CN1033491C - Filtration membrane cartridge - Google Patents
Filtration membrane cartridge Download PDFInfo
- Publication number
- CN1033491C CN1033491C CN 93120829 CN93120829A CN1033491C CN 1033491 C CN1033491 C CN 1033491C CN 93120829 CN93120829 CN 93120829 CN 93120829 A CN93120829 A CN 93120829A CN 1033491 C CN1033491 C CN 1033491C
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- China
- Prior art keywords
- filter membrane
- support plate
- welding area
- filtration membrane
- membrane
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- Separation Using Semi-Permeable Membranes (AREA)
Abstract
A pair of filtering membranes are solidly bonded to a membrane-supporting plate by fusibly bonding each of the filtering membranes to the resin membrane-supporting plate. A main fusible domain is formed along peripheral edges of each of the filtering membrane. In addition, a plurality of subordinate fusible domains are intermittently formed in plural locations on one side or on both sides of the main fusible domain. By virtue of the above structure, bonding strength is secured by the main fusible domain, and yet, bonding strength is reinforced by locally provided subordinate fusible domains. A channel is formed in the membrane-supporting plate so that permeated liquid can swiftly flow through the filtering system. In addition, a plurality of projections are formed on peripheral edges of a filtration membrane cartridge facing inner surface of each gutter formed inside of each slit plate by way of causing respective projections to slidably come into contact with the inner surface of the gutter. This in turn effectively minimizes frictional force between the filtration membrane cartridge and the gutter to facilitate operator to easily insert and remove the filtration membrane cartridge into and from the gutter of the slit plate.
Description
The filtration membrane cartridge that the present invention relates to use in the Separation of Solid and Liquid more particularly, relates to the filtration membrane cartridge as the most important part of filter membrane separator.
As shown in Figure 1, typical normal film separator is provided with filtering film component 3, and assembly 3 is immersed in the stoste in the stoste treatment trough.Common filtering film component 3 is equipped with many filtration membrane cartridges 5, is arranged in the upper body 4 so that preset space length is vertical in parallel to each other.In addition, gas supply assembly 7 is located in the lower case 6, carries gas such as oxygen, air or nitrogen to the stoste according to set purposes.Be placed on each filtration membrane cartridge 5 inside in the filtering film component 3 and be provided with the saturating liquid passage of the arm 9 that is connected in suction pipe 8, be used to draw the liquid that sees through, an end of suction pipe 8 links to each other with suction pumps.
When common membrane separation device 1 work, suction pumps 10 produces negative pressure, acts on all and is placed on the filtration membrane cartridge 5 in the filtering film component 3, so that suitably draw the liquid that sees through.On the other hand, external air source is carried gas such as oxygen or air (as shown by arrow A) to gas supply assembly 7, thereby makes gas supply assembly 7 upwards spray bubble stream in the space between adjacent filtration membrane cartridge 5 from the bottom of filtering film component 3.Upwards the bubble that flows produces the gas lift effect, produces slipstream along face, and described slipstream will be cleared away any deposit on the face.
In the prior art, each filtration membrane cartridge 5 that is placed in the membrane separation device 1 is inserted in the groove, and groove is arranged in every block of mounted split pattern, and template is vertical to be arranged in the upper body 4.But, because the inner surface of each filtration membrane cartridge 5 and every groove still is in contact with one another on sizable surface area, so between the surface, produce friction overslaugh operator successfully with in each filtration membrane cartridge insertion groove or from groove, take out.
In general, the basic structure of common filtration membrane cartridge 5 is, the periphery of organic filter membrane is bonded on the filter membrane support plate, thereby it is flat that organic filter membrane is fixed on, on the surface of the filter membrane support plate of rectangle.On the other hand, when filter membrane being fixed on the filter membrane support plate with bonding agent, adhesive strength is the intensity with selected bonding agent, and durability and chemical stability change, and therefore, filter membrane may unexpectedly come off from the filter membrane support plate.
Therefore, the purpose of this invention is to provide a kind of improved filtration membrane cartridge, it can successfully insert filtering film component and therefrom take out, and prevents to come off from the filter membrane support plate, thereby has overcome above-mentioned the problems of the prior art fully.
To achieve these goals, in according to improved filtration membrane cartridge of the present invention, every filter membrane is arranged on two surfaces of the filter membrane support plate that resin makes, between each edge of filter membrane and filter membrane support plate fixedly is by making one of both or both fusions, thereby realizes between the two bonding.
According to said structure of the present invention,, thereby one of filter membrane and filter membrane support plate or both fusing is fixed on every filter membrane on the corresponding filter membrane support plate reliably by hot melt or ultrasonic wave radiation.
In a kind of better structure according to the support of filter membrane of the present invention, along filter membrane periphery and the linear main welding area that forms with along carrying out burning-on method on the interrupted secondary welding area that forms, many positions of one or both sides, main welding area, thereby every filter membrane is bonded on the corresponding filter membrane support plate.
According to above-mentioned recommended structure of the present invention, the main bonding strength between filter membrane and corresponding filter membrane support plate provides by main welding area, and the local welding effect of carrying out in many secondary welding areas has strengthened bonding strength in addition.
According to above-mentioned recommended structure of the present invention, the filter membrane support plate has a groove that sees through liquid, and this groove is open to that surface in the face of corresponding filter membrane of filter membrane support plate.
According to above-mentioned recommended structure of the present invention, when even the suction function that forms by imbibition operation when filter membrane closely is pressed on the corresponding filter membrane support plate, the liquid that sees through also can flow through many grooves that are open to filter membrane support plate surface all the time reliably, thereby makes the liquid that sees through can promptly flow through filtration system.
According to the better recommended structure of filtration membrane cartridge of the present invention, a pair of partition is inserted between filter membrane and the corresponding filter membrane support plate.
According to above-mentioned recommended structure of the present invention, each partition forms predetermined space on corresponding filter membrane support plate, is supporting corresponding filter membrane support plate, thereby is making the liquid that leaches from filter membrane promptly flow through above-mentioned predetermined space.
For achieving the above object, the invention provides a kind of improved filtration membrane cartridge.Each of the filtration membrane cartridge of the present invention of predetermined number all is inserted in the corresponding groove on the mounted split pattern that is provided with in the filtering film component.Specifically, the invention provides the many projectioies on filtration membrane cartridge periphery (relative), these projectioies can be slided to the inner surface of groove on the mounted split pattern contact with the inner surface of the groove of mounted split pattern.
According to above-mentioned recommended structure of the present invention, no matter when filtration membrane cartridge is inserted corresponding groove or therefrom take out, filtration membrane cartridge all can rely on the effect of many projectioies on the filtration membrane cartridge to slide to the inner surface of respective grooves on the mounted split pattern and contact.This has just dwindled the contact area of support and groove, thereby has reduced frictional force, makes the operator be easy to filtration membrane cartridge be inserted filtering film component or therefrom take out.
Fig. 1 is the stereogram according to the filtration membrane cartridge of one embodiment of the present of invention;
Fig. 2 is the plane of the structure that filtration membrane cartridge is held in place according to one embodiment of the present of invention;
Fig. 3 is the front view of filtration membrane cartridge embodiment illustrated in fig. 2;
Fig. 4 is the side view of filtration membrane cartridge embodiment illustrated in fig. 2;
Fig. 5 is the cutaway view along the filtration membrane cartridge of A-A line among Fig. 3;
Fig. 6 is the cutaway view along the filtration membrane cartridge of B-B line among Fig. 5;
Fig. 7 is the signal figure of the groove that forms on the filter membrane support plate according to one embodiment of the invention;
Fig. 8 is the another kind signal figure of the groove that forms on the filter membrane support plate according to another embodiment of the present invention;
Fig. 9 is the local amplification view according to filtration membrane cartridge of the present invention;
Cutaway view shown in Figure 10 is represented filter membrane is placed on another example on the corresponding filter membrane support plate;
Figure 11 is the front view that forms the another kind of structure of groove on the filter membrane support plate;
Figure 12 is the cutaway view along the filter membrane support plate of C-C line among Figure 11;
Figure 13 is the cutaway view along the filter membrane support plate of D-D line among Figure 11;
Figure 14 is the cutaway view along the filter membrane support plate of E-E line among Figure 11;
Figure 15 explanation is adhered to method on the corresponding filter membrane support plate with filter membrane;
Figure 16 is the signal figure according to the structure of the welding area on the filtration membrane cartridge of the present invention;
Figure 17 is the signal figure according to the another kind of structure of the welding area on the filtration membrane cartridge of the present invention;
Figure 18 is the signal figure according to the another kind of structure of the welding area on the filtration membrane cartridge of the present invention; And
Figure 19 explanation is adhered to another kind of method on the corresponding filter membrane support plate with filter membrane.
Consult the filtration membrane cartridge that accompanying drawing has been described in detail according to the improvement of one embodiment of the present of invention now.The part that has with Fig. 1 same numeral has identical functions, is no longer given unnecessary details.
Consult Fig. 2 to 9 now, many filtration membrane cartridges 5 are fixed by many corresponding mounted split patterns 11, and template 11 is contained in the upper body 4 of filtering film component 3.More particularly, as shown in Figure 1, on every block of mounted split pattern 11, form many grooves 12 with predetermined space.In the corresponding groove 12 of the vertical in parallel to each other insertion of many filtration membrane cartridges 5.
Each filtration membrane cartridge has a kind of structure of novelty, this structure comprises a pair of filter membrane 52, every filter membrane 52 is made of organic film such as ultrafiltration membrane or microfiltration film, is placed on the plane of being made by resin such as PVC, on two surfaces of rectangle filter membrane support plate 51.A pair of filter membrane 52 is by implementing to be fixed in corresponding filter membrane support plate around the burning-on method.
Though in the present embodiment filter membrane 52 is placed on two surfaces of corresponding filter membrane support plate 51,, as shown in figure 10, a single bag shape filter membrane 52 also can fully be coated on the filter membrane support plate 51.Hereinafter will describe filter membrane 52 will be bonded in novel method on the corresponding filter membrane support plate 51.
The passage of the liquid that sees through of filter membrane 52 inboards links to each other with the arm 9 of suction pipe 8, so that a side draught of the filter membrane support plate 51 in filtration membrane cartridge 5 is got the liquid that sees through.One suction pumps 10 produces negative pressure by suction pipe 8, and stoste is filtered by these filtration membrane cartridges whereby.
On the periphery of filter membrane support plate 51, be provided with many protrudingly 53, more particularly,, on the side relative above-mentioned projection be set with the groove 12 of mounted split pattern 11 in pair of parallel with predetermined interval.Projection 53 is slided to and the inner surface of relevant groove 12 state that contacts, thereby make many filtration membrane cartridges 5 be fixed in filtering film component 3.
These projectioies 53 all are Sui's circles on filtration membrane cartridge 5 vertical.For example, in order to make long 1000mm, the filtration membrane cartridge 5 of wide 500mm will be provided with major diameter 5mm on the filtration membrane cartridge 5, and minor axis 1 is to 2mm, and the projection 53 of high 0.5mm will be provided with 6 to 20 such projectioies on each surface of filtration membrane cartridge 5.
Because the inner surface of these projectioies 53 and groove 12 needs only on the limited contact area and is in contact with one another, it is very little to rub, thereby the operator is easy to each filtration membrane cartridge 5 be inserted the respective grooves 12 of mounted split pattern 11 and therefrom take out.
Even filtration membrane cartridge 5 or mounted split pattern 11 deform, if perhaps filtration membrane cartridge 5 is not enough because of the width of the respective grooves 12 of mounted split pattern 11, can not easily insert or extract, as long as these projectioies of scraping just can make filtration membrane cartridge 2 match well with groove 12.
The filter membrane support plate 51 of filtration membrane cartridge 5 is provided with passage 54, makes the liquid outflow filter film 52 that sees through.Passage 54 comprises the perhaps many seam 54b of fine-structure mesh groove 54a, and perhaps groove 54a and seam 54b have concurrently.Fine-structure mesh groove 54a and seam 54b have both at the same time in the present embodiment.
