CN202590642U - Manufacturing device for porous hollow fiber membrane - Google Patents
Manufacturing device for porous hollow fiber membrane Download PDFInfo
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- CN202590642U CN202590642U CN 201220218858 CN201220218858U CN202590642U CN 202590642 U CN202590642 U CN 202590642U CN 201220218858 CN201220218858 CN 201220218858 CN 201220218858 U CN201220218858 U CN 201220218858U CN 202590642 U CN202590642 U CN 202590642U
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- porous matter
- hollow
- supporting mass
- fibre membrane
- film precursor
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Abstract
The utility model discloses a manufacturing device (1) for a porous hollow fiber membrane. The porous hollow fiber membrane is provided with a porous membrane layer outside a hollow reinforcing support body (B); the manufacturing device for the porous hollow fiber membrane comprises a spinning spray pipe (16), a solidification tank (20) and a tension roller (18), wherein the spinning spray pipe is used for spinning in a form of coating a membrane manufacturing stock solution (A) accommodating membrane forming resin and opening agent on the outer side of the reinforcing support body (B); by the solidification tank, the membrane manufacturing stock solution (A) is solidified to form a porous hollow fiber membrane precursor (M'); and the tension roller is used for controlling tension supplied to the reinforcing support body (B) of the spinning spray pipe (16). By the device, the porous hollow fiber membrane with high quality can be stably and continuously obtained.
Description
Technical field
The utility model relates to a kind of manufacturing installation of porous matter hollow-fibre membrane.
Background technology
In fields such as food industry, medical treatment and electronics industry, with useful component concentrate and reclaim and the removal of useless composition and distillation etc. are purpose, often use and used the secondary filter film of multiple aperture plasma membrane, super filter membrane and reverse osmosis filter membrane etc.For example, as the excellent porous matter hollow-fibre membrane of mechanical property, the known outside that reinforcement supporting masses such as a kind of sennit or braid in hollow fiber are arranged is formed with the porous matter hollow-fibre membrane of multiple aperture plasma membrane layer.
Have this hollow form and strengthen the porous matter hollow-fibre membrane of supporting mass (following only be called sometimes " reinforcement supporting mass "); For example obtain: will strengthen supporting mass and be supplied in the spinning jet pipe continuously with system pleurodiaphragmatic in terspace liquid through following operation; To make the outside that pleurodiaphragmatic in terspace liquid is coated on said reinforcement supporting mass by this spinning jet pipe; So carry out spinning, said system pleurodiaphragmatic in terspace liquid is solidified and form porous matter hollow-fibre membrane, carry out operations (for example patent documentation 1) such as cleaning-drying then with solidification liquid.
Patent documentation 1: TOHKEMY 2008-114181 communique
Utility model problem to be solved
But; In the manufacturing approach of the such porous matter hollow-fibre membrane in the past of patent documentation 1; Sometimes strengthen supporting mass and strengthen the guiding parts of the advancing disengaging of supporting mass from restriction; The external diameter of perhaps strengthening supporting mass produces downsizing or flattening, the porous matter hollow-fibre membrane that stably workmanship is enough good.
The utility model content
The purpose of the utility model is, a kind of manufacturing installation of porous matter hollow-fibre membrane is provided, and can obtain high-quality porous matter hollow-fibre membrane in steady and continuous ground.
Be used to solve the means of problem
The manufacturing installation of the porous matter hollow-fibre membrane of the utility model; The outside that this porous matter hollow-fibre membrane is strengthened supporting mass at hollow form has the multiple aperture plasma membrane layer; The manufacturing installation of this porous matter hollow-fibre membrane is characterised in that; Have: spinning jet pipe, this spinning jet pipe will contain system pleurodiaphragmatic in terspace liquid that film forms property resin and pore-creating agent and carry out spinning with the form in the outside that is coated on said reinforcement supporting mass; Coagulation tank, this coagulation tank are solidified said system pleurodiaphragmatic in terspace liquid and are formed porous matter doughnut film precursor; And jockey pulley, this jockey pulley is controlled the tension force of the said reinforcement supporting mass that is supplied in said spinning jet pipe.
In addition, the downstream that is preferably in said coagulation tank is provided with rinse bath, and this rinse bath is removed said pore-creating agent from said porous matter doughnut film precursor, forms the porous matter hollow-fibre membrane with multiple aperture plasma membrane layer.
The effect of utility model
Adopt the manufacturing installation of the porous matter hollow-fibre membrane of the utility model, can make high-quality porous matter hollow-fibre membrane in steady and continuous ground.
Description of drawings
Fig. 1 be the expression the utility model porous matter hollow-fibre membrane manufacturing installation one the example sketch map.
Fig. 2 is the general configuration figure of an example of expression supporting mass manufacturing installation.
Fig. 3 is the diagrammatic sketch of the structure of expression hollow form sennit.
Fig. 4 is the enlarged drawing of the mesh of expression hollow form sennit.
