CN203187803U - Spinning nozzle for manufacturing hollow fiber film with strengthening ribs - Google Patents
Spinning nozzle for manufacturing hollow fiber film with strengthening ribs Download PDFInfo
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- CN203187803U CN203187803U CN 201320101120 CN201320101120U CN203187803U CN 203187803 U CN203187803 U CN 203187803U CN 201320101120 CN201320101120 CN 201320101120 CN 201320101120 U CN201320101120 U CN 201320101120U CN 203187803 U CN203187803 U CN 203187803U
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- spinning head
- casting solution
- counterdie
- patrix
- spinning nozzle
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Abstract
The utility model relates to a spinning nozzle for manufacturing a hollow fiber film with strengthening ribs. The spinning nozzle comprises a spinning nozzle upper die, a spinning nozzle lower die, a spinning base plate and a driving motor. The spinning nozzle upper die is fixed on equipment, the spinning base plate and the bottom end of the spinning nozzle upper die are fixed, and a groove with the semi-circle cross section is formed in the inner wall of a film casting liquid channel of the spinning nozzle lower die in the axial direction. The driving motor is fixed on a motor base, the motor base is fixed on one side of the spinning nozzle upper die, a motor shaft of the driving motor is provided with a motor shaft output gear, and the motor shaft output gear is mutually meshed with a fluted disc on the spinning nozzle lower die to drive the spinning nozzle lower die to rotate. The strengthening ribs can be formed on the outer film wall of the hollow fiber film formed under the effect of internal and external gel liquid, the number of the strengthening ribs can be controlled according to the number of the semi-circle grooves, and the screw pitch of the strengthening ribs also can be controlled by the rotation speed of the motor. The spinning nozzle can obviously improve mechanical strength of the hollow fiber film.
Description
Technical field
The utility model relates to a kind of doughnut membrane preparation method, is specifically related to a kind of hollow-fibre membrane spinning head with spiral reinforcing rod.
Background technology
Film distillation technology (MD) is a kind of employing dewatering microporous film, is the film separation process of driving force with the steam pressure difference of film both sides.The MD technology with its separation and purification efficient height, free from environmental pollution, be convenient to and the coupling of other decontamination process and characteristics such as integrated, in high salinity, the industrial wastewater of high density pollution thing, and the recycling aspect of high value metals, organic component shows great application prospect.
At present, the scientific research personnel has carried out detailed deep research in the film distillation with the preparation of film, the optimal design of membrane module, the mechanism of mass-and heat-transfer and the aspects such as foundation of Mathematical Modeling, has obtained bigger progress.But the MD technology is not really applied at present, and main cause is: 1) lack business-like high flux, high strength and hydrophobic membrane; 2) membrane module amplifies the back because the existence of assembly channel effect causes membrane flux to descend obviously, and the optimal design of assembly is to be strengthened.3) existence of concentration process film dirt, inevitable film wetting phenomena, hydrophobic membrane adhesion and the cleaning of online film thereof and film properties reparation cause the long-term stability operation of MD process to become a problem that needs to be resolved hurrily.In the factor that three kinds influence the MD technological progress, MD is crucial with the exploitation of film, and the three is interrelated.
Similar with other membrane process, structural parameters such as the wall thickness of film have significant effects to the MD mass transport process.For reducing hydrophobicity and the mechanical strength of membrane mass transfer resistance, raising film, the researcher is the selection by formula of casting, spinning technology parameter mainly, sets about carrying out the optimization of film from aspects such as the control of pore-size distribution, voidage, wall thickness/cortex, single skin structure regulatings.But the thick reduction of membranous wall is not directly proportional with the flux raising.On the one hand, the wall thickness reduction can reduce the resistance to mass tranfer of film, thereby improves flux, but then, the thick reduction of membranous wall, heat conduction aggravation causes high thermal losses to stride the film temperature difference with low, and then causes membrane flux to descend.In addition, thick for obtaining the unilateral reduction membranous wall of high flux, very easily cause film yield rate and film silk mechanical strength to descend, and in actual moving process, easily cause flat silk, fracture of wire phenomenon, have a strong impact on film service life.For hydrophobicity and the film-strength that improves film, ways and meanses such as the blend of some researchers by gel process control, inorganic/polymer beads (CaCO3, TiO2, PTFE etc.), film functional modification are realized.
