CN202860418U - Device for semi-continuously preparing composite film - Google Patents
Device for semi-continuously preparing composite film Download PDFInfo
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- CN202860418U CN202860418U CN201220255953.9U CN201220255953U CN202860418U CN 202860418 U CN202860418 U CN 202860418U CN 201220255953 U CN201220255953 U CN 201220255953U CN 202860418 U CN202860418 U CN 202860418U
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- nozzle
- extrusion nozzle
- membrane
- liquid crystal
- touch screen
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- 239000002131 composite material Substances 0.000 title claims abstract description 36
- 238000002360 preparation method Methods 0.000 claims abstract description 21
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 17
- 239000012530 fluid Substances 0.000 claims abstract description 8
- 239000012528 membrane Substances 0.000 claims description 56
- 210000004379 membrane Anatomy 0.000 claims description 54
- 210000002469 basement membrane Anatomy 0.000 claims description 38
- 238000007599 discharging Methods 0.000 claims description 5
- 239000003814 drug Substances 0.000 claims description 4
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000001125 extrusion Methods 0.000 abstract 10
- 239000004615 ingredient Substances 0.000 abstract 2
- 239000007888 film coating Substances 0.000 abstract 1
- 238000009501 film coating Methods 0.000 abstract 1
- 238000004804 winding Methods 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 17
- 239000011248 coating agent Substances 0.000 description 15
- 238000000576 coating method Methods 0.000 description 15
- 238000000926 separation method Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000002699 waste material Substances 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 238000010923 batch production Methods 0.000 description 2
- 238000010924 continuous production Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 238000009776 industrial production Methods 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000011031 large-scale manufacturing process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000002033 PVDF binder Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000000845 anti-microbial effect Effects 0.000 description 1
- 239000012296 anti-solvent Substances 0.000 description 1
- 239000004599 antimicrobial Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000411 inducer Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000001471 micro-filtration Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000001728 nano-filtration Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 229920005573 silicon-containing polymer Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000000108 ultra-filtration Methods 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
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- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model relates to a device for semi-continuously preparing a composite film, which comprises an ingredient reaction kettle, a middle feeding tank, a solution filter, an extrusion nozzle, an extrusion nozzle adjustable switch, a liquid crystal touch screen program control interface and a base film conveyor, wherein the ingredient reaction kettle is connected with the middle feeding tank; the bottom of the middle feeding tank is connected with the solution filter; the solution filter is connected with the upper part of the extrusion nozzle; the liquid crystal touch screen program control interface is connected with the upper part of the extrusion nozzle and a flow control valve; the extrusion nozzle adjustable switch is arranged below the extrusion nozzle; the extrusion nozzle is positioned on the upper part of the releasing and winding roll of the base film conveyor; and the extrusion state of a fluid extruded from the extrusion nozzle is controlled through a program set by the liquid crystal touch screen program control interface so that the semi-continuous composite film is prepared. The film preparation equipment is simple in structure and can easily realize the regioselective film coating by controlling the flowing state of the fluid inside the extrusion nozzle through the program set by a liquid crystal touch screen program control system, realize the large-area regioselective preparation of the composite film, save the preparation cost and create the outstanding economic benefit.
Description
Technical field
The utility model relates to the composite membrane preparing technical field, more precisely, has related to a kind of efficiently device of semicontinuous preparation composite membrane.
Background technology
Membrane separation technique is new and effective isolation technics in the present age, it is the product of multidisciplinary intersection, be particularly suitable for modern industry to energy-conservation, enhance productivity, low-grade raw material recycling and eliminate the needs of environmental pollution, become the important component part that realizes Economic Sustainable Development Strategy.Membrane separation technique and traditional isolation technics relatively, have that separative efficiency is high, energy consumption is low, floor space is little, process is simple, easy to operate, free from environmental pollution, be convenient to and the characteristics such as other technologies are integrated.Nearly three more than ten years membrane separation technique be widely used in the fields such as petrochemical industry, pharmacy, biochemistry, environment, the energy, electronics, metallurgy, light industry, food, space flight, desalinization, health care.
Membrane material itself is the key that realizes the film separation process.Membrane material at first will possess good film forming, basic zero defect large-scale production; It is less important to possess the performances such as heat-resisting, acid and alkali-resistance, anti-microbial attack, anti-solvent and resistance to oxidation.Realize that the suitability for industrialized production of diffusion barrier must can guarantee large-scale production.
