CN102489059B - Self-cleaning filter - Google Patents
Self-cleaning filter Download PDFInfo
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- CN102489059B CN102489059B CN201110405196.9A CN201110405196A CN102489059B CN 102489059 B CN102489059 B CN 102489059B CN 201110405196 A CN201110405196 A CN 201110405196A CN 102489059 B CN102489059 B CN 102489059B
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Abstract
The invention provides a self-cleaning filter, which is applied to the field of chemical industry, papermaking industry, building materials industry, metallurgy industry and other industries needing solid-liquid separation. The self-cleaning filter has the technical scheme that: a filter screen rack is jointly formed by an upper gear plate, a lower gear plate, support pillars between the gear plates, and filter screen plates among the support pillars, and is driven by a motor to rotate, so that the filtration of liquid and a self-cleaning function of the filter are realized, the cleaning efficiency and liquid filtration processing capacity of the filter are improved, and the requirements of application fields on low investment, high processing capacity, and easiness in operation, cleaning and maintenance of a filtering device are effectively met.
Description
Technical field
The present invention relates to a kind of filter that in liquid, solid impurity filters that is mainly used in, more particularly, the present invention relates to a kind of self-cleaning filter, be applicable to need in numerous industries such as chemical industry, papermaking, building materials, metallurgy the field of Separation of Solid and Liquid.
Background technology
Filtration is one of unit operation in a plurality of industries.Its object is by under motive force or other External Force Actings, liquid (or gas) in suspension (or containing solid particle gas) sees through medium, solid particle and material thereof are filtered medium and hold back, thereby make solid and the operation separated with liquid (or gas) of other materials.
The filtration of liquid is divided and is had gravity filtration, pressure filtration, vacuum filtration and centrifugal filtration etc., filter plant to have numerous forms such as bag filter, vacuum filtration machine, plate and frame type filter-press, chamber filter press, continous way pressing filter, centrifugal separator, membrane filter by its mode of operation.But no matter with which kind of form, liquid is filtered, its essence is all hold back in liquid solid particle and make solid, liquid be able to separation with porous filter medium.But due to filter medium, holding that dirty power is close to is a fixed value, therefore along with the prolongation of filter process time, its solid particle of holding back increases gradually, its filter capacity will decline to a great extent, filtering layer both sides pressure reduction is fast rise, now filter medium must be cleaned, to ensure the normal filtration of filter to liquid.
Cleaning for filter medium, conventionally adopt artificial or semi-artificial cleaning way, it has the shortcomings such as scavenging period is long, efficiency is low, cleaning degree is low, particularly when solid particulate matter has viscosity, filter medium is more easily lost filtration, the cleaning difficulty of filter medium is larger, and the time that single cleans is grown and needs frequent clean, and this filtration treatment ability to filter has caused very large adverse effect.
State Intellectual Property Office discloses the utility model patent that a key name is " fast-cleaning filter " on February 23rd, 2000, it provides a kind of fast-cleaning filter that relates to life and industrial use, filter body is that latch or rotation connect with coordinating of gland, being separated by screen pack into and out of water channel on filter body, the mating surface of screen pack and filter body is conical surface locking, the utility model dismounting speed is fast, cleaned and changed filter screen is convenient, has effectively solved the easy blockage problem of pipeline and water consumption device.
State Intellectual Property Office discloses again the utility model patent that a key name is " filter that can automatically clean " on September 8th, 2010, it provides a kind of filter that can automatically clean, its primary clustering comprises: a motor, one pedestal, more than one filter element base, one capel groove, more than one filtering element (cartridge), one filtering material, one upper cover, more than one support, one shell, one enclosing cover, one embeded slot, one inlet opening, one osculum, one air valve and an apopore, and be provided with a cleaning assembly and a gear train in pedestal, when this revolution, can drive this gear train to rotate, make this cleaning assembly synchronize and rotate with this filtering element (cartridge), therefore can reach the effect of cleaning, and can rely on control panel detecting and control the time that this cleans automatically, thus, form a kind of filter that can automatically clean.
Summary of the invention
It is inconvenient that the present invention is intended to solve existing cleaning filter, and scavenging period is long, and the problem that cleaning efficiency is low and filter capacity is poor provides a kind of filter capacity high, and be convenient to clean the self-cleaning filter that scavenging period is short, efficiency is high.
