6
Length is 3-5mm, width 1-2mm, preferred length 3-5mm, width 1.2-1.5mm.Described hole shape micropore 6 is a diameter of
0.3-0.5mm, preferably 0.4mm.
Preferably, as shown in Figures 1 to 3, present invention also offers a kind of shaped device of hollow fiber composite membrane, wherein,
The preparation liquids such as polyvinylidene fluoride (PVDF), polysulfones (PS), polyether sulfone (PES), polyacrylonitrile (PAN) are passed through measuring pump respectively
2 squeeze into apparatus of the present invention.Meanwhile the hollow ropes 3 or 5 such as nylon, polyethylene terephthalate (PET), cotton cord are imported and are somebody's turn to do
Invention device, using hauling machine by certain speed traction hollow rope 3 or 5, after hollow rope 3 or 5 is by apparatus of the present invention, surface quilt
Uniformly coating last layer preparation liquid, form nascent hollow fiber composite membrane.The nascent hollow fiber composite membrane is consolidated by coagulation bath
After change, the hollow fiber composite membrane product available for sewage disposal is made.It can strengthen preparation liquid pair by increasing the speed of measuring pump 2
Restrict the immersion on surface, so that coat is unlikely to be peel off, efficiently solve that preparation liquid adhesiveness in other inventions is strong, coating
The problems such as layer easily peels off.
Preferably, the device is annular sleeve, and the annular sleeve outer surface one end connects measuring pump 2, inner surface tool
There is equally distributed micropore 6.
Preferably, described annular length sleeve is 5-20cm, thickness 0.5-2cm, the interior a diameter of 1-3mm of survey.
Preferably, described annular sleeve interior surface has an equally distributed micropore 6, micropore 6 be shaped as bar shaped or
Hole shape.As annular sleeve interior surface is expanded into plane, then its inner surface configuration is as shown in Figure 2.
Preferably, described material of preparing is polyvinylidene fluoride (PVDF), polysulfones (PS), polyether sulfone (PES), polypropylene
Nitrile (PAN) etc..
Preferably, described doughnut rope is nylon, polyethylene terephthalate (PET), cotton cord etc..
Preferably, the device is respectively polyvinylidene fluoride (PVDF), polysulfones (PS), polyether sulfone (PES), polyacrylonitrile
(PAN) raw material and solvent (such as dimethyl acetamide DMAc, 1-METHYLPYRROLIDONE NMP etc.), perforating agent (such as the poly- second such as
Glycol PEG, sodium carboxymethylcellulose Na-CMC etc.) mix by a certain percentage, preparation liquid is formed, the preparation liquid passes through measuring pump 2
Squeeze into apparatus of the present invention.Meanwhile the hollow ropes 3 or 5 such as nylon, polyethylene terephthalate (PET), cotton cord are imported into the dress
Put, using hauling machine by certain speed traction hollow rope 3 or 5, after hollow rope 3 or 5 is by the present apparatus, surface is covered with by uniform painting
One layer of preparation liquid, form nascent hollow fiber composite membrane.For the nascent hollow fiber composite membrane after coagulation bath solidifies, being made can
Hollow fiber composite membrane product for sewage disposal.Apparatus of the present invention increase the speed of measuring pump 2 by improving coating processes
Immersion of the preparation liquid to surface of restricting can be strengthened, absorption affinity of the film top layer to supporting rope layer is greatly improved, so that coat is not allowed
Easily peel off, the problems such as preparation liquid adhesiveness is not strong, coat easily peels off in other inventions is efficiently solved, in membrane bioreactor
Effectively suppress surface in aeration process etc. harsh field and damaged development occur, avoid film wire rupture, improve film wire
Safety in utilization.
