CN103721453B - Filter with filtering material capable of being continuously and movably replaced at random - Google Patents
Filter with filtering material capable of being continuously and movably replaced at random Download PDFInfo
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- CN103721453B CN103721453B CN201410031502.0A CN201410031502A CN103721453B CN 103721453 B CN103721453 B CN 103721453B CN 201410031502 A CN201410031502 A CN 201410031502A CN 103721453 B CN103721453 B CN 103721453B
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Abstract
The invention relates to a filter with a filtering material capable of being continuously and movably replaced at random. The filter comprises a filter barrel body, a filter cone bottom, a filtering material pressing-in opening and a slag-wrapping filtering material discharging device, wherein the filter barrel body is internally provided with a filtering bed and is provided with a filtrate distributing device; the filter cone bottom is internally provided with one or at least two filtering-bed conical leaking bottoms; a water-permeable gap is arranged between each filtering-bed conical leaking bottom and the filter cone bottom, and water-permeable holes are distributed in the leaking wall of each filtering-bed conical leaking bottom; one side of the lower part of the filter cone bottom is provided with a purified-filtrate outlet; the single filtering-bed conical leaking bottom is internally provided with a conical leaking bottom type spiral propeller, or the bottom parts of the plurality of filtering-bed conical leaking bottoms are internally provided with conical leaking bottom type spiral propellers or propelling devices; a pressing-in device is arranged at the filtering material pressing-in opening. The filter has the advantages that the filtering resistance of the filtering bed can be effectively reduced, the operation is simple, the full automation can be realized, the backwashing of the filtering bed is not needed, and the problems of retreatment and secondary pollution of the backwashing water are solved.
Description
Technical field
The present invention relates to media filtration equipment, refer in particular to a kind of random continuous and move the filter changing filtrate.
Background technology
Fixed bed filtering equipment is all generally carry out cleaned filter bed by backwash or integral replacing filtrate.Integral replacing filtrate is generally manual operation, and labour intensity is large, and backwash water process is also pretty troublesome, and equipment requirement is high, undesirable again with simple device treatment effect; Much just this backwash water has directly been emitted so have, what this essence was brought to environment is the liquid phase secondary pollution of equivalent, just the concentration of sewage is improve; And the bottom drain of fixed bed filtering equipment is generally flat, its water permeable area is less than the cross-sectional area of filter bed, and corresponding filtration resistance is large.
Summary of the invention
The object of the invention is for the shortcoming existed in background technology and problem in addition improvement and bring new ideas, provide a kind of rational in infrastructure, without liquid phase secondary pollution, the random continuous that corresponding filtration resistance is little moves the filter of replacing filtrate.
Technical scheme of the present invention comprises filter cylinder, is connected to the filter cone end bottom filter cylinder, is arranged on the filtrate press-in mouth of filter cone bottom, the end, and be arranged on filter cylinder top wrap up in slag filter material discharger, wherein:
Be filter bed in filter cylinder, filter cylinder is provided with filtrate liquid distributor, filtrate liquid distributor one end to be arranged in filter bed and to imbed in the filtrate be full of in filter bed, and the filtrate liquid distributor being arranged in filter bed is positioned at the filtrate wrapped up in below slag filter material discharger;
Be provided with one or at least two filter bed taper bottom drains, filter bed taper bottom drain and filter are bored at the end and are provided with permeable gap, and the leakage wall of filter bed taper bottom drain is covered with permeable hole at described the filter cone end; Filter cone side, bottom is provided with purifying filter liquor outlet, and the filtrate to be filtered that filtrate liquid distributor enters is after the media filtration in filter bed, and the permeable hole passing downwardly through filter bed taper bottom drain is exported by purifying filter liquor discharges;
In the filter bed taper bottom drain of described single setting, taper leakage-bottom spiral propeller is set, or bottom the filter bed taper bottom drain of described multiple setting, taper leakage-bottom spiral propeller or propulsion plant are set, or described filtrate pressure porch arranges press-in device; The filtrate that enters of filtrate press-in mouth is upwards dispersed or be full of filter bed through filter bed taper bottom drain is dispersed by taper leakage-bottom spiral propeller or propulsion plant; Or filtrate is pressed into by filtrate the press-in device that mouth arranges and is directly upwards full of filter bed through filter bed taper bottom drain is dispersed, makes upper strata wrap up in slag filter material and discharges through wrapping up in slag filter material discharger.
