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WO1993018838A1 - Connecteur de col de bobinot - Google Patents

Connecteur de col de bobinot Download PDF

Info

Publication number
WO1993018838A1
WO1993018838A1 PCT/GB1993/000611 GB9300611W WO9318838A1 WO 1993018838 A1 WO1993018838 A1 WO 1993018838A1 GB 9300611 W GB9300611 W GB 9300611W WO 9318838 A1 WO9318838 A1 WO 9318838A1
Authority
WO
WIPO (PCT)
Prior art keywords
barrel neck
flanges
neck connector
seal
pairs
Prior art date
Application number
PCT/GB1993/000611
Other languages
English (en)
Inventor
Ian Christison Sayers
Peter Frederick Lofts
Original Assignee
Scapa Group Plc
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 Plc filed Critical Scapa Group Plc
Publication of WO1993018838A1 publication Critical patent/WO1993018838A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
    • B01D25/12—Filter presses, i.e. of the plate or plate and frame type
    • B01D25/176—Filter presses, i.e. of the plate or plate and frame type attaching the filter element to the filter press plates, e.g. around the central feed hole in the plates

Definitions

  • the invention concerns a barrel neck connector particularly for use for or between spaced filter cloths in producing a filter fabric for a filter press.
  • Filter cloths for use in filter presses which comprise side-by-side plates defining filter chambers therebetween are known which comprise separate filter cloths joined together by a barrel neck so positioned as to be registrable with a feed aperture in the plate, the neck being positioned to extend through the feed aperture with the individual filter cloths lying against the respective faces of the press plate.
  • the present invention seeks to provide a barrel neck which may be secured to a filter cloth without the need for gluing, sewing or welding.
  • a barrel neck connector comprising two pairs of flanges, said pairs of flanges being provided at opposite ends of a tube, wherein said pairs of flanges are operative to receive a filter cloth therebetween either alone or in combination with at least one seal.
  • the barrel neck connector of the invention may be secured to a filter cloth without the need for an additional bonding step.
  • One or more seals may be provided between at least one of the pairs of flanges .
  • the filter cloth may be mounted between the flanges or between one flange and a seal or set of seals provided on the interior face of the other flange or between seals or sets of seals provided on each of the interior faces of the flanges.
  • the seals may comprise an "0" ring and/or a distortable flap. The use of such seals prevents the suspension being filtered from leaking into the filtrate side of the cloth.
  • a water-swellable gasket may be used as the seal means . As the gasket swells due to contact with water it creates the seal.
  • the water-swellable gasket may comprise an apertured polyethylene sheet formed into a tube and containing swelling agent or a water-swellable yarn.
  • Fig. 1 is a vertical cross section through one barrel neck connector in accordance with the present invention
  • Fig. 2 shows possible arrangements of sealing rings for use with the barrel neck connector of Fig. 1;
  • Fig. 3 shows a second barrel neck connector in accordance with the invention.
  • a barrel neck connector 5 comprises a tube 10 having a pair of circular flanges 11,12,13,14 connected to either end thereof.
  • the connector 5 is made from extrudable or ouldable elastomer.
  • a filter cloth 15a, 15b is received between each pair of flanges.
  • a seal 16 is provided between the flanges and the adjacent filter cloth. The seals 16 ensure that the suspension being filtered cannot leak into the filtrate side of the cloth 15.
  • the seal 16 may comprise one or more "0" rings or flaps which could be designed to distort in use so that they provide an effective seal. It should be remembered that there is a positive pressure within each filter press chamber that will serve to force the membrane flaps towards the filter cloth.
  • the water swellable substance may comprise a non-woven material or a foraminous sheet of plastics film such as that commercially available from Tredegar.
  • the water- swellable seal may comprise a water-swellable yarn 17 such as that supplied by Geca. Such a yarn is easy to wind in position as is illustrated in Fig. 4.

Landscapes

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

Abstract

Un connecteur de col de bobinot comprend deux paires de flasques (11, 12, 13, 14) montées aux extrémités opposées d'un tube (10). Une toile pour filtre-presse (15) est placée entre chaque paire de flasques (11, 12, 13, 14). Un ou plusieurs joints d'étanchéité peuvent être intercalés entre les toiles (15) et les flasques (11, 12, 13, 14).
PCT/GB1993/000611 1992-03-25 1993-03-24 Connecteur de col de bobinot WO1993018838A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB929206519A GB9206519D0 (en) 1992-03-25 1992-03-25 Barrel neck connector
GB9206519.2 1992-03-25

Publications (1)

Publication Number Publication Date
WO1993018838A1 true WO1993018838A1 (fr) 1993-09-30

Family

ID=10712834

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1993/000611 WO1993018838A1 (fr) 1992-03-25 1993-03-24 Connecteur de col de bobinot

Country Status (3)

Country Link
AU (1) AU3764293A (fr)
GB (1) GB9206519D0 (fr)
WO (1) WO1993018838A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007058755A2 (fr) 2005-11-14 2007-05-24 Micronics, Inc. Raccord de toile filtrante
EP1923114A1 (fr) * 2006-11-16 2008-05-21 Sefar AG Élément filtrant, notamment plaque de filtre presse
US8480891B2 (en) 2002-09-30 2013-07-09 Micronics, Inc. Filter assembly
EP3482809A1 (fr) 2017-11-14 2019-05-15 Sefar AG Élément de filtre et son procédé de fabrication

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2008428A (en) * 1977-09-09 1979-06-06 Mosely Rubber Co Ltd Plate for filter presses
DE3422574A1 (de) * 1984-06-18 1985-12-19 Hansen-BTR-GmbH, 3000 Hannover Membranfilterplatte
US5186998A (en) * 1990-05-21 1993-02-16 National Filter Media Corporation Duplex filter cloth and method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2008428A (en) * 1977-09-09 1979-06-06 Mosely Rubber Co Ltd Plate for filter presses
DE3422574A1 (de) * 1984-06-18 1985-12-19 Hansen-BTR-GmbH, 3000 Hannover Membranfilterplatte
US5186998A (en) * 1990-05-21 1993-02-16 National Filter Media Corporation Duplex filter cloth and method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
SOVIET INVENTIONS ILLUSTRATED, section C, week 9042, 28 November 1990 (28.11.90), DERWENT PUBLICATIONS LTD., London, J 01 SU-1551-395-A (N DON UKR CHEM ENG) abstract. *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8480891B2 (en) 2002-09-30 2013-07-09 Micronics, Inc. Filter assembly
WO2007058755A2 (fr) 2005-11-14 2007-05-24 Micronics, Inc. Raccord de toile filtrante
EP1948343A4 (fr) * 2005-11-14 2010-01-27 Micronics Inc Raccord de toile filtrante
AU2006315897B2 (en) * 2005-11-14 2011-05-26 Micronics, Inc Filter cloth connector
EP1923114A1 (fr) * 2006-11-16 2008-05-21 Sefar AG Élément filtrant, notamment plaque de filtre presse
WO2008058582A1 (fr) * 2006-11-16 2008-05-22 Sefar Ag Élément filtrant, notamment plaque de filtre-presse
US9278299B2 (en) 2006-11-16 2016-03-08 Sefar Ag Filter element including a filter press plate
EP3482809A1 (fr) 2017-11-14 2019-05-15 Sefar AG Élément de filtre et son procédé de fabrication

Also Published As

Publication number Publication date
GB9206519D0 (en) 1992-05-06
AU3764293A (en) 1993-10-21

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