CN102888668B - A kind of technique by device fabrication hollow fiber ultrafiltration membrane - Google Patents
A kind of technique by device fabrication hollow fiber ultrafiltration membrane Download PDFInfo
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- CN102888668B CN102888668B CN201110204544.6A CN201110204544A CN102888668B CN 102888668 B CN102888668 B CN 102888668B CN 201110204544 A CN201110204544 A CN 201110204544A CN 102888668 B CN102888668 B CN 102888668B
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- hollow fiber
- ultrafiltration membrane
- fiber ultrafiltration
- die head
- filter
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- 239000012510 hollow fiber Substances 0.000 title claims abstract description 46
- 239000012528 membrane Substances 0.000 title claims abstract description 46
- 238000000108 ultra-filtration Methods 0.000 title claims abstract description 46
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000005266 casting Methods 0.000 claims abstract description 28
- 239000002994 raw material Substances 0.000 claims abstract description 12
- 230000006837 decompression Effects 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 238000003756 stirring Methods 0.000 claims description 10
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 8
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 6
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 6
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 claims description 6
- 239000004800 polyvinyl chloride Substances 0.000 claims description 5
- 238000006116 polymerization reaction Methods 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 3
- 235000005074 zinc chloride Nutrition 0.000 claims description 3
- 239000011592 zinc chloride Substances 0.000 claims description 3
- 108091003079 Bovine Serum Albumin Proteins 0.000 claims description 2
- 229940098773 bovine serum albumin Drugs 0.000 claims description 2
- 230000004907 flux Effects 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 229920000036 polyvinylpyrrolidone Polymers 0.000 claims 1
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 claims 1
- 239000001267 polyvinylpyrrolidone Substances 0.000 claims 1
- 238000007872 degassing Methods 0.000 abstract description 6
- 230000007423 decrease Effects 0.000 abstract description 4
- 238000001914 filtration Methods 0.000 abstract description 4
- -1 16-die head Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000007654 immersion Methods 0.000 description 2
- 238000011068 loading method Methods 0.000 description 2
- 229920006316 polyvinylpyrrolidine Polymers 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000013019 agitation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
Abstract
The present invention relates to a kind of equipment manufacturing hollow fiber ultrafiltration membrane, equipment body parts comprise two reactors, pressure sensor, interior medium introducing port, die head, outer media slot, outer medium after pressure sensor, die head filter, filter before valve, connecting line, casting solution filter, extruder feed in raw material hopper, double screw extruder, exhaust outlet, measuring pump, filter.Except outside medium and outer media slot, connected by pipeline between the said equipment, outer medium and outer media slot are below die head.Leave standstill in the traditional hollow fiber ultrafiltration membrane production process of the said equipment customer service, time of decompression or evacuation and centrifugal degassing at least need a few hours technique bottleneck of even tens hours, substantially increase the efficiency of production hollow fiber ultrafiltration membrane, decrease the degraded manufacturing hollow fiber ultrafiltration membrane raw material simultaneously, thus improve hollow fiber ultrafiltration membrane intensity and filtering accuracy.
Description
Technical field
The invention belongs to milipore filter and manufacture field, particularly a kind of technique by device fabrication hollow fiber ultrafiltration membrane.
Technical background
Hollow fiber ultrafiltration membrane is the filter medium that a kind of high molecular synthetic material manufactures, and carries out Selective Separation, realize the purification to original solution, separation and concentrated object by the micropore of hollow fiber ultrafiltration membrane inner surface or outer surface to material.Hollow fiber ultrafiltration membrane is widely used in water treatment, medical industry, food industry and environmental project etc.Existing hollow fiber ultrafiltration membrane production method mostly adopt can temperature control, stirring, dissolve the raw material of masking in compressive reaction still, casting solution is obtained after blended under agitation is even, by casting solution through long-time to leave standstill, after decompression or evacuation and centrifugal degassing, by measuring pump, casting solution and inner gel medium are extruded tubulose liquid film by spinneret simultaneously, this liquid film enters in outer setting medium through the airspace of 0-80 centimetre and solidifies, through rinsing, after immersion, obtained hollow fiber ultrafiltration membrane.Because the bubble in casting solution directly causes the defect in the micropore of hollow fiber ultrafiltration membrane inner surface or outer surface, thus affect the filtering accuracy of hollow fiber ultrafiltration membrane, therefore leave standstill in hollow fiber ultrafiltration membrane production process at present, time of decompression or evacuation and centrifugal degassing at least needs even tens hours a few hours, greatly have impact on the efficiency of production hollow fiber ultrafiltration membrane, simultaneously, because the macromolecular material that manufactures film raw material is very easy to degrade when high-temperature fusion or dissolving, the physical and chemical performance of most telolemma product is caused to decline.