Be to improve the mass-transfer efficiency of film, focus on how promoting near the generation of the turbulent flow face at present for the optimal design of film distillation assembly, reduce polarization phenomena.Such deisgn approach, the exploitation direction of having guided the design of film group develops toward curved face type, structure spiral or wound form, more researcher adopts and changes fluidised form at swift current members such as the built-in deflection plate of assembly runner, spiral organ, graticule mesh, improves the film surface velocity, produces eddy current.The design overall of swift current member has caused many complex fluid mechanics problems.In the large assemblies design, should not adopt, and because the introducing of member causes crushing to become big, the mechanical energy loss is risen.
This shows that the film distillation should break through tradition film thinking processed with the preparation of film, comprehensive consideration filming technology and film distillation assembly optimal design.Should improve the doughnut film strength, improve film silk and assembly flux again, the hollow-fibre membrane that spins should possess high strength, high flux, antifouling property, will be fit to cleaning, the drying steps of film still-process uniqueness simultaneously.
Summary of the invention
Technical problem to be solved in the utility model provides preparation method and the employed rotation spinning head of the hollow-fibre membrane of band spiral reinforcing rod, overcome in the existing film development technology for improving membrane flux, by reducing the thickness of membranous wall, thereby the problem that causes film silk mechanical strength to descend, and thin-walled film silk easily causes flat silk, fracture of wire phenomenon in actual moving process, has a strong impact on the film defective in service life.
The technical scheme that the utility model solves the problems of the technologies described above is as follows: a kind of preparation band reinforcement hollow-fibre membrane spinning head, described spinning head comprise spinning head patrix, spinning head counterdie, spray silk base plate and drive motors,
Described spinning head patrix is fixed on the equipment, and described spinning head patrix is provided with core liquid pipeline and patrix casting solution passage, and described core liquid pipeline one end is core liquid interface, and the other end is communicated with the core pin, is inner gel liquid passage in the core pin; Described patrix casting solution passage one end is communicated with the casting solution degassing tank;
Described spinning head counterdie is provided with counterdie casting solution feeder connection, counterdie casting solution passage and counterdie casting solution channel outlet, and described counterdie casting solution feeder connection is communicated with the described patrix casting solution passage other end; Described core pin is positioned at described counterdie casting solution passage and concentric, and described core pin lower end is the outlet of inner gel liquid, and described inner gel liquid outlet is concordant with described counterdie casting solution channel outlet;
Described spray silk base plate and described spinning head patrix bottom are fixed, described spray silk base plate is provided with through hole, described lead to the hole site and described core pin and described counterdie casting solution passage concentric, its lower end are the casting solution outlet, and described inner gel liquid and casting solution are simultaneously by described through hole; It is semicircular groove that the inwall of described spinning head counterdie casting solution passage in axial direction is provided with the cross section; Described drive motors is fixed on the motor cabinet, described motor cabinet is fixed on described spinning head patrix one side, the motor shaft of described drive motors is provided with the motor shaft output gear, and the fluted disc on described motor shaft output gear and the described spinning head counterdie is meshing with each other, and drives described spinning head counterdie rotation.
The beneficial effects of the utility model are: constitute lower mould assembly at counterdie and spray silk base plate with described spinning head, the spinnerets counterdie drives rotation by motor output shaft, and the sealing between spinning head patrix, spinning head counterdie and the spray silk base plate is regulated by uniform elasticity screw on the spray silk base plate.When the inner gel liquid in the core pin and casting solution simultaneously during the spinning head counterdie by rotation, because it is semicircular groove that spinning head counterdie casting solution vias inner walls in axial direction is provided with the cross section, on the film outer wall of the hollow-fibre membrane that forms under the effect of inside and outside coagulant liquid, can form spiral bodily form reinforcement, and the pitch of reinforcement can be by the speed control of motor rotation, and spiral reinforcing rod can improve the mechanical strength of hollow-fibre membrane.
