CN114887496A - Continuous sheet-shaped hollow fiber membrane production line and process method - Google Patents
Continuous sheet-shaped hollow fiber membrane production line and process method Download PDFInfo
- Publication number
- CN114887496A CN114887496A CN202210481720.9A CN202210481720A CN114887496A CN 114887496 A CN114887496 A CN 114887496A CN 202210481720 A CN202210481720 A CN 202210481720A CN 114887496 A CN114887496 A CN 114887496A
- Authority
- CN
- China
- Prior art keywords
- hollow fiber
- rope
- fiber membrane
- wire winding
- assembly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000012528 membrane Substances 0.000 title claims abstract description 92
- 239000012510 hollow fiber Substances 0.000 title claims abstract description 82
- 238000000034 method Methods 0.000 title claims abstract description 39
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 34
- 230000008569 process Effects 0.000 title claims abstract description 25
- 239000007788 liquid Substances 0.000 claims abstract description 27
- 238000005266 casting Methods 0.000 claims abstract description 21
- 238000003756 stirring Methods 0.000 claims abstract description 14
- 239000002904 solvent Substances 0.000 claims abstract description 11
- 230000003068 static effect Effects 0.000 claims abstract description 11
- 238000001914 filtration Methods 0.000 claims abstract description 9
- 239000000654 additive Substances 0.000 claims abstract description 8
- 238000007493 shaping process Methods 0.000 claims abstract description 8
- 238000010924 continuous production Methods 0.000 claims abstract description 7
- 230000000996 additive effect Effects 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims abstract description 5
- 239000011347 resin Substances 0.000 claims abstract description 5
- 229920005989 resin Polymers 0.000 claims abstract description 5
- 238000010438 heat treatment Methods 0.000 claims abstract description 4
- 239000010887 waste solvent Substances 0.000 claims abstract description 3
- 238000004804 winding Methods 0.000 claims description 51
- 238000002791 soaking Methods 0.000 claims description 33
- 230000005540 biological transmission Effects 0.000 claims description 25
- 238000006243 chemical reaction Methods 0.000 claims description 25
- 230000007246 mechanism Effects 0.000 claims description 21
- 239000002994 raw material Substances 0.000 claims description 16
- 238000003860 storage Methods 0.000 claims description 14
- 238000011282 treatment Methods 0.000 claims description 12
- 238000005520 cutting process Methods 0.000 claims description 11
- 230000015271 coagulation Effects 0.000 claims description 8
- 238000005345 coagulation Methods 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 230000001112 coagulating effect Effects 0.000 claims description 6
- 238000009730 filament winding Methods 0.000 claims description 5
- 238000009987 spinning Methods 0.000 claims description 3
- 238000001879 gelation Methods 0.000 claims description 2
- 239000003292 glue Substances 0.000 claims description 2
- 238000007654 immersion Methods 0.000 claims 2
- 239000000203 mixture Substances 0.000 claims 1
- 238000001035 drying Methods 0.000 abstract description 5
- 238000004090 dissolution Methods 0.000 abstract 1
- 101100165177 Caenorhabditis elegans bath-15 gene Proteins 0.000 description 7
- 239000002351 wastewater Substances 0.000 description 7
- 238000004140 cleaning Methods 0.000 description 4
- 230000006872 improvement Effects 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000011343 solid material Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004831 Hot glue Substances 0.000 description 1
- 239000002033 PVDF binder Substances 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 229920006332 epoxy adhesive Polymers 0.000 description 1
- 239000011344 liquid material Substances 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
- B01D69/08—Hollow fibre membranes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
- B01D65/02—Membrane cleaning or sterilisation ; Membrane regeneration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
- B01D67/0002—Organic membrane manufacture
- B01D67/0009—Organic membrane manufacture by phase separation, sol-gel transition, evaporation or solvent quenching
- B01D67/0013—Casting processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
- B01D69/08—Hollow fibre membranes
- B01D69/085—Details relating to the spinneret
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
- B01D69/08—Hollow fibre membranes
- B01D69/087—Details relating to the spinning process
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
A continuous production line and a process method for flaky hollow fiber membranes belong to the technical field of hollow fiber membrane manufacturing equipment. Heating and stirring a solvent, a resin and an additive to form a uniform membrane casting solution, shaping the membrane casting solution into a hollow shape by metering equipment and a spinneret plate, then forming a filtering channel by crossing the solvent and a waste solvent, collecting and post-treating to finally form the hollow fiber membrane filament, and the method comprises the steps of material dissolution, defoaming, shaping, gelling, collecting and post-treating. The invention has the advantages that the rope is released by adopting the static disc, the rope disc is not moved, the rope can be connected in advance, and the production and connection operation are convenient. The temperature of the casting film liquid and the temperature and humidity of the dry process section are controllable. Hollow fiber membranes of different lengths can be collected as desired.
Description
Technical Field
The invention relates to a continuous sheet-shaped hollow fiber membrane production line and a process method, belonging to the technical field of hollow fiber membrane manufacturing equipment.