Fine-structure mesh groove 5a forms on the two sides of filter membrane support plate 51.On structure, be to reticulate by many thin linear groove intercoordinations.On the metal die of molded filter membrane support plate 51, use etch process and formed fine-structure mesh groove 54a.Above-mentioned thin linear groove 54a links to each other with the sealing periphery of seam 54b.Shown in Fig. 7 and 8, the level that above-mentioned linear groove 54a can be parallel to the film support plate 51 of rectangle becomes the obtuse angle setting with vertical side or with it.Though present embodiment uses fine-structure mesh groove 54a, when using with seam 54b, these fine-structure mesh grooves 54a can be arranged to striated pattern.Every stria 54a is dark less than 1mm, and is wide less than 1mm, and the interval between the adjacent slot 54a is less than 5mm.On the other hand, every seam 54b has proper depth, is open to the surface of film support plate 51, be arranged in parallel with the vertical side of film support plate 51.Shown in Figure 11 to 14, these seams 54b can extend on the thickness direction of film support plate 51 and form.Approaching an end and can form the liquid 55 that a pond sees through along the position of the width of film support plate 51.Liquid pool 55 links to each other with seam 54b with fine-structure mesh groove 54a at the opening peripheral region on the surface of film support plate 51.Upper end at film support plate 51 forms suction inlet 56, can link to each other with liquid pool 55.The arm 9 of suction pipe 8 links to each other with suction inlet 56.
When starting suction pumps 10, by suction pipe 8 when filtration membrane cartridge 5 applies negative pressure, the liquid that sees through is inhaled into filtration membrane cartridge 5, and the liquid that appears from filter membrane 52 flows into liquid pool 55 by fine-structure mesh groove 54a and the film support plate 51 inboard seam 54b that form then, flows into the arm 9 of suction pipe 8 from suction inlet 56.
When said process carries out, even because of suction function, filter membrane 52 close attachment are in film support plate 51, owing to can guarantee that by fine-structure mesh groove 54a and seam 54b the liquid that sees through flows the lip-deep of film support plate 51, thereby the liquid that sees through can easily flow through the space between filter membrane 52 and the filter membrane support plate 51.Particularly when being formed with seam 54b, the distance that the liquid that sees through flows in fine-structure mesh groove 54a shortens, and this helps flowing smoothly of liquid.
Between film support plate 51 and filter membrane 52, be provided with a pair of dividing plate 57.The liquid that every dividing plate 57 provides the gap to be beneficial to see through between film support plate 51 and filter membrane 52 successfully flows through betwixt.Every dividing plate 57 is made of felt or plastic wire or wire netting.The shape of every filter membrane 52 is greater than the shape of dividing plate 57, thereby is enough to coat fully dividing plate 57, and therefore, dividing plate 57 can not directly contact with stoste.
According to said structure,, thereby can promptly flow through above-mentioned predetermined space from the liquid that filter membrane 52 appears owing to thereby dividing plate 57 opposing is drawn the negative pressure that the operation of the liquid that sees through causes and supported filter membrane 52 (imbibition is to be undertaken by the predetermined space that forms on the film support plate 51).When implementing this example, dividing plate 57 is with passage 4 uses of the liquid that sees through.Yet, only use dividing plate 57 and the embodiment of the passage 54 of the liquid that need not see through also is feasible.
The method that filter membrane 52 is fused to filter membrane support plate 51 is described below.As shown in figure 15, film support plate 51, filter membrane 52 and dividing plate 57 are overlapping successively.In the present embodiment, filter membrane 52 is as supporting mass, constitutes by the thermoplasticity nonwoven 52a of saturated polyester resin with as the film of superficial layer 52b is whole each other.Yet filter membrane 52 also can be the film that does not have nonwoven 52a.For filtration membrane cartridge embodiment of the present invention, dividing plate 57 is not always to be absolutely necessary.