Further, the cross section of described counterdie casting solution feeder connection is V-shape.
Further, the cross section of described spinning head patrix is inverted L shape, and an end of described spray silk base plate and spinning head patrix L type is fixed by the elasticity screw; Fastening by the elasticity screw between described spray silk base plate and the spinning head counterdie, be used for regulating the assurance end face seal.
The utility model preparation have spinning head that spirochetal hollow-fibre membrane uses and traditional linear pattern hollow-fibre membrane has following advantage with spinning head:
(1) utilizes special-shaped rotary nozzle design, make hollow-fibre membrane in film forming procedure, form the spirality reinforcement, increase the resistance to compression of film silk, tensile strength.Adopt the enhancing effect of the reinforcement of physical method formation obviously to be better than methods such as other chemical modification, also overcome the film and the easy shortcoming that breaks away from of fiber that adopt the fortifying fibre method simultaneously.
(2) the helical form reinforcement that utilizes rotatable spinning head to form in actual moving process, has changed the face fluid flow state, has increased face fluid turbulent degree, is beneficial to the raising of the mass-and heat-transfer efficient of face.The helical form hollow membrane can overcome the channel effect of traditional components, prevents from increasing in runner because of traditional components film silk filling complex procedures that swift current members such as graticule mesh, hydrodynamic form cause and the shortcoming of film silk easy damaged.
(3) design of helical form hollow membrane silk makes film surfaces externally and internally fluid produce vortex, forms secondary stream, effectively reduces face temperature and concentration polarization phenomenon, reduces film and pollutes.
(4) existence of hollow-fibre membrane spiral reinforcing rod is conducive to overcome the adhesion of film in the film silk cleaning-drying process, is beneficial to the long-period stable operation of film, is beneficial to rapid draing, improves the service life of film.
Description of drawings
Fig. 1 is a kind of spinning head vertical view of using on the equipment of the hollow-fibre membrane of being with reinforcement for preparing;
Fig. 2 is Figure 1A-A direction structure schematic diagram;
Fig. 3 is a kind of first kind of spray silk base plate embodiment schematic diagram in the spinning head of using on the equipment of the hollow-fibre membrane of being with reinforcement that prepare;
Fig. 4 is a kind of second kind of spray silk base plate embodiment schematic diagram in the spinning head of using on the equipment of the hollow-fibre membrane of being with reinforcement that prepare;
Fig. 5 adopts first kind of hollow fiber film structure schematic diagram that sprays the preparation of silk base plate for a kind of doughnut membrane preparation method of being with reinforcement for preparing;
Fig. 6 adopts second kind of hollow fiber film structure schematic diagram that sprays the preparation of silk base plate for a kind of doughnut membrane preparation method of being with reinforcement for preparing.
In the accompanying drawing, the list of parts of each label representative is as follows:
5, spinning head, 5-1, motor output gear, 5-2, core liquid pipe connection, 5-3, spinning head patrix, 5-4, core pin, 5-5, motor cabinet, 5-6, motor, 5-7, spray silk base plate, 5-8, through hole, 5-9, spinning head counterdie, 5-10, counterdie casting solution feeder connection, 5-11, counterdie casting solution passage, 5-12, core liquid pipeline, 5-13, cross section are semicircular groove, 5-14, elasticity screw, 5-15, elasticity screw.
The specific embodiment
Below in conjunction with accompanying drawing principle of the present utility model and feature are described, institute gives an actual example and only is used for explaining the utility model, is not for limiting scope of the present utility model.
A kind of spinning head of using on the equipment of the hollow-fibre membrane of being with reinforcement 5 for preparing of the present invention as shown in Figures 1 to 4, a kind of spinning head of using on the equipment of the hollow-fibre membrane of being with the conveyor screw reinforcement for preparing, described spinning head comprises spinning head patrix 5-3, spinning head counterdie 5-9, spray silk base plate 5-7 and drive motors 5-6
Described spinning head patrix 5-3 is fixed on the equipment, and described spinning head patrix 5-3 is provided with core liquid pipeline 5-12 and patrix casting solution passage, and described core liquid pipeline 5-12 one end is core liquid interface, and the other end is communicated with core pin 5-4, is inner gel liquid in the core pin 5-4; Described patrix casting solution passage one end is communicated with casting solution degassing tank 2; Described core liquid pipeline 5-12 other end connection-core liquid pipe connection 5-2.