Composite membrane is compared with asymmetric membrane has very large industrial applications advantage, can select different materials making active layer and basement membrane to make their function reach optimization; The ultra-thin active layer of strong interaction can be arranged with distinct methods preparation and component, make film have very high separating effect and mass transfer flux to separation mixture, have simultaneously good materialization stability and pressure tightness; Can be prepared with the composite membrane of good reproducibility and different activities layer thickness; These advantages have determined that the membrane separation technique industrialization must adopt the form of composite membrane.
Scraping membrane technology is one of most popular method of present plate compounding film preparation, thereby coating solution is attached to formation composite membrane active layer on the basement membrane, obtains the composite membrane that needs through subsequent treatment.
Existing Flat Membrane prepares form and mainly contains two kinds, and a kind of is the small-sized Batch Process Flat Membrane device that uses in the laboratory scope, and a kind of is industrial widely used continuous production Flat Membrane device.The former can only satisfy the demand in laboratory, the film poor repeatability of preparation, and poor stability, the membrane area of one time to produce is very little.The latter is widely used in the industrial production Flat Membrane, but the waste that this continuous mode of production is brought resource.All adopt continuous production in existing industrial production Flat Membrane industry, namely continuously apply the active layer film forming solution on basement membrane, then according to using needs to be cut into the size of needs, this must bring the waste of basement membrane and active layer film forming solution.Therefore, how large tracts of land prepares the composite membrane of suitable dimension, stable performance, and the manufacturing cost of saving composite membrane is present urgent problem.
Summary of the invention
The purpose of this utility model is in order to address the above problem, improve the preparation technology of flat composite membrane, the composite membrane of film separation process needs is satisfied in preparation, the utility model proposes a kind of device of semicontinuous preparation composite membrane, can effectively reduce the cost of composite membrane preparation, improve repeatability and the utilization rate of film.
The technical solution of the utility model is as follows: a kind of device of semicontinuous preparation composite membrane, it is characterized in that, comprising: batching reactor 2, middle gravitation tank 4, solution strainer 7, nozzle 9, nozzle rearrangeable switch 11, liquid crystal touch screen programme-control interface 10 and basement membrane conveyer 15 form; Reactor 2 bottoms of wherein preparing burden are connected with middle part, middle gravitation tank 4 sides through charging switch 16 and membrane pump 3; Middle gravitation tank 4 bottoms are connected with middle part, solution strainer 7 sides by discharging switch 17 and screw metering pump 6; Solution strainer 7 another sides link to each other with nozzle 9 tops by flow control valve 8; Liquid crystal touch screen programme-control interface 10 is connected with nozzle 9 tops and flow control valve 8 sides by circuit; Wherein be provided with nozzle rearrangeable switch 11 below the nozzle 9, nozzle 9 is arranged on the top of basement membrane conveyer 15 let off roll 14.
Be provided with temperature controller 1 in the above-mentioned batching reactor 2, the temperature in the control reactor; Middle gravitation tank 4 is provided with tank level control system 5 and temperature controller 1; Wherein said tank level control system 5 is connected to described middle gravitation tank 4 sides by circuit; Middle gravitation tank 4 is provided with fluid flowmeter 18; Thereby the liquid level in the middle of the control in the material liquid tank is controlled to flowing of coating solution.Wherein thereby the closure state control fluid of the programme-control nozzle rearrangeable switch 11 set according to liquid crystal touch screen programme-control interface 10 of flow control valve 8 prepares semi-continuous composite membrane from the state of extruding of nozzle 9.
Wherein basement membrane conveyer 15 is comprised of basement membrane 12, wind-up roll 13 and let off roll 14, the transmission of control basement membrane.Arrange on the wherein said batching reactor 2 and drip medicine pipeline 19; Batching reactor 2 belows are provided with sample and pick and place mouth 20, pick and place mouth by sample and open or close the batching reactor.
The utility model also provides the technique of utilizing said apparatus to prepare composite membrane, and its concrete steps are as follows: prepare coating solution in batching reactor 2; Coating solution is emitted through charging switch 16 from batching reactor bottom and is entered membrane pump 3, thus gravitation tank 4 in the middle of feeding, and the liquid in the middle gravitation tank enters screw metering pump 6 by the control of discharging switch 17 and pumps into solution strainer 7 and filter; Liquid after the filtration enters nozzle 9 through flow control valve by solution strainer 7 under the set program in liquid crystal touch screen programme-control interface 10, nozzle rearrangeable switch 11 is opened when needs are filmed, and nozzle rearrangeable switch 11 is closed when not needing to film; In the time of need to filming, coating solution forms uniform film and is coated on the basement membrane in the space of extruding of nozzle; The basement membrane that has applied obtains desired composite membrane through subsequent treatment.Subsequent processes generally comprises inversion of phases, drying, crosslinked, radiation, vapor deposition, vacuum plasma is processed.