Background
With the increasing market demand, the manufacturers of the hollow fiber membranes are increasing, the equipment of the hollow fiber membranes is various, but the equipment has a plurality of problems in combination: firstly, process control: part of important process areas are not automatically controlled or have low automatic degree; collecting: at present, a wire winding wheel is mainly adopted in an enhanced hollow fiber membrane production line for collecting membrane wires, products produced by the method are mainly in a bundle shape or a bundle shape, and due to the wire winding wheel, the produced hollow fiber membranes have the problem of different lengths and waste of products in subsequent use; thirdly, wastewater collection and treatment: some solvents and additives can be added in the production process of the hollow fiber membrane, the solvents and the additives can be separated out in a gel tank and a soaking tank along with the production of the hollow fiber membrane, the direct discharge can affect the environment, and the concentration is lower if the hollow fiber membrane is recovered.
The prior art has the following defects: part of key process points are lack of control; the hollow fiber membrane is wasted when the wire winding wheel collects the hollow fiber membrane; the wastewater generated in the production cannot be well treated.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a continuous sheet-shaped hollow fiber membrane production line and a process method.
A continuous sheet hollow fiber membrane production process method increases monitoring of important data of spinning dissolving, filtering, gelling and soaking process sections through grading of the process and improvement of equipment, realizes accurate control of the process, realizes zero discharge of production wastewater through modification of the soaking equipment, and realizes zero waste of a hollow fiber membrane in manufacture of a hollow fiber membrane component through improvement of collection equipment and the process.
A continuous production process for flaky hollow fibre membrane includes such steps as heating and stirring solvent, resin and additive to obtain uniform membrane casting liquid, shaping by metering equipment and spinneret plate to become hollow, exchanging between solvent and waste solvent to form filter channel, collecting and post-treating to obtain hollow fibre membrane, dissolving, defoaming, shaping, gelatinizing, collecting and post-treating.
A continuous production line for flaky hollow fiber membranes comprises a stirring kettle, a defoaming kettle, a metering pump, a spinneret plate, a gel tank, a filament winding machine, a soaking tank and the like.
Each manufacturer can have some fine adjustment on the structure and control points of the equipment according to the own formula and process.
The invention has the advantages that the rope is released by adopting the static disc, the rope disc is not moved, the rope can be connected in advance, and the production and connection operation are convenient. The temperature of the casting film liquid and the temperature and humidity of the dry process section are controllable. The hollow fiber membranes with different lengths can be collected according to the needs. Zero discharge of waste silk in production. The hollow fiber membrane has zero waste.
Aiming at the problems of the existing equipment, the equipment and the process are improved and integrated from the aspects of production efficiency, key point control, product utilization rate, environmental friendliness and the like.
1. Solid material and liquid material automatic weighing and conveying equipment are added in the material dissolving link, so that no gas or dust is leaked to a workshop in the whole dissolving process, the harm to the environment and personnel is reduced, and the production efficiency is improved. In addition, coating is carried out in part of solid material conveying pipelines according to material characteristics, so that the problem of material wall sticking is reduced, and the adding precision is improved.
2. The filtering equipment is added in the gel centering of the product, so that the cleanliness of the product is improved; the temperature control equipment is added on the casting film liquid conveying pipeline, and the temperature of the casting film liquid can be adjusted at will according to the process requirement; environmental temperature and humidity control equipment is added in the air section of the shaped gel, so that the performances of the product such as the opening degree and the like can be better adjusted; the addition of a solvent concentration monitoring device in the gel bath can keep the concentration of the coagulation bath in a reasonable range to ensure the performance of the product; the static disc rope pay-off equipment solves the problem that different discs of the disc-shaped crochet rope are difficult to connect, and the disc-shaped crochet rope pay-off equipment can be more conveniently applied to production.
3. The collection of the product is divided into two parts: the first part carries out hollow fiber membrane length such as long distance receipts bucket, book to the product earlier more than the kilometer, and the second part carries out fixed length cutting or fixed length to hollow fiber membrane as required and becomes piece, has reduced because the winding wheel number of turns is different, the subassembly manufacturing process demand is different etc. the product that causes is extravagant.
4. In the post-treatment stage of the hollow fiber membrane, countercurrent cleaning soaking equipment is developed according to the precipitation characteristics and the like, all high-concentration recovery of wastewater is realized through forward movement of the hollow fiber membrane and reverse flow of a soaking solution, the product performance is more excellent, in addition, the solvent and the additive can be recovered through rectification of the high-concentration wastewater, the resource recovery and reutilization are realized, and the influence of production wastewater on the environment is reduced.
Drawings
A more complete appreciation of the invention and many of the attendant advantages thereof will be readily obtained as the same becomes better understood by reference to the following detailed description when considered in connection with the accompanying drawings, wherein the accompanying drawings are included to provide a further understanding of the invention and form a part of this specification, and wherein the illustrated embodiments of the invention and the description thereof are intended to illustrate and not limit the invention, as illustrated in the accompanying drawings, in which:
FIG. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a schematic diagram of a partially exploded structure of the present invention.