Summary of the invention
The object of this invention is to provide a kind of equipment manufacturing hollow fiber ultrafiltration membrane, this equipment can improve the production efficiency manufacturing hollow fiber ultrafiltration membrane, ensures product quality, reduces production cost, and easy to operate.
The object of the invention is to be realized by following scheme: a kind of equipment manufacturing hollow fiber ultrafiltration membrane, equipment body parts comprise two reactors, pressure sensor, interior medium introducing port, die head, outer media slot, outer medium after pressure sensor, die head filter, filter before valve, connecting line, casting solution filter, extruder feed in raw material hopper, double screw extruder, exhaust outlet, measuring pump, filter.Except outside medium and outer media slot, connected by pipeline between the said equipment, outer medium and outer media slot are below die head.It is characterized in that two reactors are the reactor of controllable temperature, stirring and pressurization; Wherein casting solution filter adopts 40-600 object screen pack; Double screw extruder has nature exhaust or decompression exhaust function; Die head filter adopts 80-800 object screen pack, and the radical that die head extrudes hollow fiber ultrafiltration membrane is single or many; Die head to outer WATER AS FLOW MEDIUM plan range is 0-80 centimetre.
Adopt the production technology of the said equipment as follows: to add in reactor A by the raw material manufacturing hollow fiber ultrafiltration membrane, blending and stirring evenly opens reactor A afterwards, casting solution is made to enter double screw extruder loading hopper by casting solution filter by pressurization in reactor A, blended through double screw extruder, stir, upgrade casting solution interface, bubble in casting solution is pressurizeed through measuring pump by the exhaust outlet eliminating of twin-screw, extrude the single or many liquid films of tubulose by die head with inner gel medium through die head filter simultaneously, this liquid film enters in outer setting medium through the airspace of 0-80 centimetre and solidifies, through rinsing, after immersion, obtained hollow fiber ultrafiltration membrane.By reactor A, valve A and reactor B, the using in turn and open of valve B, the object of continuous prodution can be realized.
The invention has the beneficial effects as follows: to leave standstill in traditional hollow fiber ultrafiltration membrane production process due to customer service, time of decompression or evacuation and centrifugal degassing at least need a few hours technique bottleneck of even tens hours, substantially increase the efficiency of production hollow fiber ultrafiltration membrane, decrease the degraded manufacturing hollow fiber ultrafiltration membrane raw material simultaneously, thus improve hollow fiber ultrafiltration membrane intensity and filtering accuracy.
Figure of description
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is a kind of structural representation of the present invention
In figure: 1-reactor A, 2-reactor B, 3-valve A, 4-valve B, 5-connecting line, 6-casting solution filter, 7-extruder feeds in raw material hopper, 8-double screw extruder, 9-exhaust outlet, 10-measuring pump, pressure sensor before 11-filter, 12-die head filter, the outer media slot of 13-, the outer medium of 14-, 15-hollow fiber ultrafiltration membrane, 16-die head, medium introducing port in 17-, pressure sensor after 18-filter.
Detailed description of the invention
Be described further such scheme below in conjunction with specific embodiment, following embodiment does not limit the scope of the invention for illustration of the present invention.In embodiment, not marked condition is generally the condition in conventional production.