The flow of preferred diaphragm pump is 1-500mL/min; Feed was filled with in the 1/5-4/5 in the middle of liquid level maintained in the gravitation tank in the middle of the tank level control system control; The flow of screw metering pump is 1-500mL/min; Flow is 1-500mL/min when filming.
The set program in liquid crystal touch screen programme-control interface is: the opening time of nozzle is 5-250 second, and the closed center time is 1-25 second; The space of extruding of nozzle is 0.1-10mm; The translational speed of basement membrane is 0.1-20cm/s.Described fluid level control valve is connected with the inducer of middle gravitation tank by feedback circuit, valve open when liquid level drops to minimum level, gravitation tank in the middle of feed liquid enters, valve closing when liquid level reaches maximum level.
Described flow control valve links to each other with described nozzle, thereby liquid flow control valve control nozzle after the basement membrane coating needs width is closed and is stopped to film, flow control valve control nozzle was opened so that liquid flows out again after basement membrane walked to fix blank gap, so repeatedly was prepared semi-continuous composite membrane.
The let off roll of basement membrane conveyer is arranged on the below of nozzle, the translational speed of control basement membrane.The program of flow control valve is by liquid crystal display programme-control interface setting.The requirement setting of being filmed by the control system basis in the blank gap of basement membrane coating size and basement membrane.
Described basement membrane can be organic material, also can be inorganic material.Described composite membrane can be organic organic hybrid films, organic/inorganic composite film and inorganic inorganic substances compound membrane.Composite membrane comprises following film separation process: micro-filtration, ultrafiltration, nanofiltration, counter-infiltration, gas permeation, infiltration evaporation, amberplex and bio-medical diffusion barrier etc.
Beneficial effect:
The preparation technology that the utility model combines Batch Process and produces continuously flat composite membrane, control the flow regime of liquid by the switch of control nozzle, thereby the size of controlling diaphragm, effectively utilized like this coating solution, reduced the waste of coating solution, improved the utilization rate of basement membrane, for the suitability for industrialized production of composite membrane provides the foundation.
Description of drawings
Fig. 1 is the structural representation of composite membrane of the device preparation of a kind of semicontinuous preparation composite membrane of the utility model; A-basement membrane wherein, the B-composite membrane;
Fig. 2 is the apparatus structure schematic diagram of the semicontinuous preparation flat composite membrane of the utility model; 1. temperature controllers wherein; 2. batching reactor; 3. membrane pump; 4. intermediate feed tank; 5. tank level control system; 6. screw metering pump; 7. solution strainer; 8. flow control valve; 9. nozzle; 10. liquid crystal touch screen programme-control interface; 11. nozzle rearrangeable switch; 12. basement membrane; 13. wind-up roll; 14. let off roll; 15. basement membrane conveyer; 16. charging switch; 17. discharging switch; 18. fluid flowmeter; 19. drip the medicine pipeline; 20. sample picks and places mouth;
The implementation formula
A kind of device of semicontinuous preparation composite membrane, structural representation comprise that batching reactor, middle gravitation tank, solution strainer, nozzle, liquid crystal touch screen programme-control interface and basement membrane conveyer form as shown in Figure 2; Wherein prepare burden reactor bottom is connected in the middle part of charging switch and membrane pump and middle gravitation tank side; Middle gravitation tank bottom is connected with middle part, solution strainer side by discharging switch and screw metering pump; The solution strainer another side links to each other with nozzle top by flow control valve; Liquid crystal touch screen programme-control interface is connected with nozzle top and flow control valve side by circuit; Wherein be provided with the nozzle rearrangeable switch below the nozzle, nozzle is arranged on the top of basement membrane conveyer let off roll; Be provided with temperature controller in the batching reactor, the batching reactor arranges and drips the medicine pipeline; Batching reactor below is provided with sample and picks and places mouth, and middle gravitation tank is provided with tank level control system and temperature controller; Wherein said tank level control system is connected to described middle gravitation tank side by circuit; Middle gravitation tank is provided with fluid flowmeter; The basement membrane conveyer is comprised of basement membrane, wind-up roll and let off roll.