Fig. 3 is a partially enlarged schematic view of the present invention.
Fig. 4 is a schematic structural view of a stationary disc wire releasing frame assembly of the present invention.
FIG. 5 is a schematic view of the structure of a low-temperature constant-temperature reaction bath assembly of the present invention.
FIG. 6 is a schematic view of the barreled tether assembly of the present invention.
Fig. 7 is a schematic structural diagram of the fixed-length cutting and piece arranging device.
The device comprises a raw material reaction kettle 1, a stirring kettle 2, a static disc wire releasing assembly 3, an operation standing platform 4, a primary filter 5, a core liquid tank 6, a flow meter 7, a metering pump 8, a secondary filter 9, a No. 2 gel tank 10, a safety protection window 11, a wire winding machine 12, a barrel rope collecting mechanism 13, a soaking tank 14, a No. 1 coagulation bath 15, a constant-temperature low-temperature reaction bath 16, a spinneret plate 17, a lifting wire winding wheel 18, a wire winding disc 19, a rotary wire winding assembly 20, a tension control assembly 21, a storage balancing mechanism 22, a wire winding guide wheel 23, a motor transmission assembly 24, a shell front plate 25, a shell rear plate 26, a coil medium inlet 27, a coil medium outlet 28, a guide wheel 29, a traction wheel 30, a barrel rotary base 31, a rotary motor 32, a traction motor transmission shaft 33, a rope penetrating swinging rod 34 and a fixed-length cutting and piece arranging device 35.
Detailed Description
The invention is further illustrated with reference to the following figures and examples.
Obviously, many modifications and variations of the present invention based on the gist of the present invention will be apparent to those skilled in the art.
As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element, component or section is referred to as being "connected" to another element, component or section, it can be directly connected to the other element or section or intervening elements or sections may also be present. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
It will be understood by those skilled in the art that, unless otherwise defined, all terms including technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art.
The following examples are further illustrative in order to facilitate the understanding of the embodiments, and the present invention is not limited to the examples.
Example 1: as shown in figures 1, 2, 3, 4, 5, 6 and 7, a continuous sheet hollow fiber membrane production line comprises a raw material reaction kettle 1 connected with a defoaming kettle 2 through a pipeline, the defoaming kettle 2 connected with a primary filter 5 through a pipeline, the primary filter 5 connected with a metering pump 8 through a pipeline, the metering pump 8 connected with a secondary filter 9 through a pipeline, the secondary filter 9 connected with a spinneret 17 through a pipeline, a core liquid tank 6 connected with a flow meter through a pipeline, the flow meter connected with the spinneret 17 through a pipeline or a lining silk thread guide spinneret 17 on a static disc wire-releasing frame component 3, a constant temperature and low temperature reaction bath 16 provided with a shell front plate 25 and a shell rear plate 26, the shell front plate 25 connected with a coil medium outlet 28, the shell rear plate 26 connected with a coil medium inlet 27, a stand platform 4 connected with the primary filter 5, the core liquid tank 6, the flow meter 7, the metering pump 8, a frame, The secondary filter 9, a No. 2 gel groove 10, a safety protection window 11, a No. 1 coagulation bath 15, a constant-temperature and low-temperature reaction bath 16, a spinneret plate 17 and a lifting wire winding wheel 18 are connected, a wire winding machine 12 is arranged in front of a barreled rope winding mechanism 13, a soaking groove 14 is arranged behind the barreled rope winding mechanism 13, a rope disc 19, a rotary wire winding assembly 20, a tension control assembly 21, a storage balancing mechanism 22, a wire winding guide wheel 23 and a motor transmission assembly 24 are fixed on a frame of a static disc wire unwinding assembly 3, the lining rope disc 19 is connected with the rotary wire winding assembly 20 through a lining rope, the lining rope is connected with the rope storage balancing mechanism 22, the wire winding guide wheel 23 and a driving transmission shaft wheel, and the lining rope is conveyed through the motor transmission assembly 24.
A barrel rotating base 31 of the barrel rope collecting mechanism 13 is connected with a rotating motor 32, a rack of the barrel rope collecting mechanism 13 is connected with a guide wheel 29, a traction wheel 30, a traction motor transmission shaft 33, a rope threading swinging rod 34, a barrel wire placing frame 3511 of a fixed-length cutting and sheet arranging device 35, a barrel wire sheet arranging device 3512 and a traction device 3513.
The countercurrent cleaning equipment comprises a post-treatment soaking tank, a transfer basket, a traction moving device and water circulation equipment.
The temperature and humidity control equipment at the dry process section comprises constant temperature control equipment, a circulating pipeline, a copper pipe heat exchanger and a shell.