To achieve these goals, its concrete technical scheme is as follows:
A kind of self-cleaning filter, comprise housing, be arranged on the motor of case top, be connected with motor and stretch into the back shaft of enclosure interior and be sleeved on the filtration rack on back shaft, it is characterized in that: described enclosure interior is provided with dividing plate, housing is divided into upper and lower two cavitys, and back shaft runs through two cavitys, described screen pack frame is arranged in lower chamber, on the side housing of lower chamber, be provided with filter liquide entrance and lower chamber pressure port, bottom is provided with mud hole, is provided with filter liquide outlet and upper cavity pressure port on the housing side of upper cavity, and top is provided with exhaust-valve, described filtration rack is comprised of upper and lower two identical gear plates and the support column between them, the center of two described gear plates all supported axle is passed, on the circumference of each piece gear plate, be evenly distributed with projection, the projection of upper and lower two gear plates is corresponding one by one, form one group, every group of projection top connected by outer support post, the angle of adjacent two projections that angle between adjacent two projections of the plate that cogs is corresponding with lower tooth wheel plate is connected by inner support post, screen pack is removably mounted between outer support post and inner support post, and the limit, left and right of screen pack fits with inner support post and outer support post respectively, the upper of screen pack fitted with upper and lower gear plate shirt rim respectively below, filter liquide can only be flow through from screen pack, enter upper cavity, upper and lower gear plate center all has the bolster installing hole matching with back shaft, and the plate back shaft installing hole surrounding that cogs is provided with and for filter liquide, from lower chamber, flow to the filter liquide opening of upper cavity, described back shaft lower end is provided with the support being arranged on housing bottom inwall, on lower chamber side housing, have the square manhole with seal cover.
Screen pack of the present invention is from cross section, press box, screen pack, sealing gasket and filter screen stand from outside to inside successively, they are passed fixing by assembling bolt, fitting tightly is an integral body, described filter screen stand and inner support post, outer support post and the laminating of upper and lower gear plate shirt rim.
The upper and lower two ends of inner support post of the present invention respectively arrange at least one block parallel with gear plate shirt rim, the gap of block and gear plate shirt rim and the thickness matching of screen pack, one side of screen pack can be inserted in gap, and other three limits of screen pack are separately fixed on the shirt rim of gear plate up and down and outer support post of fitting with screen pack by set bolt.
The filter liquide opening that flow to upper cavity from lower chamber for filter liquide of the present invention is the identical circular hole of equally distributed size on circumference.
The support being arranged on housing bottom inwall that back shaft of the present invention lower end arranges is three-legged support.
The size of the square manhole with seal cover having on lower chamber side housing of the present invention is the area that is greater than a screen pack.
The useful technique effect that the present invention brings:
1, by a kind of filter that plurality of liquid filters that can be used for is provided, be particularly useful in liquid filtration when solid particulate matter has higher tack, and realized the self-cleaning function to the filtration of liquid and filter with single filter simultaneously, thereby improve cleaning filter efficiency and liquid filtering disposal ability, effectively met each application to the low investment of filter, high throughput, easy-operating requirement.
2, for meeting the filtration requirement of different liquids, different filtering accuracies, and the maintenance of screen pack needs, when filter is shut down, screen pack can be filled very easily by square manhole, tear open, exchanges.
3, screen pack, from cross section, is press box, screen pack, sealing gasket and filter screen stand from outside to inside successively, and they are by bolt through fixing, and fitting tightly is an integral body.Can make like this screen pack more sturdy and durable, also be convenient to integral installation and the dismounting of screen pack.
4, the cog filter liquide opening that flow to upper cavity from lower chamber for filter liquide of plate back shaft installing hole surrounding setting is the identical circular hole of equally distributed size on circumference.Can make like this liquid after filtering very well, from lower chamber, flow to upper cavity equably, from filter liquide outlet, discharge.
5, the support being arranged on housing bottom inwall that bolster lower end arranges is three-legged support.Can guarantee that like this bolster can very stably rotate by driven by motor in the situation that, prevent device fails.
6, the installation of screen pack adopts the design of block, on one side screen pack is inserted to the gap of block and gear plate shirt rim, is convenient to dismounting and the replacing of screen pack; Further, add set bolt, make its equipment when work, screen pack is more firm.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the top view of gear plate.
Fig. 3 is the cross-sectional structure schematic diagram of screen pack.
Fig. 4 is screen pack scheme of installation.
Fig. 5 is that screen pack is installed cross-sectional structure schematic diagram.