Symbol description
The manufacturing installation of 1 porous matter hollow-fibre membrane
10 stoste modulating units
12 reservoir
14 supporting mass resettlement sections
16 spinning jet pipes
18 Tension Control unit
20 solidify the unit
The 20a solidification liquid
22 cleaning units
22a Tension Control unit
The 22b cleaning fluid
24 removal unit
26 drying units
28 winder units
30 guiding parts
M porous matter hollow-fibre membrane
M ' porous matter doughnut film precursor
The specific embodiment
Below, the manufacturing approach of the porous matter hollow-fibre membrane of expression the utility model and an example of manufacturing installation, and be elaborated.
(manufacturing installation)
The manufacturing installation 1 of the illustrative porous matter of Fig. 1 hollow-fibre membrane (following only be called " manufacturing installation 1 ") is that a kind of hollow form of making is strengthened the device that the outside of supporting mass has the porous matter hollow-fibre membrane of multiple aperture plasma membrane layer.
As shown in Figure 1, the manufacturing installation 1 of this example has: the stoste modulating unit 10 that the system pleurodiaphragmatic in terspace liquid A that forms said multiple aperture plasma membrane layer is modulated; Store the reservoir 12 of the system pleurodiaphragmatic in terspace liquid A after modulating; Accommodate hollow form and strengthen the supporting mass resettlement section 14 of supporting mass B (following only be called " reinforcement supporting mass B "); The spinning jet pipe 16 that will carry out spinning with the form that is coated on the reinforcement supporting mass B outside of supplying with by supporting mass resettlement section 14 by the system pleurodiaphragmatic in terspace liquid A that reservoir 12 is supplied with; The Tension Control unit 18 that the tension force of the reinforcement supporting mass B that is supplied in spinning jet pipe 16 is controlled; Utilize solidification liquid 20a that system pleurodiaphragmatic in terspace liquid A is solidified and form porous matter doughnut film precursor M ' solidify unit 20; To remain in the cleaning unit 22 that the solvent among the porous matter doughnut film precursor M ' is removed; To remain in pore-creating agent among the porous matter doughnut film precursor M ' and remove, form the removal unit 24 of the porous matter hollow-fibre membrane M with said multiple aperture plasma membrane layer; Porous matter hollow-fibre membrane M is carried out dry drying unit 26; And the winder unit 28 of coiling porous matter hollow-fibre membrane M.Porous matter hollow-fibre membrane M in the manufacturing installation 1 advances by guiding parts 30 restrictions.
Stoste modulating unit 10 is unit that modulation contains the system pleurodiaphragmatic in terspace liquid A of film formation property resin, pore-creating agent and solvent.As stoste modulating unit 10, can adopt the used known unit of modulation system pleurodiaphragmatic in terspace liquid.
Supporting mass resettlement section 14 is to accommodate the part of strengthening supporting mass B.Supporting mass resettlement section 14 is so long as can accommodate reinforcement supporting mass B and reinforcement supporting mass B is pulled out smoothly, just qualification especially.
Spinning jet pipe 16 is jet pipes that system pleurodiaphragmatic in terspace liquid A is carried out spinning with the form that is coated on the reinforcement supporting mass B outside.As spinning jet pipe 16, can adopt common manufacturing to have the used spinning jet pipe of porous matter hollow-fibre membrane of strengthening supporting mass.For example can enumerate make strengthen supporting mass B through inner, will make pleurodiaphragmatic in terspace liquid A and be emitted into cylindric and be coated on the spinning jet pipe outside this reinforcement supporting mass B.
Spinning jet pipe 16 had both formed single system pleurodiaphragmatic in terspace liquid A ejection the form of the porous matter hollow-fibre membrane M with individual layer multiple aperture plasma membrane layer, also multiple system pleurodiaphragmatic in terspace liquid A was emitted into concentric circles and formed the range upon range of combination spray pipe that the porous matter hollow-fibre membrane M of multi-layer porous plasma membrane layer is arranged.
Solidifying unit 20 is to utilize solidification liquid 20a to make the unit that is solidified and formed porous matter doughnut film precursor M ' by the system pleurodiaphragmatic in terspace liquid A after 16 spinning of spinning jet pipe.The unit 20 that solidifies of this example is; The reinforcement supporting mass B that is coated with system pleurodiaphragmatic in terspace liquid A is immersed among the solidification liquid 20a in the coagulating basin; Utilize solidification liquid 20a that system pleurodiaphragmatic in terspace liquid A is frozen into to solidify rete and form porous matter doughnut film precursor M ', then this porous matter doughnut film precursor M ' is pulled out from solidification liquid 20a.
In addition, in this example, adopt and be provided with the dry-and wet-type spinning that sky is walked the interval between spinning jet pipe 16 and the solidification liquid 20a.But, also can adopt by the wet type spinning of spinning jet pipe 16 direct fabrics in the solidification liquid 20a.
Clear Shen Danyuan 22 carries out the unit that cleaning and removing is removed with cleaning fluid 22b to the solvent that remains among the porous matter doughnut film precursor M '.This routine cleaning unit 22 is that cleaning fluid 22b is housed in the rinse bath, makes porous matter doughnut film precursor M ' multipass structure in this cleaning fluid 22b.
In addition, this routine cleaning unit 22 has the Tension Control unit 22a that the tension force of the porous matter doughnut film precursor M ' in cleaning is controlled.Through on one side the tension adjustment of porous matter doughnut film precursor M ' being become regulation tension force, on one side porous matter doughnut film precursor M ' cleaned, just be suppressed at porous matter tunica fibrosa presoma M ' in the cleaning easily and come off or the damaged phenomenon of hollow bulb of porous matter doughnut film precursor M ' from guiding parts 30 by Tension Control unit 22a.
As Tension Control unit 22a,, for example can enumerate niproll, dance roller etc. as long as can the tension adjustment of the porous matter doughnut film precursor M ' that advance be become required tension force.
As removing unit 24, can use for the pore-creating agent that will remain among the porous matter doughnut film precursor M ' and remove and normally used unit.For example can enumerate and have like the unit of lower part etc.: the porous matter doughnut film precursor M ' that make the soup that contains oxidant remain on soup maintaining part among the porous matter doughnut film precursor M ', will maintain soup heats in gas phase and makes the heating and decomposition portion of pore-creating agent oxidation Decomposition and the pore-creating agent after the low-molecular-weightization is cleaned and the cleaning and removing from porous matter doughnut film precursor M ', removed is removed portion with cleaning fluid.
As the soup maintaining part, can enumerate and have like the structure of lower part etc.: accommodate soup dipper, make it keep the soup maintaining part of soup through porous matter doughnut film precursor M ' is advanced in this soup.
As the heating and decomposition portion that the porous matter doughnut film precursor M ' that maintains soup is heated; Preferably under atmospheric pressure use and add the structure that hot fluid heats porous matter doughnut film precursor M '; See from the drying that prevents oxidants such as hypochlorite, the viewpoint that can carry out effective resolution process; Be more preferably, use the high fluid of relative humidity as the structure that adds hot fluid, under wet heat condition, heats.
Remove portion as cleaning and removing, for example can adopt the cited form of aforementioned cleaning unit 22.
Remain in the pore-creating agent in the rete that solidifies of porous matter doughnut film precursor M ' through removal, have the part of this pore-creating agent to form the hole remaining, thereby form the multiple aperture plasma membrane layer, obtain porous matter hollow-fibre membrane M thus.
The effect of guiding parts 30 is; In manufacturing installation 1, to strengthen supporting mass B, porous matter doughnut film precursor M ' and porous matter hollow-fibre membrane M from supporting mass resettlement section 14 to spinning jet pipe 16, solidify unit 20, cleaning unit 22, remove unit 24, drying unit 26, advancing of winder unit 28 limit.Through guiding parts 30 is set, it is sagging to suppress silk thread, can prevent thus to strengthen near the inside and outside and gateway of supporting mass B, porous matter doughnut film precursor M ' and porous matter hollow-fibre membrane M and each unit etc. to contact.
Guiding parts 30 can use makes the normally used guiding parts of porous matter hollow-fibre membrane, can enumerate the guiding parts of metal system or pottery system etc.
(manufacturing approach)
The manufacturing approach of the porous matter hollow-fibre membrane of the utility model is that the outside of making hollow form reinforcement supporting mass has the method for the porous matter hollow-fibre membrane of multiple aperture plasma membrane layer.The manufacturing approach of the porous matter hollow-fibre membrane of the utility model, both manufacturing had the method for the porous matter hollow-fibre membrane of individual layer multiple aperture plasma membrane layer, also made the method for the porous matter hollow-fibre membrane with multi-layer porous plasma membrane layer.
Below, the example as the manufacturing approach of the porous matter hollow-fibre membrane of the utility model describes the manufacturing approach of having used aforementioned manufacturing installation 1.The manufacturing approach of the porous matter hollow-fibre membrane of this example has following stoste modulating process, spinning and solidifies operation, matting, removal operation, drying process and coiling operation.
Stoste modulating process: utilize stoste modulating unit 10 modulation system pleurodiaphragmatic in terspace liquid A.
Operation is solidified in spinning: utilize spinning jet pipe 16 will make pleurodiaphragmatic in terspace liquid A and carry out spinning to be coated on the form of strengthening the supporting mass B outside, system pleurodiaphragmatic in terspace liquid A is solidified in solidification liquid 20a and form porous matter doughnut film precursor M ' by solidifying unit 20.
Matting: utilize 22 pairs of porous matter of cleaning unit doughnut film precursor M ' to clean and the solvent that will remain among the porous matter doughnut film precursor M ' is removed.
Remove operation: the pore-creating agent that utilizes removal unit 24 will remain among the porous matter doughnut film precursor M ' is removed, and forms porous matter hollow-fibre membrane M.
Drying process: be used in dry unit 26 pairs of porous matter hollow-fibre membrane M and carry out drying.
Coiling operation: utilize the dried porous matter hollow-fibre membrane M of winder unit 28 coilings.
The stoste modulating process:
In stoste modulating unit 10, film formation property resin and pore-creating agent are dissolved in the solvent, carry out froth breaking and modulate system pleurodiaphragmatic in terspace liquid A, the system pleurodiaphragmatic in terspace liquid A after the modulation is stored in the reservoir 12.
As strengthening supporting mass B, for example can enumerate the sennit, braid of the hollow form of processing with various fibers etc.Strengthen supporting mass B and both can use various raw material separately, also can use the various raw material after the combination.As the sennit and the employed fiber of braid of hollow form, can enumerate synthetic fibers, semisynthetic fibre, regenerated fiber and natural fiber etc.As fiber form, also a kind of in monofilament, multifilament and the staple yarn.