The hollow fiber membrane barrel/roll collecting device comprises a hollow fiber membrane constant-speed traction wheel, a traction motor, a device frame and barreled wire rotating equipment.
Example 2: as shown in FIG. 1, FIG. 2, FIG. 3, FIG. 4, FIG. 5, FIG. 6 and FIG. 7, a process for producing a continuous sheet-like hollow fiber membrane comprises the steps of mixing and stirring a plurality of raw materials in a raw material reaction vessel 1 in proportion, flowing into a defoaming vessel 2 after stirring for a certain period of time, fully mixing the raw liquid without bubbles after stirring for a certain period of time, flowing into a primary filter 5, filtering, flowing into a metering pump 8 and a secondary filter 9, and then flowing into a spinneret 17; the core liquid in the core liquid tank 6 flows out through a flowmeter and then enters a spinneret plate 17 or a lining silk thread on a static disc wire releasing frame assembly 2 to be led into the spinneret plate 17, a lining rope disc 19 actively rotates for winding through a rotary wire winding assembly 20, the rope disc 19 is not moved, the lining rope controls the tension of the rope through a tension control assembly 21, a certain demand is stored through a rope storage balancing mechanism 22, and the lining rope bypasses a wire winding guide wheel 23 to enter a driving transmission shaft wheel and is actively conveyed through a motor transmission assembly 24.
The dope and the lining silk thread are sprayed out of the film silk after passing through the spinneret plate 17, the spinneret plate 17 is placed in the low-temperature constant-temperature reaction bath 16 and consists of a shell front plate 25, a shell rear plate 26, a coil medium inlet 27 and a coil medium outlet 28, the medium is water and enters the coil pipe to control the temperature and the humidity of the spinneret plate 17, the sprayed film silk passes through the number 1 coagulating bath 15 and passes through the lifting wire winding wheel 18, the film silk enters the number 2 gel groove 10, and the safety protection windows 11 are arranged above the ports of the number 1 coagulating bath 15 and the number 2 gel groove 10 to protect the safety of operators and prevent the liquid from being splashed out to cause scalding or splashing into eyes.
The film silk passes through No. 2 gel groove 10 and enters into wire winding machine 12, then behind leading wheel 29, traction motor transmission shaft 33 work, drives traction wheel 30 and rotates to the film silk passes traction wheel 30 to rope threading swinging arms 34, and rotating electrical machines 32 drives rotatory bucket base 31 and rotates, thereby the bucket rotates and realizes that the film silk coils and receive the rope in the bucket.
After the rope is collected, the rope is manually cut, cut off and then placed into the silk soaking groove 14 for soaking, and after soaking and airing, the rope is put on a fixed-length cutting piece arranging device.
After the series of mechanical equipment and process flow operation, the curtain film becomes a finished curtain film.
Casting solution: adding the resin and the additive into the solvent, and heating and stirring to dissolve the resin and the additive to form a uniform solution.
A wire winding wheel: the circular wheel for forming the hollow fiber membrane of a specific length is rotated.
Dry process: the distance from the spinneret plate to the liquid level of the gel tank.
The dry process section of the hollow fiber membrane in the gelling process refers to the distance part of the hollow fiber membrane from the outlet of the spinneret plate to the liquid level of the gel liquid, and the temperature and the humidity of the hollow fiber membrane are controllable.
Example 3: as shown in figures 1, 2, 3, 4, 5, 6 and 7, a continuous sheet hollow fiber membrane production line is characterized in that the whole set of equipment adopts a mode of combining remote transmission, centralized control and point position control, a centralized control operation platform is placed at a specific position, technicians and managers can conveniently monitor the equipment of each working section in real time, sub-control operation platforms are arranged at the positions of the equipment, the operators at all posts can conveniently control the equipment in the control range, and the operation of producers is greatly facilitated through the mode.
Each device has the functions of data real-time recording, historical inquiry and overrun alarm, so that an operator can check the running condition of the device at any time, and a technician can search the time, reasons and the like of abnormal problems according to the records; the rope frame is put to innovative equipment quiet dish, countercurrent cleaning soaks equipment, fixed length cutting/row piece equipment etc. has reduced personnel's working strength promptly, has also reduced the emission of pollutant.
Example 4: as shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6 and fig. 7, a continuous sheet-like hollow fiber membrane production process method comprises the following steps:
dissolving: raw materials required for production enter a raw material reaction kettle 1 through equipment, and are heated and stirred in the raw material reaction kettle 1 to become uniform membrane casting liquid;
conveying and filtering: the casting solution in the raw material reaction kettle 1 enters the stirring kettle 2 through a pipeline, is filtered by the primary filter 5 and then reaches the metering pump 8 to finish the conveying and filtering of the casting solution, wherein the pipeline is internally provided with a special spiral pipe structure, the casting solution passes through the outside of the spiral pipe, a proper medium is introduced into the spiral pipe and is not limited to water, oil and the like, and the temperature of the casting solution is controlled by controlling the temperature of the medium; the feed liquid conveying pipeline is internally provided with a spiral pipe structure.
