EP1996306A1 - Espaceur destine a une utilisation dans un systeme de filtration - Google Patents

Espaceur destine a une utilisation dans un systeme de filtration

Info

Publication number
EP1996306A1
EP1996306A1 EP06742324A EP06742324A EP1996306A1 EP 1996306 A1 EP1996306 A1 EP 1996306A1 EP 06742324 A EP06742324 A EP 06742324A EP 06742324 A EP06742324 A EP 06742324A EP 1996306 A1 EP1996306 A1 EP 1996306A1
Authority
EP
European Patent Office
Prior art keywords
spacer
opening
spacer according
unfiltered material
filter
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Withdrawn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
EP06742324A
Other languages
German (de)
English (en)
Inventor
Erhard Rudolf
Franz Fastner
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.)
IP AG
Original Assignee
IP AG
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 IP AG filed Critical IP AG
Publication of EP1996306A1 publication Critical patent/EP1996306A1/fr
Withdrawn legal-status Critical Current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
    • B01D29/39—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 hollow discs side by side on, or around, one or more tubes, e.g. of the leaf type
    • B01D29/41—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 hollow discs side by side on, or around, one or more tubes, e.g. of the leaf type mounted transversely on the tube
    • 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
    • B01D29/88—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices
    • B01D29/90—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for feeding
    • B01D29/908—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for feeding provoking a tangential stream

Definitions

  • the present invention relates to a spacer for use in a filter system according to the preamble of claim 1 and a filter system with the spacer.
  • the present invention is in the field of filtration systems utilizing cross-flow technology, also known as cross-flow technology.
  • a cross-flow is generated above the filter means with the aim of keeping the filter medium surface of residues, also referred to as filter cake, free.
  • disc-shaped filter means are used, which are arranged one behind the other to a filter medium stack and strung.
  • the filter medium package can be operated both horizontally and vertically in the filter system. So that a corresponding transverse flow can be achieved over each individual filter means of the filter agent packet, so-called spacers are arranged between the individual filter means.
  • These are usually disc-shaped elements made of metal or plastic. Filter media and spacers are usually strung and fixed alternately over a central tube. The derivative of the filtrate via the central tube.
  • particle removal on the surface of the filter medium is created by moving the unfiltered filtrate to be filtered and directing it over the surface of the filter medium.
  • unfiltrate liquids gases and solids are referred to, which are to be filtered with the filter system.
  • Liquid unfiltrates are also referred to as suspension.
  • Gaseous unfiltrates are also understood as meaning air which is to be filtered.
  • the filtered filtrate is the unfiltered filtrate, ie the filtered substance, after the filtration process. Filter systems used in cross-flow technology are described, for example, in WO 2004/069372.
  • the inflow of the unfiltrate takes place starting from the central tube in a direction which is referred to as tangential.
  • tangential This means that out of the central tube mounted openings the unfiltered material is not ejected in the radial direction but obliquely.
  • the ejection takes place along tangents to the central tube or straight lines that run parallel to these tangents.
  • the chambered design of the central tube, via which both the filtrate discharged and the unfiltered material is fed, makes the construction of such filter systems consuming.
  • Object of the present invention is therefore to improve known filter systems constructive. This object is achieved by a spacer according to claim 1 and a filter system according to claim 17. Advantageous embodiments are the subject of the dependent claims.
  • the spacer according to the invention comprises at least one means for discharging filtrate and at least one means for supplying unfiltered material.
  • Such means are in particular bores, recesses and lines which are mounted in the spacer.
  • a recess for discharging filtrate extends at right angles to the main plane of the spacer. The recess is located in the connection region of the filter means to the spacer.
  • the bore or line for supplying unfiltered material runs in the main plane of the spacer or parallel thereto.
  • the discharge of the unfiltered material therefore preferably takes place in the peripheral region of the spacer.
  • a separate central tube in systems according to the invention can be completely eliminated. Even if such is still provided, it does not need to be chambered. It may be a simple tube with corresponding openings, which cooperate with the lines for supplying unfiltered.
  • the Filtratab monarch according to the invention within the successively arranged spacers.
  • the recesses for draining the filtrate are arranged in a row so that the at least one recess, preferably a plurality of recesses of each spacer cooperate to form the Filtratab effet or the multiple Filtratableitonne.
  • the opening of the conduit of the means for supplying unfiltrate on the lateral surface of the spacer is not arranged radially, but obliquely, i. tangential. Most preferably, this is achieved by the provision of protrusions which extend beyond the outer edge of the spacer. Such projections can also be clearly described as wings or noses.
  • An oblique arrangement of the opening of the means for supplying unfiltered material can also be achieved by a recess in the edge region of the spacer.
  • the spacers also referred to as spacers, have predominantly a circular diameter, since this has turned out to be particularly favorable in terms of flow. Their diameter is adapted to the diameter of the central tube and the diameter of the filter medium. To the highest possible To achieve filter surface, the spacers are preferably the smallest possible diameter. The height of the spacers is determined by the distance that is to be generated between the individual filter means. On the one hand, the distance of the filter means of a filter agent package should be as low as possible in order to provide the highest possible filter medium area available. On the other hand, a certain distance between the filter means is necessary to allow the unfiltered material to move effectively across this filter media surface.
  • a further embodiment provides that in the spacer and a means for discharging unfiltered material is provided, so to speak, a return.
  • This in turn can be a pipe or bore. It is advantageous that then a container can be omitted.
  • a means for venting may also be provided. This can be deducted in the area of the center during the filtration of liquids accumulating air. Since air obstructs the filtration process of liquids and also the membrane of the filter medium can dry out, this is an advantage.
  • Figure 1 is a perspective view of an inventive
  • Figure 2 is a plan view of the spacer;
  • Figure 3 is a section through the spacer;
  • Figure 4 is a side view of the spacer.
  • the spacer 1 is disc-shaped from its basic shape. In the center, a continuous recess 2 is provided. About this central recess 2, the supply of unfiltered material for all spacers 1 of a filter agent package. It therefore corresponds to an unfiltrate collection feed.
  • conduits 3, for example in the form of a bore, are provided for feeding unfiltered material in the main plane E of the spacer 1, with which the non-filtrate from the central recess 2 is fed to the container of a filter system (not shown).
  • the course of the lines 3 is shown in Figure 2 by the dashed lines.
  • the holes 3 ' have no function in the illustrated embodiment; They are production-related and are usually closed after production.
  • the line 3 can also be used as a means for removing unfiltered and / or as a means for venting.
  • the line 3 initially runs radially and then opens into an opening 4, the nozzle function has. From this opening 4, the unfiltered material is ejected and generates the flow over the filter medium.
  • the arrows 5 make this ejection and the course of the unfiltrate clear.
  • the openings 4 are not radially, but are arranged obliquely in the edge region, more precisely on the circumference 6 of the spacer 1.
  • the conduit 3 and the opening 4 may for example be perpendicular to each other, wherein the bore, which forms the opening 4 in the illustrated embodiment continues to be in the main plane E.
  • the discharge of the non-filtrate is effected by this particular arrangement along a tangent T or parallel straight line of the spacer 1.
  • the opening 4 is provided in the illustrated embodiment in a projection 7, more precisely in the head surface 13 of the projection 7.
  • the projection 7 is fluidically designed low, for example, by it in the direction that faces away from the opening 4, tapers ( Figure 1, Figure 3). This prevents shadowing, ie the local accumulation of particles. It will be apparent to a person skilled in the art that the tangentially oriented opening 4 can be made in a recess in the spacer instead of in projections 7 (not shown).
  • the line 3 and the opening 4 are designed aerodynamically favorable, by curves and other measures.
  • the projection 7 is designed so that the unfiltered material is ejected from the opening 4 by utilizing the injector principle.
  • the projection 7 corresponding means for achieving a negative pressure. This can be achieved for example by a corresponding design of the top surface 13 of the projection 7, where the opening 4 is arranged. If the flat top surface shown in FIG. 4 is beveled in the direction of the opening 4, a suction effect arises due to the flow of the unfiltrate, which leads to an additional acceleration of the unfiltrate.
  • one or more holes is provided in the projection 7, so that also in the head region in front of the opening 4, a suction effect.
  • An advantageous application of such a spacer can be, for example, in the aerobic filtration, where with the aid of the injector principle described an air or oxygen input and a fine distribution of the registered or located in the unfiltered gas.
  • the recess for draining filtrate 8 is arranged perpendicular to the main plane E of the spacer 1. Filtrate collected in the filter medium is supplied to the recesses 8 and discharged from the filter system.
  • Such a filter system can be introduced, for example, into a container containing unfiltrate, in particular suspension.
  • This configuration makes the filter system according to the invention suitable, for example, for use in sewage treatment plants as immersion or floating filters.
  • each spacer 1 has a screw hole with thread 9 and a thread-free fastener passage 10.
  • a fastening means in particular a screw
  • the spacers 1 and filter media discs of a filter agent package are braced against each other or via a single or more threaded rods, for example, connected to each other.
  • the screw holes 9 can be omitted and only fastener passages 10 are necessary.

Landscapes

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

Abstract

L'invention concerne un espaceur (1) destiné à une utilisation dans un système de filtration à écoulements croisés, afin d'espacer les moyens de filtration les uns des autres. Il présente selon l'invention au moins un moyen de déchargement d'un filtrat (8) et au moins un moyen de recirculation d'une substance à filtrer (3, 4).
EP06742324A 2006-03-16 2006-05-12 Espaceur destine a une utilisation dans un systeme de filtration Withdrawn EP1996306A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202006004353U DE202006004353U1 (de) 2006-03-16 2006-03-16 Distanzstück zum Einsatz in einer Filteranlage
PCT/DE2006/000816 WO2007104270A1 (fr) 2006-03-16 2006-05-12 Espaceur destine a une utilisation dans un systeme de filtration

Publications (1)

Publication Number Publication Date
EP1996306A1 true EP1996306A1 (fr) 2008-12-03

Family

ID=37192383

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06742324A Withdrawn EP1996306A1 (fr) 2006-03-16 2006-05-12 Espaceur destine a une utilisation dans un systeme de filtration

Country Status (3)

Country Link
EP (1) EP1996306A1 (fr)
DE (2) DE202006004353U1 (fr)
WO (1) WO2007104270A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009007131A1 (de) 2009-02-02 2010-08-05 Ip Ag Filtervorrichtung
DE202009001235U1 (de) 2009-02-02 2010-06-24 Ip Ag Filtermittel und Filtervorrichtung

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3622103A1 (de) * 1986-07-02 1988-02-25 Alfons Dipl Ing Schotten Scheiben - membran - pressfilter
US4897192A (en) * 1988-07-18 1990-01-30 Lawrence William J Rotary filtration device
DE19602348C1 (de) * 1996-01-24 1997-09-11 Schenk Filterbau Gmbh Scheibenfilter
DE502004004724D1 (de) * 2003-02-10 2007-10-04 Rudolf Gmbh Filtervorrichtung und filtrationsverfahren

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2007104270A1 *

Also Published As

Publication number Publication date
WO2007104270A1 (fr) 2007-09-20
DE202006004353U1 (de) 2007-07-19
DE112006003905A5 (de) 2009-02-26

Similar Documents

Publication Publication Date Title
EP0947237B1 (fr) Dispositif de séparation de milieux liquides chargés d'impuretés
EP1317318B1 (fr) Filtre a membrane pour traitement de l'eau
AT401888B (de) Dynamisches filtersystem
EP3525905A1 (fr) Dispositif de filtration
EP0707884A1 (fr) Appareil de filtration et de séparation de fluides, notamment de fluides biologiques-organiques, pourvu d'éléments filtrants sous forme de coussins à membranes
EP2246174B1 (fr) Dispositif de filtre pour matières plastiques en fusion
DE3916744C2 (de) Rohrförmiges Filterelement
DE2945317C2 (de) Vorrichtung zur Wasserentsalzung und -reinigung durch Umgekehrte Osmose und Ultrafiltration
EP1996306A1 (fr) Espaceur destine a une utilisation dans un systeme de filtration
EP3144053B1 (fr) Récipient pour une cartouche filtrante et ensemble de filtre
EP0164608B1 (fr) Appareil pour la séparation de produits d'un mélange produit-substrat
EP2059378B1 (fr) Dispositif de filtration de matière synthétique thermoplastique fondue
DE69911597T2 (de) Verfahren und vorrichtung eines filters mit einer komprimierten sperrzone
EP0239666A2 (fr) Filtre à courant transversal
DE102007006811A1 (de) Vorrichtung zum Filtrieren einer thermoplastischen Kunststoffschmelze
DE102007028353A1 (de) Distanzstück zum Einsatz in einer Filteranlage
DE3807258A1 (de) Verfahren und vorrichtung zum filtrieren von fluessigen medien
EP1455921B1 (fr) Dispositif filtre, en particulier filtre a empilement
EP1397190B1 (fr) Dispositif de triage et de filtrage de melanges multiphases
DE102009032652B4 (de) Filtereinrichtung für Kunststoffschmelzen
DE3222585A1 (de) Filter
EP0951934B1 (fr) Dispositif de filtration et de séparation de fluides pourvu d'au moins une sortie pour le perméat
DE3341642A1 (de) Aus einem gehaeuse und mindestens einem filterelement bestehende filteranordnung
DE102009018934A1 (de) Druckfiltervorrichtung und Verfahren zur Filtration
DE102004010968A1 (de) Vorrichtung zum Filtrieren eines Fluids, insbesondere eines verflüssigten Kunststoffes

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20081007

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20091201