DE904648C - Liquid filter - Google Patents

Liquid filter

Info

Publication number
DE904648C
DE904648C DEP6284D DEP0006284D DE904648C DE 904648 C DE904648 C DE 904648C DE P6284 D DEP6284 D DE P6284D DE P0006284 D DEP0006284 D DE P0006284D DE 904648 C DE904648 C DE 904648C
Authority
DE
Germany
Prior art keywords
filter
regeneration
during
liquid
mass
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.)
Expired
Application number
DEP6284D
Other languages
German (de)
Inventor
Alfred Kretzschmar
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DEP6284D priority Critical patent/DE904648C/en
Application granted granted Critical
Publication of DE904648C publication Critical patent/DE904648C/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D24/00Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
    • B01D24/46Regenerating the filtering material in the filter
    • B01D24/4631Counter-current flushing, e.g. by air
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D24/00Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
    • B01D24/02Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration
    • B01D24/10Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration the filtering material being held in a closed container
    • B01D24/12Downward filtration, the filtering material being supported by pervious surfaces
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2201/00Details relating to filtering apparatus
    • B01D2201/08Regeneration of the filter
    • B01D2201/087Regeneration of the filter using gas bubbles, e.g. air

Landscapes

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

Description

Die Erfindung bezieht sich auf Flüssigkeitsfilter in geschlossener Ausführung, deren Filtermasse nach Erschöpfung regeneriert und gespült wird. The invention relates to closed liquid filters Version whose filter material is regenerated and rinsed after it is exhausted.

Der Nachteil der bekannten Filter dieser Art besteht darin, daß der über der Filtermasse vorhandene Steigraum, der bei der Durchführung einer einwandfreien wäsche der Filtermasse unbedingt erforderlich ist, während der Filtration und Regenerierung jedoch schädlich ist, da die zu filtrierende Lösung stagnieren und zu Keimanreicherungen und Fäulniserscheinungen oder Alterserscheinungen Anlaß geben würde. The disadvantage of the known filter of this type is that the There is a rise space above the filter mass, which when carrying out a faultless washing of the filter mass is absolutely necessary during the filtration and regeneration however, it is detrimental because the solution to be filtered stagnates and leads to the accumulation of germs and would give rise to signs of putrefaction or signs of age.

Die Erfindung beruht nun darauf, diesen an sich während der Filtration und auch während der Regenerierung schädlichen Raum vorübergehend zu beseitigen. Das wird nun dadurch erreicht, daß der über der Filtermasse vorhandene Flüssigkeitssteigraum vermittels eines Luftpolsters auf den für die Filtrierung und Regenerierung erforderlichen Flüssigkeitsstand verringerbar ist. Für die Filterwäsche hingegen ist das Luftpolster ablaßbar, so daß der Steigraum für die Aufschwemmung der Filtermasse zur Verfügung steht. Ein weiteres Merkmal der Erfindung ist darin zu erblicken, daß die Filtratzuführungsleitung, deren Eintrittsstelle sich unmittelbar über der Oberkante der Filtermasse befindet, über der Filteroberkante zugeführt ist. The invention is based on this per se during the filtration and also to temporarily eliminate harmful space during regeneration. This is now achieved in that the liquid rising space present above the filter mass by means of an air cushion on the ones required for filtration and regeneration Fluid level can be reduced. On the other hand, the air cushion is used for filter washing drainable, so that the riser space for the suspension of the filter material is available stands. Another feature of the invention can be seen in the fact that the filtrate feed line, whose entry point is directly above the upper edge of the filter mass, is fed over the upper edge of the filter.

Durch diese Hochführung der Leitung wird vermieden, daß während der Filterwäsche Filtermasse in die Zuführungsleitungen für die zu filtrierende Flüssigkeit oder in die Regenerierleitungen gelangt.By this raising the line it is avoided that during the Filter wash filter material in the supply lines for the liquid to be filtered or gets into the regeneration lines.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung wiedergegeben. Es zeigt Fig. I einen Schnitt durch ein Filter nach der Erfindung während der Filtration und Regenerierung, Fig. 2 den Filterschnitt gemäß Fig. 1. jedoch während der Filterwäsche. An embodiment of the invention is shown in the drawing. It shows Fig. I a section through a filter according to the invention during filtration and regeneration, FIG. 2 shows the filter cut according to FIG. 1, but during the filter washing.

Die Filtration und Regenerierung erfolgt in üblicher Weise von oben nach unten, jedoch die Filterwäsche von unten nach oben. The filtration and regeneration take place in the usual way from above down, but the filter wash from bottom to top.

Der über der Filtermasse I befindliche Steigraum 2 wird während der Filtration und Regenerierung der Filtermasse durch ein Luftpolster 3 beseitigt, so daß unmittelbar über der Filtermasse nur ein medriger Flüssigkeitsstand> während der Filtration und Regenerierung unterhalten wird. An den Stutzen 5 wird die Luftleitung angeschlossen an Flansch 6 die Zuflußleitung der zu filtrierenden Flüssigkeit, an Flansch 7 die Regenerierlösung, während die Leitung 8 für die Abführung des Filtrats dient und die Leitung g für die Abführung der Flüssigkeit. Die Filterwäsche kann entweder durch Rücklauf aus der Filtratsleitung Sl mit oder ohne Zuteilung von Druckluft durch Öffnen des Ventils io erfolgen. Durch Hochführen der Leitung 1 1 wird vermieden, daß während der Filterwäsche Filtermasse in die Zuführungsleitungen für die zu filtrierende Flüssigkeit oder die Regenerierleitungen gelangt. The rising space 2 located above the filter mass I is during the Filtration and regeneration of the filter mass eliminated by an air cushion 3, so that immediately above the filter mass only a medriger liquid level> during the filtration and regeneration is maintained. The air line is attached to the nozzle 5 connected to flange 6, the inflow line of the liquid to be filtered Flange 7 the regeneration solution, while the line 8 for the discharge of the filtrate serves and the line g for the discharge of the liquid. The filter wash can either by return from the filtrate line Sl with or without the allocation of compressed air by opening the valve io. By leading up the line 1 1 it is avoided that during the filter washing filter mass in the supply lines for the to be filtered Liquid or the regeneration lines.

Es ist bei der Filtration von Lösungen Voraussetzung, daß über der Filtermasse sich kein unnötiger toter Raum befindet, da sonst die zu filtrierende Lösung stagniert und zu Keimanreicherungen und Fäulniserscheinungen oder Alterserscheinungen Anlaß gibt. Dies wird durch die Unterhaltung des Luftpolsters 3 während der Filtration vermieden. Es ist ferner wichtig, daß während der Regenerierung der Filtermasse mit chemischen Lösungen eine Verdünnung der Regenerierlösung durch den über der Filtermasse befindlichen Steigraum vermieden wird. Dies wird ebenfalls durch die Unterhaltung des Luftpolsters 3 während der Regenlerierung erreicht. Ein weiterer Vorteil der Erfindung besteht darin, daß während der Filterwäsche der hierfür unbedingt nötige Steigraum über der Filtermasse wieder zur Verfügung steht, um der Filtermasse die Möglichkeit, sich nach oben genügend auszudehnen, zu geben und während der Filterwäsche Materialverluste zu verhindern. Die Abführung des Spülwassers erfolgt durch ein ientral angeordnetes Standrohr 12, dessen Uberlaufglocke I3 sich so hoch über der aufgeschwemmten Filtermasse befindet, daß diese nicht in den Ablauf mitgerissen werden kann. Durch Öffnen des Entlüftungshahnes 14 wird vor der Filterwäsche das Luftpolster entfernt. When filtering solutions, it is a prerequisite that above the Filter material there is no unnecessary dead space, otherwise the filter material to be filtered Solution stagnates and leads to accumulation of germs and signs of putrefaction or signs of aging Cause. This is done by maintaining the air cushion 3 during the filtration avoided. It is also important that during the regeneration of the filter mass with chemical solutions a dilution of the regeneration solution through the over the Filter mass located rise space is avoided. This is also supported by the Maintenance of the air cushion 3 achieved during regeneration. Another The advantage of the invention is that this is essential during the filter washing necessary rise space above the filter material is available again to the filter material the opportunity to expand upwards enough to give and during the filter wash To prevent material loss. The rinsing water is discharged through a ientrally arranged standpipe 12, whose overflow bell I3 is so high above the floating filter material is located so that it is not carried away into the drain can be. By opening the vent valve 14, the Air cushion removed.