Setting gel: the hooked and braided rope sequentially passes through a rotary wire winding assembly 20, a tension control assembly 21, a storage balancing mechanism 22, a wire winding guide wheel 23, a motor transmission assembly 24 and a film casting solution passing through a metering pump 8 from a rope disc 19 and enters a spinneret plate 17 together to form a hollow structure, and then enters a No. 1 coagulating bath 15 through a constant-temperature and low-temperature reaction bath 16. The shaping gel is not limited in the adoption mode of hot melt adhesive, epoxy adhesive and the like.
An important membrane pore forming stage of the hollow fiber membrane is between the constant-temperature low-temperature reaction bath 16 and the No. 1 coagulating bath 15, a better hollow fiber membrane can be formed by adjusting the temperature and the humidity of the stage, and the constant-temperature low-temperature reaction bath 16 is the main equipment for controlling the temperature and the humidity of the environment; the rope reel 19, the rotary winding assembly 20, the tension control assembly 21, the storage balancing mechanism 22, the winding guide wheel 23 and the motor transmission assembly 24 can enable the crocheted rope to stably enter the No. 1 coagulation bath 15 through adjustment of the devices, and meanwhile, the rope reel 19, the rotary winding assembly 20, the tension control assembly 21, the storage balancing mechanism 22, the winding guide wheel 23 and the motor transmission assembly 24 can enable the rope reel not to rotate any more, so that the crocheted rope can be connected in advance, the labor intensity of workers is reduced, and the production efficiency is improved.
Collecting: the hollow fiber membrane enters the filament winding machine 12 after passing through the second gelation of the No. 2 gel tank 10, and falls into a collection barrel on the barrel rotating base 31 according to a specified shape after the hollow fiber membrane is guided by a guide wheel 29, the traction of a traction wheel 30, the rotation of the barrel rotating base 31 and the positioning of a rope threading swinging rod 34 after the hollow fiber membrane is dragged at a constant speed by the filament winding machine 12, so that a barrel-shaped product with a longer length can be collected; the traction wheel 30 can be replaced by a rope disc or other disc-shaped objects capable of collecting the hollow fiber membranes, and the hollow fiber membranes are directly collected into a disc/roll shape through the rotation of the transmission shaft 33 of the traction motor.
And (3) post-treatment: the hollow fiber membrane in the form of a barrel/roll is put into a soaking tank 14 to be subjected to post-treatment such as soaking. The hollow fiber membranes in the soaking tank 14 are mainly post-treated through a plurality of soaking tanks, after the post-treatment is carried out for a certain time, the hollow fiber membranes are transferred to the next water tank through the hanging rail for the post-treatment, and the soaking solution is transferred from the next soaking tank to the previous soaking tank in sequence through the water pump along with the time, and is finally collected from the first soaking tank.
The hollow fiber membrane can be modified and the soak solution can be concentrated and recovered by the specific countercurrent soaking and cleaning process of the soaking tank 14.
Cutting/arranging sheets: the hollow fiber membrane filaments processed in the soaking tank 14 can be positioned and fixed on the fixed-length cutting and sheet arranging device 35 through 3511 according to the production requirements of subsequent membrane modules, and after 3512 wheels are gathered, the hollow fiber membrane filaments can be cut into a whole bundle of hollow fiber membranes with the required length or injected with glue at the position 3513 to form a curtain type sheet hollow fiber membrane.
The hollow fiber membrane treated by the soaking tank 14 completely meets the requirements of module manufacture, so that no hollow fiber membrane is wasted.
Example 5: the experimental scheme is as follows: 300kg of DMAc with the content of 50-80%, 10-20% of PVDF and 10-20% of PVP are added into a static disc wire-releasing frame assembly 3 through a raw material reaction kettle 1 and a stirring kettle 2, and the error is only about 0.3 kg; the produced hollow fiber membrane has good performance, the length can reach 1000-5000m, the utilization rate of the component can reach more than 99 percent, the concentration of the generated wastewater can reach about 10 percent, and the recycling rate can reach more than 95 percent.
Table one: hollow fiber membrane performance
| Flux LMH | Bubble point MPa | Breaking point MPa | Pore size of mum | |
| Before improvement | 1500-3000 | ＞0.2 | ＞0.3 | 0.09-0.2 |
| After improvement | 2500-3000 | ＞0.25 | ＞0.35 | 0.09-0.12 |
As described above, although the embodiments of the present invention have been described in detail, it will be apparent to those skilled in the art that many modifications are possible without substantially departing from the spirit and scope of the present invention. Therefore, such modifications are also all included in the scope of protection of the present invention.
Claims (10)
1. A continuous production process of flaky hollow fiber membrane includes such steps as heating and stirring solvent, resin and additive to obtain uniform membrane casting liquid, shaping by metering equipment and spinneret plate, exchanging the solvent with waste solvent to form filter channel, collecting and post-treating to obtain hollow fiber membrane filament, dissolving material, defoaming, shaping, gelling, collecting and post-treating.
