CN101983756B - Spiral coil type diffusion dialysis membrane assembly and preparation method thereof - Google Patents
Spiral coil type diffusion dialysis membrane assembly and preparation method thereof Download PDFInfo
- Publication number
- CN101983756B CN101983756B CN2010101440424A CN201010144042A CN101983756B CN 101983756 B CN101983756 B CN 101983756B CN 2010101440424 A CN2010101440424 A CN 2010101440424A CN 201010144042 A CN201010144042 A CN 201010144042A CN 101983756 B CN101983756 B CN 101983756B
- Authority
- CN
- China
- Prior art keywords
- runner
- amberplex
- diffusion dialysis
- central tube
- membrane module
- 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.)
- Active
Links
Images
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
- External Artificial Organs (AREA)
Abstract
The invention discloses a spiral coil type diffusion dialysis membrane assembly and a preparation method thereof. The spiral coil type diffusion dialysis membrane assembly is characterized in that an ion exchange membrane is clamped between two central tubes, runner screens on two sides mutually and tightly adhere for surrounding the central tubes to coil together according to same direction and are stuck on the axial edge to be sealed into a cylinder; the tail end of the ion exchange membrane forms two tangential runner openings which are radially symmetrical on the outer edge of the cylinder, and a side flow tube is sticked, sealed and fixed respectively by two openings; then the whole cylinder including the side flow tube is tightly wound and fixed by a plastic membrane to form a membrane core, the membrane core is put into a cylindrical shell, and two tips are cast and fixed by adhesive to form the spiral coil type diffusion dialysis membrane assembly with four inlet and outlet adapters. The equipment is compact, has big packing density, can be vertically assembled to occupy small space, can realize the radial spiral counter flow of diffusion liquid and dialysate flow, has big turbulence degree, high mass transfer efficiency and large feed liquid treatment capacity on unit membrane area and is easy to integrate with other reaction or separation equipment.
Description
Technical field
The invention belongs to the membrane separation plant technical field; Being particularly related to anion-exchange membrane or cation-exchange membrane and runner filter rolls around central tube together; Utilize the diffusion dialysis principle, be used for the acid of Separation and Recovery industrial waste acid liquid or spent lye or spiral separation membrane assembly of alkali and preparation method thereof.
Background technology
Diffusion dialysis is to be motive force with the concentration difference, utilizes ion to reach the purpose of separation through film generation selectively penetrating, does not consume energy in theory, is divided into the anode membrane diffusion dialysis recovery of alkali (as be used for) and cavity block the diffusion dialysis recovery of acid (as be used for).Wherein cavity block diffusion dialysis techniques make use anion-exchange membrane is comparatively advanced industrial waste acid recycling technology to hydrogen ion and the different realization acid of selection permeability of metal ion and separating of salt, has obtained extensive use in metallurgical industry and environmental protection field.In existing technology; The diffusion dialysis device equipment that is proposed among U.S. Pat 5264123 and the US5217612; And the diffusion dialysis device of sky, Shandong dimension membrane technology Co., Ltd, Japanese Astorm company and the production of U.S. Mech-Chem company; Be plate and frame assembly (also claiming flat); This type of diffusion dialysis device is made up of anion-exchange membrane or cation-exchange membrane, runner filter, runner frame, runner switch boards, strap and four flow-path tube interfaces at least; Its agent structure is formed by stacking " film, net, frame " successively, is connected to form two fluid passages of film heteropleural in the diffusion dialysis device through duct around the frame, promptly spreads flow road and dialysate runner.But because the said equipment loading density is low, two ends need to clamp with steel plate, make equipment heavy, and floor space is big, and clamping plate is prone to be corroded; Owing to adopt the multilayer chip structure, be difficult for sealing between layer and the layer, and need the border line length of sealing, for guaranteeing the sealing of film both sides, high to the requirement on machining accuracy of sheet frame and the parts that seal; Owing to adopt multilayer insulating panel, cause fluid resistance losses big, and assignment of traffic is inhomogeneous, be difficult for reinforcing mass transfer and alleviate concentration polarization; Because the flow process of feed liquid is short on every block of plate that its structure caused, through the plate face once to see through the liquid relative quantity few; In order to make feed liquid reach certain enrichment, need repeatedly through the plate face, perhaps feed liquid needs repeatedly circulation; Fluid-flow rate is low, and pattern of flow is a laminar flow mostly, thereby less turbulence is little, makes that the mass-transfer efficiency of whole device is lower.
Summary of the invention
The purpose of this invention is to provide a kind of spiral wound diffusion dialysis membrane module and preparation method thereof, to solve the problem that existing diffusion dialysis appliance arrangement is heavy, mass-transfer efficiency is lower.
Spiral wound diffusion dialysis membrane module of the present invention; Comprise the runner filter that is distributed in the amberplex both sides; Wherein a side constitutes diffusion flow road and takes over a pair of diffusion liquid turnover and is connected, and opposite side constitutes the dialysate runner and takes over a pair of dialysate turnover and is connected; It is characterized in that: with a pair of central tube that pieces together is the axle center; Be close to the spiral cylinder that is rolled into each other by amberplex and runner filter; The tangential direction runner opening part of two radial symmetric is bonded and sealed respectively and fixes a lateral flow tubes on this cylinder outer rim of amberplex end, and this lateral flow tubes is arranged in parallel near the inwall and the central tube of cylindrical housing; The space that is supported by the runner filter constitutes the both sides that the fluid passage also is positioned at amberplex all the time, and wherein a side is diffusion flow road, and then opposite side is the dialysate runner; Spread liquid by wherein lateral flow tubes inflow, get into the runner filter, flow, get into wherein also outflow of central tube from the liquid collecting hole that is distributed on the central tube perisporium at last at the spiral ecto-entad of amberplex one side through the liquid collecting hole that is distributed on its perisporium; Dialysate is flowed into by another root central tube, and is spiral mobile from inside to outside at the amberplex opposite side by liquid collecting hole entering runner filter, gets into another root lateral flow tubes and outflow through liquid collecting hole at last.
