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DE3004614A1 - Filter for liquids - where filtration medium consists of filling located between two perforated plates in filter tank, and floating on liq. to be filtered - Google Patents

Filter for liquids - where filtration medium consists of filling located between two perforated plates in filter tank, and floating on liq. to be filtered

Info

Publication number
DE3004614A1
DE3004614A1 DE19803004614 DE3004614A DE3004614A1 DE 3004614 A1 DE3004614 A1 DE 3004614A1 DE 19803004614 DE19803004614 DE 19803004614 DE 3004614 A DE3004614 A DE 3004614A DE 3004614 A1 DE3004614 A1 DE 3004614A1
Authority
DE
Germany
Prior art keywords
filter
filter according
liq
liquids
filling
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.)
Withdrawn
Application number
DE19803004614
Other languages
German (de)
Inventor
Hans 4720 Beckum Nowatzyk
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 DE19803004614 priority Critical patent/DE3004614A1/en
Publication of DE3004614A1 publication Critical patent/DE3004614A1/en
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
    • B01D24/02—Filters 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
    • B01D24/10—Filters 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
    • B01D24/16—Upward filtration
    • B01D24/165—Upward filtration the filtering material being supported by pervious surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
    • B01D24/46—Regenerating the filtering material in the filter
    • B01D24/4631—Counter-current flushing, e.g. by air
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
    • B01D24/46—Regenerating the filtering material in the filter
    • B01D24/4668—Regenerating the filtering material in the filter by moving the filtering element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
    • B01D24/46—Regenerating the filtering material in the filter
    • B01D24/4668—Regenerating the filtering material in the filter by moving the filtering element
    • B01D24/4684—Regenerating the filtering material in the filter by moving the filtering element using spray devices

Landscapes

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

Abstract

A liq. contg. solids in suspension is fed into a vessel contg. a filling which functions as the filter medium. The filling pref. has a lower density than the liq., so it floats on the latter and forms a cushion through which the liq. flows upwards to an exit. The filling pref. consists of objects which are elastic, permeable, and possess a nap or pile; and the objects are pref. located below a sieve plate which can be driven vertically, either by mechanical means or by a hydraulic cylinder. Easy cleaning of the filter medium is obtd.

Description

Erfindungsbeschreibung Description of the invention

Die Erfindung betrifft einen Filter insbesondere zur Filtration von Flüssigkeiten, bei dem die Trübe durch ein Filtermedium, vorzugsweise durch ein Polstervon Filterftillkörpern, strömt. Diese sind erfindungsgemäß in einem Raum untergebracht, der größer ist wie das Volumen der Filterfüllkörper.The invention relates to a filter in particular for the filtration of Liquids in which the turbidity through a filter medium, preferably through a Cushions from filter bodies, flows. According to the invention, these are in one room housed, which is larger than the volume of the filter packing.

Filter sind in den unterschiedlichsten Ausführungen bekannt, wie z. B.Filters are known in a wide variety of designs, such. B.

Filterpressen, Taschenfilter, Vakuumfilter, Ausschwemmfilter, Kerzenfilter etc. Allen bekannten Filtern ist jedoch gemeinsam, daß die Trennung Trübraum - Filtratraum durch ein -geschlossenes Filtermedium, z. B. Filtertücher, Filtergewebe, Filterpatrone, erfolgt.Filter presses, pocket filters, vacuum filters, flushing filters, candle filters etc. However, all known filters have in common that the separation of the turbid chamber and the filtrate chamber through a closed filter medium, e.g. B. filter cloths, filter fabrics, filter cartridges, he follows.

So lange die zu eliminierenden Schmutzteilchen Eigenschaften besitzen, die den Aufbau eines durchlässigen Filterhilfskuchen ermöglichen, arbeiten alle Filter ohne Schwierigkeiten. Schwierig wird die Filtration aber, wenn Schmutzteilchen in einer Trübe vorhanden sind, die ebenso druckempfindlich, schleimig, wie koloidal beschaffen sind. Solche auf das Filtermedium auffiltrierten Schmutzteilchen bilden einen Filterkuchen, der bei geringstem Druck den Filtervorgang blockieren. In solchen Fällen kann mit Filterhilfsmitteln eine Standzeitverlängerung erreicht werden.As long as the dirt particles to be eliminated have properties, which allow the build-up of a permeable filter aid cake all work Filter without difficulty. Filtration becomes difficult, however, when dirt particles are present are present in a turbidity which is just as sensitive to pressure, slimy as it is coloidal are made. Such dirt particles which are filtered onto the filter medium form a filter cake that blocks the filtering process at the lowest pressure. In such In some cases, filter aids can be used to extend the service life.

Es entsteht ein Mehraufwand durch Filterhilfsmittelverbrauch aber auch an Apparateaufwand.However, there is additional work due to the consumption of filter aids also in terms of equipment.

Erfindungsgemäß hat es sich als besonders zweckmäßig erwiesen, die Trennung Trübraum - Filtratraum nicht mehr wie bisher durch eine geschlossene Filterfläche, Tuch - Gewebe etc., vorzunehmen, vielmehr durch geeignete Filterfüllkörper, die locker aneinander und übereinander liegen, die die Eigenschaft haben auf der Trübe zu schwimmen und von der Trübe durchströmt, aber auch umströmt werden können. Ebenso sollen die Filterfüllkörper erfindungsgemäB eine gewisse Elastizität haben, denn ein sich bildender Filterhilfskuchen kann dann durch Druckeinwirkung der Trübe zerstört werden und der Filterprozeß kann dadurch in einer anderen Ebene der Filterfüllkörper fortgesetzt werden.According to the invention, it has proven to be particularly useful that Separation of the turbid chamber and the filtrate chamber no longer as before by a closed filter surface, Cloth - fabric, etc., to make, rather through suitable filter fillers that lie loosely against each other and on top of each other, which have the property of being on the turbidity to swim and the turbidity flows through, but can also be flowed around. as well the filter filler should have a certain elasticity according to the invention, because A filter aid cake that forms can then be destroyed by the action of pressure on the pulp and the filter process can thereby be in a different level of the filter packing be continued.

Der Raum in dem die Filterfüllkörper eingebracht sind, ist kein Druckkörper. Der Trübezulauf erfolgt von unten und ist abgedeckt durch ein Siebboden. Nach oben hin ist der Füllkörperraum erfindungsgemäß begrenzt durch ein Siebboden, der hydraulisch in der Vertikalen bewegt werden kann. Die Trübe durchströmt den mit Filterfüllkörpern vorzugsweise zu 4/5 gefüllten Raum von unten nach oben und schwemmt auf diese Weise die Filterfüllkörper an das obere Begrenzungssieb. Filtrat tritt durch das Polster und wird seitlich durch freien Fall abgeführt. Schmutzteilchen lagern sich nun an und in den Filterfüllkörpern ab. Entsprechend der Menge, Beschaffenheit und Formgebung der Filterfüllkörper kann erfindungsgemäß die gewünschte Filterintensität bestimmt werden.The space in which the filter filling bodies are introduced is not a pressure body. The sludge inlet is from below and is covered by a sieve bottom. Up according to the invention, the packing space is delimited by a sieve bottom which is hydraulically can be moved vertically. The pulp flows through the filter filler preferably to 4/5 filled space from bottom to top and washes in this way the filter filler to the upper limiting sieve. Filtrate passes through the cushion and is discharged sideways by free fall. Dirt particles are now deposited and in the filter packing. According to the quantity, texture and shape the filter filling body can determine the desired filter intensity according to the invention will.

Nachstehend wird eine bevorzugte Ausführungsform der ERfindung an Hand einer Zeichnung beschrieben: Trübe tritt bei (1) in das Filter ein, strömt durch Siebboden (11), hebt die Filterfüllkörper (13) an und trägt sie bis hydraulisch bewegten Siebboden (12#. Hier werden sie zurückgehalten und Filtrat tritt durch die Filterfüllkörper (13) an die Oberfläche, um bei (2) abzufließen.A preferred embodiment of the invention is set out below Described by a drawing: Turbidity enters the filter at (1), flows through sieve bottom (11), lifts the filter filler (13) and carries it up hydraulically moving sieve tray (12 #. Here they are held back and the filtrate passes through the filter filling body (13) to the surface in order to flow off at (2).

Bei Erschöpfung des Filters wird Trübezulauf (1) geschlossen und Verdrängungsflüssigkeit (15) geöffnet. Diese Maßnahme der Verdrängung wird praktiziert, wenn der Filterinhalt mit Schmutz nicht inden Vorderbetrieb zurückgenommen werden kann, wie z. B. bei Dicksaft in Zuckerfabriken.When the filter is exhausted, the sludge inlet (1) is closed and the displacement liquid is closed (15) open. This measure of displacement is practiced when the filter contents cannot be returned to the front operation with dirt, e.g. B. at Syrup in sugar factories.

Sonst wird Schmutzablauf (4) geöffnet und Reinigungsflüssigkeit wird bei (3) im Gegenstrom durch das Filterfüllkörperpolster (13) geleitet. So erfolgt eine Grobspülung des Filterpolsters. Nach erfolgter Spülung wird (4) wieder geschlossen und Reinigungsmittel aufgestaut bis zu einer gewissen Marke. Alsdann schließt (3), öffnet (6) und einströmende Preßluft lockert das verschmutzte Filterfüllkörperpolster auf. Gleichzeitig öffnet Ventil /7) und Hydraulikkolben (9) führt ein Preßhub aus. Ober Ventil (8) erfolgt die Rückführung des Kolbens in Ausgangsstellung. Die Anzahl der Kolbenhübe richtet sich nach dem Verschmutzungsgrad der Filterfüllkörper, ebenso die Anzahl der Spülungen.Otherwise the dirt drain (4) will be opened and cleaning fluid will be used at (3) passed in countercurrent through the filter packing pad (13). So done a rough rinse of the filter pad. After flushing, (4) is closed again and detergents pent up to a certain mark. Then (3) closes, opens (6) and compressed air flowing in loosens the dirty filter packing on. At the same time valve / 7) opens and hydraulic piston (9) executes a pressing stroke. The piston is returned to its initial position via valve (8). The number the piston stroke depends on the degree of soiling of the filter packing, as well the number of rinses.

Eine Spülung endet mit der Abführung des Schmutzwassers oberhalb (5) und unterhalb (4)des in Preßstellung stehenden Hydraulikkolbens. Nach Ablauf des Schmutzwassers oben (5) und unten (4) wird frische Reinigungsflüssigkeit bei (3) aufgegeben und läuft dieses bei (5) ca. 10 Sekunden ab.A rinse ends with the drainage of the dirty water above (5) and below (4) the hydraulic piston in the pressing position. After the The dirty water above (5) and below (4) is fresh cleaning liquid at (3) given up and this runs at (5) for about 10 seconds.

Alsdann wird (4 und 5) geschlossen und Flüssigkeit aufgestaut.Then (4 and 5) are closed and liquid is dammed up.

Nun öffnet Ventil (8) und das Filterfüllkörperpolster (13) kann expandieren. Die Reinigung ist abgeschlossen, wenn die Reinigungsflüssigkeit sauberbleibt. Das Filter kann nach derzeitigem Stand der Technik vollautomatisch arbeiten, nachdem das Programm den vorgefundenen Gegebenheiten angepaßt wurde.Now valve (8) opens and the filter filling body cushion (13) can expand. Cleaning is complete when the cleaning fluid remains clean. That According to the current state of the art, the filter can work fully automatically the program has been adapted to the circumstances.

LeerseiteBlank page

Claims (10)

Patentansprüche: 0. Filter, insbesondere zur Filtration von Flüssigkeiten bei der die rübe durch ein Filtermedium strömt dadurch ,gekennzeichnet, daß das Filtermedium aus Filterfüllkörpern besteht. Claims: 0. Filters, especially for the filtration of liquids in which the beet flows through a filter medium, characterized in that the Filter medium consists of filter fillers. 2. Filter nach Anspruch 1 dadurch gekennzeichnet, daß die Filterfüllkörper leichter sind als die Trübe und dadurch Schwimmeigenschaften besitzen. 2. Filter according to claim 1, characterized in that the filter filling body are lighter than the turbidity and therefore have swimming properties. 3. Filter nach Anspruch 1 dadurch gekennzeichnet, daß die Trübe das Filter von unten nach oben durchströmt. 3. Filter according to claim 1, characterized in that the turbidity Flow through the filter from bottom to top. 4. Filter nach Anspruch 1 bis 3 dadurch gekennzeichnet, daß die durbhstrbmende Trübe aus den Filterfülikörpern ein schwimmendes Filterpolster bildet. 4. Filter according to claim 1 to 3, characterized in that the durbhstrbmende Turbidity forms a floating filter cushion from the filter fillers. 5. Filter nach einem oder mehreren Ansprüchen 1 - 4 dadurch gekennzeichnet, daß der Raum zur Aufnahme der Filterfüllkörper größer ist als der erforderliche Raum zur Unterbringung der Füllkörper. 5. Filter according to one or more of claims 1-4, characterized in that that the space for receiving the filter packing is larger than the required Space to accommodate the packing. 6. Filter nach Anspruch 1 und 2 dadurch gekennzeichnet, daß die Füllkörper elastisch, haarig und durchlässig sind. 6. Filter according to claim 1 and 2, characterized in that the filling body are elastic, hairy and permeable. 7. Filter nach einem oder mehreren Ansprüchen dadurch gekennzeichnet, daß das obere Begrenzungssieb mechanisch oder hydraulisch vertikal bewegt werden kann. 7. Filter according to one or more claims, characterized in that that the upper limiting sieve can be moved vertically mechanically or hydraulically can. 8. Filter nach Anspruch 7 dadurch gekennzeichnet, daß das obere Begrenzungssieb als Preßteller ausgebildet ist. 8. Filter according to claim 7, characterized in that the upper limiting screen is designed as a press plate. 9. Filter nach Anspruch 8 dadurch gekennzeichnet, daß sich das über dem eingefahrenen Preßteller sich bildende Schmutzwasser über eine Ringleitung (5) abgeführt werden kann. 9. Filter according to claim 8, characterized in that the over dirty water that forms from the retracted press plate via a ring line (5) can be discharged. 10. Filter nach 1 bis 6 dadurch gekennzeichnet, daß die Filterfüllkörper unterschiedliche Größe und Sturktur aufweisen können.10. Filter according to 1 to 6, characterized in that the filter filler can have different sizes and structures.
DE19803004614 1980-02-08 1980-02-08 Filter for liquids - where filtration medium consists of filling located between two perforated plates in filter tank, and floating on liq. to be filtered Withdrawn DE3004614A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19803004614 DE3004614A1 (en) 1980-02-08 1980-02-08 Filter for liquids - where filtration medium consists of filling located between two perforated plates in filter tank, and floating on liq. to be filtered

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19803004614 DE3004614A1 (en) 1980-02-08 1980-02-08 Filter for liquids - where filtration medium consists of filling located between two perforated plates in filter tank, and floating on liq. to be filtered

Publications (1)

Publication Number Publication Date
DE3004614A1 true DE3004614A1 (en) 1981-08-13

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Application Number Title Priority Date Filing Date
DE19803004614 Withdrawn DE3004614A1 (en) 1980-02-08 1980-02-08 Filter for liquids - where filtration medium consists of filling located between two perforated plates in filter tank, and floating on liq. to be filtered

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Country Link
DE (1) DE3004614A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0100994A2 (en) * 1982-08-10 1984-02-22 Kansas State University Research Foundation Method of filtration using semifluidized beds
EP0259000A1 (en) * 1986-08-04 1988-03-09 JAMES HOWDEN & COMPANY LIMITED Filtering method and apparatus
WO1992002286A1 (en) * 1990-08-06 1992-02-20 Welsh Water Enterprises Limited Method of treating liquids and apparatus therefor

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0100994A2 (en) * 1982-08-10 1984-02-22 Kansas State University Research Foundation Method of filtration using semifluidized beds
EP0100994A3 (en) * 1982-08-10 1984-10-10 Kansas State University Research Foundation Method of filtration using semifluidized beds
EP0259000A1 (en) * 1986-08-04 1988-03-09 JAMES HOWDEN & COMPANY LIMITED Filtering method and apparatus
US4776962A (en) * 1986-08-04 1988-10-11 James Howden & Company Limited, A British Company Filtering apparatus and method
WO1992002286A1 (en) * 1990-08-06 1992-02-20 Welsh Water Enterprises Limited Method of treating liquids and apparatus therefor
GB2263073A (en) * 1990-08-06 1993-07-14 Welsh Water Enterprises Ltd Method of treating liquids and apparatus therefor
GB2263073B (en) * 1990-08-06 1994-05-25 Welsh Water Enterprises Ltd Method of treating liquids and apparatus therefor

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