2. The continuous production process of hollow fiber membrane sheet as claimed in claim 1, wherein the raw material reaction kettle mixes and stirs a plurality of raw materials in proportion, the mixture flows into the de-bubbling kettle to be stired after the stirring, the raw liquid flows into the primary filter in a state of being fully mixed without air bubbles, and flows into the metering pump and the secondary filter after the filtration and then enters the spinneret plate; the core liquid filled with the core liquid flows out through a flowmeter and then enters a spinneret plate or a lining silk thread on a static disc wire releasing frame assembly to be led into the spinneret plate, a lining rope disc actively rotates for winding through a rotary wire winding assembly, the rope disc is not moved, the lining rope controls the tension of the rope through a tension control assembly, a certain demand is stored through a rope storage balancing mechanism, and the lining rope bypasses a wire winding guide wheel to enter a driving transmission shaft wheel and is actively conveyed by electric rope threads of a motor transmission assembly;
the dope and the lining silk thread are sprayed out of the film silk after passing through a spinneret plate, the spinneret plate is placed in a low-temperature constant-temperature reaction bath, the sprayed film silk passes through a lifting wire winding wheel after passing through a No. 1 coagulating bath, the film silk enters a No. 2 gel groove, the film silk enters a wire winding machine through a No. 2 gel groove, then passes through a guide wheel, a transmission shaft of a traction motor is pulled to work to drive the traction wheel to rotate, so that the film silk passes through the traction wheel to a rope threading swinging rod, the rotary motor drives a base of a rotary barrel to rotate, and the barrel rotates to realize that the film silk is wound in the barrel to be wound;
after mechanical equipment and process flow operation, the finished curtain film is formed.
3. The method according to claim 2, wherein the hollow fiber membrane is cut by hand after being taken up, soaked in a filament soaking tank, air-dried after being soaked, and then put on a piece arranging device for fixed-length cutting.
4. The continuous sheet-like hollow fiber membrane production process according to claim 1, wherein the reel is stationary when the crochet rope is unreeled, and only the crochet rope is transported.
5. The method according to claim 1, wherein the dry stage of the hollow fiber membrane in the gelling process is a distance from the outlet of the spinneret to the liquid surface of the gel solution, and the temperature and humidity of the hollow fiber membrane are controllable.
6. The continuous sheet-like hollow fiber membrane production process according to claim 1, wherein the collected hollow fiber membranes are cut according to a desired length.
7. The continuous sheet-like hollow fiber membrane production process method according to claim 1, comprising the steps of:
a dissolving step: raw materials required for production enter a raw material reaction kettle through equipment, and are heated and stirred in the raw material reaction kettle to form uniform membrane casting liquid;
a conveying and filtering step: the casting solution in the raw material reaction kettle enters a stirring kettle through a pipeline, is filtered by a primary filter and then reaches a metering pump to finish the conveying and filtering of the casting solution, wherein the pipeline is internally provided with a spiral pipe structure, the casting solution passes through the outside of the spiral pipe, a proper medium is introduced into the spiral pipe without being limited to water and oil, and the temperature of the casting solution is controlled by controlling the temperature of the medium;
shaping and gelling: the hooked and braided rope sequentially passes through the rotary wire winding component, the tension control component, the storage balancing mechanism, the wire winding guide wheel, the motor transmission component and the film casting liquid through the metering pump from the rope disc and enters the spinneret plate together to form a hollow structure, and then enters the No. 1 coagulating bath through the constant-temperature low-temperature reaction bath,
the method comprises the following steps that an important film hole forming stage of the hollow fiber film is between a constant-temperature low-temperature reaction bath and a No. 1 coagulation bath, the hollow fiber film is formed by adjusting the temperature and the humidity of the section, the crocheted rope can stably enter the No. 1 coagulation bath by adjusting a rope reel, a rotary winding assembly, a tension control assembly, a storage balancing mechanism, a winding guide wheel and a motor transmission assembly, and meanwhile, the rope reel does not rotate any more due to the rope reel, the rotary winding assembly, the tension control assembly, the storage balancing mechanism, the winding guide wheel and the motor transmission assembly, and the crocheted rope is connected in advance;
a collection step: the hollow fiber membrane enters a filament winding machine after passing through secondary gelation of a No. 2 gel groove, falls into a collecting barrel on a barrel rotating base according to a specified shape after the constant-speed traction of the filament winding machine, the guide of a guide wheel, the traction of a traction wheel, the rotation of the barrel rotating base and the positioning of a threading swinging rod, and collects a barrel-shaped product with longer length; or the traction wheel is changed into a rope disc or other disc-shaped objects capable of collecting the hollow fiber membranes, and the hollow fiber membranes are directly collected into a disc shape/a roll shape through the rotation of the transmission shaft 33 of the traction motor;
post-treatment: the barrel-shaped/roll-shaped hollow fiber membrane enters an immersion tank for immersion and other post-treatments. The hollow fiber membranes are subjected to post-treatment in the soaking tanks through a plurality of soaking tanks, the hollow fiber membranes are transferred to the next water tank through the hanger rail after the post-treatment reaches a certain time and then subjected to the post-treatment, and soaking liquid is sequentially transferred from the next soaking tank to the previous soaking tank through the water pump along with the time and is finally collected from the first soaking tank.