The preparation method of spiral wound diffusion dialysis membrane module of the present invention; It is characterized in that: between two central tubes, sandwich an amberplex and two runner filters; Make two runner filters be arranged in the both sides of amberplex; Maintenance is the boundary with the central tube, two ends amberplex equal in length, and amberplex, runner filter and central tube bonding is fixing; Amberplex and runner filter are close to around central tube by same direction one roll set each other, and the limit crimping is rolled into cylinder in the axial edge coated with adhesive adhesive seal of amberplex and runner filter; Be rolled onto the amberplex end, on this cylinder outer rim, form the tangential direction runner opening of two radial symmetric, respectively be bonded and sealed at two opening parts respectively and fix a lateral flow tubes, this lateral flow tubes and central tube are arranged in parallel; To comprise that with plastic sheeting the whole cylinder of lateral flow tubes takes up sealing and fixing again; Form the film core; The film core is packed in the cylindrical housing; Make the inwall of lateral flow tubes near shell, fixing between the two ends of film core and the shell with the adhesive casting, constitute with four and import and export the spiral wound diffusion dialysis membrane module of taking over; Be distributed with liquid collecting hole on the perisporium of said central tube and lateral flow tubes; Two groups of " central tube-runner filter-lateral flow tubes " passages that are positioned at the amberplex both sides constitute screw type diffusion flow road and dialysate runner respectively.
Said amberplex is plate film; Anion-exchange membrane requires acidproof, is processed by the macromolecular material that has quaternary ammonium group usually; And the cation-exchange membrane requirement is alkaline-resisting, is processed by the macromolecular material that has sulfonic acid group or hydroxy-acid group usually.
Said runner filter can be woven and processed by polypropylene, polyethylene, polyvinyl chloride, polyester (being used for acid recovery) or polyamide (being used for alkali reclaims) material; The length of individual runner filter is 0.5-1 times of used individual amberplex; Can adopt single or multiple lift; In order to reduce flow resistance, but at the assembly thickness ecto-entad progressive additive of upper filter radially.
It is that semicircular pipeline or pipe main body part promptly are circular pipeline by the section of tubing cross section of amberplex and runner filter parcel for semicircle pipe joint end section for pipeline, the cross section of circle that said central tube can adopt the cross section; As preferably; Adopting the pipe main body part is semicircle by the section of tubing cross section of amberplex and runner filter parcel promptly; And the pipe joint end section is circular pipeline; Can make a pair of central tube piece together the back overall sectional for circular like this, be that cylinder profile and central tube interface end cross section are circle to guarantee assembly after rolling formation, connects with convenient.
It is that semicircular pipeline, cross section are that the section of tubing cross section that meniscate pipeline or pipe main body part promptly contact with amberplex is the pipeline of circle for semicircle or crescent pipe joint end section for pipeline, the cross section of circle that said lateral flow tubes can adopt the cross section; As preferably, the section of tubing cross section of adopting the pipe main body part promptly contact with amberplex is crescent and the pipe joint end section pipeline for circle; The crescent section part of lateral flow tubes can be close to the cylinder periphery with convenient and amberplex sealing and fixing, and lateral flow tubes interface end cross section is circular conveniently to connect.
Said central tube and lateral flow tubes all can be processed by polyvinyl chloride, polyethylene, polypropylene, Kynoar or polytetrafluoroethylmaterial material.
Circle, ellipse or rectangle can be adopted in the cross section of said shell, are preferably circle; Can be made by polyvinyl chloride, polypropylene or glass-reinforced plastic material.
As the alternative way that lateral flow tubes is installed in said membrane module; Can be at the tangential runner opening part of two radial symmetric of said cylinder outer rim, with the terminal shaft of film to sealing label on outer casing inner wall, or be sealed between film distal outer surface and the outer casing inner wall with sealing strip; Two runner openings are separated fully; Shell facies is answered the position perforate outside again, and two runner interfaces are set, to substitute the effect of lateral flow tubes.
Spiral wound diffusion dialysis membrane module of the present invention is when using as the recovery industrial waste acid; Amberplex in the spiral wound diffusion dialysis membrane module is selected plate anion-exchange membrane for use; The spent acid feed liquid is walked the dialysate runner, helical flow from inside to outside, and water walks to spread the flow road; The ecto-entad helical flow, the type of flow of two kinds of fluids is taked spiral adverse current.Utilize the diffusion dialysis principle; With concentration difference as motive force; Because the concentration of the acid of waste liquid side and salt thereof is far above the water side, so there is concentration gradient in the film both sides, the trend of the oriented diffusion flow of spent acid and salt road infiltration; But anion-exchange membrane has the selection permeability, can not let every kind of ion pass through with equal opportunity; At first anionic membrane skeleton itself is positively charged; In solution, has the characteristic that attracts electronegative ion hydration and repel positively charged ion hydration; So under the effect of concentration difference, the anion of spent acid side is attracted and successfully sees through the side that the fenestra road gets into water; According to electroneutral requirement, also can carry the ion that has positive charge secretly simultaneously, but because hydrionic hydrated radius is smaller; Electric charge is less; And the ion hydration radius of slaine is bigger, has high valence charge again, so hydrogen ion can preferentially pass through film; Acid in the waste liquid will be separated like this, gets into diffusion flow road.Spiral wound diffusion dialysis membrane module of the present invention adopts spiral counter-current flow, and it is poor to have increased mean concentration, has improved mass transfer force; Simultaneously because the flow path of fluid is long, flowing velocity is fast, has increased mass tranfer coefficient, makes the performance of assembly reach optimization.Also can take a plurality of connection in series-parallel to use spiral wound diffusion dialysis membrane module of the present invention as required.The industrial waste acid principle is similar with reclaiming; Spiral wound diffusion dialysis membrane module of the present invention is when using as the recovery industrial alkali waste; Amberplex in the spiral wound diffusion dialysis membrane module is selected plate cation-exchange membrane for use, because cationic membrane skeleton itself is electronegative, in solution, has the ion hydration that attracts positively charged and the characteristic of repelling electronegative ion hydration; So under the effect of concentration difference, the cation of salkali waste side is attracted and successfully sees through the side that the fenestra road gets into water; Simultaneously according to electroneutral requirement; Also can carry the ion that has negative electrical charge secretly, but because the hydrated radius of hydroxide ion is smaller, electric charge is less; And other anionic ion hydration radius is bigger; Have high valence charge again, so hydroxide ion can be preferential through film, the alkali in the waste liquid will be separated like this.
Because the present invention has adopted the diffusion dialysis membrane module structure of spiral wound, arrange compactness, loading density is big, and volume is little, and is in light weight, can three-dimensionally assemble, and floor space is little, need not clamping device; Can realize spreading the radially spiral counter-current flow of two kinds of fluids of liquid and dialysate; It is poor to have increased mean concentration, has improved mass transfer force, and less turbulence is big; Mass-transfer efficiency is higher; Help reinforcing mass transfer and alleviate concentration polarization, elementary membrane area feed liquid treating capacity is big, and is easy to other reaction or separation equipment integrated.Fluid flows does not have branch diametrically, and flow path is long, flowing velocity is fast.Compare with the diffusion dialysis device of existing plate and frame structure; The present invention has overcome prior art equipment heavy, easy-to-leak liquid, is prone to be corroded, and mass-transfer efficiency is lower; Elementary membrane area feed liquid treating capacity is little to be difficult for the connection in series-parallel use again, and the more high shortcoming of manufacturing cost of device.
In existing rolled membrane module; Representative is coiled reverse osmosis membrane assembly and rolling nanofiltration membrane component; Compare with them,, therefore on its preparation method, also exist than big-difference because spiral wound diffusion dialysis membrane module of the present invention has bigger difference with them on principle and purposes.As: spiral wound diffusion dialysis membrane module central tube of the present invention is that semicircle pipeline amalgamation is formed by two main body sections, and rolling counter-infiltration and rolling nanofiltration membrane component central tube are a circular pipe formation; Spiral wound diffusion dialysis membrane module of the present invention adopts one whole film to roll, and rolling counter-infiltration and rolling nanofiltration membrane component often adopt the parallel connection of a plurality of film bag leaf to roll; Two kinds of fluid-flow modes are spiral adverse current or concurrent flow in the spiral wound diffusion dialysis membrane module of the present invention; And a fluid streams is spiral flowing in rolling counter-infiltration and the rolling nanofiltration membrane component; Another fluid streams is an axial flow, and two fluid streams form cross-flow passes; Compare with the rolling nanofiltration membrane component with the rolling counter-infiltration, spiral wound diffusion dialysis membrane module rolling technology of the present invention is easier, rolls operation and more is prone to row, and production process requires lower to automation.
Description of drawings
Fig. 1 is the general structure sketch map of spiral wound diffusion dialysis membrane module of the present invention;
Fig. 2 is the central tube of spiral wound diffusion dialysis membrane module of the present invention and the sketch map of lateral flow tubes;
Fig. 3 is spiral wound diffusion dialysis membrane module film of the present invention, net, pipe assembling sketch map;
Fig. 4 rolls the seal process sketch map for spiral wound diffusion dialysis membrane module of the present invention;
Fig. 5 is the runner sketch map for the cross-sectional structure of spiral wound diffusion dialysis film core of the present invention;
Fig. 6 is that the optional shell of spiral wound diffusion dialysis membrane module of the present invention is taken over sketch map;
Fig. 7 is the spent acid recyclability testing arrangement sketch map of spiral wound diffusion dialysis membrane module of the present invention.
The specific embodiment
This spiral wound diffusion dialysis membrane module is elaborated with embodiment below in conjunction with accompanying drawing.