Manufacture an equipment for hollow fiber ultrafiltration membrane, equipment body parts comprise reactor A 1, reactor B2, pressure sensor 18, interior medium introducing port 17, die head 16, outer media slot 13, outer medium 14 after pressure sensor 11, die head filter 12, filter before valve A 3, valve B 4, connecting line 5, casting solution filter 6, extruder feed in raw material hopper 7, double screw extruder 8, exhaust outlet 9, measuring pump 10, filter.Except outside medium and outer media slot, connected by pipeline between the said equipment, two reactors are the reactor of controllable temperature, stirring and pressurization, wherein casting solution filter adopts 100 object screen packs, double screw extruder has nature degassing function, die head filter adopts 300 object screen packs, and die head extrudes 8 hollow fiber ultrafiltration membrane, and die head to outer WATER AS FLOW MEDIUM plan range is 10 centimetres.
Formula and the technique of employing the said equipment production hollow fiber ultrafiltration membrane are as follows:
| Material | Quality (gram) |
| Polychloroethylene with high polymerization degree (degree of polymerization 2500) | 800 |
| Polyvinylpyrrolidone (K30) | 240 |
| Zinc chloride | 100 |
| Water | 50 |
| TM181 | 20 |
| Dimethyl formamide | 5000 |
It is the polyvinyl chloride (degree of polymerization 2500) of 80/24/10/5/2/500 by mass ratio, polyvinylpyrrolidone (K30), zinc chloride, water, TM181, dimethyl formamide blend adds in the reactor A of 80 DEG C, reactor A is opened after 2 hours blending and stirring are even, casting solution is made to enter double screw extruder loading hopper by casting solution filter by pressurization in reactor A, blended through double screw extruder, stir, upgrade casting solution interface, bubble in casting solution is got rid of by the exhaust outlet of twin-screw, casting solution pressurizes through measuring pump, extrude tubulose 8 liquid films by die head through die head filter and inner gel medium simultaneously, this liquid film enters solidification in outer setting medium (water of 20 DEG C) through the airspace of 10 centimetres, through rinsing in 20 hours, to soak in 25% glycerol liquor after 12 hours, obtained PVC hollow fiber ultrafiltration membrane.Before filter, the casting solution pressure of die head filter and die head monitored respectively by pressure sensor 11 and the rear pressure sensor 18 of filter, guarantees casting solution steady extruding.By reactor A, valve A and reactor B, the using in turn and open of valve B, realize continuous prodution.Adopt the hollow fiber ultrafiltration membrane of the said equipment production after measured, film silk external diameter 1.9 millimeters, film silk wall thickness 0.3-0.50 millimeter, pure water flux 800L/m
2h (0.1MPa, external pressure); Bovine serum albumin (67000MW) rejection 99%, tension failure force value 9.8 newton, elongation at break 50%, fracture pressure 0.50MPa.
Leave standstill in traditional hollow fiber ultrafiltration membrane production process due to customer service, time of decompression or evacuation and centrifugal degassing at least need a few hours technique bottleneck of even tens hours, substantially increase the efficiency of production hollow fiber ultrafiltration membrane, decrease the degraded manufacturing hollow fiber ultrafiltration membrane raw material simultaneously, thus improve hollow fiber ultrafiltration membrane intensity and filtering accuracy.
Claims (6)
1. the technique by device fabrication hollow fiber ultrafiltration membrane, it is characterized in that, equipment body parts comprise reactor A, reactor B, valve A, valve B, connecting line, casting solution filter, double screw extruder, double screw extruder feeds in raw material hopper, exhaust outlet, measuring pump, pressure sensor before filter, die head filter, pressure sensor after filter, interior medium introducing port, die head, outer media slot, outer medium, except outside medium and outer media slot, connected by pipeline between the said equipment, outer medium and outer media slot are below die head, described double screw extruder has nature exhaust or decompression exhaust function,
Described technique comprises:
Be that the polyvinyl chloride of 80:24:10:5:2:500, polyvinylpyrrolidone, zinc chloride, water, TM181 and dimethyl formamide blend add in the reactor A of 80 DEG C by mass ratio, the degree of polymerization of described polyvinyl chloride is 2500;
Described reactor A is opened after 2 hours blending and stirring are even, make casting solution enter described double screw extruder by described casting solution filter by pressurization in described reactor A to feed in raw material hopper, blended through described double screw extruder, stir, upgrade described casting solution interface, the bubble in described casting solution is got rid of by described exhaust outlet;
Described casting solution pressurizes through described measuring pump, extruded the liquid film of tubulose by described die head through described die head filter and inner gel medium simultaneously, described liquid film enters in the water of 20 DEG C through the airspace of 10 centimetres and solidifies, through rinsing in 20 hours, soak in 25% glycerol liquor after 12 hours, obtained PVC hollow fiber ultrafiltration membrane;
The film silk external diameter of manufactured hollow fiber ultrafiltration membrane is 1.9 millimeters, and film silk wall thickness is 0.3-0.5 millimeter, is 800L/m at the outer pressure pure water flux of 0.1MPa
2h is 99% to the rejection of the bovine serum albumin of 67000MW, and tension failure force value is 9.8 newton, and elongation at break is 50%, and burst pressure is 0.50MPa.