8. The continuous production process method of the flaky hollow fiber membrane according to claim 7, comprising the following steps of cutting/sheet arranging: the hollow fiber membrane filaments processed in the soaking tank can be positioned and fixed on the fixed-length cutting and sheet arranging device 35 through 3511 according to the production requirements of subsequent membrane modules, and after 3512 wheels are gathered, the hollow fiber membrane filaments can be cut into a whole bundle of hollow fiber membranes with the required length or injected with glue at the position 3513 to form a curtain type sheet hollow fiber membrane.
9. The continuous production line of hollow fiber membrane sheets as claimed in claim 1, wherein the raw material reaction kettle is connected to the deaeration kettle through a pipeline, the deaeration kettle is connected to the primary filter through a pipeline, the primary filter is connected to the metering pump through a pipeline, the metering pump is connected to the secondary filter through a pipeline, the secondary filter is connected to the spinneret plate through a pipeline, the core liquid tank is connected to the flow meter through a pipeline, the flow meter is led to the spinneret plate through a lining silk thread on the pipeline-connected spinneret plate or the static disc-fed spinning frame assembly, the constant temperature and low temperature reaction bath has a shell front plate and a shell back plate, the shell front plate is connected to the outlet of the coil medium, the shell back plate is connected to the inlet of the coil medium, the operation stand platform is connected to the primary filter, the core liquid tank, the flow meter, the metering pump, the secondary filter, the gel tank No. 2, the safety protection window, the coagulation bath No. 1, the constant temperature and low temperature reaction bath, The spinning device comprises a spinneret plate, a lifting wire winding wheel, a wire winding machine, a rope reel, a rotary wire winding assembly, a tension control assembly, a storage balancing mechanism, a wire winding guide wheel and a motor transmission assembly, wherein the front of a barreled rope winding mechanism is provided with the wire winding machine, the back of the barreled rope winding mechanism is provided with a soaking groove, the rope reel, the rotary wire winding assembly, the tension control assembly, the storage balancing mechanism, the wire winding guide wheel and the motor transmission assembly are fixed on a frame of a static disc wire unwinding frame assembly, the lining rope reel is connected with the rotary wire winding assembly through a lining rope, the lining rope is connected with a rope storage balancing mechanism, the wire winding guide wheel and a driving transmission shaft wheel, and the lining rope is conveyed through the motor transmission assembly.
10. The continuous sheet-like hollow fiber membrane production process according to claim 9, wherein a safety protection window is provided above the ports of the coagulation bath No. 1 and the gel tank No. 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210481720.9A CN114887496A (en) | 2022-05-05 | 2022-05-05 | Continuous sheet-shaped hollow fiber membrane production line and process method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210481720.9A CN114887496A (en) | 2022-05-05 | 2022-05-05 | Continuous sheet-shaped hollow fiber membrane production line and process method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114887496A true CN114887496A (en) | 2022-08-12 |
Family
ID=82720028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210481720.9A Pending CN114887496A (en) | 2022-05-05 | 2022-05-05 | Continuous sheet-shaped hollow fiber membrane production line and process method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114887496A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR820001463B1 (en) * | 1978-11-29 | 1982-08-21 | 몬산토 캄파니 | Crimped hollow fibers for fluid separations and bundles containing the hollow fibers |
| KR20000032588A (en) * | 1998-11-16 | 2000-06-15 | 이구택 | Method and device for adjusting winding shape of wire coil |
| CN102430341A (en) * | 2011-09-16 | 2012-05-02 | 武汉钢铁(集团)公司 | Solvent substitution dissolution technology used in solution phase inversion film manufacturing process |
| CN203781512U (en) * | 2014-01-10 | 2014-08-20 | 东莞新恩祥机械配件有限公司 | Permanent magnetic pay-off device |
| CN106268359A (en) * | 2016-08-31 | 2017-01-04 | 天津碧水源膜材料有限公司 | A kind of RF film silk becomes curtain equipment and preparation method |
| CN206500037U (en) * | 2016-12-16 | 2017-09-19 | 南京膜材料产业技术研究院有限公司 | A kind of preparation facilities of high pollution-resistant polyvinylidene fluoride hollow fiber ultrafiltration membrane |