Embodiment 1: the effective film area is the preparation process of 0.5 square metre spiral wound diffusion dialysis membrane module
Fig. 1 is the general structure sketch map of spiral wound diffusion dialysis membrane module of the present invention; Fig. 2 has provided the sketch map of spiral wound diffusion dialysis membrane module central tube and lateral flow tubes.Between two central tubes 1 and 7, sandwich an amberplex 3 and two runner filters 4 and 5; Make two runner filters 4 and 5 be arranged in the both sides of amberplex 3; Maintenance is the boundary with central tube 1 and 7; Two ends amberplex equal in length, and bonding between amberplex 3, runner filter 4,5 and central tube 1 and 7 is fixing; Amberplex 3 and runner filter 4 and 5 are close to around two central tubes 1 and 7 by same direction one roll set each other, and the limit crimping is rolled into cylinder in the axial edge coated with adhesive adhesive seal of amberplex 3 and runner filter 4 and 5; Be rolled onto amberplex 3 ends, on this cylinder outer rim, form the tangential direction runner opening of two radial symmetric, respectively in the two opening parts fixing lateral flow tubes 6 and 8 that respectively is bonded and sealed, this lateral flow tubes 6 and 8 and central tube 1 and 7 be arranged in parallel; To comprise that with plastic sheeting the whole cylinder of lateral flow tubes 6 and 8 takes up sealing and fixing again; Form the film core; The film core is packed in the cylindrical housing 2; Make lateral flow tubes 6 and 8 inwalls near shell 2, fixing between the two ends of film core and the shell 2 with the adhesive casting, constitute with four and import and export the spiral wound diffusion dialysis membrane module of taking over; Be distributed with liquid collecting hole 10 and 9 respectively on the perisporium of said central tube 1,7 and lateral flow tubes 6,8; Two groups of " central tube-runner filter-lateral flow tubes " passages that are positioned at amberplex 3 both sides constitute screw type diffusion flow road 12 and dialysate runner 13 respectively.
Made spiral wound diffusion dialysis membrane module; Comprise the runner filter 4 and 5 that is distributed in amberplex 3 both sides; Wherein a side constitutes diffusion flow road 12 and takes over 6 and 1 with a pair of diffusion liquid turnover and is connected, and opposite side constitutes dialysate runner 13 and is connected with a pair of dialysate turnover adapter 7 and 8; A pair of central tube 1 and 7 to piece together is the axle center; Be close to the spiral cylinder that is rolled into each other by amberplex 3 and runner filter 4 and 5; Cylinder outer rim be bonded and sealed a pair of lateral flow tubes 6 and 8, and be arranged in parallel near the inwall and the central tube 1 and 7 of shell 2; The space that is supported by runner filter 4 and 5 constitutes the both sides that the fluid passage also is positioned at amberplex 3 all the time, and wherein a side is diffusion flow road 12, and then opposite side is a dialysate runner 13; Diffusion liquid is by wherein lateral flow tubes 6 inflows; Liquid collecting hole 9 through being distributed on its perisporium gets into runner filter 4; Flow at the spiral ecto-entad of amberplex 3 one sides, get into wherein also outflow of central tube 1 from the liquid collecting hole 10 that is distributed on central tube 1 perisporium at last; Dialysate is flowed into by another root central tube 7, and is spiral mobile from inside to outside at amberplex 3 opposite sides by liquid collecting hole 10 entering runner filters 5, gets into another root lateral flow tubes 8 and outflow through liquid collecting hole 9 at last.
In the present embodiment, central tube 1 and 7, lateral flow tubes 6 and 8 all adopts the pvc tube of acid and alkali-resistance; Its main part cross section is semicircle, and internal diameter is 20mm, and the semi-circular cross-section partial-length is identical with the width of used amberplex 3; Perisporium offers liquid collecting hole 9 and 10 respectively; The interface end cross section is circular, and liquid collecting hole gross area sum is greater than end face pipe sectional area, and two central tubes piece together the back, and it totally is circle; Fig. 3 has provided spiral wound diffusion dialysis membrane module film of the present invention, net, pipe assembling sketch map: in the present embodiment; Between central tube 1 and 7, sandwich a DF120 type dialysis cavity block (sky, Shandong dimension membrane technology Co., Ltd provides) that is of a size of 1500 * 370mm as amberplex 3 and two polypropylene runner filters 4 and 5; Make two polypropylene runner filters 4 and 5 be arranged in the both sides of amberplex 3; And termination alignment; Runner filter 4 and 5 equal in length; And be the half the of amberplex 3 total lengths,, make amberplex 3, runner filter 4,5 and central tube 1,7 bondings fixing with adhesive at amberplex 3 length directions 1/2nd places; Fig. 4 rolls the seal process sketch map for spiral wound diffusion dialysis membrane module of the present invention: keep amberplex 3 and runner filter 4,5 to be close to each other; And coat epobond epoxyn in the axial edge of amberplex 3 and runner filter 4 and 5; Constituting sealing strip 11, is axial centre with amalgamation central tube 1 and 7 together, makes runner filter 4 and 5 near liquid collecting hole; By same direction one roll set, process cylinder; Fig. 5 is the runner sketch map for the cross-sectional structure of spiral wound diffusion dialysis film core of the present invention.Shown in accompanying drawing 5; With cylinder outer rim radial symmetric direction two runner opening edges along two lateral flow tubes 6 and 8 axial sealing labels on tube wall; And openend communicates with liquid collecting hole 9; Passage constitutes diffusion flow road 12 between " central tube 1-runner filter 4-lateral flow tubes 6 ", and passage constitutes dialysate runner 13 between " central tube 7-runner filter 5-lateral flow tubes 8 ", and diffusion flow road 12 and dialysate runner 13 are positioned at the both sides of amberplex 3 all the time; According to the difference of the streaming flow type of being flowed through, two runner titles are interchangeable.The whole cylinder that will comprise lateral flow tubes 6 and 8 takes up sealing and fixing with polyvinyl chloride plastic film, constitutes the film core of this spiral wound diffusion dialysis membrane module.Be installed on the film core in the polyvinyl chloride cylindrical housing 2, the termination constitutes this spiral wound diffusion dialysis membrane module 18 with the epoxy adhesive sealing and fixing of casting.Whole assembly effective film area is 0.5m
2, appearance and size is 380 * Φ 90mm, is provided with four and imports and exports adapter, promptly spreads liquid entrance sleeve 6, diffusion liquid discharge connection 1, dialysate entrance sleeve 7 and dialysate discharge connection 8.For making things convenient for the connection in series-parallel assembling, rectangle or hexagon support can be installed on shell 2.