Described spinning head counterdie 5-9 is provided with counterdie casting solution feeder connection, counterdie casting solution passage 5-11 and counterdie casting solution channel outlet, and described counterdie casting solution feeder connection is communicated with the described patrix casting solution passage 5-11 other end; Described core pin 5-4 is positioned at described counterdie casting solution passage 5-11 and concentric, and described core pin 5-4 lower end is inner coagulant liquid outlet, and described inner coagulant liquid outlet is concordant with described counterdie casting solution passage 5-11 outlet; The upper end of its central core needle 5-4 is communicated with described core liquid pipeline 5-12.
Described spray silk base plate 5-7 is fixed on described spinning head patrix 5-3 bottom, described spray silk base plate 5-7 is provided with through hole 5-8, described through hole 5-8 position and described core pin 5-4 and described counterdie casting solution passage 5-11 concentric, its lower end is the casting solution outlet, and described inner gel liquid and casting solution are simultaneously by described through hole 5-8; In axial direction being provided with the cross section on the described spinning head counterdie casting solution passage 5-11 inwall is semicircular groove 5-13; Described drive motors 5-6 is fixed on the motor cabinet 5-5, described motor cabinet 5-5 is fixed on described spinning head patrix 5-3 one side, the motor shaft of described drive motors 5-6 is provided with the motor shaft output gear, on the described spinning head counterdie 5-9 fluted disc is installed, fluted disc on described motor shaft output gear and the described spinning head counterdie is meshing with each other, and drives described spinning head counterdie rotation.
The schematic cross-section of spinning head counterdie casting solution passage as shown in Figure 3, Figure 4, in axial direction cross section is that semicircular groove is 2 or 3 on the described spinning head counterdie casting solution vias inner walls.
The further technical scheme of the present invention is, above-mentioned a kind of to prepare the spinning head basic structure of using on the equipment of the hollow-fibre membrane of being with reinforcement identical, and further improvements are that the cross section of described counterdie casting solution feeder connection is V-shape.
The further technical scheme of the present invention is, it is above-mentioned that a kind of to prepare the spinning head basic structure of using on the equipment of the hollow-fibre membrane of being with reinforcement identical, further improvements are that described semi-circular recesses is 2-5, are evenly distributed on the described spinning head counterdie casting solution vias inner walls.
The cross section of described spinning head patrix is inverted L shape, and an end of described spray silk base plate and spinning head patrix L type is fixed by elasticity screw 5-14; Fastening by elasticity screw 5-15 between described spray silk base plate and the spinning head counterdie, be used for regulating the assurance end face seal.
The hollow-fibre membrane silk of the band reinforcement of the utility model spinning head preparation as shown in Figure 5 and Figure 6.
The above only is preferred embodiment of the present utility model, and is in order to limit the utility model, not all within spirit of the present utility model and principle, any modification of doing, is equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (3)
1. one kind prepares band reinforcement hollow-fibre membrane spinning head, it is characterized in that described spinning head comprises spinning head patrix, spinning head counterdie, spray silk base plate and drive motors,
Described spinning head patrix is fixed on the equipment, and described spinning head patrix is provided with core liquid pipeline and patrix casting solution passage, and described core liquid pipeline one end is core liquid interface, and the other end is communicated with the core pin, is inner gel liquid passage in the core pin; Described patrix casting solution passage one end is communicated with the casting solution degassing tank;
Described spinning head counterdie is provided with counterdie casting solution feeder connection, counterdie casting solution passage and counterdie casting solution channel outlet, and described counterdie casting solution feeder connection is communicated with the described patrix casting solution passage other end; Described core pin is positioned at described counterdie casting solution passage and concentric, and described core pin lower end is the outlet of inner gel liquid, and described inner gel liquid outlet is concordant with described counterdie casting solution channel outlet;
Described spray silk base plate and described spinning head patrix bottom are fixed, described spray silk base plate is provided with through hole, described lead to the hole site and described core pin and described counterdie casting solution passage concentric, its lower end are the casting solution outlet, and described inner gel liquid and casting solution are simultaneously by described through hole; It is semicircular groove that the inwall of described spinning head counterdie casting solution passage in axial direction is provided with the cross section; Described drive motors is fixed on the motor cabinet, described motor cabinet is fixed on described spinning head patrix one side, the motor shaft of described drive motors is provided with the motor shaft output gear, and the fluted disc on described motor shaft output gear and the described spinning head counterdie is meshing with each other, and drives described spinning head counterdie rotation.