2. a kind of technique by device fabrication hollow fiber ultrafiltration membrane according to claim 1, is characterized in that two reactors are the reactor of controllable temperature, stirring and pressurization.
3. a kind of technique manufacturing hollow fiber ultrafiltration membrane according to claim 1, is characterized in that casting solution filter adopts 40-600 object screen pack.
4. a kind of technique manufacturing hollow fiber ultrafiltration membrane according to claim 1, is characterized in that die head filter adopts 80-800 object screen pack.
5. a kind of technique manufacturing hollow fiber ultrafiltration membrane according to claim 1, is characterized in that the radical that die head extrudes hollow fiber ultrafiltration membrane is single or many.
6. a kind of technique manufacturing hollow fiber ultrafiltration membrane according to claim 1, is characterized in that die head to outer WATER AS FLOW MEDIUM plan range is 0-80 centimetre.
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| CN201110204544.6A CN102888668B (en) | 2011-07-21 | 2011-07-21 | A kind of technique by device fabrication hollow fiber ultrafiltration membrane |
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| CN201110204544.6A CN102888668B (en) | 2011-07-21 | 2011-07-21 | A kind of technique by device fabrication hollow fiber ultrafiltration membrane |
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| Publication Number | Publication Date |
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| CN102888668A CN102888668A (en) | 2013-01-23 |
| CN102888668B true CN102888668B (en) | 2015-10-14 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103505937A (en) * | 2013-10-20 | 2014-01-15 | 丹阳市正大油脂有限公司 | Ultrafiltration membrane stirring and filtering device |
| CN112481708B (en) * | 2019-09-11 | 2022-08-12 | 宁波国际材料基因工程研究院有限公司 | High-flux polymer fiber preparation equipment and preparation method thereof |
| CN111467972B (en) * | 2020-04-02 | 2021-11-16 | 苏州立升净水科技有限公司 | Hollow fiber membrane production line and preparation method of hollow fiber membrane |
| CN111644074B (en) * | 2020-07-17 | 2022-12-30 | 安徽森诺膜技术有限公司 | Polyvinylidene fluoride hollow fiber membrane and preparation method thereof |
| CN114733364B (en) * | 2021-01-07 | 2023-06-30 | 杭州费尔新材料有限公司 | Preparation method of low-impurity polyolefin hollow fiber membrane |
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Effective date of registration: 20180904 Address after: 224300 No. 2, Northwest Road, Airport Road, Pioneer Park, hop Town, Sheyang, Yancheng City, Jiangsu Patentee after: Jiangsu Jin Tong Technology Co.,Ltd. Address before: 100083 D, 1109, Cheng Sheng mansion, 28 Cheng Fu Road, Haidian District, Beijing. Patentee before: BEIJING KINGFLUX TECH Co.,Ltd. |
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Effective date of registration: 20231206 Address after: Room 01211, Building 1, No. 68 Beiqing Road, Haidian District, Beijing, 100081 Patentee after: BEIJING KINGFLUX TECH Co.,Ltd. Address before: 224300 No. 2, Northwest Road, Airport Road, Pioneer Park, hop Town, Sheyang, Yancheng City, Jiangsu Patentee before: Jiangsu Jin Tong Technology Co.,Ltd. |