Under the constant situation of other conditions of present embodiment, central tube is replaced with the cross section for circular pipeline or cross section are semicircular pipeline, all can make similar spiral wound diffusion dialysis membrane module; As preferably; Adopting pipe main body part (promptly by the part of amberplex and runner filter parcel) pipeline section in the present embodiment is circular pipeline for semicircle pipe joint end section; Can make a pair of central tube piece together the back overall sectional like this for circular; To guarantee that assembly is the cylinder profile after rolling formation, central tube interface end cross section is circular, connects with convenient.
Under the constant situation of other conditions of present embodiment; With lateral flow tubes replace with the cross section for circular pipeline, cross section be semicircular pipeline, cross section be meniscate pipeline or pipe main body part (part that promptly contact) pipeline section with amberplex for semicircle or crescent pipe joint end section for the pipeline of circle, all can make similar spiral wound diffusion dialysis membrane module; As preferably; Adopting pipe main body part (part that promptly contact with amberplex) pipeline section is crescent and the pipe joint end section pipeline for circle; The crescent section part of lateral flow tubes can be close to the cylinder periphery; Conveniently with the amberplex sealing and fixing, lateral flow tubes interface end cross section is circular, connects with convenient.
Said central tube and lateral flow tubes also can be made by polyethylene, polypropylene, Kynoar or polytetrafluoroethylmaterial material except that can be by pvc material made.
Under the constant situation of other conditions, DF120 type dialysis cavity block used in the present embodiment is replaced with other plate acidproof anion-exchange membrane or alkaline-resisting cation-exchange membrane, all can make the spiral wound diffusion dialysis membrane module of analogous shape and structure.Wherein anion-exchange membrane is processed by the macromolecular material that has quaternary ammonium group usually, and the membrane module that is made by anion-exchange membrane is used for the Separation and Recovery of spent acid; And cation-exchange membrane is processed by the macromolecular material that has sulfonic acid group or hydroxy-acid group usually, and the membrane module that is made by cation-exchange membrane is used for the Separation and Recovery of salkali waste.
Described runner filter except that can by polypropylene material weave process; Also can weave and process by polyethylene, polyvinyl chloride, polyester (being used for acid recovery) or polyamide (being used for alkali reclaims) material; The length of individual runner filter can be 0.5-1 times of used individual amberplex, can adopt single or multiple lift, in order to reduce flow resistance; Directly make progress at assembly, but the thickness ecto-entad progressive additive of filter.
Circle, ellipse or rectangle can be adopted in the cross section of described shell, are preferably circle; Can be made by polyvinyl chloride, polypropylene or glass-reinforced plastic material; Consider the cost problem, be preferably pvc material.
Fig. 6 is that the optional shell of spiral wound diffusion dialysis membrane module of the present invention is taken over sketch map.Shown in accompanying drawing 6, as the alternative way that lateral flow tubes is installed in said membrane module, can be at the tangential runner opening part of two radial symmetric of described cylinder outer rim; With the terminal shaft of film to sealing label on outer casing inner wall; Or be sealed between film distal outer surface and the outer casing inner wall with sealing strip, two runner openings are separated fully, shell facies is answered the position perforate outside again; Two runner interfaces 14 and 15 are set, to substitute the effect of lateral flow tubes.
Fig. 7 is the spent acid recyclability testing arrangement sketch map of spiral wound diffusion dialysis membrane module of the present invention.Shown in accompanying drawing 7, use this spiral wound diffusion dialysis membrane module 18 to carry out spent acid and reclaim, in spent acid head tank 17 and water head tank 16, inject isopyknic spent acid and running water respectively; Flow into this spiral wound diffusion dialysis membrane module 18 by dialysate entrance sleeve 7 and diffusion liquid entrance sleeve 6 respectively; Regulate acid, discharge, the flow-rate ratio of keeping spent acid and running water within the specific limits, the maintenance liquid level; Flow out residual acid by dialysate discharge connection 8, flow out recovered acid by diffusion liquid discharge connection 1.For improving flow velocity, convenient metering and favourable exhaust, can be connected a constant flow pump or vavuum pump respectively with diffusion liquid discharge connection 1 at dialysate discharge connection 8.
The effective film area of made is 0.5m in the present embodiment
2Spiral wound diffusion dialysis membrane module be suitable for laboratory lab scale research usefulness, its loading density is 206.9m
2/ m
3And the loading density of the existing compact board frame diffusion dialysis device of same film effective area is merely 92.6m
2/ m
3
Embodiment 2: the effective film area is the preparation process of 10 square meter spiral wound diffusion dialysis membrane modules
Identical among the method for coiling that is adopted in the present embodiment and the embodiment 1; Employing is of a size of the DF120 type dialysis cavity block of 14000 * 800mm; Central tube and lateral flow tubes are the pvc tube of semi-circular cross-section, and internal diameter is Φ 25mm, and the termination converts circular cross-section to polyvinyl chloride pipe fitting bonding; The runner filter adopts polythene material, and made spiral wound diffusion dialysis membrane module effective film area is 10m
2, appearance and size is 1000 * Φ 200mm.