Preferably, table 1 represents to control ratio of the different coating pressure to coating cortex peel strength by the rotating speed of measuring pump 2
Compared with：
It is understood that using hollow fiber composite membrane made from the present apparatus, by improving coating processes so that production
Product have simultaneously well attachment and pliability, film stretching intensity be up to 300N, hymeniderm layer peel strength up to more than 10 kilograms,
It is completely absent fracture of wire problem.And good tack makes film epidermis not peeled off in aeration process, effectively suppress surface
There is damaged development, avoid film wire rupture, improve the safety in utilization of film wire, can be widely applied to Treated sewage reusing neck
Domain.
Embodiment 1
Polyvinylidene fluoride (PVDF) powdery starting material is mixed by a certain percentage with solvent, perforating agent, forms film
Liquid, the preparation liquid squeeze into the annular sleeve that inner surface is bar shaped by measuring pump 2.Meanwhile the hollow cotton cord by external diameter for 2mm
The device is imported, using hauling machine by certain speed traction hollow rope 3 or 5, after hollow rope 3 or 5 is by the present apparatus, surface is equal
Even coating last layer preparation liquid, forms nascent hollow fiber composite membrane.The nascent hollow fiber composite membrane solidifies by coagulation bath
Afterwards, hollow fiber composite membrane product is made.The external diameter of obtained hollow-fibre membrane is 2.5mm, and its peel strength is 8.2bar.
Embodiment 2-4：
Polysulfones (PS) (embodiment 2), polyether sulfone (PES) (embodiment 3), polyacrylonitrile (PAN) (are implemented real respectively
Example 4) powdery starting material mixes by a certain percentage with solvent, perforating agent, forms preparation liquid, and the preparation liquid is squeezed by measuring pump 2
Enter the annular sleeve that inner surface is bar shaped.Meanwhile the hollow cotton cord that external diameter is 2mm is imported into the device, pressed using hauling machine
Certain speed draws hollow rope 3 or 5, and after hollow rope 3 or 5 is by the present apparatus, surface is uniformly coated last layer preparation liquid, is formed
Nascent hollow fiber composite membrane.Hollow fiber composite membrane production is made after coagulation bath solidifies in the nascent hollow fiber composite membrane
Product.The external diameter of obtained hollow-fibre membrane is 2.5mm, and its peel strength is 10.2bar, 10.5bar, 9.7bar.
Embodiment 5-6：
Composite hollow fiber membrane is prepared by embodiment 1-4 identical method and steps.Except that this example 5-6 is used
Hollow rope 3 or 5 be nylon and PET.The external diameter of obtained hollow-fibre membrane is 2.3mm, its peel strength be 8.2bar,
8.6bar.It can be seen that preparation liquid is most strong to the adhesion of cotton base material in three kinds of base materials under the same terms.
In summary, the beneficial effects of the present invention are：The device can greatly reinforce preparation liquid on the surface of hollow rope 3 or 5
Adhesion, film top layer is difficult for drop-off in the harsh field application process such as membrane bioreactor, and it is up to standard to prevent that sewage from leaking into
In water.Using hollow fiber composite membrane made from apparatus of the present invention, by improving coating processes simultaneously so that product has very
Good attachment and pliability, film stretching intensity is up to 300N, is completely absent fracture of wire problem.And good tack makes film epidermis
It will not be peeled off in aeration process, effectively suppress surface and damaged development occur, avoided film wire rupture, improve film wire
Safety in utilization.
The invention is not restricted to above-mentioned specific embodiment.It is understood that spirit and substance of the present invention model is not being departed from
In the case of enclosing, various changes and modifications can be made, these should be all included within protection scope of the present invention.