Advantage of the present invention and beneficial effect:
Taper bottom drain of the present invention can make water permeable area substantially exceed the cross-sectional area of filter bed, can effectively reduce the filtration resistance of filter bed like this.And the present invention is without the need to high pressure or vacuum power consumption, remove numerous and diverse work of a blob of slag and filter wash cloth without the need to gap, simple to operate, follow the tracks of operation without the need to special messenger, changing filtrate without the need to manually concentrating, can full-automation be realized, the present invention without the need to backwash filter bed, without reprocessing and the secondary pollution problem of backwash water.Unit disposal ability can be larger.Under kindred circumstances, filtering accuracy and effect can be done better, and are a kind of filter plants without backwash water secondary pollution, and the desirable pre-processing device of micro-filtration and ultrafiltration, are also the ideal equipment of all filter bed wash waters of purification or backwash water.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Detailed description of the invention
As shown in Figure 1, the present invention includes filter cylinder 5, be connected to the filter cone end 8 bottom filter cylinder 5, be arranged on the filtrate press-in mouth 12 of filter cone bottom, the end 8, and be arranged on filter cylinder 5 top wrap up in slag filter material discharger, wherein:
Be filter bed 6 in filter cylinder 5, filter cylinder 5 is provided with filtrate liquid distributor, filtrate liquid distributor one end to be arranged in filter bed 6 and to imbed in the filtrate be full of in filter bed 6, and the filtrate liquid distributor being arranged in filter bed 6 is positioned at the filtrate wrapped up in below slag filter material discharger;
Be provided with one or at least two filter bed taper bottom drains 7, filter bed taper bottom drain 7 and filter are bored at the end 8 and are provided with permeable gap, and the leakage wall of filter bed taper bottom drain 7 is covered with permeable hole at described the filter cone end 8; Filter cone side, bottom, the end 8 is provided with purifying filter liquor outlet 9, and the filtrate to be filtered that filtrate liquid distributor enters is after the media filtration in filter bed 6, and the permeable hole passing downwardly through filter bed taper bottom drain 7 exports 9 by purifying filter liquor and discharges;
In the filter bed taper bottom drain 7 of described single setting, taper leakage-bottom spiral propeller 13 is set, or bottom the filter bed taper bottom drain 7 of described multiple setting, taper leakage-bottom spiral propeller 13 or propulsion plant are set, or described filtrate press-in mouth 12 place arranges press-in device; The filtrate that enters of filtrate press-in mouth 12 is upwards dispersed or be full of filter bed 6 through filter bed taper bottom drain 7 is dispersed by taper leakage-bottom spiral propeller 13 or propulsion plant; Or filtrate is pressed into the press-in device that arranges of mouth 12 by filtrate and is directly upwards full of filter bed 6 through filter bed taper bottom drain 7 is dispersed, makes upper strata wrap up in slag filter material and discharges through wrapping up in slag filter material discharger.
