CN102389661A - Hinge filtering component and filtering system - Google Patents
Hinge filtering component and filtering system Download PDFInfo
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- CN102389661A CN102389661A CN201110296781XA CN201110296781A CN102389661A CN 102389661 A CN102389661 A CN 102389661A CN 201110296781X A CN201110296781X A CN 201110296781XA CN 201110296781 A CN201110296781 A CN 201110296781A CN 102389661 A CN102389661 A CN 102389661A
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Abstract
The invention discloses a hinge filtering component and a filtering system. The hinge filtering component comprises an outer cylinder, an inner cylinder and a filtering layer, wherein a filtering material is folded into a corrugated layer encircling the exterior of the inner cylinder, thereby forming the filtering layer; the filtering material is composed of two layers of soft filtering net frames and a filtering film or filtering cloth clamped between the two layers of the soft filtering net frames; and all waved hinges of the filtering material are tightly wound on the inner cylinder along a same direction. The filtering system comprises the hinge filtering component. Two filtering modes of positive filtering and negative filtering can be realized by the hinge filtering component provided by the invention. The two filtering modes are alternatively used, so that a stressed direction of the filtering layer is variable. The positive filtering and the negative filtering are realized, so that a film-blocked phenomenon or an irrecoverable film deformation problem caused by long-term filtering along a same direction is avoided. In the filtering system provided by the invention, a process of halting and connecting an external water source is unnecessary and a backwash operation is simple.
Description
Technical field
The present invention relates to a kind of separator assembly, particularly a kind of hinged joint filter assemblies the invention still further relates to a kind of filtration system.
Background technology
Along with the continuous revolution of industry and improving constantly of living standard; Implementation of sustainable development, humane ecological environment requires increasingly high, so the conserve water resource; Sanitary water; Reducing the water pollution is primary strategic issue in the present age, therefore can solve trade effluent, domestic water, and useful, effective filtration problem of commercial production link water is eternal research theme.The filter that exists at present mainly contains membrane separation device, vacuum-type drum filter, band filter, flame filter press and medium filter etc.
Membrane separation device is to be separating medium with the film, and when having certain motive force (as: pressure differential, concentration difference, potential difference etc.) in the film both sides, the material liquid component optionally sees through film, with the purpose that reaches separation, purifies.
The liquid film separation process mainly is meant micro-filtration, ultrafiltration, nanofiltration and reverse osmosis process.These force film separation processes can be used for solution purification, catch and get, separate and concentrate.From micro-filtration, ultrafiltration, nanofiltration and counter-infiltration, the separated molecule or the size of particle are more and more littler, so membrane aperture must be more and more littler, and this resistance to mass tranfer that also means film increases, so operating pressure also is to increase gradually, to obtain similar flux.
Sum up membrane separation technique and be universally acknowledged high in technological content, be widely used the new separation technology subject that development prospect is bright; The liquid film separation process is that other isolation technics can not be substituted, but should see that also membrane separation technique is not omnipotent, and its application is restricted always; The difficult problem that isolation technics will be captured is that 1 investment is big, and 2 maintenance difficulty are big, and 3 change membrane module cycle weak point; 4 energy consumptions are high, and 5 concentrates can't be handled, and the manufacture difficulty of 6 membrane modules is big; Most dependence on import, 7 pairs of filtered fluids require high.Such as aspect the trade effluent processing, the treatment technology that generally adopts now, or biochemical process treatment technology are even membrane technology is used the effect of also just adding a crucial touch to some extent.Aspect the industrial process waters preliminary treatment; Handle the main at present exchange resin method of using like demineralized water, neither membrane processing method aspect the processing of people's domestic water, the isolated water quality of facial mask technology can reach pure water technology full maturity; But; Why can not be in above-mentioned three big field extensive uses, have only a simple significantly reason " cost is high " and a countless person of noble aspirations drops into a large amount of financial resources and material resources aspect the application of membrane separation technology trade effluent, though make progress; But, also do not have ripe general-purpose industrial sewage physics mechanical treatment process (film is main method) technical scheme to handle trade effluent.
Vacuum-type drum filter is the special equipment of industry such as starch, mainly contains two kinds: a kind of is to reclaim solid matter equipment, and as reclaiming material such as starch, the Separation of Solid and Liquid difficulty is big; Second kind is precoater, make precoating paint by materials such as diatomite, perlites, just can obtain qualified filtered fluid, has increased the filtration cost so greatly.From filtering cost and the filtrate difficulty being required, it is real that its application is restricted.
Band filter mainly is the solid effect of removing of industry such as trade effluent, and it mainly acts on is the solid content that reduces in the filtered fluid, and filtered fluid is of poor quality, can not reuse, can only handle discharging again by products for further.
The flame filter press application is wider, and the filtered fluid quality of processing can satisfy different processes and produce needs, and output and sales volume are very big; But it exists shortcoming also indubitable; Can not realize cleaner production, equipment volume is big, and project installation and floor space are huge; Cost of use is high, comprises that power consumption is high, short automation mechanized operation difficulty of filter cloth replacement cycle is high, investment is big etc.
Medium filter (representational is sand filter such as sand cylinder) is that cost is low, technology maturation, applied range, the time-honored a kind of filter of removing suspension of use.Its shortcoming is that filter efficiency is low, filtering accuracy is low, the backwash water consumption is big, number of times is high, leakiness sand; The sand cylinder life cycle of common miniaturization is short, operation is restive, power consumption is higher; No matter be that sand cylinder or sand pond all are that volume is very big, so the project occupation of land area is big, project installation is complicated, construction costs is huge.
In sum, the continuous development along with industrial technology no matter be membrane technology or medium filter etc., all exposes its inapplicable shortcoming, must improve and improve, and will have the product of innovation to replace it in other words, and this is the needs of development.
Chinese patent numbers 200910258565.9 discloses a kind of barrel type filtering assembly; All dense water layers and inner barrel are communicated with by order from outside to inside successively from beginning to end; Outer cylinder body is provided with dense water inlet, and inner barrel is provided with dense water out, and the concentrated stream road is very long; Filter efficiency is low more more backward in the moving process of concentrated stream, influences integral filter efficient.And filter course is made difficulty, volume is big, consumptive material is many, system cost is high.The concentrated stream road is greater than 8000mm, and width of flow path is less than 5mm, because width of flow path is greater than 5mm, flow channel length increases too many less than the 8000mm system cost, the user can't be accepted, so caused backwash impurities removal difficulty to increase; Effectively shorten filter cycle, dirty blocking up speeds up, and causes filter efficiency to reduce very soon, and the removal of impurities ability descends fast, and energy consumption improves.Have only the backwash of increasing number of times, strengthen intensity, make the operation change complicated.General expenses rises and could guarantee normal operation.
Chinese patent numbers 2010206178679 discloses the laminar filter assemblies.The concentrated stream road is less than 2500mm, but the expansion of filtered fluid runner is the sack of an openings at one side, and the filtered fluid flow channel length is greater than 8000mm, and width is less than 3mm, and this technical scheme adapts to cross-flow filtration most, cleans the water source, and water flux is lower than 200L/ m2. h.Can only realize a direction filtration, screen pack can only adopt common material to rise and support and turbulent flow.Particularly filter assemblies sealed at both ends difficulty of processing big, be prone to out leakage.
Summary of the invention
The technical problem that the present invention will solve is: a kind of hinged joint filter assemblies is provided, makes it be fit to positive and negative two filter types, filter course long service life.The present invention also provides a kind of filtration system that adopts aforementioned filter assemblies.
In order to solve the problems of the technologies described above; Hinged joint filter assemblies of the present invention; Comprise outer cylinder body, inner barrel and be arranged on outer cylinder body and inner barrel between filter course, described filter course be looped around inner barrel outer be folded into corrugated filtering material, filtering material is two-layer soft filtration rack and is clipped in filter membrane or the filter cloth between the two-layer filtration rack; All ripple leaves of filtering material closely are wrapped on the inner barrel along same direction; The flowing water passage that has ring-type between outer cylinder body and the filter course respectively is provided with an intake-outlet on outer cylinder body and the inner barrel, on the inner barrel filter course around part be provided with in the pipe water hole.
For the two ends that prevent filter course to the filter course filtered fluid that leaks outside, the sealed at both ends of described filter course is fixed on the inner barrel.
In order to realize the concussion cleaning to filter course, improve cleaning performance, respectively be provided with an air inlet on said outer cylinder body and the inner barrel.
For easy for installation; One end of described inner barrel reaches outside the outer cylinder body; The port of the external part of inner barrel is the intake-outlet of inner barrel; Air inlet on the inner barrel is located on the external part of inner barrel, and the air inlet of outer cylinder body and intake-outlet are positioned on the end of outer cylinder body away from the external part of inner barrel.
For easy for installation, an end of described outer cylinder body is provided with end socket, and intake-outlet on the outer cylinder body and air inlet are arranged on the end socket, is provided with the branch water baffle plate that gets lodged on the outer cylinder body port in the end socket, divides the water baffle plate to be provided with a plurality of discharge orifices that communicate with the flowing water passage.
In order to reduce resistance to water-flow; Save the energy, the area of the total sectional area of the discharge orifice on described minute water baffle plate, the radial section of flowing water passage, the total sectional area three in the inner core water hole on the inner barrel are all greater than the area of bigger in intake-outlet on the outer cylinder body and an inner barrel upper intake intake-outlet.
In order to reduce the pollution speed and the degree of filter cloth or filter membrane, reduce the number of times that biomembrane forms on the surface of filter cloth or filter membrane, the filtration rack of the filtering material in the described filter course adopts lipophilic material.
To filter rack and better adsorb grease in order to make, is shiny surface with filter membrane or the adjacent face of filter cloth on the filtration rack in the described filter course, deviates from being densely covered with the anti-skidding line of striated on filter membrane or the filter cloth surface on the filtration rack in the described filter course.Filter rack glazing sliding surface and can prevent to filter rack wearing and tearing filter membrane or filter cloth; Stripe surface can make the filtration rack better adsorb grease on the filtration rack, and stripe surface has stronger adsorption capacity with respect to common tungued-and-grooved face (like the protruding face of point-like that gathers) to grease.
In order to reduce cost, the filtration rack thickness in the described filter course is 1-10mm, filter rack along the axial fabric width of inner barrel less than 500mm.
Filtration system of the present invention; Comprise a plurality of aforementioned in any one described hinged joint filter assemblies and two Inlet and outlet water house stewards; Intake-outlet on the outer cylinder body of each hinged joint filter assemblies is connected on the Inlet and outlet water house steward through valve, and the intake-outlet on the inner barrel of each hinged joint filter assemblies is connected on another Inlet and outlet water house steward through valve.
Beneficial effect of the present invention is: filter assemblies of the present invention is through dense water inlet of transposing and filtered fluid outlet; Can realize just filtering and two kinds of filter types of anti-filtration, two kinds of filter types exchanges are used, and the force direction that receives of filter course is changed; Owing to can realize positive and negative filtration; Can prevent that the long-term direction filtration from causing dead film phenomenon or film distortion can not recover problem, reduces the distortion of filter course, the service life of having improved filter course.And the concentrated stream road of filter course and filtered fluid flow channel length equate in two kinds of filter types, and the filter effect of positive and negative filtration is the same.The present invention is suitable for dead-end filtration mode (not having concentrated water drainage to go out during filtration).
The loading density of filter assemblies of the present invention filter course under the prerequisite of identical outer cylinder body and inner barrel is big; Increase filter area to greatest extent, and filter course is wrapped in closely on the inner barrel, the filter course resistance to impact is good; Can handle the dense water of big flow, can bear the high pressure air water and mix flushing.Concentrated stream road or filtered fluid runner in the filter course are shorter, and it is little to consume energy, and filter course is to be made by one whole filtering material, and processing and fabricating is convenient.
Filter assemblies of the present invention and each field board-like, tubular filter assembly, sand cylinder, plate and frame filter press commonly used compared and had the following advantages:
1, low consumption hinging type < < sand cylinder < sheet frame <board-like < tubular type
2, flow velocity hinging type>sheet frame>the sand cylinder
Hinged joint, sheet frame, sand cylinder all belong to dead-end filtration, and the hinged joint pressure drop is minimum.
3, volume hinging type < tubular type <board-like < sand cylinder < sheet frame
4, system cost hinging type < sand cylinder < sheet frame <board-like < tubular type
5, design flexibility hinging type>> board-like tubular type sheet frame the sand cylinder
6, be prone to dirty stifled property hinging type, sand cylinder and sheet frame and all belong to the dead-end filtration mode, sheet frame is prone to dirty stifled, and hinging type and sand cylinder are difficult for dirty stifled.
7, be prone to the cleaning hinging type>> the sand cylinder>sheet frame
The filtered fluid of other filter assemblies in the backwash utilisation system of the filter assemblies in the filtration system of the present invention need not shut down and connect external water source, and backwash operation is simple.
Description of drawings
Fig. 1 is the complete section structural representation of invention;
Fig. 2 is the A-A profile of Fig. 1;
Fig. 3 is the structural representation after the filtering material of filter course folds;
Fig. 4 is the structural representation of filtration system of the present invention;
Among the figure: 1, inner barrel, 2, filter course, 2-1, filter rack outward, 2-2, filter membrane, 2-3, inner filtration rack; 2-4, hinged joint, 3, outer cylinder body, 4, end socket, 5 fens water baffle plates, 6, fastening bolt; 7, sealing bolt, 8, sealing ring, 9, back-up ring, 10, the intake-outlet I, 11, the air inlet I; 12, discharge orifice, 13, the flowing water passage, 14, interior pipe water hole, 15, the intake-outlet II, 16, the air inlet II; 17, band, 18, the Inlet and outlet water house steward, 19, the inlet manifold, 20, valve, 21, the hinged joint filter assemblies.
The specific embodiment
A kind of hinged joint filter assemblies as shown in Figure 1, it comprises inner barrel 1, filter course 2, outer cylinder body 3, end socket 4, divides water baffle plate 5, fastening bolt 6, sealing bolt 7, sealing ring 8, back-up ring 9, intake-outlet I 10, air inlet I 11, discharge orifice 12, flowing water passage 13, interior pipe water hole 14, intake-outlet II 15, air inlet II 16 and band 17.
Inner barrel 1 is arranged in the outer cylinder body 3; Inner barrel 1 and outer cylinder body 3 coaxial settings, inner barrel 1 can be processed by one section body, and the upper end of outer cylinder body 3 and end socket 4 are tightly connected through flange, sealing ring 8 and sealing bolt 7; Be provided with branch water baffle plate 5 in the port of outer cylinder body 3; Divide water baffle plate 5 to be provided with a plurality of discharge orifices 12, the upper end of inner barrel 1 is welded with blind plate, and blind plate is connected fixing with branch water baffle plate 5 through fastening bolt 6.The lower end of outer cylinder body 3 is fixed with the base plate of sealed outer cylinder body 3 lower end ports.The lower end of inner barrel 1 is passed base plate and is reached outside the outer cylinder body 3.
End socket 4 is provided with intake-outlet I 10 and air inlet I 11.The port of the lower end of inner barrel 1 is an intake-outlet II 15, and the lower end of inner barrel 1 also is provided with air inlet II 16.
Be provided with filter course 2 between inner barrel 1 and the outer cylinder body 3; Filter course 2 is processed (as shown in Figure 2) by being folded into corrugated filtering material; Filtering material after folding is on inner barrel 1; And the left and right sides is tightly connected, and forms a corrugated filtering material that is enclosed within the ring-type on the inner barrel 1, and all hinged joint 2-4 of filtering material closely are wrapped in (as shown in Figure 2) on the inner barrel along same direction; Filtering material comprises outer filtration rack 2-1, inner filtration rack 2-3 and is clipped in the filter membrane 2-2 between the two filtration racks that band 17 sealing and fixing are passed through on inner barrel 1 in the two ends of the leaf filtering material of ripple.Filter membrane 2-2 also can replace with filter cloth.Hinged joint 2-4 is two faces that are connected by the fold line in the outside in the filtering material after folding.Divide between water baffle plate 5 and the filter course 2 to be provided with back-up ring 9, back-up ring 9 is enclosed within outside the fastening bolt 6.
On the inner barrel 1 filter course 2 around part be provided with a plurality of in the pipe water holes 14.
Form the flowing water passage 13 of annular between outer cylinder body 1 and the filter course 2, the total sectional area three in area, the interior pipe water hole 14 on the inner barrel 1 of radial section of total sectional area, flowing water passage 13 who divides the discharge orifice 12 on the water baffle plate 5 is all greater than the area of bigger in intake-outlet on the outer cylinder body and an inner barrel upper intake intake-outlet.
A kind of filtration system as shown in Figure 4; It comprises a plurality of hinged joint filter assemblies 21; Two Inlet and outlet water house stewards 18 and two inlet manifolds 19; Hinged joint filter assemblies 21 adopts the described hinged joint filter assemblies of this specific embodiment, and each hinged joint filter assemblies 21 intake-outlet I 10 is connected on the Inlet and outlet water house steward 18 through the pipeline of band valve 20, and the intake-outlet II 15 of each hinged joint filter assemblies is connected on another Inlet and outlet water house steward 18 through the pipeline of band valve 20.Each hinged joint filter assemblies 21 air inlet I 11 is connected on the inlet manifold 19 through the pipeline of band valve 20, and the air inlet II 16 of each hinged joint filter assemblies 21 is connected on another inlet manifold 19 through the pipeline of band valve 20.
This hinged joint filter assemblies can be implemented positive and negative two kinds of filter types.
When just filtering, intake-outlet I 10 is dense water (pending water) import, and intake-outlet II 15 is the filtered fluid outlet; When just filtering the back cleaning; Intake-outlet II 15 is the import of backwash clear water, and intake-outlet I 10 is an outlet of sewer, and air inlet I 11 is a compressed air inlet.
Workflow when just filtering: when just filtering, intake-outlet I 10 connects the supply equipment of dense water, and intake-outlet II 15 connects the filtered fluid storage equipment; Air inlet I 11 is closed with air inlet II 16; Dense water gets into the inner chamber of end socket 4, gets into flowing water passage 13 through dividing a plurality of discharge orifices 12 on the water baffle plate 5, and dense water is after filter course 2 filters; Filtered fluid gets into inner barrel 1 through interior pipe water hole 14, discharges through intake-outlet II 15.Suspended impurity and grease are by separated filter membrane surface and the outer rack surface of filtering stayed.
When just filtering the back backwash, intake-outlet I 10 connects the sewage receiving equipment, and intake-outlet II 15 connects backwash clear water supply equipment; Air inlet II 16 connects high-pressure air source; Air inlet I 11 is closed, and the backwash clear water together gets into the inner chamber of inner barrel 1 through intake-outlet II 15 and compressed air through air inlet I 11 according to a certain percentage, flows into filter courses 2 through the interior pipe water hole 14 of inner barrel 1; Flow into flowing water passage 13 again through filter course 2, discharge from intake-outlet I 10 through undue water baffle plate 5 and end socket 4 again.Air water mixed liquor produces vibration through filter course 2 during this, and impurity of disposing and grease are together discharged fast with the air water mixed liquor and accomplished backwash.
During anti-the filtration, intake-outlet II 15 is dense water inlet, and intake-outlet I 10 is the filtered fluid outlet, and when anti-filtration back was cleaned, intake-outlet I 10 was the import of backwash clear water, and intake-outlet II 15 is an outlet of sewer, and air inlet I 11 is a compressed air inlet.
Workflow during anti-the filtration: during anti-the filtration, intake-outlet II 15 connects the supply equipment of dense water (pending water), and intake-outlet I 10 connects the filtered fluid storage equipment, and air inlet I 11 is closed with air inlet II 16.When instead filtering the back backwash, intake-outlet II 15 connects the sewage receiving equipments, and intake-outlet I 10 connects backwash clear water supply equipment, and air inlet I 11 connects high-pressure air source, and air inlet II 16 is closed.
Anti-technical process of filtering had only the water direction to change, and the filtered fluid runner is changed with the concentrated stream road mutually, and the practical implementation process is with just filtering.
When just filtering, in filter course 2, being positioned at the space that the filter membrane outside struts by outer filtration rack is the concentrated stream road, and in filter course 2, being positioned at the space that the filter membrane inboard struts by the inner filtration rack is the filtered fluid runner, and the concentrated stream road equates with the filtrating flow channel length.
During anti-the filtration; In filter course 2, being positioned at the space that is strutted by outer filtration rack outside the filter membrane is the filtered fluid runner; In filter course 2, being positioned at the space that the filter membrane inboard struts by the inner filtration rack is the concentrated stream road, and the concentrated stream road also equates with the filtrating flow channel length.
Hinged joint filter assemblies of the present invention has been realized positive and negative filtration, and positive and negative filter effect is just the same, and filter efficiency improves, and positive and negative filtration can be operated once in 3-5 month.
Each filter assemblies can just filter simultaneously in this filtration system, perhaps counter simultaneously the filtration, can also be wherein several just filtering, other ground adopts the filtered fluid of the assembly that is just filtering to carry out backwash.
Claims (10)
1. hinged joint filter assemblies; Comprise outer cylinder body, inner barrel and be arranged on outer cylinder body and inner barrel between filter course; It is characterized in that: described filter course is the corrugated filtering material that is folded into that is looped around outside the inner barrel; Filtering material is two-layer soft filtration rack and is clipped in filter membrane or the filter cloth between the two-layer filtration rack that all hinged joints of filtering material closely are wrapped on the inner barrel along same direction, have the flowing water passage of ring-type between outer cylinder body and the filter course; Respectively be provided with an intake-outlet on outer cylinder body and the inner barrel, on the inner barrel filter course around part be provided with in the pipe water hole.
2. hinged joint filter assemblies according to claim 1 is characterized in that: the sealed at both ends of described filter course is fixed on the inner barrel.
3. hinged joint filter assemblies according to claim 1 is characterized in that: respectively be provided with an air inlet on said outer cylinder body and the inner barrel.
4. hinged joint filter assemblies according to claim 3; It is characterized in that: an end of described inner barrel reaches outside the outer cylinder body; The port of the external part of inner barrel is the intake-outlet of inner barrel; Air inlet on the inner barrel is located on the external part of inner barrel, and the air inlet of outer cylinder body and intake-outlet are positioned on the end of outer cylinder body away from the external part of inner barrel.
5. hinged joint filter assemblies according to claim 4; It is characterized in that: an end of described outer cylinder body is provided with end socket; Intake-outlet on the outer cylinder body and air inlet are arranged on the end socket; Be provided with the branch water baffle plate that gets lodged on the outer cylinder body port in the end socket, divide the water baffle plate to be provided with a plurality of discharge orifices that communicate with the flowing water passage.
6. hinged joint filter assemblies according to claim 5 is characterized in that: the area of the total sectional area of the discharge orifice on described minute water baffle plate, the radial section of flowing water passage, the total sectional area three in the inner core water hole on the inner barrel are all greater than the area of bigger in intake-outlet on the outer cylinder body and an inner barrel upper intake intake-outlet.
7. according to any one described hinged joint filter assemblies among the claim 1-6, it is characterized in that: the filtration rack of the filtering material in the described filter course adopts lipophilic material.
8. hinged joint filter assemblies according to claim 7; It is characterized in that: be shiny surface with filter membrane or the adjacent face of filter cloth on the filtration rack in the described filter course, deviate from being densely covered with the anti-skidding line of striated on filter membrane or the filter cloth surface on the filtration rack in the described filter course.
9. hinged joint filter assemblies according to claim 7 is characterized in that: the filtration rack thickness in the described filter course is 1-10mm, filter rack along the axial fabric width of inner barrel less than 500mm.
10. filtration system; It is characterized in that: comprise a plurality of like any one described hinged joint filter assemblies and two Inlet and outlet water house stewards among the claim 1-6; Intake-outlet on the outer cylinder body of each hinged joint filter assemblies is connected on the Inlet and outlet water house steward through valve, and the intake-outlet on the inner barrel of each hinged joint filter assemblies is connected on another Inlet and outlet water house steward through valve.
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|---|---|---|---|
| CN201110296781XA CN102389661A (en) | 2011-09-30 | 2011-09-30 | Hinge filtering component and filtering system |
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| CN201110296781XA CN102389661A (en) | 2011-09-30 | 2011-09-30 | Hinge filtering component and filtering system |
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| CN102389661A true CN102389661A (en) | 2012-03-28 |
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| CN201110296781XA Pending CN102389661A (en) | 2011-09-30 | 2011-09-30 | Hinge filtering component and filtering system |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102764527A (en) * | 2012-07-18 | 2012-11-07 | 孙世博 | Pore shaft water supply filter assembly and filter system |
| CN102921218A (en) * | 2012-11-29 | 2013-02-13 | 长沙矿冶研究院有限责任公司 | Method for increasing axial filtering area and filtering device using method |
| CN103195960A (en) * | 2013-04-09 | 2013-07-10 | 富阳市中荷电子有限公司 | Waste water proportioner |
| CN104258615A (en) * | 2014-10-23 | 2015-01-07 | 哈尔滨斯特莱茵环境科技有限公司 | Multi-filter element or filter bag type fiberglass reinforced plastic precision filter and manufacturing method |
| CN108553976A (en) * | 2018-01-31 | 2018-09-21 | 陕西城鸿实业有限公司 | A kind of Multifunctional filter element |
| CN108697954A (en) * | 2016-03-04 | 2018-10-23 | 沃尔沃卡车集团 | Filter cell for vehicle |
| CN113648895A (en) * | 2021-10-20 | 2021-11-16 | 拓信达(启东)医药生物科技有限公司 | A rabbling mechanism for preparing astallulon |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102764527A (en) * | 2012-07-18 | 2012-11-07 | 孙世博 | Pore shaft water supply filter assembly and filter system |
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| CN104258615A (en) * | 2014-10-23 | 2015-01-07 | 哈尔滨斯特莱茵环境科技有限公司 | Multi-filter element or filter bag type fiberglass reinforced plastic precision filter and manufacturing method |
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| CN108553976A (en) * | 2018-01-31 | 2018-09-21 | 陕西城鸿实业有限公司 | A kind of Multifunctional filter element |
| CN108553976B (en) * | 2018-01-31 | 2020-09-29 | 陕西城鸿实业有限公司 | Multifunctional filter element |
| CN113648895A (en) * | 2021-10-20 | 2021-11-16 | 拓信达(启东)医药生物科技有限公司 | A rabbling mechanism for preparing astallulon |
| CN113648895B (en) * | 2021-10-20 | 2022-01-04 | 拓信达(启东)医药生物科技有限公司 | A rabbling mechanism for preparing astallulon |
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