As film formation property resin; Can use the normally used resin of multiple aperture plasma membrane layer that forms porous matter hollow-fibre membrane, polysulfone resin, polyethersulfone resin, sulfonated polysulfone resin, polyvinylidene fluoride resin, polyacrylonitrile resin, polyimide resin, polyamide-imide resin, polyesterimide resin etc. are for example arranged.Can as required and suitably select to use these materials, wherein, see that polyvinylidene fluoride resin is best from chemical sproof viewpoint.
Film formation property resin both can use a kind of separately, also can use in the lump more than two kinds.
As pore-creating agent, for example can use with polyethylene glycol to be hydrophilic macromolecule resins such as the pure system of the list of representative, glycol system, trihydroxylic alcohol system, polyvinylpyrrolidone.Can suitably select to use these materials as required, wherein, see, preferably polyvinylpyrrolidone from thickening effect.
Pore-creating agent both can use a kind of separately, also can use in the lump more than two kinds.
As solvent, as long as said film formation property resin and pore-creating agent can both be dissolved, do not limit especially, for example can use dimethyl sulfoxide (DMSO), N, N-dimethylacetylamide, dimethyl formamide.Wherein, see N preferably, N-dimethylacetylamide from making film form the viewpoint that the property resin more effectively is dissolved in the solvent.
Solvent can use a kind of separately, also can use in the lump more than two kinds.
In addition, for used system pleurodiaphragmatic in terspace liquid A, in the scope that does not hinder control to be separated, also can use any composition of other additive conduct except pore-creating agent here.
The viewpoint that stability during from raising system film, the easy multiple aperture plasma membrane that forms excellence are constructed sees that preferably more than the 10 quality %, 15 quality % are better above for the amount of the film formation property resin among the system pleurodiaphragmatic in terspace liquid A (100 quality %).In addition, see that preferably below the 30 quality %, 25 quality % are following better for the amount of film formation property resin from same reason.
See that from the viewpoint of easy formation porous matter hollow-fibre membrane M preferably more than the 1 quality %, 5 quality % are above better for the amount of the pore-creating agent among the system pleurodiaphragmatic in terspace liquid A (100 quality %).In addition, see that the amount of pore-creating agent is preferably below the 20 quality %, and is better below the 12 quality % from the viewpoint of the operability of system pleurodiaphragmatic in terspace liquid A.
Operation is solidified in spinning:
To make pleurodiaphragmatic in terspace liquid A and be supplied in spinning jet pipe 16 from reservoir 12 continuously; And will strengthen supporting mass B and be supplied in spinning jet pipe 16 from supporting mass resettlement section 14 continuously; Utilize spinning jet pipe 16 to make system pleurodiaphragmatic in terspace liquid A be ejected into the outside of strengthening supporting mass B cylindricly; System pleurodiaphragmatic in terspace liquid A is carried out spinning to be coated on the form of strengthening the supporting mass B outside, in solidifying unit 20, system pleurodiaphragmatic in terspace liquid A is solidified in solidification liquid 20a and form porous matter doughnut film precursor M '.
System pleurodiaphragmatic in terspace liquid A is immersed among the solidification liquid 20a, and thus, solidification liquid 20a spreads in system pleurodiaphragmatic in terspace liquid A, and film forms property resin and pore-creating agent and produces respectively and be separated and solidify, and forms the rete that solidifies of ternary mesh structure that film formation property resin and pore-creating agent get into each other.In this stage, pore-creating agent is considered to gel state in three dimensions and film formation property Resin Wound.Through after the removal operation stated remove the said pore-creating agent that solidifies rete, thereby have the part of this pore-creating agent to form the hole remaining, form the multiple aperture plasma membrane layer.
The temperature of solidification liquid 20a is 60～90 ° of C preferably.
This example is between spinning jet pipe 16 and solidification liquid 20a, to be provided with the form that sky is walked interval dry-and wet-type spinning, but is not limited to this form, also can sky be set and walk the interval, will make the wet type spinning of pleurodiaphragmatic in terspace liquid A direct fabrics in the solidification liquid 20a and adopt.
The manufacturing approach of the porous matter hollow-fibre membrane of the utility model is characterized in, the Tension Control of the reinforcement supporting mass B that is supplied in spinning jet pipe 16 is become 20～90g/ ingot.Through utilizing the tension force ACTIVE CONTROL of reinforcement supporting mass B that Tension Control unit 18 will be supplied in spinning jet pipe 16 in said scope, come off or the external diameter of strengthening supporting mass B too diminishes or strengthens the phenomenon that supporting mass B is damaged into by pressure flat from guiding parts 30 thereby can suppress to strengthen supporting mass B.
Strengthen supporting mass B from easy inhibition and see from the viewpoint that guiding parts 30 comes off, the tension force of reinforcement supporting mass B that is supplied in spinning jet pipe 16 is preferably more than the 50g/ ingot.In addition, the external diameter of strengthening supporting mass B from easy inhibition too diminishes or strengthens the viewpoint that supporting mass B damaged into by pressure flat and see, the tension force of reinforcement supporting mass B that is supplied in spinning jet pipe 16 is preferably below the 70g/ ingot.