Slag filter material discharger of wrapping up in of the present invention comprises the deslagging groove 2 being arranged on filter cylinder 5 top, be arranged on the slag-draining device transmission device 16 above deslagging groove 2, with the deslagging doctor blade device being arranged on slag-draining device transmission device 16 bottom, wherein the deslagging movable scraper 1 of deslagging doctor blade device stretches out filter cylinder 5 outer radius portion and is located in deslagging groove 2 groove, the bottom of deslagging groove 2 is provided with slag notch 15, described deslagging movable scraper 1 is under slag-draining device transmission device 16 drives, scrape to slag notch 15 discharge pushing the slag filter material of wrapping up in after filtrate liquid distributor come.Described filtrate liquid distributor comprises the filtrate inlet port 3 being arranged on filter cylinder 5 outside and the filtrate liquid distributor 4 be arranged in filter bed 6, the pipeline of wherein filtrate inlet port 3 is provided with electrically operated valve 17, filtrate liquid distributor 4 is evenly distributed with filtrate squit hole, and from there being filtrate punishment in advance gap between filtrate liquid distributor 4.In the filter bed taper bottom drain 7 of described single setting, taper leakage-bottom spiral propeller 13 is set, the press-in device at the taper leakage-bottom spiral propeller 13 that the filtrate that enters of filtrate press-in mouth 12 is established in filter bed taper bottom drain 7 or filtrate press-in mouth 12 place upwards dispersed being advanced into is full of filter bed 6, or filtrate continues propelling and makes upper strata wrap up in slag filter material to discharge to wrapping up in below slag filter material discharger.Taper leakage-bottom spiral propeller 13 or propulsion plant or filtrate press-in mouth 12 place are set bottom the filter bed taper bottom drain 7 of described multiple settings press-in device is set.The filtrate that filtrate press-in mouth 12 enters, through taper leakage-bottom spiral propeller 13 or propulsion plant or filtrate press-in mouth 12 place press-in device, upwards be full of filter bed 6 by filter bed taper bottom drain 7 is dispersed, or filtrate continues press-in and makes upper strata wrap up in slag filter material to discharge through wrapping up in below slag filter material discharger.Arrange propeller transmission device 11 below described filtrate press-in mouth 12 connect and drive taper leakage-bottom spiral propeller 13 to work.Described filtrate press-in mouth 12 and filter are bored and are arranged binder sealing shroud 10 between the end 8 and filter bed taper bottom drain 7 and be connected.Described filter cylinder 5 is also provided with upper and lower liquid level sensor 14.The end 8 bored by described filter cylinder 5 and filter and filter bed taper bottom drain 7 is fixedly connected with by flange bolt.Described purifying filter liquor exports on 9 pipelines and is also provided with electrically operated valve 17.
Design principle of the present invention:
1, automated randomized continuous moving changes filtrate.Filter residue is discharged at random, without the need to backwash filter bed, namely without backwash water secondary pollution; Automatic replacing filtrate, no periodic changes numerous and diverse hand labor of filtrate; The non-concentrated replacing of filtrate, filter bed parameter stability, controlled.
2, filtrate and the reverse movement of filtrate.Go out filtrate end and go out filter residue and do not hold altogether, more dirty slag can not contact with cleaner water; The filter residue got rid of always wraps up in the heaviest filtrate of slag.And filtrate in filter bed and mobile work also can static work (filtration), be mobile working when filtrate needs when changing, be static work when without the need to changing filtrate.
3, flush type filtrate liquid distributor.Filtrate liquid distributor is imbedded in filtrate, makes filtrate, liquid level at filter bed, and under bed surface, but the filter residue of discharge is semi-drying solid; Filtrate by liquid distributor, is evenly distributed on the cross section at filter bed feed liquor place by filtrate in filtrate.
4, filter bottom is a multilayer cone chamber, and cone chamber internal layer is filtrate bottom drain.Adopting taper bottom drain to be for ease of advancing filtrate from bottom bottom filter bed, simultaneously filtrate can be made again at this super cross section, area through, form liquid-solid lower resistance counter-current separation interface.
5, taper leakage-bottom spiral filtrate propeller is provided with in bottom drain cone chamber.Taper leakage-bottom spiral propeller Main Function one is the new filtrate increase lifting force upwards making to enter bottom filter bed; Two is that the filtrate that small bore enters can be distributed on the whole cross section of filter bed; Three is can make filtrate smoothly by filter bed cone bottom.
