EP0879078A1 - Dispositif de filtration - Google Patents

Dispositif de filtration

Info

Publication number
EP0879078A1
EP0879078A1 EP96941767A EP96941767A EP0879078A1 EP 0879078 A1 EP0879078 A1 EP 0879078A1 EP 96941767 A EP96941767 A EP 96941767A EP 96941767 A EP96941767 A EP 96941767A EP 0879078 A1 EP0879078 A1 EP 0879078A1
Authority
EP
European Patent Office
Prior art keywords
filter
retaining body
filter medium
filter apparatus
medium
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Withdrawn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
EP96941767A
Other languages
German (de)
English (en)
Inventor
David John Tebbutt
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.)
Madison Filter 981 Ltd
Original Assignee
Scapa Group Ltd
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 Scapa Group Ltd filed Critical Scapa Group Ltd
Publication of EP0879078A1 publication Critical patent/EP0879078A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/06—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums
    • B01D33/067—Construction of the filtering drums, e.g. mounting or sealing arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/06—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums
    • B01D33/073—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums arranged for inward flow filtration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/15—Filters with filtering elements which move during the filtering operation with rotary plane filtering surfaces
    • B01D33/17—Filters with filtering elements which move during the filtering operation with rotary plane filtering surfaces with rotary filtering tables
    • B01D33/19—Filters with filtering elements which move during the filtering operation with rotary plane filtering surfaces with rotary filtering tables the table surface being divided in successively tilted sectors or cells, e.g. for discharging the filter cake

Definitions

  • the present invention relates to filter apparatus such as drum filters
  • filter media such as filter cloths are retained to their
  • Metal mesh or soft wound wire cable has
  • caulking tools such as a bolster-shaped
  • retaining device for a drum filter comprising a flexible metal device inserted
  • UK Patent No. GB 2088809A describes the use of metal
  • caulking rope needs to absorb a significant amount of the product being
  • the rope may become hard depending on the process conditions and
  • pneumatic chisel guns are required to remove the hard ropes, resulting in
  • An object of the present invention is to provide a retaining method which eliminates the need for repetitive, intensive, physically demanding
  • a further object of the present invention is to provide devices for
  • a filter apparatus comprising a filter medium and a supporting structure for
  • slotted tube is configured solely to
  • the filter medium extending through the slot of the slotted tube.
  • the elongate retaining body preferably extends along a significant
  • the elastomeric portion of the filter medium may be elastomeric.
  • the elastomeric portion of the filter medium may be elastomeric.
  • retaining body may be bonded to the filter medium by conventional means
  • the retaining body may comprise natural
  • the elongate retaining body may extend along two opposing edges of
  • the filter media and is ideally between 6mm and 10mm in diameter and is
  • media edges may be secured to the supporting structure of the filter
  • down metal strip may be used to secure the remaining edges of the filter
  • the slotted tube may be inserted into grooves along two of the edges
  • slotted tubes is preferably from 30mm to 35mm in diameter and is ideally
  • a filter apparatus wherein the filter medium is secured to an elongate
  • slotted tube is configured solely to
  • the elongate retaining body of the filter medium is inserted
  • clamps are preferably used which allow the installers to pull the filter
  • the present invention may be used in connection with devices for
  • filtering i.e., pan filters as well as drum filters.
  • the elongate retaining body of the filter In the case of a pan filter, the elongate retaining body of the filter
  • the filter media is inserted via the two
  • the remaining edges of the filter medium are secured at the inner
  • perimeters of the pan filter preferably do not have an elongate retaining body secured thereto.
  • the method used to install filter fabrics to a vacuum drum filter is
  • a slotted tube is
  • the filter medium is fed into the slotted tube and pulled along the length of
  • a slotted tube is preferably installed between every second panel
  • a simple bolt-down metal strip may also be
  • the retaining system according to the invention is preferably sized to
  • Fig. 1 is a perspective view of a part of a pan filter table in
  • Fig. 2 is an enlarged view along line A-A of Fig. 1 ;
  • Fig. 3 is an enlarged view along line B-B of Fig. 1 ;
  • Fig.4 is a perspective view of a rotary drum filter in accordance with
  • Fig. 5 is an enlarged view along line C-C of Fig. 4.
  • Figures 2 and 3 also illustrate the enlarged views along lines A-A and
  • circular pan filter table comprises two filtering apparatus in accordance with
  • each filter apparatus 2 having a groove 3 provided
  • the filtering apparatus is shaped to form a narrow
  • a slotted tube 6, having a slot 7, is inserted
  • the slotted tube 6 is placed in the groove 3 so that the slot opening 7 faces
  • a filter medium such as a filter cloth 8 has secured thereto an
  • elongate retaining body 9 such as an elastomeric extrusion
  • the filter cloth 8 extends through the slot
  • the filter cloth 8 is placed in the groove 3 and
  • a metal strip 14 secures the filter cloth into the groove via a bolt 15.
  • tension on the filter cloth can be altered at this securing point.
  • Fig. 4 shows a rotary drum filter 16, wherein the drum filter is made
  • Fig. 2 is identical to that of
  • a filter cloth is inserted to the drum filter panel at either