Come off from preventing easily to lead and prevent that easily the viewpoint of the breakage of hollow bulb from seeing that the tension force that is supplied in the reinforcement supporting mass B of spinning jet pipe 16 is preferably controlled by niproll.
In addition, in the manufacturing approach of the utility model, the external diameter of supporting mass B measure to be strengthened in the front that is preferably in spinning jet pipe 16, feeds back this mensurations result and controls the tension force of reinforcement supporting mass B.The external diameter that thus, can suppress to strengthen supporting mass B more easily too diminishes or strengthens the phenomenon that supporting mass B is damaged into by pressure flat.
As measuring the method for strengthening supporting mass B external diameter, for example can enumerate online measuring outside diameter device etc.
Matting:
Remaining among the porous matter doughnut film precursor M ' that operation forms pore-creating agent and solvent arranged by solidifying, in this stage sufficient water penetration of can not volatilizing.In addition, when pore-creating agent is done admittedly, also become the reason of the mechanical strength decline of film in film.On the other hand; After in the removal operation stated, when using oxidant that pore-creating agent is carried out oxidation Decomposition (low-molecular-weightization), if remaining in porous matter doughnut film precursor M ' have a solvent; Then solvent and oxidant produce reaction, hinder the oxidation Decomposition of pore-creating agent.Therefore; In this example; After solidifying operation, the solvent that in matting, will remain among the porous matter doughnut film precursor M ' is removed, and the pore-creating agent that in removing operation, will remain among the porous matter doughnut film precursor M ' is then removed.
In matting, through cleaning unit 22 usefulness cleaning fluid 22b porous matter doughnut film precursor M ' is cleaned, the solvent that will remain in thus among the porous matter doughnut film precursor M ' is removed.Solvent among the porous matter doughnut film precursor M ' moves to the film surface from the film diffusion inside, and moves from the film surface to cleaning fluid 22b diffusion, from porous matter doughnut film precursor M ', is removed.
As cleaning fluid 22b, see preferably water from the high viewpoint of cleaning performance.As employed water, if any running water, water for industrial use, river and well water etc.In addition, also can in the middle of them, mixed ethanol, inorganic salts, oxidant and surfactant etc. use.In addition, as cleaning fluid 22b, also can use the solvent that system pleurodiaphragmatic in terspace liquid contained and the mixed liquor of water.But when using this mixed liquor, the concentration of solvent is preferably below the 10 quality %.
The viewpoint that remains in the diffusion translational speed of the solvent the porous matter doughnut film precursor M ' from raising sees, preferably 50 ° more than the C of the temperature of cleaning fluid 22b, and 80 ° of C are above better.
In addition, though in matting, mainly remove the solvent among the porous matter doughnut film precursor M ', through porous matter doughnut film precursor M ' is cleaned, pore-creating agent is also removed by part.
In addition, in matting, preferably utilize Tension Control unit 22a that the Tension Control of the porous matter doughnut film precursor M ' that advances is become 200～800g/ ingot.Through with the tension force ACTIVE CONTROL of porous matter doughnut film precursor M ' in said scope and clean, just suppress porous matter doughnut film precursor M ' easily from guiding parts 30 comes off or the hollow bulb of porous matter doughnut film precursor M ' is damaged by pressure phenomenon.
See from the viewpoint that guiding parts 30 comes off that from easy inhibition porous matter doughnut film precursor M ' tension force of the porous matter doughnut film precursor M ' in the matting is that the 400g/ ingot is above better.In addition, see that the tension force of the porous matter doughnut film precursor M ' in the matting is better below the 500g/ ingot from the viewpoint that the hollow bulb of easy inhibition porous matter doughnut film precursor M ' is damaged by pressure.
Remove operation:
In removing operation, the pore-creating agent that utilizes removal unit 24 will remain among the porous matter doughnut film precursor M ' is removed, and forms porous matter hollow-fibre membrane M.
As removing operation; The operation that for example can be listed below: M ' is immersed in the soup that contains oxidant with porous matter doughnut film precursor; After making porous matter doughnut film precursor M ' keep soup; Porous matter doughnut film precursor M ' is heated in gas phase and pore-creating agent is carried out oxidation Decomposition, then porous matter doughnut film precursor M ' is cleaned, remove the pore-creating agent after the low-molecular-weightization.
As oxidant, can enumerate hypochlorite, ozone, hydrogen peroxide solution, permanganate, bichromate and persulfate etc.Wherein, aspects such as decomposability superiority, operation superiority and cheapness property are seen from oxidizing force is strong, preferably hypochlorite.As hypochlorite, can enumerate that hypochlorous acid is received, calcium hypochlorite etc., preferably hypochlorous acid is received.
The pore-creating agent that remains in porous matter doughnut film precursor M ' from easy inhibition soup, carry out oxidation Decomposition, easily suppress to come off in soup the further oxidation Decomposition of pore-creating agent and the viewpoint of wasting oxidant is seen; Preferably 50 ° below the C of the temperature of soup, better below 30 ° of C.In addition, the viewpoint that soup is controlled to the cost etc. of low temperature is seen from suppressing to be used for, preferably 0 ° more than the C of the temperature of soup, 10 ° of C are above better.