6, bottom filter bed can be the taper bottom drain of a charging aperture, also can be the cross section bottom filter bed is uniformly distributed multiple taper leakage-bottom charging aperture.When filter bed diameter is less, adopt a taper bottom drain, adopt the charging of multiple even cloth taper bottom drain when filter bed diameter is larger, at this moment taper bottom drain, can not spiral propeller be established, directly can be pressed into mouth outer end by new filtrate and filtrate is pressed into filter bed.Its object is exactly that the filtrate making to enter can be dispersed on the cross section of whole filter bed uniformly, and whole cross section produces same filtrate upflow velocity.When adopting multiple even cloth taper bottom drain dispersion charging bottom filter bed, at this moment filtrate can be dispersed on the cross section bottom filter bed, thus can not arrange taper leakage-bottom spiral propeller in taper bottom drain; And filtrate is directly made to be full of filter bed, as long as can by dispersed for new filtrate press-in filter bed through multiple even cloth taper bottom drain press-in in new filtrate press-in mouth outer end by employing.
7, the present invention be also provided with fluid level controller, filtrate automatic makeup give and wrap up in slag filter material discharger.
The present invention adopts random continuous automatically to change filtrate, has both reduced stability and controllability that labour intensity turn improves filter bed parameter.And the filtrate be discharged always to wrap up in slag the heaviest, along with constantly supplementing of filtrate is discharged, filter residue is constantly taken out of, so without the need to backwash filter bed, namely without backwash filter residue water.And the slag filter material of heavily wrapping up in of discharging is discharged on filter bed filtrate level, so the filter residue always semi-drying solid of discharging, be convenient to post processing.When filtrate is inorganic particle, filtrate is also inorganic nature sewage, and the semi-drying filter residue of discharge can landfill disposal; If filtrate is organic sewage, particularly sanitary wastewater, the organic cheap granule filter material of available easy microbial decomposition, as the stalk bits, wood chip, husk bits, degradability resin particle etc. that processed, the filter residue of this discharge is good marsh gas raw materials.It is that taper is conducive to into filtrate, distribution filtrate that the present invention enters filtrate place, and be again filter bed bottom drain, which increase water permeable area, whole water permeable area is greater than filter bed cross section, area simultaneously.Because the present invention is without backwash filter residue water, so be the desirable pre-processing device of a kind of filter plant without backwash water secondary pollution and micro-filtration, ultrafiltration, be also the ideal equipment of all filter bed wash waters of purified treatment or backwash water.
Embodiment of the present invention is only the description carried out the preferred embodiment of the present invention; not design of the present invention and scope are limited; under the prerequisite not departing from design philosophy of the present invention; the various modification that in this area, engineers and technicians make technical scheme of the present invention and improvement; protection scope of the present invention all should be fallen into; the technology contents of request protection of the present invention, all records in detail in the claims.
Claims (10)
1. a random continuous moves the filter changing filtrate, it is characterized in that comprising filter cylinder (5), be connected to the filter cone end (8) of filter cylinder (5) bottom, be arranged on filtrate press-in mouth (12) of the filter cone end (8) bottom, with be arranged on filter cylinder (5) top wrap up in slag filter material discharger, wherein:
Be filter bed (6) in filter cylinder (5), (5) are provided with filtrate liquid distributor to filter cylinder, filtrate liquid distributor one end to be arranged in filter bed (6) and to imbed in the filtrate be full of in filter bed (6), and the filtrate liquid distributor being arranged in filter bed (6) is positioned at the filtrate wrapped up in below slag filter material discharger;
Be provided with one or at least two filter bed taper bottom drains (7) in the described filter cone end (8), filter bed taper bottom drain (7) and filter are bored at the end (8) and are provided with permeable gap, and the leakage wall of filter bed taper bottom drain (7) is covered with permeable hole; The filter cone end (8) side, bottom is provided with purifying filter liquor outlet (9), the filtrate to be filtered that filtrate liquid distributor enters is after the media filtration in filter bed (6), and the permeable hole passing downwardly through filter bed taper bottom drain (7) exports (9) by purifying filter liquor and discharges;
In the filter bed taper bottom drain (7) of described single setting, taper leakage-bottom spiral propeller (13) is set, or filter bed taper bottom drain (7) bottom of described multiple setting arranges propulsion plant, or described filtrate press-in mouth (12) place arranges press-in device; Filtrate press-in mouth (12) filtrate that enters is upwards dispersed or be full of filter bed (6) through filter bed taper bottom drain (7) is dispersed by taper leakage-bottom spiral propeller (13) or propulsion plant; Or filtrate is pressed into by filtrate press-in device that mouth (12) arranges and is directly upwards full of filter bed (6) through filter bed taper bottom drain (7) is dispersed, makes upper strata wrap up in slag filter material and discharges through wrapping up in slag filter material discharger.
2. random continuous according to claim 1 moves the filter changing filtrate, it is characterized in that described slag filter material discharger of wrapping up in comprises the deslagging groove (2) being arranged on filter cylinder (5) top, be arranged on the slag-draining device transmission device (16) of deslagging groove (2) top, with the deslagging doctor blade device being arranged on slag-draining device transmission device (16) bottom, wherein the deslagging movable scraper (1) of deslagging doctor blade device stretches out filter cylinder (5) outer radius portion and is located in deslagging groove (2) groove, the bottom of deslagging groove (2) is provided with slag notch (15), described deslagging movable scraper (1) is under slag-draining device transmission device (16) drives, scrape to slag notch (15) discharge pushing the slag filter material of wrapping up in after filtrate liquid distributor come.
3. random continuous according to claim 1 moves the filter changing filtrate, it is characterized in that described filtrate liquid distributor comprises the filtrate liquid distributor (4) being arranged on the outside filtrate inlet port (3) of filter cylinder (5) and being arranged in filter bed (6), the pipeline of wherein filtrate inlet port (3) is provided with electrically operated valve (17), (4) are evenly distributed with filtrate squit hole with filtrate liquid distributor, and from there being filtrate punishment in advance gap between filtrate liquid distributor (4).
4. random continuous according to claim 1 moves the filter changing filtrate, in the filter bed taper bottom drain (7) that it is characterized in that described single setting, taper leakage-bottom spiral propeller (13) is set, the press-in device at the taper leakage-bottom spiral propeller (13) that filtrate press-in mouth (12) filtrate that enters is established in filter bed taper bottom drain (7) or filtrate press-in mouth (12) place upwards dispersed being advanced into is full of filter bed (6), or filtrate continues propelling and makes upper strata wrap up in slag filter material to discharge to wrapping up in below slag filter material discharger.
5. random continuous according to claim 1 moves the filter changing filtrate, it is characterized in that filter bed taper bottom drain (7) bottom of described multiple settings arranges propulsion plant or filtrate press-in mouth (12) place arranges press-in device, filtrate press-in mouth (12) filtrate that enters upwards is full of filter bed (6) through taper leakage-bottom spiral propeller (13) or propulsion plant or press-in device by filter bed taper bottom drain (7) is dispersed, or filtrate continues press-in and makes upper strata wrap up in slag filter material to discharge through wrapping up in below slag filter material discharger.
6. random continuous according to claim 1 moves the filter changing filtrate, it is characterized in that described filtrate press-in mouth (12) below arranges propeller transmission device (11) and connects and drive taper leakage-bottom spiral propeller (13) to work.
7. random continuous according to claim 1 moves and changes the filter of filtrate, it is characterized in that described filtrate press-in mouth (12) and filter are bored and arranges binder sealing shroud (10) between the end (8) and filter bed taper bottom drain (7) and be connected.
8. random continuous according to claim 1 moves the filter changing filtrate, it is characterized in that described filter cylinder (5) is also provided with upper and lower liquid level sensor (14).
9. random continuous according to claim 1 moves the filter changing filtrate, it is characterized in that described filter cylinder (5) bores the end (8) with filter and filter bed taper bottom drain (7) is fixedly connected with by flange bolt.
