CN101912736A - Hollow fiber ultrafiltration membrane technique - Google Patents
Hollow fiber ultrafiltration membrane technique Download PDFInfo
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- CN101912736A CN101912736A CN2010102275477A CN201010227547A CN101912736A CN 101912736 A CN101912736 A CN 101912736A CN 2010102275477 A CN2010102275477 A CN 2010102275477A CN 201010227547 A CN201010227547 A CN 201010227547A CN 101912736 A CN101912736 A CN 101912736A
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- ultrafiltration membrane
- hollow fiber
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- ultrafiltration
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Abstract
The invention discloses a hollow fiber ultrafiltration membrane technique. The production process flow comprises an emulsification stage, a stirring stage, a spinning stage, a fiber finishing stage, a cutting stage and a glue injection detection stage, wherein in the cutting stage, the aired spun fiber is cut into required length according to the specification. The hollow fiber ultrafiltration membrane obtained by the hollow fiber ultrafiltration membrane technique has a stable filtering effect; the operation cost per ton of an ultrafiltration membrane system which runs with low energy consumption at the normal temperature and is used for treating the surface water at the speed of 10 T/H is only 0.28 yuan; the efficiency is high, the utilization rate of the stock solution is high with small waste, and the recovery rate of a running water treatment ultrafiltration system is over 95 percent; the ultrafiltration separation process is pure physical separation at the normal temperature, so the property of the substance subjected to the ultrafiltration separation does not change and the secondary residue is not generated; and ultrafiltration membrane can be prepared in products with different precisions according to different purposes.
Description
[technical field]
The present invention relates to a kind of membrane separation technique field, particularly a kind of novel hollow fiber ultrafiltration membrane technical field.
[background technology]
The well-known outer image of hollow-fibre membrane (hollow fiber membrane) is fibrous, has the film of self-supporting effect.It is a kind of of anisotropic membrane, and its compacted zone can be positioned at the outer surface of fiber/as reverse osmosis membrane, also can be positioned at the inner surface (as micro-filtration membrane and milipore filter) of fiber.Concerning gas separation membrane, compacted zone is positioned at inner surface or outer surface all can.Its application is carried out water treatment by membrane technology, is applied to pharmacy, brewages, productive life sewage disposal such as food and drink, chemical industry, municipal wastewater return commission, hospital, community wastewater are used, papermaking.Membrane separation technique is a kind of isolation technics that solution or gaseous matter separate, concentrate and purify that is widely used in.The membranous wall micropore gathers, and by a side of film, it is filter liquor that solvent and little molecule solute see through membranous wall to stoste under certain pressure, and big molecule solute tunicle is held back, the purpose that reaches separating substances and concentrate.The film separation process is the dynamic filtration process, and big molecule solute is intercepted by membranous wall, flows out with concentrate, and film is difficult for blocked, can use for a long time continuously.Filter process can move under normal temperature, low pressure, and no phase-state change is energy-efficient.Hollow-fibre membrane is a kind of important form of diffusion barrier, my company's film product comprises the little worry film of doughnut (MF), hollow fiber ultrafiltration membrane (UF), doughnut reverse osmosis membrane (RO), doughnut curtain type membrane (FPM) etc. and MBR The Application of Technology, is mainly used in mineral water purification, the purification of productive life water, medical purification, concentration of juices, papermaking and electroplates chemical industry etc. and pollute industries such as medicine, chemical industry, building, weaving, papermaking, petrochemical industry such as industry water treatment and recovery, urban sewage recycling.
And traditional hollow fiber ultrafiltration membrane technology, since the deficiency of its preparation method, its filter effect instability, and energy consumption is higher, inefficiency.
[summary of the invention]
For solving above deficiency, the invention provides a kind of hollow fiber ultrafiltration membrane technology, stable according to its filter effect of this method gained hollow fiber ultrafiltration membrane, energy consumption is low, efficient is high has a very strong practicality.
The hollow fiber ultrafiltration membrane technology mainly is the nanofiltration material of raw material with PVC, hollow fiber ultrafiltration membrane technology hyperfiltration technique principle is a kind of nanoscale film isolation technics, the hollow-fibre membrane silk is a filter medium, with film silk inside and outside differential pressure is driving force, by certain pore size filter the material of different physical diameter sizes in the solution is carried out separation process, to reach solution purification, separation, purification, concentrated purpose.
Based on above know-why, a kind of its technological process of production of hollow fiber ultrafiltration membrane technology:
Emulsifying stage: textile materials such as PVC are carried out emulsification in proportion, make it allow various raw material dissolve mutually fully at emulsion tank;
Agitation phases: the solution that emulsification is good is squeezed in the stirring pipe with double-layer heat insulation, and the constant temperature that the driving stirring pipe is allowed to condition at about 45 degree stirred 10-12 hour down, guaranteed that solution stirs, and as seen liquid penetrating;
The spinning stage: after stirring, by measuring pump solution is squeezed into from stirring pipe in the pipeline, made it become silk by spinning head again, spinning requirement film silk filtration progress reaches 0.01 micron, water-flowing amount 3KG hydraulic pressure be issued to every square metre of 350-450 liter/hour;
Filament stage: the ultrafiltration membrane filaments that will draw is made certain-length, immerses in the Water Tank with Temp.-controlled, and the time is 2 days, then milipore filter is dried the success of spinning so far;
The cutting stage: the silk that will spin after will drying is cut into needed length according to specification requirement;
Injecting glue detection-phase: will detect the cooperation warehouse-in behind the milipore filter injecting glue or be installed in different family expenses or the industrial filter.