Reference numeral: 1 is housing, 2 is exhaust-valve, 3 is motor, 4 is back shaft, 5 is filter liquide outlet, 6 is square manhole, 7 is support, 8 is mud hole, 9 is filter liquide entrance, 10 is lower chamber pressure port, 11 for filtering rack, 12 is dividing plate, 13 is upper cavity pressure port, 14 is screen pack, 15 is gear plate, 16 is outer support post, 17 is inner support post, 18 is block, 19 is back shaft installing hole, 20 is filter liquide opening, 21 is gear plate shirt rim, 22 is press box, 23 is screen pack, 24 is sealing gasket, 25 is filter screen stand, 26 is assembling bolt, 27 is set bolt.
The specific embodiment
A kind of self-cleaning filter, comprise housing 1, be arranged on the motor 3 of case top, be connected with motor 3 and stretch into the back shaft 4 of housing 1 inside and be sleeved on the filtration rack 11 on back shaft 4, it is characterized in that: described housing 1 inside is provided with dividing plate 12, housing 1 is divided into upper and lower two cavitys, and back shaft 4 runs through two cavitys, described filtration rack 11 is arranged in lower chamber, on the side housing 1 of lower chamber, be provided with filter liquide entrance 9 and lower chamber pressure port 10, bottom is provided with mud hole 8, is provided with filter liquide outlet 5 and upper cavity pressure port 13 on housing 1 side of upper cavity, and top is provided with exhaust-valve 2, described filtration rack 11 is comprised of upper and lower two identical gear plates 15 and the support column between them, two described gear plate 15 centers all supported axle 4 are passed, on the circumference of each piece gear plate 15, be evenly distributed with projection, the projection of upper and lower two gear plates 15 is corresponding one by one, form one group, every group of projection top connected by outer support post 16, the angle of adjacent two projections that angle between adjacent two projections of the plate 15 that cogs is corresponding with lower tooth wheel plate 15 is connected by inner support post 17, screen pack 14 is removably mounted between outer support post 16 and inner support post 17, and the limit, left and right of screen pack 14 fits with inner support post 17 and outer support post 16 respectively, the upper of screen pack 14 fitted with upper and lower gear plate shirt rim 21 respectively below, filter liquide can only be flow through from screen pack, enter upper cavity, upper and lower gear plate 15 centers all have the bolster installing hole 19 matching with back shaft 4, and plate 15 back shaft installing hole 19 surroundings that cog are provided with and for filter liquide, from lower chamber, flow to the filter liquide opening 20 of upper cavity, described back shaft 4 lower ends are provided with the support 7 being arranged in housing 1 bottom interior wall, on lower chamber side housing 1, have the square manhole 6 with seal cover.
Inner support post of the present invention respectively arranges at least one block parallel with gear plate shirt rim 21 18 in two ends Shang Xia 17, block 18 and the gap of gear plate shirt rim 21 and the thickness matching of screen pack 14, one side of screen pack 14 can be inserted in gap, and other three limits of screen pack 14 are separately fixed on the shirt rim of gear plate up and down 21 and outer support post 16 of fitting with screen pack 14 by set bolt 27.
The filter liquide opening 20 that flow to upper cavity from lower chamber for filter liquide of the present invention is the identical circular hole of equally distributed size on circumference.
The support 7 being arranged in housing 1 bottom interior wall that back shaft of the present invention 4 lower ends arrange is three-legged support.
The size of the square manhole 6 with seal cover having on lower chamber side housing 1 of the present invention is the area that is greater than a screen pack 14.
embodiment 2
A kind of self-cleaning filter, comprise housing 1, be arranged on the motor 3 of case top, be connected with motor 3 and stretch into the back shaft 4 of housing 1 inside and be sleeved on the filtration rack 11 on back shaft 4, it is characterized in that: described housing 1 inside is provided with dividing plate 12, housing 1 is divided into upper and lower two cavitys, and back shaft 4 runs through two cavitys, described filtration rack 11 is arranged in lower chamber, on the side housing 1 of lower chamber, be provided with filter liquide entrance 9 and lower chamber pressure port 10, bottom is provided with mud hole 8, is provided with filter liquide outlet 5 and upper cavity pressure port 13 on housing 1 side of upper cavity, and top is provided with exhaust-valve 2, described filtration rack 11 is comprised of upper and lower two identical gear plates 15 and the support column between them, two described gear plate 15 centers all supported axle 4 are passed, on the circumference of each piece gear plate 15, be evenly distributed with projection, the projection of upper and lower two gear plates 15 is corresponding one by one, form one group, every group of projection top connected by outer support post 16, the angle of adjacent two projections that angle between adjacent two projections of the plate 15 that cogs is corresponding with lower tooth wheel plate 15 is connected by inner support post 17, screen pack 14 is removably mounted between outer support post 16 and inner support post 17, and the limit, left and right of screen pack 14 fits with inner support post 17 and outer support post 16 respectively, the upper of screen pack 14 fitted with upper and lower gear plate shirt rim 21 respectively below, filter liquide can only be flow through from screen pack, enter upper cavity, upper and lower gear plate 15 centers all have the bolster installing hole 19 matching with back shaft 4, and plate 15 back shaft installing hole 19 surroundings that cog are provided with and for filter liquide, from lower chamber, flow to the filter liquide opening 20 of upper cavity, described back shaft 4 lower ends are provided with the support 7 being arranged in housing 1 bottom interior wall, on lower chamber side housing 1, have the square manhole 6 with seal cover.
embodiment 3
A kind of self-cleaning filter, comprise housing 1, be arranged on the motor 3 of case top, be connected with motor 3 and stretch into the back shaft 4 of housing 1 inside and be sleeved on the filtration rack 11 on back shaft 4, it is characterized in that: described housing 1 inside is provided with dividing plate 12, housing 1 is divided into upper and lower two cavitys, and back shaft 4 runs through two cavitys, described filtration rack 11 is arranged in lower chamber, on the side housing 1 of lower chamber, be provided with filter liquide entrance 9 and lower chamber pressure port 10, bottom is provided with mud hole 8, is provided with filter liquide outlet 5 and upper cavity pressure port 13 on housing 1 side of upper cavity, and top is provided with exhaust-valve 2, described filtration rack 11 is comprised of upper and lower two identical gear plates 15 and the support column between them, two described gear plate 15 centers all supported axle 4 are passed, on the circumference of each piece gear plate 15, be evenly distributed with projection, the projection of upper and lower two gear plates 15 is corresponding one by one, form one group, every group of projection top connected by outer support post 16, the angle of adjacent two projections that angle between adjacent two projections of the plate 15 that cogs is corresponding with lower tooth wheel plate 15 is connected by inner support post 17, screen pack 14 is removably mounted between outer support post 16 and inner support post 17, and the limit, left and right of screen pack 14 fits with inner support post 17 and outer support post 16 respectively, the upper of screen pack 14 fitted with upper and lower gear plate shirt rim 21 respectively below, filter liquide can only be flow through from screen pack, enter upper cavity, upper and lower gear plate 15 centers all have the bolster installing hole 19 matching with back shaft 4, and plate 15 back shaft installing hole 19 surroundings that cog are provided with and for filter liquide, from lower chamber, flow to the filter liquide opening 20 of upper cavity, described back shaft 4 lower ends are provided with the support 7 being arranged in housing 1 bottom interior wall, on lower chamber side housing 1, have the square manhole 6 with seal cover.
Inner support post of the present invention respectively arranges at least one block parallel with gear plate shirt rim 21 18 in two ends Shang Xia 17, block 18 and the gap of gear plate shirt rim 21 and the thickness matching of screen pack 14, one side of screen pack 14 can be inserted in gap, and other three limits of screen pack 14 are separately fixed on the shirt rim of gear plate up and down 21 and outer support post 16 of fitting with screen pack 14 by set bolt 27.