10. random continuous according to claim 1 moves the filter changing filtrate, it is characterized in that described purifying filter liquor outlet (9) pipeline is also provided with electrically operated valve (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410031502.0A CN103721453B (en) | 2014-01-23 | 2014-01-23 | Filter with filtering material capable of being continuously and movably replaced at random |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410031502.0A CN103721453B (en) | 2014-01-23 | 2014-01-23 | Filter with filtering material capable of being continuously and movably replaced at random |
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| Publication Number | Publication Date |
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| CN103721453A CN103721453A (en) | 2014-04-16 |
| CN103721453B true CN103721453B (en) | 2015-07-15 |
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| CN201410031502.0A Active CN103721453B (en) | 2014-01-23 | 2014-01-23 | Filter with filtering material capable of being continuously and movably replaced at random |
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Families Citing this family (4)
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| CN104474750B (en) * | 2014-11-24 | 2016-05-11 | 武汉理工大学 | A kind of purifier |
| CN107513401A (en) * | 2017-09-12 | 2017-12-26 | 苏州诺力达工程技术服务有限公司 | A kind of oil fast filtering easy device |
| CN107502385A (en) * | 2017-09-12 | 2017-12-22 | 苏州诺力达工程技术服务有限公司 | A kind of oil filter plant |
| CN109011737A (en) * | 2018-08-29 | 2018-12-18 | 戚汝常 | It is a kind of for purifying the more filter cylinder filter devices and method of sewage |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5061366A (en) * | 1989-04-28 | 1991-10-29 | Arai Corporation | Scraper filter system |
| CN2214288Y (en) * | 1994-08-13 | 1995-12-06 | 化学工业部上海化工研究院 | Cone type continuous filter press |
| US5510030A (en) * | 1992-02-14 | 1996-04-23 | Bacher; Helmut | Filter apparatus for flowable material |
| CN1372485A (en) * | 2000-04-27 | 2002-10-02 | 日本原料株式会社 | Filtration device, and method of cleaning filter material container in filtration device |
| JP2009022934A (en) * | 2007-07-23 | 2009-02-05 | Tsukishima Kikai Co Ltd | Filter apparatus |
| CN101934162A (en) * | 2009-06-30 | 2011-01-05 | 日本那贺株式会社 | Water treatment device and method for cleaning filtration material layer for water treatment device |
| CN201719872U (en) * | 2010-03-23 | 2011-01-26 | 卢正华 | One-valve control filter |
| CN102582105A (en) * | 2012-01-18 | 2012-07-18 | 张家港方圣机械有限公司 | Squeezing type dewatering machine |
| CN103055556A (en) * | 2012-12-28 | 2013-04-24 | 东北石油大学 | Waterpower dynamic backwashing device of filter and backwashing method therefor |
| CN203694693U (en) * | 2014-01-23 | 2014-07-09 | 胡国荣 | Filter capable of replacing filter material randomly, continuously and movably |
-
2014
- 2014-01-23 CN CN201410031502.0A patent/CN103721453B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5061366A (en) * | 1989-04-28 | 1991-10-29 | Arai Corporation | Scraper filter system |
| US5510030A (en) * | 1992-02-14 | 1996-04-23 | Bacher; Helmut | Filter apparatus for flowable material |
| CN2214288Y (en) * | 1994-08-13 | 1995-12-06 | 化学工业部上海化工研究院 | Cone type continuous filter press |
| CN1372485A (en) * | 2000-04-27 | 2002-10-02 | 日本原料株式会社 | Filtration device, and method of cleaning filter material container in filtration device |
| JP2009022934A (en) * | 2007-07-23 | 2009-02-05 | Tsukishima Kikai Co Ltd | Filter apparatus |
| CN101934162A (en) * | 2009-06-30 | 2011-01-05 | 日本那贺株式会社 | Water treatment device and method for cleaning filtration material layer for water treatment device |
| CN201719872U (en) * | 2010-03-23 | 2011-01-26 | 卢正华 | One-valve control filter |
| CN102582105A (en) * | 2012-01-18 | 2012-07-18 | 张家港方圣机械有限公司 | Squeezing type dewatering machine |
| CN103055556A (en) * | 2012-12-28 | 2013-04-24 | 东北石油大学 | Waterpower dynamic backwashing device of filter and backwashing method therefor |
| CN203694693U (en) * | 2014-01-23 | 2014-07-09 | 胡国荣 | Filter capable of replacing filter material randomly, continuously and movably |
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