If the spiral wound diffusion dialysis membrane module of processing in the present embodiment is adopted many connection in series-parallel, can be more suitable for reclaiming production process in industrial waste acid, its loading density is 356.7m
2/ m
3, weight is 17.8Kg, and the production of membrane technology Co., Ltd is tieed up in existing sky, Shandong, filling 32m
2The loading density of the HKY-025 template frame diffusion dialysis device of film is merely 173.2m
2/ m
3, weight reaches 280Kg.
Embodiment 3: spiral wound diffusion dialysis membrane module reclaims industrial titanium white acid pickle
Adopt the spent acid recyclability testing arrangement of the spiral wound diffusion dialysis membrane module shown in accompanying drawing 7, use the spiral wound diffusion dialysis membrane module 18 among the embodiment 1 to carry out the test of spent acid removal process, simulate industrial titanium white acid pickle, preparation H
2SO
4/ FeSO
4The feed liquid sample, concentration is seen table 1:
Table 1FeSO
4/ H
2SO
4The concentration of feed liquid sample
In spent acid head tank 17 and water head tank 16, inject isopyknic spent acid and running water respectively, regulate acid, discharge, the flow-rate ratio of keeping spent acid and running water is about 0.9-1.2; Keep liquid level; After waiting to stablize, measure sulfuric acid, ferrous sulfate concentration in residual acid and the recovered acid, calculate H
+The rate of recovery, Fe
2+Slip etc.Adopt determination of acid-basetitration H
2SO
4Concentration adopts oxidimetry to measure Fe
2+Concentration.Test result is as shown in table 2:
Table 2FeSO
4/ H
2SO
4The diffusion dialysis result of feed liquid sample
Can find out by table 2, for FeSO
4/ H
2SO
4System, H
2SO
4The rate of recovery can reach more than 80%, simultaneously Fe
2+Slip less than 20%, the average discharge of spent acid is 0.978mL/min, that is to say, the elementary membrane area spent acid treating capacity of the spiral wound diffusion dialysis membrane module that present embodiment is used is 1.956mL/min.m
2, and, reach similar treatment effect according to experiment, small test can only reach 1.1mL/min.m with the elementary membrane area spent acid treating capacity of plate and frame diffusion dialysis device
2About, explain that the mass-transfer efficiency of this spiral wound diffusion dialysis membrane module is superior to the plate and frame diffusion dialysis device of prior art.
Embodiment 4: spiral wound diffusion dialysis membrane module reclaims iron and steel pickling waste liquid
Shown in accompanying drawing 7, use the spiral wound diffusion dialysis membrane module 18 among the embodiment 1 to simulate the test of iron and steel pickling waste liquid removal process, preparation HCl/FeCl
2The feed liquid sample, concentration is seen table 3:
Table 3HCl/FeCl
2The concentration of feed liquid sample
In spent acid head tank 17 and water head tank 16, inject isopyknic spent acid and running water respectively, regulate acid, discharge, the flow-rate ratio of keeping spent acid and running water is about 0.9-1.2; Keep liquid level; After waiting to stablize, measure hydrochloric acid, frerrous chloride concentration in residual acid and the recovered acid, calculate H
+The rate of recovery, Fe
2+Slip etc.Adopt determination of acid-basetitration HCl concentration, adopt oxidimetry to measure Fe
2+Concentration.Test result is as shown in table 4:
Table 4HCl/FeCl
2The diffusion dialysis result of feed liquid sample
Can find out by table 4, for HCl/FeCl
2System, the HCl rate of recovery can reach more than 85%, simultaneously Fe
2+Slip less than 20%, the average discharge of spent acid is 5.268mL/min, that is to say, the elementary membrane area spent acid treating capacity of the spiral wound diffusion dialysis membrane module that present embodiment is used is 10.536mL/min.m
2, and, reach similar treatment effect according to experiment, small test can only reach 3.5mL/min.m with the elementary membrane area spent acid treating capacity of plate and frame diffusion dialysis device
2, explain that the mass-transfer efficiency of this spiral wound diffusion dialysis membrane module is superior to the plate and frame diffusion dialysis device of prior art, and with respect to the FeSO among the embodiment 3
4/ H
2SO
4System is for HCl/FeCl
2System, this advantage is more obvious.
By embodiment 1, embodiment 2, embodiment 3 and embodiment 4, the loading density that can draw spiral wound diffusion dialysis membrane module of the present invention is higher, and volume is little, and is in light weight; Because two kinds of fluids can be realized spiral counter-current flow, make mass transfer force bigger, mass-transfer efficiency is higher, and elementary membrane area feed liquid treating capacity is bigger.
Claims (9)
1. spiral wound diffusion dialysis membrane module; Comprise the runner filter that is distributed in the amberplex both sides; Wherein a side constitutes diffusion flow road and takes over a pair of diffusion liquid turnover and is connected, and opposite side constitutes the dialysate runner and takes over a pair of dialysate turnover and is connected; It is characterized in that: with a pair of central tube that pieces together is the axle center; Be close to the spiral cylinder that is rolled into each other by amberplex and runner filter; The axial edge of amberplex and runner filter is by the adhesive adhesive seal; The tangential direction runner opening part of two radial symmetric is bonded and sealed respectively and fixes a lateral flow tubes on this cylinder outer rim of amberplex end, and this lateral flow tubes is arranged in parallel near the inwall and the central tube of cylindrical housing; The space that is supported by the runner filter constitutes the both sides that the fluid passage also is positioned at amberplex all the time, and wherein a side is diffusion flow road, and then opposite side is the dialysate runner; Spread liquid by wherein lateral flow tubes inflow, get into the runner filter, flow, get into wherein also outflow of central tube from the liquid collecting hole that is distributed on the central tube perisporium at last at the spiral ecto-entad of amberplex one side through the liquid collecting hole that is distributed on its perisporium; Dialysate is flowed into by another root central tube, and is spiral mobile from inside to outside at the amberplex opposite side by liquid collecting hole entering runner filter, gets into another root lateral flow tubes and outflow through liquid collecting hole at last.