A kind of self-cleaning filter, comprise housing 1, be arranged on the motor 3 of case top, be connected with motor 3 and stretch into the back shaft 4 of housing 1 inside and be sleeved on the filtration rack 11 on back shaft 4, it is characterized in that: described housing 1 inside is provided with dividing plate 12, housing 1 is divided into upper and lower two cavitys, and back shaft 4 runs through two cavitys, described filtration rack 11 is arranged in lower chamber, on the side housing 1 of lower chamber, be provided with filter liquide entrance 9 and lower chamber pressure port 10, bottom is provided with mud hole 8, is provided with filter liquide outlet 5 and upper cavity pressure port 13 on housing 1 side of upper cavity, and top is provided with exhaust-valve 2, described filtration rack 11 is comprised of upper and lower two identical gear plates 15 and the support column between them, two described gear plate 15 centers all supported axle 4 are passed, on the circumference of each piece gear plate 15, be evenly distributed with projection, the projection of upper and lower two gear plates 15 is corresponding one by one, form one group, every group of projection top connected by outer support post 16, the angle of adjacent two projections that angle between adjacent two projections of the plate 15 that cogs is corresponding with lower tooth wheel plate 15 is connected by inner support post 17, screen pack 14 is removably mounted between outer support post 16 and inner support post 17, and the limit, left and right of screen pack 14 fits with inner support post 17 and outer support post 16 respectively, the upper of screen pack 14 fitted with upper and lower gear plate shirt rim 21 respectively below, filter liquide can only be flow through from screen pack, enter upper cavity, upper and lower gear plate 15 centers all have the bolster installing hole 19 matching with back shaft 4, and plate 15 back shaft installing hole 19 surroundings that cog are provided with and for filter liquide, from lower chamber, flow to the filter liquide opening 20 of upper cavity, described back shaft 4 lower ends are provided with the support 7 being arranged in housing 1 bottom interior wall, on lower chamber side housing 1, have the square manhole 6 with seal cover.
Inner support post of the present invention respectively arranges at least one block parallel with gear plate shirt rim 21 18 in two ends Shang Xia 17, block 18 and the gap of gear plate shirt rim 21 and the thickness matching of screen pack 14, one side of screen pack 14 can be inserted in gap, and other three limits of screen pack 14 are separately fixed on the shirt rim of gear plate up and down 21 and outer support post 16 of fitting with screen pack 14 by set bolt 27.
Specific works process of the present invention:
Filtering under duty, the filter liquide entrance 9 of filter liquide inherent filtration device cavity of resorption enters filter, flow through and be installed on the screen pack 14 filtering on rack 11, after screen pack 23 filtrations wherein, solid particle is trapped within on screen pack 23 and forms filter cake, filtrate is passed screen pack 23, and flows into epicoeles from filtering the filter liquide opening 20 of the plate 15 that cogs of rack 11, then filtered liquid outlet 5 is discharged.The solid particle of holding back along with screen pack 23 increases gradually, and the filter capacity of screen pack 23 declines gradually, filters rack 11 inside and outside pressure differentials and strengthens gradually, and the difference of 10 measuring pressures of lower chamber pressure port and 13 measuring pressures of upper cavity pressure port increases gradually.When this pressure differential reaches after certain setup pressure value, show that filter loses filtering function substantially, should give cleaning.
When cleaning state, close after filter liquide entrance 9 and filter liquide outlet 5, starter motor 3, back shaft 4 drives and filters rack 11 rotations, utilizes the turbulence of filter liquide to impact cleaning to the filter cake on screen pack 23.After cleaning process continues special time and when the difference of 10 measuring pressures of lower chamber pressure port and 13 measuring pressures of upper cavity pressure port is close to zero, show that the solid slag on screen pack 23 is cleaned complete substantially, now, opening filter bottom valve and top exhaust-valve 2, by bottom mud hole 8, discharge the suspension of slag, liquid mixing, thereby complete the self-cleaning process of filter.
For meeting the filtration requirement of different liquids, different filtering accuracies, and the maintenance of screen pack 14 needs, when filter is shut down, screen pack 14 can be filled very easily, be torn open, be exchanged by square manhole 6.
Claims (6)
1. a self-cleaning filter, comprise housing (1), be arranged on the motor (3) of case top, be connected with motor (3) and stretch into the inner back shaft (4) of housing (1) and be sleeved on the filtration rack (11) on back shaft (4), it is characterized in that: described housing (1) inside is provided with dividing plate (12), housing (1) is divided into upper and lower two cavitys, and back shaft (4) runs through two cavitys, described filtration rack (11) is arranged in lower chamber, on the side housing of lower chamber, be provided with filter liquide entrance (9) and lower chamber pressure port (10), bottom is provided with mud hole (8), on the housing side of upper cavity, be provided with filter liquide outlet (5) and upper cavity pressure port (13), top is provided with exhaust-valve (2), described filtration rack (11) is comprised of upper and lower two identical gear plates (15) and the support column between them, the center of described two gear plates (15) all supported axle (4) is passed, on the circumference of each piece gear plate (15), be evenly distributed with projection, the projection of upper and lower two gear plates (15) is corresponding one by one, form one group, every group of projection top connected by outer support post (16), the angle of adjacent two projections that angle between adjacent two projections of the plate (15) that cogs is corresponding with lower tooth wheel plate (15) is connected by inner support post (17), screen pack (14) is removably mounted between outer support post (16) and inner support post (17), and the limit, left and right of screen pack (14) fits with inner support post (17) and outer support post (16) respectively, the upper of screen pack (14) fitted with upper and lower gear plate shirt rim (21) respectively below, upper and lower gear plate (15) center all has the bolster installing hole (19) matching with back shaft (4), and the plate that cogs (15) back shaft installing hole (19) surrounding is provided with and for filter liquide, from lower chamber, flow to the filter liquide opening (20) of upper cavity, described back shaft (4) lower end is provided with the support (7) being arranged in housing (1) bottom interior wall, on lower chamber side housing, have the square manhole (6) with seal cover.