After overlapping above-mentioned part, place the precalculated position on the filter membrane 52 so that ultrasonic wave takes place in vibration on one loudspeaker 13.Can use rotary loudspeaker 13, also can use static loudspeaker 13, when disposing fine and close filter membrane 52, use rotary loudspeaker 13.In the process that moves on filter membrane 52, ultrasonic wave takes place in loudspeaker 13, and filter membrane 52 is fused to film support plate 51.
As previously mentioned, owing to made by saturated polyester resin as the nonwoven 52a of the substrate of supporting filter film 52, nonwoven 52a (for example) is being higher than fusion under 140 ℃ the temperature.On the other hand, when filter membrane support plate 51 is when being made by ABS resin, under the temperature that is lower than nonwoven 52a fusing point, melt.Therefore, when the temperature that applies was lower than 140 ℃, 51 fusings of film support plate made the resinous principle of fusing enter nonwoven 52a, therefore, filter membrane 52 are bonded on the filter membrane support plate 51.
When being exposed to when being higher than 140 ℃ temperature, filter membrane support plate 51 and nonwoven 52a melt and welding mutually.
Even when when not having nonwoven 52a and filter membrane 52 to heat-treat, filter membrane 52 fusing and being welded together with filter membrane support plate 51 reliably the time by means of the molten resin material of filter membrane support plate 51 or by filter membrane support plate 51 and filter membrane 52.
Using ultrasonic wave to carry out in the process of thermal welding, the resin part is easy to zone melting internally, and therefore, loudspeaker 13 preferably start by the heatproof zone that is placed on the filter membrane 52.Except using hyperacoustic said method, also can use the local heat treatmet method, make the filter membrane part be fused to filter membrane support plate 51.
As mentioned above, can make the filter membrane support plate 51 of plastics and have the filter membrane 52 of plastic-substrates by heat treatment or ultrasonic wave radiation, or both one of fusing and welding mutually, thereby make filter membrane 52 can be bonded in filter membrane support plate 51 reliably.
Shown in Figure 16 and 17, the welding mutually of filter membrane support plate 51 and filter membrane 52 by the secondary welding area 14b of the main welding area 14a of and linear setting circumferential and or the interrupted setting of bilateral one-sided at main welding area 14a along the filter membrane periphery.
It is in order to guarantee the water-stop effect and basic adhesive strength to be provided that main welding area 14a is set.On the other hand, interrupted secondary welding area is set at many positions is in order to prevent the filter membrane shrinkage, but secondary welding area 14b has also increased the adhesive strength between filter membrane support plate 51 and the filter membrane 52.In order to save heat energy and bonding better, main welding area 14a preferably has narrow width.Can make showing of filter membrane 52 melt part at the secondary welding area 14b of the arranged outside of main welding area 14a and be protected, thereby the molten part that can prevent filter membrane 52 fully is protected, thereby can prevent fully that filter membrane 52 from coming off from filter membrane support plate 51.However, do not worrying under the situation that filter membrane 52 comes off along periphery, can be set to the welding area by a middle body at filter membrane 52.As shown in figure 18, secondary welding area 14b not only can be interrupted linear pattern, also can be arranged to various figures, as the figure with arranged at predetermined intervals.
For example, as shown in figure 19, before the welding of carrying out between filter membrane support plate 51 and the filter membrane 52, can on film support plate 51, integrally form the regional 51a of the weldable of many projectioies.When enforcement alkane connects, during beginning, place filter membrane, make it cover the weldable district 51a of projection fully, then, make protruding weldable district fusion, with compressing burning-on method filter membrane support plate 51 is welding together with filter membrane 52 on the zone of local melting then by heat treatment or ultrasonic wave radiation.
Owing to designed said structure, prevented the major part fusing of filter membrane support plate 51, prevent the distortion of melting range periphery and the distortion of filter membrane, and filter membrane can be bonded in filter membrane support plate 51 reliably.The weldable district 51 of above-mentioned projection also can be shaped as the shape different with film support plate 51, for example is bar-shaped.