The coating solution of preparation polyvinylidene fluoride in the batching reactor; Solution is emitted through the charging switch from batching reactor bottom and is entered membrane pump, thus gravitation tank in the middle of feeding, and the flow of membrane pump is 4mL/min; Feed was filled with 1/5 place in the middle of liquid level maintained in the gravitation tank in the middle of the tank level control system control; Liquid in the middle gravitation tank pumps into solution strainer by screw metering pump and filters; The flow of screw metering pump is 3mL/min; Liquid enters nozzle through flow control valve by solution strainer under the set program in liquid crystal touch screen programme-control interface, flow set is 4mL/min when needs are filmed, flow control valve cuts out when not needing to film, the opening time of program setting nozzle is 5 seconds, the closed center time is 5 seconds, the space of extruding of nozzle is 0.5mm, and the translational speed of basement membrane is 0.3cm/s; Coating solution forms uniform film and is coated on the basement membrane in the space of extruding of nozzle; Basement membrane primary coating length is 1.5cm, and fixing blank gap is 1.5cm; The basement membrane that has applied obtains desired composite membrane through inversion of phases, heat treatment subsequent treatment.
The coating solution of preparation dimethyl silicone polymer in the batching reactor; Solution is emitted through the charging switch from batching reactor bottom and is entered membrane pump, thus gravitation tank in the middle of feeding, and the flow of membrane pump is 490mL/min; Feed was filled with 4/5 place in the middle of liquid level maintained in the gravitation tank in the middle of the tank level control system control; Liquid in the middle gravitation tank pumps into solution strainer by screw metering pump and filters; The flow of screw metering pump is 490mL/min; Liquid enters nozzle through flow control valve by solution strainer under the set program in liquid crystal touch screen programme-control interface, flow set is 500mL/min when needs are filmed, flow control valve cuts out when not needing to film, the opening time of program setting nozzle is 250 seconds, the closed center time is 24 seconds, the space of extruding of nozzle is 9mm, and the translational speed of basement membrane is 20.0cm/s; Coating solution forms uniform film and is coated on the basement membrane in the space of extruding of nozzle; Basement membrane primary coating length is 50m, and fixing blank gap is 4.8m; The basement membrane that has applied obtains desired composite membrane through the crosslinked subsequent treatment of super-dry.
Claims (3)
1. the device of a semicontinuous preparation composite membrane, it is characterized in that, comprise batching reactor (2), middle gravitation tank (4), solution strainer (7), nozzle (9), nozzle rearrangeable switch (11), liquid crystal touch screen programme-control interface (10) and basement membrane conveyer (15); Wherein prepare burden reactor (2) bottom is connected in the middle part of charging switch (16) and membrane pump (3) and middle gravitation tank (4) side; Middle gravitation tank (4) bottom is connected with middle part, solution strainer (7) side by discharging switch (17) and screw metering pump (6); Solution strainer (7) another side links to each other with nozzle (9) top by flow control valve (8); Liquid crystal touch screen programme-control interface (10) is connected with nozzle (9) top and flow control valve (8) side by circuit; Wherein be provided with nozzle rearrangeable switch (11) below the nozzle (9), nozzle (9) is arranged on the top of basement membrane conveyer (15) let off roll (14).
2. device according to claim 1 is characterized in that being provided with in the described batching reactor (2) temperature controller (1); Middle gravitation tank (4) is provided with tank level control system (5) and temperature controller (1); Wherein said tank level control system (5) is connected to described middle gravitation tank (4) side by circuit; Middle gravitation tank (4) is provided with fluid flowmeter (18); Basement membrane conveyer (15) is comprised of basement membrane (12), wind-up roll (13) and let off roll (14).
3. device according to claim 1 is characterized in that, described batching reactor (2) arranges and drips medicine pipeline (19); Batching reactor (2) below is provided with sample and picks and places mouthful (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220255953.9U CN202860418U (en) | 2012-05-31 | 2012-05-31 | Device for semi-continuously preparing composite film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220255953.9U CN202860418U (en) | 2012-05-31 | 2012-05-31 | Device for semi-continuously preparing composite film |
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| Publication Number | Publication Date |
|---|---|
| CN202860418U true CN202860418U (en) | 2013-04-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220255953.9U Expired - Lifetime CN202860418U (en) | 2012-05-31 | 2012-05-31 | Device for semi-continuously preparing composite film |
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| Country | Link |
|---|---|
| CN (1) | CN202860418U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102698609A (en) * | 2012-05-31 | 2012-10-03 | 南京工业大学 | Device for preparing semi-continuous composite membrane and process for preparing composite membrane |
-
2012
- 2012-05-31 CN CN201220255953.9U patent/CN202860418U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102698609A (en) * | 2012-05-31 | 2012-10-03 | 南京工业大学 | Device for preparing semi-continuous composite membrane and process for preparing composite membrane |
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| Date | Code | Title | Description |
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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: 20130410 |