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Water Treatment By Sorption (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Filtration Of Liquid (AREA)

Abstract

Dispositif de filtration (2) servant à filtrer des milieux liquides pour enlever les solides. Ce dispositif comprend un moyen de filtration (8) fixé à un corps de retenue allongé (9). Ce corps de retenue est inséré à l'intérieur de tubes fendus (6) placés sur la structure de support du dispositif de filtration, ce qui fixe le moyen de filtration à ladite structure de support dudit dispositif. Ceci permet d'introduire facilement le moyen de filtration dans le dispositif de filtration et de le remplacer sans difficultés.
EP96941767A 1995-12-29 1996-12-11 Dispositif de filtration Withdrawn EP0879078A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB9526629 1995-12-29
GBGB9526629.2A GB9526629D0 (en) 1995-12-29 1995-12-29 Filter apparatus
PCT/GB1996/003053 WO1997024170A1 (fr) 1995-12-29 1996-12-11 Dispositif de filtration

Publications (1)

Publication Number Publication Date
EP0879078A1 true EP0879078A1 (fr) 1998-11-25

Family

ID=10786142

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96941767A Withdrawn EP0879078A1 (fr) 1995-12-29 1996-12-11 Dispositif de filtration

Country Status (7)

Country Link
EP (1) EP0879078A1 (fr)
CN (1) CN1209078A (fr)
AU (1) AU713908B2 (fr)
GB (1) GB9526629D0 (fr)
WO (1) WO1997024170A1 (fr)
YU (1) YU70096A (fr)
ZA (1) ZA9610480B (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9815831D0 (en) 1998-07-22 1998-09-16 Scapa Group Plc Retention of filter elements
CZ306112B6 (cs) * 2010-03-02 2016-08-10 In - Eko Team S.R.O. Filtrační buben mikrosítového filtru a filtrační prostředek pro něj
US20200164290A1 (en) * 2017-06-07 2020-05-28 Sabic Global Technologies B.V. Rotary vacuum filter, method, and use

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2204928A (en) * 1938-05-31 1940-06-18 Oliver United Filters Inc Locking device
US2567266A (en) * 1947-06-04 1951-09-11 Frank W Young Filter
US3363773A (en) * 1965-04-09 1968-01-16 Mero & Company Inc Filter apparatus
US4308143A (en) * 1979-10-29 1981-12-29 Ethyl Corporation Rotary drum filter
US4865732A (en) * 1987-04-06 1989-09-12 Ingersoll-Rand Canada, Inc. Supported mesh filter leaf bag with embedded rope closure
DE4200304A1 (de) * 1992-01-09 1993-07-15 Dorr Oliver Inc Siebeinrichtung
GB2264881B (en) * 1992-03-13 1995-10-18 Alfa Laval Separation Ab Mounting and tensioning arrangements for screens

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9724170A1 *

Also Published As

Publication number Publication date
ZA9610480B (en) 1998-06-12
YU70096A (sh) 1998-12-23
WO1997024170A1 (fr) 1997-07-10
AU1104497A (en) 1997-07-28
GB9526629D0 (en) 1996-02-28
CN1209078A (zh) 1999-02-24
AU713908B2 (en) 1999-12-16

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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: 19980715

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): BE DE ES FI FR GB

17Q First examination report despatched

Effective date: 19991118

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: MADISON FILTER 981 LIMITED

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

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Withdrawal date: 20010414