Claims (4)
1. one group of filtration membrane cartridge is immersed in the stoste treatment trough and uses, and each described support comprises:
A resole resin filter membrane support plate,
One is arranged on the lip-deep filter membrane of described resin filter film support plate; It is characterized in that:
Described filter membrane support plate have many at it in the face of what form on the surface of described filter membrane, see through the interconnective straight-line groove and the passage of liquid;
Described filter membrane has at its nonwoven supporting member against a side of filter membrane support plate, and an infiltration skim in the surface of described supporting member is to form filter membrane;
Described filter membrane forms effective filtering area of a no described major and minor welding area by main welding area and a plurality of secondary welding area, thus on periphery with the welding mutually of described filter membrane support plate,
Described main welding area with contiguous but with the filter membrane periphery at interval continuous lines and around form, described a plurality of secondary welding area with along and the dashed line that is adjacent to main welding area form discontinuously, the resin of described resin filter film support plate and the nonwoven of filter membrane are welded together, and filter membrane is bonded on the filter membrane support plate.
2. structure as claimed in claim 1 is characterized in that: the line of described secondary welding area forms between the periphery of described main welding area and filter membrane.
3. structure as claimed in claim 1 is characterized in that: the line of described secondary welding area deviates from the filter membrane periphery and forms along the side of described main welding area.
4. structure as claimed in claim 3 is characterized in that: described secondary welding area also forms discontinuously with second dashed line between described main welding area and filter membrane periphery.
Applications Claiming Priority (10)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4-334791 | 1992-12-16 | ||
| JP334791/92 | 1992-12-16 | ||
| JP33479192A JP2897799B2 (en) | 1992-12-16 | 1992-12-16 | Filtration membrane module |
| JP5-008000 | 1993-01-21 | ||
| JP008000/93 | 1993-01-21 | ||
| JP800093A JP2943832B2 (en) | 1993-01-21 | 1993-01-21 | Filtration membrane module |
| JP176317/93 | 1993-07-16 | ||
| JP176318/93 | 1993-07-16 | ||
| JP5-176317 | 1993-07-16 | ||
| JP5-176318 | 1993-07-16 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1091990A CN1091990A (en) | 1994-09-14 |
| CN1033491C true CN1033491C (en) | 1996-12-11 |
Family
ID=26342416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93120829 Expired - Fee Related CN1033491C (en) | 1992-12-16 | 1993-12-15 | Filtration membrane cartridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1033491C (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4522773B2 (en) * | 2004-07-20 | 2010-08-11 | 株式会社パウレック | Coating equipment |
| WO2009104750A1 (en) * | 2008-02-21 | 2009-08-27 | 日東電工株式会社 | Pressure vessel for membrane element, membrane filtration apparatus equipped with the pressure vessel for membrane element, and method for manufacturing membrane filtration |
| AU2010291267B2 (en) * | 2009-09-03 | 2016-07-14 | Vlaamse Instelling Voor Technologisch Onderzoek (Vito) Nv | Frame for supporting a filter membrane |
| EP2867175A4 (en) * | 2012-07-02 | 2016-06-22 | Dead Sea Works Ltd | Submerged plate forward osmosis systems |
| DK178159B1 (en) * | 2014-02-03 | 2015-07-06 | Sani Membranes Aps | Filter plate assembly |
| JP5967740B1 (en) * | 2015-07-30 | 2016-08-10 | 株式会社リディアワークス | Sheet spreading device |
| EP3436417A4 (en) | 2016-03-22 | 2020-01-01 | Dead Sea Works Ltd. | Spherical fertilizers and process for the production thereof |
| CN109843834A (en) | 2016-10-22 | 2019-06-04 | 死海工程有限公司 | Binder for fertilizer granulation |
| GB2572295B (en) | 2016-12-17 | 2022-10-26 | Dead Sea Works Ltd | A process for the recovery of SOP as a product of reaction between sulphate bearing mineral and carnallite |
| EP3579957B1 (en) | 2017-02-10 | 2024-04-03 | ICL Europe Cooperatief U.A. | Polyhalite granulation process |
-
1993
- 1993-12-15 CN CN 93120829 patent/CN1033491C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1091990A (en) | 1994-09-14 |
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| 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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 19961211 Termination date: 20101215 |