2. a kind of self-cleaning filter according to claim 1, it is characterized in that: described screen pack (14) is from cross section, press box (22), screen pack (23), sealing gasket (24) and filter screen stand (25) from outside to inside successively, they are passed fixing by assembling bolt (26), fitting tightly is an integral body, described filter screen stand (25) and inner support post (17), outer support post (16) and the laminating of upper and lower gear plate shirt rim (21).
3. a kind of self-cleaning filter according to claim 1 and 2, it is characterized in that: the upper and lower two ends of described inner support post (17) respectively arrange at least one block (18) parallel with gear plate shirt rim (21), block (18) and the gap of gear plate shirt rim (21) and the thickness matching of screen pack (14), one side of screen pack (14) can be inserted in gap, and other three limits of screen pack (14) are separately fixed on the shirt rim of gear plate up and down (21) and outer support post (16) of fitting with screen pack (14) by set bolt (27).
4. a kind of self-cleaning filter according to claim 1 and 2, is characterized in that: the described filter liquide opening (20) that flow to upper cavity from lower chamber for filter liquide is the identical circular hole of equally distributed size on circumference.
5. a kind of self-cleaning filter according to claim 1 and 2, is characterized in that: the support (7) being arranged in housing (1) bottom interior wall that described back shaft (4) lower end arranges is three-legged support.
6. a kind of self-cleaning filter according to claim 1 and 2, is characterized in that: the size of the square manhole with seal cover having on described lower chamber side housing (6) is for being greater than the area of a screen pack (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110405196.9A CN102489059B (en) | 2011-12-08 | 2011-12-08 | Self-cleaning filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110405196.9A CN102489059B (en) | 2011-12-08 | 2011-12-08 | Self-cleaning filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102489059A CN102489059A (en) | 2012-06-13 |
| CN102489059B true CN102489059B (en) | 2014-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110405196.9A Active CN102489059B (en) | 2011-12-08 | 2011-12-08 | Self-cleaning filter |
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| CN (1) | CN102489059B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104083925B (en) * | 2014-07-22 | 2016-01-20 | 长治市永华机械有限公司 | Backwash single-filtering system |
| CN105126414B (en) * | 2015-09-07 | 2017-03-29 | 广船国际有限公司 | Centrifugal automatically cleaning filter |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2667798B1 (en) * | 1990-10-15 | 1993-06-11 | Aerospatiale | SELF-HEATING AEROSOL COLLECTOR FILTER FOR PYROLYSIS. |
| GB2276096B (en) * | 1993-03-08 | 1996-10-02 | Filterwell International Limit | Filter device |
| US6739347B2 (en) * | 2001-08-25 | 2004-05-25 | Spin Clean Products, Llc | System for spin-cleaning closed-end filter cartridges |
| US6962256B2 (en) * | 2003-05-27 | 2005-11-08 | Arvin Technologies, Inc. | Plastic molded center tube assembly |
| CN2640573Y (en) * | 2003-08-01 | 2004-09-15 | 文明华 | Liquid filtering appts. |
| NL1035386C1 (en) * | 2008-05-02 | 2008-08-14 | Perry Toussaint | Cartridge filter rinsing device for e.g. swimming pool, has spindle including inner threads on which cartridge filter is placed, where water from mouth rinses cartridge by rotating and moving filter through threads from top to bottom |
| DE102009007240A1 (en) * | 2009-02-03 | 2010-08-12 | Siemens Aktiengesellschaft | Steam sieve and method for producing a steam sieve |
| CN202366533U (en) * | 2011-12-08 | 2012-08-08 | 成都华西工业气体有限公司 | Self-cleaning filter |
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2011
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