Claims (4)
1. a kind of method that hollow fiber composite membrane product is made in shaped device using hollow fiber composite membrane, it is characterised in that
The shaped device of the hollow fiber composite membrane with lower part by being formed：
Liquid device is film-made, it accommodates preparation liquid；
Measuring pump, its one end are connected by pipeline with film liquid device；
Spray equipment, it is connected by the other end of pipeline and measuring pump；
Draw-gear；
Hollow rope, by nylon, polyethylene terephthalate or cotton into；
Coagulation bath solidification equipment；And
The speed control unit being connected with measuring pump and draw-gear；
Wherein, the spray equipment is made up of cylindrical sleeve, and the cylindrical sleeve length is 5-20cm, thickness 0.5-2cm, interior
Footpath is 1-3mm, and the sleeve interior surface has micropore, and hollow rope one end is connected through cylindrical sleeve with draw-gear；
Wherein, methods described comprises the steps of：The preparation liquid squeezes into the cylindrical sleeve, cylindrical shroud by measuring pump
Hollow bulb of the preparation liquid via the micropore even application of sleeve interior surface on hollow rope surface without entrance hollow rope in cylinder, in
Sky rope surface is uniformly coated last layer preparation liquid, forms nascent hollow fiber composite membrane, the nascent hollow fiber composite membrane warp
After crossing the solidification of coagulation bath solidification equipment coagulation bath, one layer of painting by hollow rope and hollow rope surface available for sewage disposal is made
The hollow fiber composite membrane product of coating composition, the speed control unit are used to increase metering revolution speed to control coating pressure
To strengthen immersion of the preparation liquid to hollow rope surface, absorption affinity of the film top layer to supporting rope layer is greatly improved, so that coat
It is unlikely to be peel off；
Wherein, the tensile strength of hollow fiber composite membrane product is up to 300N, and hymeniderm layer peel strength is up to more than 10 kilograms.
2. according to the method for claim 1, it is characterised in that the micropore is multiple and be evenly distributed on the sleeve
Inner surface.
3. according to the method for claim 1, it is characterised in that micropore is shaped as bar shaped or hole shape.
4. according to the method for claim 1, it is characterised in that the material of the preparation liquid includes polyvinylidene fluoride, gathered
Sulfone, polyether sulfone and polyacrylonitrile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610603320.5A CN106215712B (en) | 2016-07-28 | 2016-07-28 | The shaped device of hollow fiber composite membrane |
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|---|---|---|---|
| CN201610603320.5A CN106215712B (en) | 2016-07-28 | 2016-07-28 | The shaped device of hollow fiber composite membrane |
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| CN106215712A CN106215712A (en) | 2016-12-14 |
| CN106215712B true CN106215712B (en) | 2018-01-02 |
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| CN111804156A (en) * | 2019-04-11 | 2020-10-23 | 德威华泰科技股份有限公司 | Porous device and method for preparing enhanced hollow fiber membrane at high speed |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101421021A (en) * | 2006-04-10 | 2009-04-29 | 佛兰芒技术研究所 | Knitted support for tubular membranes |
| CN104096485A (en) * | 2014-07-29 | 2014-10-15 | 枫科(北京)膜技术有限公司 | Equipment for preparing enhanced compound supporting hollow fiber film |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101406810A (en) * | 2008-11-06 | 2009-04-15 | 复旦大学 | Thermally induced phase separation method for preparing enhancement type composite hollow fiber membrane |
| CN102160967B (en) * | 2011-03-21 | 2013-06-26 | 南京工业大学 | Lining-reinforced hollow fiber membrane tube as well as preparation device and preparation method thereof |
| CN103007778B (en) * | 2012-12-20 | 2015-12-23 | 北京碧水源膜科技有限公司 | A kind of preparation method of enhancement type hollow fiber compound film and device |
| CN104815563A (en) * | 2015-04-20 | 2015-08-05 | 天津工业大学 | Reinforced hollow fibrous membrane and preparation method thereof |
| CN105056773B (en) * | 2015-07-26 | 2017-08-15 | 杭州汉膜新材料科技有限公司 | The preparation method of the embedded hollow composite membrane of enhancing in original position |
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- 2016-07-28 CN CN201610603320.5A patent/CN106215712B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101421021A (en) * | 2006-04-10 | 2009-04-29 | 佛兰芒技术研究所 | Knitted support for tubular membranes |
| CN104096485A (en) * | 2014-07-29 | 2014-10-15 | 枫科(北京)膜技术有限公司 | Equipment for preparing enhanced compound supporting hollow fiber film |
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