Can hold back following material by the hollow fiber ultrafiltration membrane that above method obtained:
1, larger molecular organics
As fat, grease, protein, starch, emulsion, latex, pigment, enzyme, zymotic fluid, amino acid, pigment, polysaccharide, albumin, egg white;
2, microorganism
For example bacterium, virus, Cryptosporidium, Escherichia coli, parasite vaccine, algae;
3, colloid
Colloid silicon, colloidal aluminum, colloid card;
4, suspension
Precipitated metal thing, suspended solid.
Beneficial effect of the present invention: by hollow fiber ultrafiltration membrane that the present invention obtains, its filter effect is stable; Only 0.28 yuan of the ton water running expense of the ultrafiltration membrane system of the following operation processing of low-energy consumption normal-temperature surface water 10T/H; High efficiency, the utilization rate height of stoste is wasted for a short time, and the rate of recovery of handling the running water ultrafiltration system is up to more than 95%; The ultra-filtration and separation process belongs to the pure physical separation under the normal temperature, needn't worry material generation change of properties after the ultra-filtration and separation, does not have secondary retained; Ultrafiltration can be made into the different accuracy product at different application.
Further understand feature of the present invention and technology contents for making, see embodiment of the present invention for details, yet appended embodiment is only for reference and explanation usefulness, and the present invention is limited.
[specific embodiment]
A kind of hollow fiber ultrafiltration membrane technology is to implement in the following manner: a kind of its technological process of production of hollow fiber ultrafiltration membrane technology:
Emulsifying stage: textile materials such as PVC are carried out emulsification in proportion, make it allow various raw material dissolve mutually fully at emulsion tank;
Agitation phases: the solution that emulsification is good is squeezed in the stirring pipe with double-layer heat insulation, and the constant temperature that the driving stirring pipe is allowed to condition at about 45 degree stirred 10-12 hour down, guaranteed that solution stirs, and as seen liquid penetrating;
The spinning stage: after stirring, by measuring pump solution is squeezed into from stirring pipe in the pipeline, made it become silk by spinning head again, spinning requirement film silk filtration progress reaches 0.01 micron, water-flowing amount 3KG hydraulic pressure be issued to every square metre of 350-450 liter/hour;
Filament stage: the ultrafiltration membrane filaments that will draw is made certain-length, immerses in the Water Tank with Temp.-controlled, and the time is 2 days, then milipore filter is dried the success of spinning so far;
The cutting stage: the silk that will spin after will drying is cut into needed length according to specification requirement;
Injecting glue detection-phase: will detect the cooperation warehouse-in behind the milipore filter injecting glue or be installed in different family expenses or the industrial filter.
It implements concrete technical standard:
Membrane material is a modified PVC, serviceability temperature is the 5-45 degree, use pH value to be 2-13, maximum saturating mould difference is 0.2MPA, and can tolerate continuous residual chlorine concentration is 100PPM, can tolerate intermittently residual chlorine concentration 200PPM, maximum intake pressure is 0.3MPA, producing water turbidity is less than 0.1NTU, microbial bacterial clearance 99.99%, and the suspended substance removal rate is 100%.
By hollow fiber ultrafiltration membrane that the present invention obtains, its filter effect is stable; Only 0.28 yuan of the ton water running expense of the ultrafiltration membrane system of the following operation processing of low-energy consumption normal-temperature surface water 10T/H; High efficiency, the utilization rate height of stoste is wasted for a short time, and the rate of recovery of handling the running water ultrafiltration system is up to more than 95%; The ultra-filtration and separation process belongs to the pure physical separation under the normal temperature, needn't worry material generation change of properties after the ultra-filtration and separation, does not have secondary retained; Ultrafiltration can be made into the different accuracy product at different application.
Yet the preferable feasible embodiment of above-mentioned only the present invention, non-so limitation protection domain of the present invention is done various distortion or is applied mechanically all within this technical scheme protection domain according to the foregoing description.
Claims (1)
1. its technological process of production of hollow fiber ultrafiltration membrane technology:
Emulsifying stage: textile materials such as PVC are carried out emulsification in proportion, make it allow various raw material dissolve mutually fully at emulsion tank;
Agitation phases: the solution that emulsification is good is squeezed in the stirring pipe with double-layer heat insulation, and the constant temperature that the driving stirring pipe is allowed to condition at about 45 degree stirred 10-12 hour down, guaranteed that solution stirs, and as seen liquid penetrating;
The spinning stage: after stirring, by measuring pump solution is squeezed into from stirring pipe in the pipeline, made it become silk by spinning head again, spinning requirement film silk filtration progress reaches 0.01 micron, water-flowing amount 3KG hydraulic pressure be issued to every square metre of 350-450 liter/hour;
Filament stage: the ultrafiltration membrane filaments that will draw is made certain-length, immerses in the Water Tank with Temp.-controlled, and the time is 2 days, then milipore filter is dried the success of spinning so far;
The cutting stage: the silk that will spin after will drying is cut into needed length according to specification requirement;
Injecting glue detection-phase: will detect the cooperation warehouse-in behind the milipore filter injecting glue or be installed in different family expenses or the industrial filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102275477A CN101912736A (en) | 2010-07-15 | 2010-07-15 | Hollow fiber ultrafiltration membrane technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102275477A CN101912736A (en) | 2010-07-15 | 2010-07-15 | Hollow fiber ultrafiltration membrane technique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101912736A true CN101912736A (en) | 2010-12-15 |
Family
ID=43320464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102275477A Pending CN101912736A (en) | 2010-07-15 | 2010-07-15 | Hollow fiber ultrafiltration membrane technique |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101912736A (en) |
-
2010
- 2010-07-15 CN CN2010102275477A patent/CN101912736A/en active Pending
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20101215 |
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| WD01 | Invention patent application deemed withdrawn after publication |