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WO1990008587A1 - Filtre a rinçage par contre-courant - Google Patents

Filtre a rinçage par contre-courant Download PDF

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Publication number
WO1990008587A1
WO1990008587A1 PCT/EP1990/000165 EP9000165W WO9008587A1 WO 1990008587 A1 WO1990008587 A1 WO 1990008587A1 EP 9000165 W EP9000165 W EP 9000165W WO 9008587 A1 WO9008587 A1 WO 9008587A1
Authority
WO
WIPO (PCT)
Prior art keywords
filter
filter wall
bridge
basin
backwashing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP1990/000165
Other languages
German (de)
English (en)
Inventor
Klaus-Dieter Meyer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Linde GmbH
Original Assignee
Linde GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Linde GmbH filed Critical Linde GmbH
Publication of WO1990008587A1 publication Critical patent/WO1990008587A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
    • B01D29/52—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in parallel connection
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
    • B01D29/52—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in parallel connection
    • B01D29/54—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in parallel connection arranged concentrically or coaxially
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/60—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor integrally combined with devices for controlling the filtration
    • B01D29/605—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor integrally combined with devices for controlling the filtration by level measuring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/62—Regenerating the filter material in the filter
    • B01D29/66—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
    • B01D29/68—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps with backwash arms, shoes or nozzles
    • B01D29/682—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps with backwash arms, shoes or nozzles with a rotary movement with respect to the filtering element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/62—Regenerating the filter material in the filter
    • B01D29/66—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
    • B01D29/68—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps with backwash arms, shoes or nozzles
    • B01D29/684—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps with backwash arms, shoes or nozzles with a translatory movement with respect to the filtering element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/62—Regenerating the filter material in the filter
    • B01D29/66—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
    • B01D29/68—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps with backwash arms, shoes or nozzles
    • B01D29/688—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps with backwash arms, shoes or nozzles with backwash arms or shoes acting on the cake side
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/28—Position of the filtering element
    • B01D2201/287—Filtering elements with a vertical or inclined rotation or symmetry axis

Definitions

  • the invention relates to a device for removing solids from a liquid with a basin for holding the liquid, which is divided into at least two chambers by means of at least one filter wall, a backwashing device being arranged on the filter wall.
  • Filter arrangements for filtering liquids laden with solids are known. Filter arrangements are often used in wastewater treatment and drinking water treatment in order to remove Suspensa from physically / chemically or biologically pre-treated wastewater or drinking water. Residual contents of organic contaminants, which occur in suspended form, and germs are removed from the wastewater or drinking water, so that the quality of the wastewater which has already been pre-cleaned is further improved.
  • Such filter arrangements usually consist of a basin which is divided into at least one clear water chamber and at least one dirty water chamber by means of at least one filter wall.
  • the liquid to be filtered is in the Dirty water chamber introduced, flows through the filter wall and is collected as a cleaned liquid in the clear water chamber.
  • the filter wall conventionally consists of a filter frame which is covered with a filter cloth. By loading the filter cloth in solids, the filter resistance increases, so that less and less liquid can flow through the filter wall. Therefore, the filter must be cleaned from time to time to remove the solids adhering to the filter cloth.
  • a backwashing device is usually provided, which consists of two backwashing bars resting on the filter wall, namely a spray water bar and a sludge water removal bar.
  • the filter cloth with the water that has already been filtered is sprayed from the clear water chamber by means of the spray water bar.
  • the solids rinsed out in this way are sucked off and removed by means of the sludge water removal bar.
  • backwash bars are moved vertically over the filter wall by means of chains and deflection rollers arranged under the liquid level.
  • Backwashing devices of this type are complex in terms of equipment and are therefore expensive and maintenance-intensive. Maintenance is also made more difficult by drive elements such as chains and pulleys located below the liquid level.
  • the present invention is therefore based on the object of designing a device of the type mentioned at the outset in such a way that the disadvantages of conventional filter arrangement described do not occur.
  • This object is achieved in that the backwashing device is attached to a bridge which is arranged above the liquid level and can be moved along the filter wall.
  • the backwashing device is moved horizontally along the filter wall by moving the bridge.
  • the backwashing device is expediently constructed from vertically arranged backwash bars, which essentially extend over the entire height of the filter wall.
  • the backwashing bars consist of at least one splashing water bar and at least one sludge removal bar, which are arranged on both sides of the filter wall in such a way that they face each other. On the opposite side, the washed-out solids are sucked off using the sludge water removal bar.
  • the vertically arranged backwash bars are moved horizontally over the filter wall. In this way, even large filter walls that extend the full length of a pool several meters long can be cleaned economically. If the pool is designed as a rectangular pool, it is advantageous to mount the bridge on the top of the pool with wheels. In this way, the backwashing device hanging on the bridge can be moved horizontally along the filter wall by moving the bridge, without any drive elements having to be below the liquid level.
  • the pool as a circular pool and to rotate the bridge on the central axis of the circular pool and to mount it on the pool edge with wheels.
  • the filter wall or the filter walls are arranged in a cylinder shape in the basin, the central axis of the round basin also representing the cylinder axis.
  • the backwashing device hanging on the bridge is horizontally removed for cleaning the filter wall by rotating the bridge around the central axis of the round basin on the filter wall.
  • pumps, pipelines, valves, etc. are required to supply the backwashing device with flushing water and to remove the flushed out solids.
  • These devices are expediently installed on and / or on a bridge. This has the advantage that the devices are outside the liquid and are easily accessible for maintenance. In addition, they can be moved with the bridge in this way, so that short connecting lines to the backwashing device are sufficient.
  • the pumps and pipelines installed on the bridge on the one hand, connect the backwashing device to a flushing water inlet, which is preferably connected to a collecting channel for filtered liquid is connected, and on the other hand a filtrate drain.
  • the backwashing device has rollers running on the filter wall, through which the backwashing device is at a short distance, e.g. a few mm, is held by the filter wall.
  • level meters are provided on both sides of the filter wall, which are connected to a control unit. This enables control of the backwash depending on the level difference of the liquid on both sides of the filter wall and thus on the filter resistance. If the filter resistance exceeds a certain value, the control unit switches on the pump, which supplies the backwashing device with rinsing water and aspirates the flushed out solids.
  • an electric motor is started that moves the bridge along the filter wall.
  • a plurality of filter walls are expediently installed in parallel in the basin, so that there are several filter chambers through which the liquid flows along the filter walls.
  • Each of the filter walls has a backwashing device which is attached to the bridge.
  • the device according to the invention is a robust construction which requires little equipment and has no rotating parts below the liquid level.
  • the device does not need a chain drive, racks, etc., which tends to wear heavily.
  • Overall, the device is easy to maintain and does not require repairs.
  • Economical cleaning is also possible with large filter walls, e.g. in rectangular pools several meters long.
  • the device according to the invention can advantageously be used in the post-treatment of waste water and for the treatment of drinking water. However, it can also be used in flocculation filtration, with the addition of flocculants to the liquid to be treated flocculating certain substances which are then filtered out using the device according to the invention. It is also possible to add the flocculants directly to the filter basin so that flocculation and filtration are combined in one device.
  • Figure 1 is a plan view of a rectangular basin with several filter walls.
  • Figure 2 shows a section through a rectangular basin with several filter walls.
  • Figure 3 is a plan view of a circular basin with circular filter walls.
  • the rectangular basin 1 shown in FIG. 1 has a plurality of filter walls 2 arranged in parallel, which form a plurality of dirty water chambers 3 and clear water chambers 4.
  • the too Cleaning liquid in the present exemplary embodiment biologically pre-cleaned waste water, is introduced into the dirty water chamber 3 via a distributor 5.
  • the waste water flows in each case through the filter walls 2 covered with filter cloth in clear water chambers 4.
  • the waste water thus filtered is finally collected in a clear water channel 6 and drawn off via a clear water.
  • the bridge 8 On the upper edges 9 of the basin 1, the bridge 8 is supported by wheels and can be moved in the longitudinal direction of the basin by means of an electric motor (not shown).
  • Vertically arranged spray water bars 10 and sludge water removal bars 11 are fastened to the bridge.
  • Each filter wall 2 is assigned a spray water ball 10 on the side of the clear water chamber 4 and an opposite sludge water beam 11 on the side of the dirty water comb 3.
  • the spray water bars 10 and sludge water removal bars 11 extend over the entire height of the filter walls 2 and can be moved along the filter walls 2 by moving the bridge.
  • the spray water bar 10 are connected to the clear run 7 via rinse water supply lines 12 which are mounted on the bridge.
  • the sludge water removal bars 11 are connected to a collecting trough 15 via a filtrate drain 14.
  • a filtrate drain 14 For backwashing the filter walls 2, already filtered wastewater is removed from the Klarl 7 and fed to the spray water bar 10 via the rinse water supply lines 12 and pump 13. The flushed out solids are sucked off by means of the sludge water removal bar 11 and delivered to the collecting trough 15 via the filtrate discharge lines 14 and pump 16. The filtrate drawn off from the collecting trough 15 is finally fed to a further treatment.
  • the same device as in Figure 1 is shown in section. The same parts of the system are designated with the same reference numbers.
  • the fill level meters 17 are connected to a control unit 18, which in turn is connected to an electric motor, not shown.
  • valves 19 are provided, which are also switched by the control unit 18. In this way, the filter walls 2 can be backwashed specifically, which have too high filter resistance, the control unit 18 starts the electric motor (not shown), which moves the bridge 8 and thus the vertically arranged backwashing beams 11 horizontally along the filter walls.
  • the filter walls 2 are arranged in a circle, as is the distributor 5, the clear run 7 and the collecting channel 15 for the filtrate.
  • the distribution channel 5 has a distribution line 24 and the Klarlau has a manifold 23.
  • the waste water to be filtered is added to the distribution channel 15 via an inlet line 20.
  • D filtered waste water is withdrawn via line 21.
  • the bridge is rotatably supported in the central axis 22 of the circular pool 1 on the pool edge 9 on wheels.
  • the bridge 8 can be moved in a circle along the filter walls by means of an electric motor (not shown).
  • the spray water bar 10 and sludge water removal bar 11 are arranged analogously to Figures 1 and 2. The same applies to pumps 13 and 16.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtration Of Liquid (AREA)

Abstract

Filtre à rinçage par contre-courant pour purifier des liquides. Ce filtre comporte une cuve (1) contenant le liquide, qui est subdivisée en au moins deux chambres (3, 4) par au moins une paroi de filtre (2). Pour rincer le filtre par contre-courant, on a prévu un dispositif de rinçage par contre-courant (10, 11) fixé sur un pont (8) mobile le long de la paroi de filtre (2), au-dessus du niveau du liquide; ce dispositif se déplace horizontalement le long de la paroi de filtre (2).
PCT/EP1990/000165 1989-01-31 1990-01-30 Filtre a rinçage par contre-courant Ceased WO1990008587A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP3902829.1 1989-01-31
DE3902829A DE3902829A1 (de) 1989-01-31 1989-01-31 Rueckspuelbarer filter

Publications (1)

Publication Number Publication Date
WO1990008587A1 true WO1990008587A1 (fr) 1990-08-09

Family

ID=6373145

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1990/000165 Ceased WO1990008587A1 (fr) 1989-01-31 1990-01-30 Filtre a rinçage par contre-courant

Country Status (2)

Country Link
DE (1) DE3902829A1 (fr)
WO (1) WO1990008587A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0479077A1 (fr) * 1990-10-05 1992-04-08 Schwelm Anlagen + Apparate Gmbh Filtre sous pression avec régéneration en continu des surfaces filtrantes
EP0498037A1 (fr) * 1991-02-04 1992-08-12 ECOTECNICA S.r.l. Section de filtration pour la purification d'eau résiduaire
EP0529398A3 (en) * 1991-08-26 1993-04-28 Filterwerk Mann & Hummel Gmbh Liquid filter
EP0629426A1 (fr) * 1993-05-26 1994-12-21 Martin Kiefel Appareil de filtration
EP0908213A1 (fr) * 1997-10-09 1999-04-14 Allegri Geom. Primo S.r.l. Installation statique pour la filtration des liquides
US7871527B2 (en) * 2002-12-26 2011-01-18 Aqua-Aerobic Systems, Inc. Processes for water and wastewater treatment, including stationary cloth media filtration
US8329045B2 (en) * 2003-06-05 2012-12-11 Aqua-Aerobic Systems, Inc. Stationary cloth media filtration
US10016706B2 (en) 2014-09-03 2018-07-10 Alfa Laval Corporate Ab Disk type filtering apparatus