2. the preparation method of the said spiral wound diffusion dialysis of claim 1 membrane module; It is characterized in that: between two central tubes, sandwich an amberplex and two runner filters; Make two runner filters be arranged in the both sides of amberplex; Maintenance is the boundary with the central tube, two ends amberplex equal in length, and amberplex, runner filter and central tube bonding is fixing; Amberplex and runner filter are close to around central tube by same direction one roll set each other, and the limit crimping is rolled into cylinder in the axial edge coated with adhesive adhesive seal of amberplex and runner filter; Be rolled onto the amberplex end, on this cylinder outer rim, form the tangential direction runner opening of two radial symmetric, respectively be bonded and sealed at two opening parts respectively and fix a lateral flow tubes, this lateral flow tubes and central tube are arranged in parallel; To comprise that with plastic sheeting the whole cylinder of lateral flow tubes takes up sealing and fixing again; Form the film core; The film core is packed in the cylindrical housing; Make the inwall of lateral flow tubes near shell, fixing between the two ends of film core and the shell with the adhesive casting, constitute with four and import and export the spiral wound diffusion dialysis membrane module of taking over; Be distributed with liquid collecting hole on the perisporium of said central tube and lateral flow tubes; Two groups of " central tube-runner filter-lateral flow tubes " passages that are positioned at the amberplex both sides constitute screw type diffusion flow road and dialysate runner respectively.
3. like the preparation method of the said spiral wound diffusion dialysis of claim 2 membrane module, be characterised in that said amberplex is plate film; Anion-exchange membrane is processed by the macromolecular material that has quaternary ammonium group; Cation-exchange membrane is processed by the macromolecular material that has sulfonic acid group or hydroxy-acid group.
4. like the preparation method of the said spiral wound diffusion dialysis of claim 2 membrane module; Be characterised in that said runner filter processed by polypropylene, polyethylene, polyvinyl chloride, polyester or polyamide material braiding; The length of individual runner filter is 0.5-1 times of used individual amberplex, adopts single or multiple lift; At the assembly thickness ecto-entad progressive additive of upper filter radially.
5. like the preparation method of the said spiral wound diffusion dialysis of claim 2 membrane module, be characterised in that it is that semicircular pipeline or pipe main body part promptly are circular pipeline by the section of tubing cross section of amberplex and runner filter parcel for semicircle pipe joint end section for pipeline, the cross section of circle that said central tube adopts the cross section.
6. like the preparation method of the said spiral wound diffusion dialysis of claim 2 membrane module; Be characterised in that said lateral flow tubes employing cross section is that semicircular pipeline, cross section are meniscate pipeline for circular pipeline, cross section, or the section of tubing cross section that the pipe main body part promptly contacts with amberplex is the pipeline of circle for semicircle or crescent pipe joint end section.
7. like the preparation method of the said spiral wound diffusion dialysis of claim 2 membrane module, be characterised in that said central tube or lateral flow tubes process by polyvinyl chloride, polyethylene, polypropylene, Kynoar or polytetrafluoroethylmaterial material.
8. like the preparation method of the said spiral wound diffusion dialysis of claim 2 membrane module, be characterised in that the cross section of said package shell is selected circle, ellipse or rectangle for use; Process by polyvinyl chloride, polypropylene or glass-reinforced plastic material.
9. like the preparation method of the said spiral wound diffusion dialysis of claim 2 membrane module; Be characterised in that the tangential runner opening part of two radial symmetric of described cylinder outer rim with the terminal shaft of film to sealing label on the inwall of cylinder shell; Or be sealed between the outer casing inner wall of film distal outer surface and cylinder shell with sealing strip; Two runner openings are separated fully, in the perforate of the relevant position of cylinder shell two runner interfaces are set again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101440424A CN101983756B (en) | 2010-04-09 | 2010-04-09 | Spiral coil type diffusion dialysis membrane assembly and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101440424A CN101983756B (en) | 2010-04-09 | 2010-04-09 | Spiral coil type diffusion dialysis membrane assembly and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101983756A CN101983756A (en) | 2011-03-09 |
| CN101983756B true CN101983756B (en) | 2012-08-29 |
Family
ID=43640922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101440424A Active CN101983756B (en) | 2010-04-09 | 2010-04-09 | Spiral coil type diffusion dialysis membrane assembly and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101983756B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202015103472U1 (en) * | 2015-07-01 | 2015-10-07 | Spiraltec Gmbh | Wound membrane module for diffusion dialysis |
| ES2824451T3 (en) * | 2015-07-30 | 2021-05-12 | Evonik Fibres Gmbh | Flexibly adaptable membrane cartridges for fluid separation |
| JP6723824B2 (en) * | 2016-05-23 | 2020-07-15 | 日東電工株式会社 | Spiral membrane module |