Maintain the heating of the porous matter doughnut film precursor M ' of soup, under atmospheric pressure preferably use to add hot fluid.
As adding hot fluid, see from the drying that suppresses oxidant, the viewpoint that can carry out more effective resolution process, preferably use the high fluid of relative humidity, promptly be preferably under the wet heat condition and heat.In this case, preferably more than 80%, better more than 90%, about 100% is good especially for the relative humidity that adds hot fluid.
The viewpoint that shortens the processing time when handling continuously sees, preferably 50 ° more than the C of heating-up temperatures, and 80 ° of C are above better.In addition, under atmospheric pressure state, preferably 100 ° below the C of heating-up temperatures.
As the method that the pore-creating agent after the low-molecular-weightization is removed, the method for preferably porous matter doughnut film precursor M ' being cleaned.Do not limit especially as cleaning method, can adopt cleaning method cited in the aforementioned matting.
Drying process:
Utilize 26 pairs of porous matter of drying unit hollow-fibre membrane M to carry out drying.
As the drying means of porous matter hollow-fibre membrane M, can use the normally used method of drying of porous matter hollow-fibre membrane, for example can enumerate and utilize hot blast that porous matter hollow-fibre membrane M is carried out dry heated-air drying method etc.Specifically, for example can enumerate such method: porous matter hollow-fibre membrane M is back and forth advanced repeatedly in the device that can make hot blast with the circulation of the wind speed about per second number meter continuously, and M gives drying from outer circumferential side with porous matter hollow-fibre membrane.
The coiling operation:
Utilize winder unit 28, dried porous matter hollow-fibre membrane M is reeled.
Manufacturing approach and manufacturing installation for the porous matter hollow-fibre membrane of the utility model of above explanation; The tension force ACTIVE CONTROL of the reinforcement supporting mass through will being supplied in the spinning jet pipe comes off or the external diameter of strengthening supporting mass too dwindles or strengthens the phenomenon that supporting mass is damaged into by pressure flat from guiding parts thereby can suppress to strengthen supporting mass in the scope of regulation.Therefore, can make high-quality porous matter hollow-fibre membrane in steady and continuous ground.
In addition, the manufacturing installation of the porous matter hollow-fibre membrane of the utility model is not limited to aforementioned manufacturing installation 1.For example, but do not have the device of stoste modulating unit yet.In addition, but do not have the device with cleaning unit of the Tension Control unit that the tension force of porous matter hollow-fibre membrane is controlled yet.
In addition, the manufacturing approach of the porous matter hollow-fibre membrane of the utility model is not limited to use the method for aforementioned manufacturing installation 1.For example, but do not have the method for stoste modulating process yet.In addition, also can in matting, clean, and especially the tension force of the porous matter doughnut film precursor of advancing controlled without niproll etc.
[embodiment]
Below, utilize embodiment to specify the utility model, but the utility model can't help following description and is limited.
[embodiment 1]
Strengthen the manufacturing process of supporting mass:
Use supporting mass manufacturing installation 40 shown in Figure 2, made the reinforcement supporting mass that constitutes by the hollow form sennit.Supporting mass manufacturing installation 40 has: bobbin 41, the circular knitter 43 that the silk 42 of pulling out from bobbin 41 is carried out circular knit, the rope feedway 45 that the hollow form sennit of being weaved into by circular knitter 43 44 is stretched with certain tension force, the heated mould 46 that hollow form sennit 44 is heat-treated, the reinforcement supporting mass X that heat treatment hollow form sennit 44 is obtained carry out the pulling device 47 of tractive and will strengthen supporting mass X being wound on the up-coiler 48 on the bobbin.
As precursor, use polyester fiber (fiber number is 84dtex, and the single fiber dimension is 36).As bobbin 41, prepared the bobbin that five volumes have 5kg said polyester fiber.As circular knitter 43, used desk-top knitting machine (justify well fibre machinery corporate system, the knitting needle number is 12, and pin is of a size of 116 and spaces, and the circle diameter of spindle is 8mm).As rope feedway 45 and pulling device 47, used the Nelson roller.As heated mould 46, used the mould (inside diameter D (entrance side) is 5mm, and inner diameter d (outlet side) is 2.2mm, and length is 300mm) of stainless steel with heating unit.
The polyester fiber of pulling out from bobbin 41 accumulate a branch of and make the silk 42 (the total fiber number is 420dtex); Carry out circular knit and weave into hollow form sennit 44 by circular knitter 43 then; Make the heated mould 46 of said hollow form sennit 44, the hollow form sennit 44 after the heat treatment is wound on the coiler device 48 with the 100m/hr winding speed as strengthening supporting mass X through 195 ° of C.Making reinforcement supporting mass X continuously uses up until the polyester fiber of bobbin 41.
The external diameter of resulting reinforcement supporting mass X approximately is 2.1mm, and internal diameter is 1.3mm.Like Fig. 3 and shown in Figure 4; Constituting reinforcement supporting mass X hollow form sennit 44 is like this formation: helical form forms continuously and makes a ring 42a (the black part among Fig. 4) of 42 bendings; 42a connects up and down with these rings, and is as shown in Figure 4, in the ring 42a and the connecting portion of ring 42a between mutually have mesh 44a.The number of ring 42a is 12 on each circle, and the maximum open width L of mesh 44a approximately is 0.05mm.The length of strengthening supporting mass X is 12000m.