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITPR20000069A1 (it) * 2000-12-21 2002-06-21 Allegri Geom Primo S R L Impianto di filtrazione statica di liquidi.
US7807050B2 (en) 2002-12-26 2010-10-05 Aqua-Aerobic Systems, Inc. Backwash assembly and method having a rotating backwash arm for cleaning cloth filter media
US7833424B1 (en) 2002-12-26 2010-11-16 Aqua-Aerobic Systems, Inc. Backwash assembly and method having a rotating backwash arm for cleaning cloth filter media
ITPR20050069A1 (it) * 2005-11-15 2007-05-16 Allegri Geom Primo S R L Procedimento ed impianto per la chiarificazione e filtrazione dei fluidi in una unica vasca.
ITPR20060044A1 (it) * 2006-05-17 2007-11-18 Allegri Geom Primo S R L Impianto di filtrazione statica di liquidi.
US9962633B2 (en) * 2014-09-03 2018-05-08 Alfa Laval Corporate Ab Disk type filtering apparatus
CN108104249B (zh) * 2017-12-15 2020-09-15 佛山市万良商贸有限公司 一种污水处理厂的拦污栅栏

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE21652E (en) * 1940-12-03 Method and apparatus for
DE1255085B (de) * 1962-09-11 1967-11-30 E & M Lamort Fils Soc Filter fuer Fluessigkeiten, die feine Festteilchen in Suspension enthalten
NL8103750A (nl) * 1981-08-10 1983-03-01 Stork Serv Bv Werkwijze en inrichting voor het afscheiden van tenminste een mediumcomponent uit een mengsel van mediumcomponenten.
EP0218034A1 (fr) * 1985-08-19 1987-04-15 INTERATOM Gesellschaft mit beschränkter Haftung Purification de plaques filtrantes
EP0265385A1 (fr) * 1986-10-17 1988-04-27 Werner Nill Appareil pour le nettoyage d'un filtre ou d'une grille dans une installation d'épuration d'eau

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE21652E (en) * 1940-12-03 Method and apparatus for
DE1255085B (de) * 1962-09-11 1967-11-30 E & M Lamort Fils Soc Filter fuer Fluessigkeiten, die feine Festteilchen in Suspension enthalten
NL8103750A (nl) * 1981-08-10 1983-03-01 Stork Serv Bv Werkwijze en inrichting voor het afscheiden van tenminste een mediumcomponent uit een mengsel van mediumcomponenten.
EP0218034A1 (fr) * 1985-08-19 1987-04-15 INTERATOM Gesellschaft mit beschränkter Haftung Purification de plaques filtrantes
EP0265385A1 (fr) * 1986-10-17 1988-04-27 Werner Nill Appareil pour le nettoyage d'un filtre ou d'une grille dans une installation d'épuration d'eau

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0479077A1 (fr) * 1990-10-05 1992-04-08 Schwelm Anlagen + Apparate Gmbh Filtre sous pression avec régéneration en continu des surfaces filtrantes
EP0498037A1 (fr) * 1991-02-04 1992-08-12 ECOTECNICA S.r.l. Section de filtration pour la purification d'eau résiduaire
EP0529398A3 (en) * 1991-08-26 1993-04-28 Filterwerk Mann & Hummel Gmbh Liquid filter
EP0629426A1 (fr) * 1993-05-26 1994-12-21 Martin Kiefel Appareil de filtration
EP0908213A1 (fr) * 1997-10-09 1999-04-14 Allegri Geom. Primo S.r.l. Installation statique pour la filtration des liquides
US7871527B2 (en) * 2002-12-26 2011-01-18 Aqua-Aerobic Systems, Inc. Processes for water and wastewater treatment, including stationary cloth media filtration
US8329045B2 (en) * 2003-06-05 2012-12-11 Aqua-Aerobic Systems, Inc. Stationary cloth media filtration
US9776108B2 (en) 2003-06-05 2017-10-03 Aqua-Aerobic Systems, Inc. Stationary cloth media filtration
US10016706B2 (en) 2014-09-03 2018-07-10 Alfa Laval Corporate Ab Disk type filtering apparatus

Also Published As

Publication number Publication date
DE3902829A1 (de) 1990-08-02

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