| CN107486022B (en) * | 2016-06-13 | 2020-07-10 | 合肥科佳高分子材料科技有限公司 | Double-pass spiral roll type diffusion dialysis membrane module and preparation method thereof |
| JP7133356B2 (en) * | 2018-05-18 | 2022-09-08 | 日東電工株式会社 | Channel spacer and spiral membrane element |
| JP7133357B2 (en) * | 2018-05-18 | 2022-09-08 | 日東電工株式会社 | Channel spacer and spiral membrane element |
| CN109534368A (en) * | 2019-01-24 | 2019-03-29 | 成都茂岩矿业有限责任公司 | A kind of sulfuric acid directly extracts the method for taking the lithium in ore and being processed as lithium hydroxide |
| CN109999673B (en) * | 2019-05-08 | 2024-02-13 | 上海凯鑫分离技术股份有限公司 | Rolling type membrane element |
| CN114920374A (en) * | 2022-06-01 | 2022-08-19 | 江苏皕成环保科技有限公司 | Acid sludge and waste acid resource recycling and disposal equipment |
| CN115253692B (en) * | 2022-06-22 | 2023-12-01 | 沃顿科技股份有限公司 | Membrane element, production method of membrane element and rolled membrane assembly |
| CN115893729B (en) * | 2022-11-21 | 2024-09-13 | 深圳市互成自动化设备有限公司 | Automatic change online paint removal solution recovery plant |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1232718A (en) * | 1998-03-20 | 1999-10-27 | 东丽株式会社 | Fluid separation element assembly |
| US20050194317A1 (en) * | 2004-03-05 | 2005-09-08 | Norio Ikeyama | Filtration devices with embedded radio frequency identification (RFID) tags |
| CN1676203A (en) * | 2003-10-02 | 2005-10-05 | 日东电工株式会社 | Spiral membrane element and method of manufacturing the same |
| CN101332414A (en) * | 2004-03-26 | 2008-12-31 | 日东电工株式会社 | Spiral type separation membrane element |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000354742A (en) * | 1999-04-13 | 2000-12-26 | Nitto Denko Corp | Spiral type separation membrane element |
-
2010
- 2010-04-09 CN CN2010101440424A patent/CN101983756B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1232718A (en) * | 1998-03-20 | 1999-10-27 | 东丽株式会社 | Fluid separation element assembly |
| CN1676203A (en) * | 2003-10-02 | 2005-10-05 | 日东电工株式会社 | Spiral membrane element and method of manufacturing the same |
| US20050194317A1 (en) * | 2004-03-05 | 2005-09-08 | Norio Ikeyama | Filtration devices with embedded radio frequency identification (RFID) tags |
| CN101332414A (en) * | 2004-03-26 | 2008-12-31 | 日东电工株式会社 | Spiral type separation membrane element |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2000-354742A 2000.12.26 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101983756A (en) | 2011-03-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101983756B (en) | Spiral coil type diffusion dialysis membrane assembly and preparation method thereof | |
| CN106110894A (en) | Spiral wound reverse-osmosis membrane element, filter element and anti-penetration water purifier | |
| CN102583841B (en) | Diffusion and electrodialysis integrated treatment method and device for acid waste liquid containing metallic ion | |
| CN104689718B (en) | Dielectrophoresis butterfly tube type membrane component | |
| CN206045810U (en) | Spiral wound reverse-osmosis membrane element, filter element and anti-penetration water purifier | |
| WO2006047945A1 (en) | A turn-back flow edi | |
| CN206103724U (en) | Spiral wound type reverse osmosis membrane technology and reverse osmosis water purifier | |
| CN104162368B (en) | Film based on electrochemistry and magnetic bead technology damages detection method and device | |
| CN106159188B (en) | Through type liquid injection method and device for lithium ion battery | |
| CN201737765U (en) | Flat membrane element being capable of backflushing | |
| CN107486022B (en) | Double-pass spiral roll type diffusion dialysis membrane module and preparation method thereof | |
| CN106219681A (en) | Reverse-osmosis membrane element, filter element and anti-penetration water purifier | |
| CN2327675Y (en) | Screw-roll style electric desalter | |
| CN205412687U (en) | Laboratory is with miniature positive osmotic membrane subassembly | |
| CN206103722U (en) | Reverse osmosis membrane element and filter element | |
| CN206045809U (en) | Central canal group and spiral wound reverse-osmosis membrane element | |
| CN207986855U (en) | A kind of integrating water route plate | |
| CN204602004U (en) | A kind of dielectrophoresis in-line arrangement membrane filtration separator | |
| CN212076521U (en) | Spiral roll type electric desalting water treatment system | |
| CN203043852U (en) | Flat plate type dialyzer | |
| CN103551039A (en) | Spiral-wound membrane element winding method | |
| CN206156804U (en) | Reverse osmosis membrane technology , filter core and reverse osmosis water purifier | |
| CN202011920U (en) | Zero-emission recycling system for eletrodeposited chromium washing wastewater | |
| CN206692388U (en) | A kind of acid-restoring plant | |
| CN206965528U (en) | Reverse osmosis water Preparation equipment and cleaning system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: USTC HOLDINGS CO., LTD. Free format text: FORMER OWNER: UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA Effective date: 20141029 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20141029 Address after: 230026, No. 19, South, Hi Tech Plaza, 92 Jinzhai Road, Anhui, Hefei Patentee after: USTC Asset Management Co., Ltd. Address before: 230026 Jinzhai Road, Anhui, China, No. 96, No. Patentee before: University of Science and Technology of China |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151105 Address after: 230601, Anhui province Hefei busy road industrial investment standing industrial Plaza B-2 Patentee after: Hefei Chemjoy Polymer Materials Science and Technology Co., Ltd. Address before: 230026, No. 19, South, Hi Tech Plaza, 92 Jinzhai Road, Anhui, Hefei Patentee before: USTC Asset Management Co., Ltd. |