| CN208917348U (en) * | 2019-04-03 | 2019-05-31 | 杭州卫达生物材料科技有限公司 | Electrostatic spinning vane type collection device |
| CN110327787A (en) * | 2019-04-29 | 2019-10-15 | 南京膜材料产业技术研究院有限公司 | A kind of enhancement type hollow fiber film, preparation method and device |
| CN110479117A (en) * | 2019-07-31 | 2019-11-22 | 水发海若环境技术有限公司 | A kind of preparation method of the big flux hollow fibre ultrafiltration membrane of hydrophily |
| CN113441012A (en) * | 2021-06-30 | 2021-09-28 | 北京碧水源分离膜科技有限公司 | Hollow fiber membrane soaking and cleaning device and method |
-
2022
- 2022-05-05 CN CN202210481720.9A patent/CN114887496A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR820001463B1 (en) * | 1978-11-29 | 1982-08-21 | 몬산토 캄파니 | Crimped hollow fibers for fluid separations and bundles containing the hollow fibers |
| KR20000032588A (en) * | 1998-11-16 | 2000-06-15 | 이구택 | Method and device for adjusting winding shape of wire coil |
| CN102430341A (en) * | 2011-09-16 | 2012-05-02 | 武汉钢铁(集团)公司 | Solvent substitution dissolution technology used in solution phase inversion film manufacturing process |
| CN203781512U (en) * | 2014-01-10 | 2014-08-20 | 东莞新恩祥机械配件有限公司 | Permanent magnetic pay-off device |
| CN106268359A (en) * | 2016-08-31 | 2017-01-04 | 天津碧水源膜材料有限公司 | A kind of RF film silk becomes curtain equipment and preparation method |
| CN206500037U (en) * | 2016-12-16 | 2017-09-19 | 南京膜材料产业技术研究院有限公司 | A kind of preparation facilities of high pollution-resistant polyvinylidene fluoride hollow fiber ultrafiltration membrane |
| CN208917348U (en) * | 2019-04-03 | 2019-05-31 | 杭州卫达生物材料科技有限公司 | Electrostatic spinning vane type collection device |
| CN110327787A (en) * | 2019-04-29 | 2019-10-15 | 南京膜材料产业技术研究院有限公司 | A kind of enhancement type hollow fiber film, preparation method and device |
| CN110479117A (en) * | 2019-07-31 | 2019-11-22 | 水发海若环境技术有限公司 | A kind of preparation method of the big flux hollow fibre ultrafiltration membrane of hydrophily |
| CN113441012A (en) * | 2021-06-30 | 2021-09-28 | 北京碧水源分离膜科技有限公司 | Hollow fiber membrane soaking and cleaning device and method |
Non-Patent Citations (2)
| Title |
|---|
| 段建华: "钢丝技术", 31 March 2020, 苏州大学出版社, pages: 88 * |
| 白星辰: "有色金属挤压与拉拔", 28 February 2010, 北京：冶金工业出版社, pages: 194 - 195 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111921384A (en) | Casting membrane liquid of PVDF hollow fiber ultrafiltration membrane, spinning mechanism and production method thereof | |
| CN103949166B (en) | Inner pressed fiber reinforcement filter membrane and preparation method thereof | |
| CN114887496A (en) | Continuous sheet-shaped hollow fiber membrane production line and process method | |
| CN114210207B (en) | Polymethylpentene hollow fiber membrane preparation device and preparation process thereof | |
| CN113996189A (en) | Preparation method of hollow fiber separation membrane with compact selective layer | |
| CN111054221A (en) | Device and method for preparing hollow fiber membrane | |
| CN105536355B (en) | Melt-blown filter receives technique, melt-blown filter receiving device and melt-blown filter manufacturing machine | |
| CN115285781B (en) | Fiber wire winding equipment and preparation method | |
| CN216878786U (en) | Polymethylpentene hollow fiber membrane preparation device | |
| CN205516895U (en) | It makes machine to melt sprinkling filter core receiving equipment and melt sprinkling filter core | |
| CN212404358U (en) | Device for preparing photochromic yarns | |
| CN210964668U (en) | Processing device for variable-diameter spinning nozzle, hollow fiber membrane tows and membrane component | |
| CN102677194A (en) | Polyphenylene sulfide spinning technology | |
| CN213050123U (en) | Production device of PVDF hollow fiber membrane | |
| CN214701594U (en) | Drying equipment is used in fabrics processing | |
| CN209292517U (en) | Filament spinning component is used in a kind of processing of terylene | |
| CN207016906U (en) | A kind of melt-spinning apparatus | |
| CN114875505A (en) | Production line and technological method of hollow nanofiltration fiber membrane | |
| CN115105957B (en) | PAN/PVDF/PVB ternary alloy hollow fiber ultrafiltration membrane and preparation method thereof | |
| CN216919494U (en) | Hollow microporous anti-fracture polyester POY filament spinning device | |
| CN216864400U (en) | Melt spinning processing equipment | |
| CN211570848U (en) | Wet spinning machine | |
| CN211570849U (en) | A receive silk subassembly for wet spinning machine | |
| CN219922611U (en) | Hollow fiber membrane preparation device | |
| CN211570850U (en) | Spinning pack for wet spinning machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |