DE1054070B - Filter material - Google Patents

Filter material

Info

Publication number
DE1054070B
DE1054070B DEB38201A DEB0038201A DE1054070B DE 1054070 B DE1054070 B DE 1054070B DE B38201 A DEB38201 A DE B38201A DE B0038201 A DEB0038201 A DE B0038201A DE 1054070 B DE1054070 B DE 1054070B
Authority
DE
Germany
Prior art keywords
filter material
filter
filtration
water
foam rubber
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.)
Pending
Application number
DEB38201A
Other languages
German (de)
Inventor
Dr-Ing Rolf Freier
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.)
BRAN and LUEBBE
Original Assignee
BRAN and LUEBBE
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 BRAN and LUEBBE filed Critical BRAN and LUEBBE
Priority to DEB38201A priority Critical patent/DE1054070B/en
Publication of DE1054070B publication Critical patent/DE1054070B/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D39/00Filtering material for liquid or gaseous fluids
    • B01D39/02Loose filtering material, e.g. loose fibres
    • B01D39/04Organic material, e.g. cellulose, cotton

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtering Materials (AREA)

Description

Filtermaterial Zwecks Reinigung der Trink-bzw. Rohwässer von Verschmutzungsbeatanfdteilen, kolloiddispersen Stoffen, Flockungschemikalien od. ä. werden Filtrationen über Kiefilter, Magnofilter, Sandfilter, Aktivkohlefilter, Filterpressen und anderen Vorrichtungen vorgenommen. Man kann direkt filtern, d. h. das zu reinigende Wasser durchläuft das Filterbett und gibt dabei seine grobdispersen bzw. einen Teil der kolloiddispersen Verschmutz ! ungsstoffe an die Filtermasse ab, oder dem Wasser werden vor der Filtration in feimer Verteilung Filterhilf. smittel beigegeben, welche zur sogenannten Anschwemmfiltration führen. Hierbei setzen sich die Fitterhilfsmittel erst im Filterbett ab und bewirken durch ihre dabei erfolgende Schichtung einen wirksameren Filtrationseffekt.Filter material for the purpose of cleaning the drinking or. Raw water from pollution components, colloid-dispersed substances, flocculation chemicals or the like are filtrations through Kie filters, Magnofilters, sand filters, activated carbon filters, filter presses and other devices performed. You can filter directly, i. H. the water to be cleaned runs through the filter bed and gives it its coarsely dispersed or part of the colloidal dispersed Dirty! ungsstoffe from the filter mass, or the water before the filtration in fine distribution filter aid. added to the so-called precoat filtration to lead. Here, the filter aids settle in the filter bed and have an effect a more effective filtration effect due to their layering.

Es. ist bekannt, als Filtermaterial Schwa. mmgum. mistücke zu verwenden. Derartige Schwammgummistücke sind lediglich für eine drucklose Filtration verwendet worden, bei welcher die Schwammgummistücke auf der Wass. erobernäche schwimmen. It. is known as filter material Schwa. mmgum. to use crap. Such sponge rubber pieces are only used for pressureless filtration been, in which the sponge rubber pieces on the water. conquer swim.

Demgegenüber betrifft die Erfindung ein loses Filtermaterial aus Schaumgummistückche, welceh die Form kleiner Kugeln aufweiten und im Wasser nicht schwimmen, wobei die Elastizität die'ser Kügelchien nur so groß bemessen sein soll, daß sie durch den Wasserdruck höchstens, auf drei Viertel bis die Hälfte ihres äußeren Volumes zusammengedrückt werden. In contrast, the invention relates to a loose filter material Pieces of foam rubber that expand the shape of small balls and not in the water swim, whereby the elasticity of these spheres should only be so large, that they are at most three-quarters to one-half of their outer surface due to the water pressure Volumes are compressed.

Die Wahl der Kugelform der Schaumgummistückcli, en ist fiir die Erfindung wesentlich. Würde man nämlich bei einerDrucknitrationSchwammgummistücke e verwenden, so würde dies zu einer baldigen Verstopfung und zu starkem Druckanstieg innerhalb des Druckfilters führen. Wendet man jedoch die ernndungsgemäßen Schaumgummikügelchen a, so ist die Wirkung eine völlig andere, weil die Verwendung derartiger Kügeicben eine GassenbMdung zwischen den einzelnen Teilen des Filtermaterials ermöglicht, und zwar auch bei Druckanstieg während der Filtration. The choice of the spherical shape of the foam rubber pieces is important for the invention essential. If you were to use sponge rubber pieces for pressure nitration, this would lead to an early clogging and a strong pressure increase within of the pressure filter. However, if the foam rubber beads according to the invention are used a, the effect is completely different, because the use of such kettles a lane connection between the individual parts of the filter material enables even if the pressure rises during the filtration.

Diese Gassenbildu9ng verhindert eine Verstopfung des Filters; trotzdem findet eine erhebliche Reinigungs-und FMtrationswirkung dadurch statt, daß die feinporige Oberfläche der Kügelchen das variiberströmend'e Wasser in ihren feinen Kapillaren stark adsorbiert. Bei der Anwendung von Schaumgummistückchen würde die Flüssigkeit keine Gassen finden : sie müßte vielmehr gänzlich durch das Material hindurchgedrückt werden.This formation of lanes prevents the filter from clogging; despite this there is a considerable cleaning and filtration effect due to the fact that the fine-pored On the surface of the globules the water flowing over the water in their fine capillaries strongly adsorbed. When using foam rubber pieces, the liquid would find no alleyways: it should rather be pushed completely through the material will.

Erfindungsgemäß liegen die Kugeln während der Filtration innerhalb des Filters auf einer festen Unterlage, z. B. einem Kiesbett. According to the invention, the spheres are inside during the filtration the filter on a firm surface, e.g. B. a gravel bed.

Wahrend die bekannte Schwammgummischicht. nachdem sie zur Filtration gedient hat, außerhalb des Filters gereinigt werden muß, wind bei Verwendung des neuen kugeligen Filtermaterials noch der Vorteil gewonnen,daßdieRückspüiungin.derbeiKiesnitern üblichen Weise innerhalb des Filtrationsgefäßes erfodgen kann. Dies, Reinigung durch Rückspülung gelingot dadurch, weit die Kugeln während des Rückspülvorganges vom Druck entlastet sind,alsonunmehr ein erheblich größeres Porenvolumen aufwaisen bzw. die vorhandenen Poren und Kanäle nunmehr viel weiter geöffnet sind als während der Filtration. Ein mit den ernndungsgemäßen Schaumgummikugeln betriebenes Filter kann also schrumpfen und quellen, odter, anders ausgedrückt, das Filter kann atmen. While the well-known sponge rubber layer. after going to filtration has served, outside the filter must be cleaned when using the new spherical filter material still has the advantage that the backwash in the gravel kniters usual way can erfodgen inside the filtration vessel. This, cleaning through Backwashing succeeds by keeping the balls away from the backwash process Pressure are relieved, then a considerably larger pore volume or the existing pores and channels are now opened much wider than during the Filtration. A filter operated with the foam rubber balls according to the invention can So shrink and swell, or, in other words, the filter can breathe.

Claims (2)

PATENTANSPRÜCHE : 1. Loses Filtermaterial aus Schaumgummistückchen, dadurch gekennzeichnet, daß dieses die Form kleiner Kugeln aufweist, im Wasser micht schwimmt und unter dem Filtrationsdruck auf drei Viertel bis der Hälfte seines ursprünglichen Volumens zusammendrückbar ist. PATENT CLAIMS: 1. Loose filter material made of foam rubber pieces, characterized in that this has the shape of small balls, micht in the water floats and under the filtration pressure to three quarters to half of its original Volume is compressible. 2. Versendung des Filtermaterials nach dem Anspruch l in Filtern, bei denen loses Filtermaterial innerhalb des filtergehäuses unter Druckentlastung rückgespüilt wird. 2. Dispatch of the filter material according to claim l in filters, where loose filter material inside the filter housing is under pressure relief is backwashed. In Betracht gezogene Druckschriften : Deutsche Patentschriften Nr. 412614, 409 117. Considered publications: German Patent Specifications No. 412614, 409 117.
DEB38201A 1955-12-07 1955-12-07 Filter material Pending DE1054070B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEB38201A DE1054070B (en) 1955-12-07 1955-12-07 Filter material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB38201A DE1054070B (en) 1955-12-07 1955-12-07 Filter material

Publications (1)

Publication Number Publication Date
DE1054070B true DE1054070B (en) 1959-04-02

Family

ID=6965423

Family Applications (1)

Application Number Title Priority Date Filing Date
DEB38201A Pending DE1054070B (en) 1955-12-07 1955-12-07 Filter material

Country Status (1)

Country Link
DE (1) DE1054070B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4591437A (en) * 1982-06-04 1986-05-27 Leif Ernryd Ab Apparatus for separating solid particles from a liquid

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE409117C (en) * 1924-04-02 1925-01-31 Uebersee Gummiwerke Akt Ges Swimming filter material
DE412614C (en) * 1921-10-18 1925-04-23 Hans Goldschmidt Dr Process for the production of synthetic materials by condensing urea with formaldehyde

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE412614C (en) * 1921-10-18 1925-04-23 Hans Goldschmidt Dr Process for the production of synthetic materials by condensing urea with formaldehyde
DE409117C (en) * 1924-04-02 1925-01-31 Uebersee Gummiwerke Akt Ges Swimming filter material

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4591437A (en) * 1982-06-04 1986-05-27 Leif Ernryd Ab Apparatus for separating solid particles from a liquid

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