2. according to the described a kind of preparation band reinforcement hollow-fibre membrane spinning head of claim 1, it is characterized in that the cross section of described counterdie casting solution feeder connection is V-shape.
3. according to the described a kind of preparation band reinforcement hollow-fibre membrane spinning head of claim 1, it is characterized in that the cross section of described spinning head patrix is inverted L shape, an end of described spray silk base plate and spinning head patrix L type is fixed by the elasticity screw; Fastening by the elasticity screw between described spray silk base plate and the spinning head counterdie, be used for regulating the assurance end face seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320101120 CN203187803U (en) | 2013-03-05 | 2013-03-05 | Spinning nozzle for manufacturing hollow fiber film with strengthening ribs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320101120 CN203187803U (en) | 2013-03-05 | 2013-03-05 | Spinning nozzle for manufacturing hollow fiber film with strengthening ribs |
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| Publication Number | Publication Date |
|---|---|
| CN203187803U true CN203187803U (en) | 2013-09-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320101120 Expired - Lifetime CN203187803U (en) | 2013-03-05 | 2013-03-05 | Spinning nozzle for manufacturing hollow fiber film with strengthening ribs |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103143266A (en) * | 2013-03-05 | 2013-06-12 | 中国科学院生态环境研究中心 | Preparation method of hollow fiber membrane with spiral reinforcing ribs and spinning nozzle |
| CN103541029A (en) * | 2013-10-18 | 2014-01-29 | 北京碧水源膜科技有限公司 | Novel spinneret plate for producing long-fiber enhanced hollow fiber membrane |
| CN103710766A (en) * | 2013-12-12 | 2014-04-09 | 北京化工大学 | Hollow fiber spray nozzle allowing adjusting hollow core tube |
| CN108034999A (en) * | 2018-01-19 | 2018-05-15 | 山东招金膜天股份有限公司 | A kind of spinneret for producing long fiber reinforced type hollow-fibre membrane |
| CN111727278A (en) * | 2018-01-31 | 2020-09-29 | 沙特阿拉伯石油公司 | Production of fibers using spinnerets |
-
2013
- 2013-03-05 CN CN 201320101120 patent/CN203187803U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103143266A (en) * | 2013-03-05 | 2013-06-12 | 中国科学院生态环境研究中心 | Preparation method of hollow fiber membrane with spiral reinforcing ribs and spinning nozzle |
| CN103541029A (en) * | 2013-10-18 | 2014-01-29 | 北京碧水源膜科技有限公司 | Novel spinneret plate for producing long-fiber enhanced hollow fiber membrane |
| CN103541029B (en) * | 2013-10-18 | 2015-12-23 | 北京碧水源膜科技有限公司 | The spinnerets of novel production long fiber reinforcement type hollow-fibre membrane |
| CN103710766A (en) * | 2013-12-12 | 2014-04-09 | 北京化工大学 | Hollow fiber spray nozzle allowing adjusting hollow core tube |
| CN108034999A (en) * | 2018-01-19 | 2018-05-15 | 山东招金膜天股份有限公司 | A kind of spinneret for producing long fiber reinforced type hollow-fibre membrane |
| CN108034999B (en) * | 2018-01-19 | 2023-09-01 | 山东招金膜天股份有限公司 | Spinneret plate for producing long fiber reinforced hollow fiber membrane |
| CN111727278A (en) * | 2018-01-31 | 2020-09-29 | 沙特阿拉伯石油公司 | Production of fibers using spinnerets |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130911 |