Resulting reinforcement supporting mass X is housed in the supporting mass resettlement section 14.
Use the illustrative manufacturing installation 1 of Fig. 1 and following such continuous porous matter hollow-fibre membrane of having made.
The stoste modulating process:
In stoste modulating unit 10; Will be as polyvinylidene fluoride (PVDF) (Arkema's system of film formation property resin (hydrophobic polymer); Commodity are called Ka Yina-301F) and as polyvinylpyrrolidone (PVP) (the Japanese catalyst corporate system of pore-creating agent (hydrophilic polymer); Commodity are called PVP-K79) put into N; Carry out mixed dissolution in the N-dimethylacetylamide (DMAc), having modulated by mass ratio thus is the first system pleurodiaphragmatic in terspace liquid that the DMAc of PVP and 70 quality % of PVD, the 10 quality % of 20 quality % constitutes.
In addition; With a PVDF (Arkema's system; Commodity are called Ka Yina-301F) and the 2nd PVDF (Arkema's system; Commodity are called Ka Yina-9000HD) to carry out mixed PVDF and PVP (Japanese catalyst corporate system, commodity are called PVP-K79) with mass ratio and puts into DMAc and carry out mixed dissolution at 1: 1, and having modulated by mass ratio thus is the second system pleurodiaphragmatic in terspace liquid that the DMAc of PVP and 42 quality % of PVDF, the 19 quality % of 39 quality % constitutes.
The said first system pleurodiaphragmatic in terspace liquid and the second system pleurodiaphragmatic in terspace liquid are sent to reservoir 12 and store.
Operation is solidified in spinning:
Supply with the first system pleurodiaphragmatic in terspace liquid and the second system pleurodiaphragmatic in terspace liquid from reservoir 12 continuously to the spinning jet pipe that is incubated into 30 ° of C 16; Supply with reinforcement supporting mass X continuously from supporting mass resettlement section 14 to the spinning jet pipe that is incubated into 30 ° of C 16; At the outer peripheral face coating of the strengthening supporting mass X first system pleurodiaphragmatic in terspace liquid, again at its outside coating second system pleurodiaphragmatic in terspace liquid.The tension force that is supplied in the reinforcement supporting mass X of spinning jet pipe 16 from supporting mass resettlement section 14 is adjusted to the 60g/ ingot by Tension Control unit 18.As Tension Control unit 18, use niproll.
Then; The reinforcement supporting mass X that is coated with the first system pleurodiaphragmatic in terspace liquid and the second system pleurodiaphragmatic in terspace liquid is immersed in the DMAc aqueous solution (solidification liquid 20a) of 8 quality % that the insulation of solidifying unit 20 becomes 80 ° of C; System pleurodiaphragmatic in terspace liquid is solidified form porous matter doughnut film precursor M ', from solidification liquid 20a, it is mentioned then.
Matting, removal operation:
In cleaning unit 22, make porous matter doughnut film precursor M ' at rinse bath expert who contains hot water (about 90 ° of C) and then removal solvent.In addition, the tension force of the porous matter doughnut film precursor M ' in the cleaning is controlled to the 500g/ ingot by Tension Control unit 22a.As Tension Control unit 22a, use niproll.
Then; In removing unit 24; Making porous matter doughnut film precursor M ' is that 20 ° of C, concentration are that the dipper of the aqueous solution of hypochlorite of 5 quality % is expert and then keep soup with holdup time of 2 minutes putting into temperature; Then, be that 3 minutes condition heats porous matter doughnut film precursor M ' in temperature is the saturated steam of 100 ° of C with the holdup time.Then, through in the rinse bath that contains warm water (60 ° of C), cleaning, thereby the pore-creating agent after the low-molecular-weightization is removed, formed porous matter hollow-fibre membrane M.
Drying process, coiling operation:
As drying unit 26, used the structure that has like lower component: vapour seasoning portion, this vapour seasoning portion utilize the saturated steam after the heating that porous matter hollow-fibre membrane is heated; And heated-air drying portion, this heated-air drying portion utilizes hot blast to carrying out drying by this vapour seasoning portion dried porous matter hollow-fibre membrane.In the vapour seasoning portion of drying unit 26; Making porous matter hollow-fibre membrane M is that 30 seconds condition is advanced in the saturated steam of 100 ° of C with the holdup time; Making porous matter hollow-fibre membrane M again is that 300 seconds condition is advanced making in 120 ° of C of temperature, the wind speed 3m/ heated-air drying portion of hot blast in inner loop of second with the holdup time; Thus porous matter hollow-fibre membrane M is carried out drying, be wound on then on the winder unit 28.The moisture rate of porous matter hollow-fibre membrane M before dry is 60 quality %, and the moisture rate of the porous matter hollow-fibre membrane M after the vapour seasoning is 50 quality %, and the moisture rate of the porous matter hollow-fibre membrane M after the heated-air drying is 0.5 quality %.
Can suppress in the manufacture process to strengthen supporting mass B and come off or the external diameter of strengthening supporting mass B too diminishes or damages into the phenomenon of flat by pressure from guiding parts 30, and can the continuous enough good porous matter hollow-fibre membrane of workmanship.