PATENTANSPCHE: I. Flüssigkeitsfilter zur Durchführung von Filtration, Regenerierung und Wäsche von Filtermasse, dadurch gekennzeichnet, daß der über der Filtermasse vorhandene Flüssigkeitssteigraum (2) vermittels eines Luftpolsters (3) auf den für die Filtration und Regenerierung erforderlichen Flüssigkeitsstand (4) verringerbar ist. PATENT APPLICATION: I. Liquid filter for carrying out filtration, Regeneration and washing of filter material, characterized in that the above Filter mass existing liquid rising space (2) by means of an air cushion (3) to the liquid level required for filtration and regeneration (4) is reducible.

Claims (1)

2. Flüssigkeitsfilter nach Anspruch I, dadurch gekennzeichnet, daß für die Filterwäsche das Luftpolster (3) ablaßbar ist, so daß der Steigraum (2) für die Aufschwemmung der Filtermasse (i) zur Verfügung steht. 2. Liquid filter according to claim I, characterized in that for filter washing the air cushion (3) can be drained so that the riser space (2) for the suspension of the filter mass (i) is available. 3. Flüssigkeitsfilter nach Anspruch I und 2. dadurch gekennzeichnet, daß die Filtratzuführungsleitung (11), deren Eintrittsstelle (I5) sich unmittelbar über der Oberkante der Filtermasse befindet, über der Filteroberkante zugeführt ist. 3. Liquid filter according to claim I and 2. characterized in that that the filtrate feed line (11), whose entry point (I5) is directly located above the upper edge of the filter mass, fed over the upper edge of the filter is. Angezogene Druckschriften: USA.-Patentschrift Nr. 2 365 22I. References: U.S. Patent No. 2,365,222I.
DEP6284D 1948-10-02 1948-10-02 Liquid filter Expired DE904648C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEP6284D DE904648C (en) 1948-10-02 1948-10-02 Liquid filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP6284D DE904648C (en) 1948-10-02 1948-10-02 Liquid filter

Publications (1)

Publication Number Publication Date
DE904648C true DE904648C (en) 1954-02-22

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Family Applications (1)

Application Number Title Priority Date Filing Date
DEP6284D Expired DE904648C (en) 1948-10-02 1948-10-02 Liquid filter

Country Status (1)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1055504B (en) * 1955-01-12 1959-04-23 Forschungsgesellschaft Der Wab Mud trough with overflow pipes for backwashable filter systems
DE1142797B (en) * 1961-01-12 1963-01-24 Forschungsgesellschaft Der Wab Device for purifying water using a suspended solids contact system and method for backwashing the same
DE1284397B (en) * 1958-09-29 1968-12-05 Octrooien Mij Activit Nv Liquid filter with grainy filter material
DE1642844B1 (en) * 1967-02-03 1972-01-20 Maschinefabriek Reineveld N V Cleaning device for liquids with grainy ion exchange mass and drainage grate
DE3007007A1 (en) * 1980-02-25 1981-09-03 Georg 5275 Bergneustadt Plura Cleaning water-filtering material - by downward flush of water produced by sudden release of internal air pressure
DE102004025998A1 (en) * 2004-05-27 2005-12-29 Wallace & Tiernan Gmbh Filtration of swimming pool water through packed bed, introduces gas under pressure into reservoir head space to displace corresponding quantity of water

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2365221A (en) * 1942-02-28 1944-12-19 Dorr Co Inc Apparatus and method for conducting ionic exchange operations

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2365221A (en) * 1942-02-28 1944-12-19 Dorr Co Inc Apparatus and method for conducting ionic exchange operations

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1055504B (en) * 1955-01-12 1959-04-23 Forschungsgesellschaft Der Wab Mud trough with overflow pipes for backwashable filter systems
DE1284397B (en) * 1958-09-29 1968-12-05 Octrooien Mij Activit Nv Liquid filter with grainy filter material
DE1142797B (en) * 1961-01-12 1963-01-24 Forschungsgesellschaft Der Wab Device for purifying water using a suspended solids contact system and method for backwashing the same
DE1642844B1 (en) * 1967-02-03 1972-01-20 Maschinefabriek Reineveld N V Cleaning device for liquids with grainy ion exchange mass and drainage grate
DE3007007A1 (en) * 1980-02-25 1981-09-03 Georg 5275 Bergneustadt Plura Cleaning water-filtering material - by downward flush of water produced by sudden release of internal air pressure
DE102004025998A1 (en) * 2004-05-27 2005-12-29 Wallace & Tiernan Gmbh Filtration of swimming pool water through packed bed, introduces gas under pressure into reservoir head space to displace corresponding quantity of water
DE102004025998B4 (en) * 2004-05-27 2007-04-12 Siemens Ag Method and device for filtering process water

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