Claims (2)
1. the manufacturing installation of a porous matter hollow-fibre membrane, the outside that this porous matter hollow-fibre membrane is strengthened supporting mass at hollow form has the multiple aperture plasma membrane layer, and the manufacturing installation of this porous matter hollow-fibre membrane is characterised in that to have:
Spinning jet pipe, this spinning jet pipe will contain system pleurodiaphragmatic in terspace liquid that film forms property resin and pore-creating agent and carry out spinning with the form in the outside that is coated on said reinforcement supporting mass;
Coagulation tank, this coagulation tank are solidified said system pleurodiaphragmatic in terspace liquid and are formed porous matter doughnut film precursor; And
Jockey pulley, this jockey pulley is controlled the tension force of the said reinforcement supporting mass that is supplied in said spinning jet pipe.
2. the manufacturing installation of porous matter hollow-fibre membrane as claimed in claim 1 is characterized in that,
Downstream in said coagulation tank is provided with rinse bath, and this rinse bath is removed said pore-creating agent from said porous matter doughnut film precursor, forms the porous matter hollow-fibre membrane with multiple aperture plasma membrane layer.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011129258A JP5903780B2 (en) | 2011-06-09 | 2011-06-09 | Method and apparatus for producing porous hollow fiber membrane |
| JP2011-129258 | 2011-06-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202590642U true CN202590642U (en) | 2012-12-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220218858 Expired - Lifetime CN202590642U (en) | 2011-06-09 | 2012-05-15 | Manufacturing device for porous hollow fiber membrane |
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| Country | Link |
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| JP (1) | JP5903780B2 (en) |
| CN (1) | CN202590642U (en) |
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| CN105126632A (en) * | 2015-09-06 | 2015-12-09 | 黄晔 | Gelation box for preparing ultramicro filter membrane and production method |
| CN105499199A (en) * | 2015-12-02 | 2016-04-20 | 北京碧水源膜科技有限公司 | On-line cleaning device and complete membrane filament gel forming equipment comprising same |
| CN108214644A (en) * | 2016-12-22 | 2018-06-29 | 加川清二 | The manufacturing device of micro- porous plastic film |
| CN108914589A (en) * | 2018-07-10 | 2018-11-30 | 长安大学 | A kind of functional response imitates the preparation method of bamboo structure fiber |
| CN110711497A (en) * | 2015-03-27 | 2020-01-21 | 帝人株式会社 | Drying device of composite membrane |
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| JP6048180B2 (en) * | 2013-02-01 | 2016-12-21 | 三菱レイヨン株式会社 | Porous membrane manufacturing method and manufacturing apparatus |
| CN103706258B (en) * | 2013-12-05 | 2016-03-02 | 云南城投碧水源水务科技有限责任公司 | The preparation method of the fiber reinforcement hollow-fibre membrane that a kind of dry method is preserved and production equipment thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62177251A (en) * | 1986-01-31 | 1987-08-04 | 帝人株式会社 | Interlaced bulky yarn |
| JP5078050B2 (en) * | 2003-03-31 | 2012-11-21 | 東レ株式会社 | Coating nozzle for hollow fiber membrane and method for producing composite hollow fiber membrane using the same |
| JP5207220B2 (en) * | 2006-11-07 | 2013-06-12 | 三菱レイヨン株式会社 | HOLLOW POROUS MEMBRANE SUPPORT, HOLLOW POROUS MEMBRANE AND METHOD FOR PRODUCING THEM |
| JP4975470B2 (en) * | 2007-02-09 | 2012-07-11 | 三菱レイヨン株式会社 | Hollow fiber membrane knitting device |
| TWI377978B (en) * | 2008-05-21 | 2012-12-01 | Mitsubishi Rayon Co | Hollow porous film and manufacturing method thereof |
-
2011
- 2011-06-09 JP JP2011129258A patent/JP5903780B2/en active Active
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- 2012-05-15 CN CN 201220218858 patent/CN202590642U/en not_active Expired - Lifetime
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110711497A (en) * | 2015-03-27 | 2020-01-21 | 帝人株式会社 | Drying device of composite membrane |
| CN105126632A (en) * | 2015-09-06 | 2015-12-09 | 黄晔 | Gelation box for preparing ultramicro filter membrane and production method |
| CN105499199A (en) * | 2015-12-02 | 2016-04-20 | 北京碧水源膜科技有限公司 | On-line cleaning device and complete membrane filament gel forming equipment comprising same |
| CN105499199B (en) * | 2015-12-02 | 2017-09-29 | 北京碧水源膜科技有限公司 | A kind of on-line cleaning device and the film silk gel sizing complete set of equipments comprising the device |
| CN108214644A (en) * | 2016-12-22 | 2018-06-29 | 加川清二 | The manufacturing device of micro- porous plastic film |
| CN108914589A (en) * | 2018-07-10 | 2018-11-30 | 长安大学 | A kind of functional response imitates the preparation method of bamboo structure fiber |
| CN108914589B (en) * | 2018-07-10 | 2020-09-29 | 长安大学 | Preparation method of functional responsive bamboo-like structural fiber |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5903780B2 (en) | 2016-04-13 |
| JP2012254411A (en) | 2012-12-27 |
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