SE9703139D0 - Apparatus for filtering suspensions - Google Patents

Apparatus for filtering suspensions

Info

Publication number
SE9703139D0
SE9703139D0 SE9703139A SE9703139A SE9703139D0 SE 9703139 D0 SE9703139 D0 SE 9703139D0 SE 9703139 A SE9703139 A SE 9703139A SE 9703139 A SE9703139 A SE 9703139A SE 9703139 D0 SE9703139 D0 SE 9703139D0
Authority
SE
Sweden
Prior art keywords
chambers
discs
suspensions
filtering suspensions
filtering
Prior art date
Application number
SE9703139A
Other languages
Swedish (sv)
Inventor
Rune Helmer Frykhult
Original Assignee
Frykhult R Ingf Ab
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 Frykhult R Ingf Ab filed Critical Frykhult R Ingf Ab
Priority to SE9703139A priority Critical patent/SE9703139D0/en
Publication of SE9703139D0 publication Critical patent/SE9703139D0/en
Priority to JP2000508449A priority patent/JP2001514067A/en
Priority to AU90128/98A priority patent/AU9012898A/en
Priority to DE19882626T priority patent/DE19882626T1/en
Priority to PCT/SE1998/001542 priority patent/WO1999011357A1/en
Priority to CA002301164A priority patent/CA2301164A1/en
Priority to SE0000631A priority patent/SE0000631D0/en
Priority to FI20000452A priority patent/FI20000452A/en

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
    • B01D33/15—Filters with filtering elements which move during the filtering operation with rotary plane filtering surfaces
    • B01D33/21—Filters with filtering elements which move during the filtering operation with rotary plane filtering surfaces with hollow filtering discs transversely mounted on a hollow rotary shaft
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D36/00—Filter circuits or combinations of filters with other separating devices
    • B01D36/001—Filters in combination with devices for the removal of gas, air purge systems
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/18—De-watering; Elimination of cooking or pulp-treating liquors from the pulp
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
    • D21D5/00—Purification of the pulp suspension by mechanical means; Apparatus therefor
    • D21D5/02—Straining or screening the pulp
    • D21D5/04—Flat screens
    • D21D5/046—Rotary screens

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Filtration Of Liquid (AREA)
  • Paper (AREA)
  • Filtering Materials (AREA)

Abstract

An apparatus for filtering mat forming suspensions, such as fibre pulp suspensions, has rotating annular discs (6) with peripheral chambers (13) arranged to operate as droplegs on the ascending parts of the discs. To speed up the emptying of the chambers there are venting means (21, 23) effective to supply air into the chambers at the upwardly moving parts of the discs, when the chambers are at least partly above a body of the suspension to be filtered during rotation of the discs.
SE9703139A 1997-09-01 1997-09-01 Apparatus for filtering suspensions SE9703139D0 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
SE9703139A SE9703139D0 (en) 1997-09-01 1997-09-01 Apparatus for filtering suspensions
JP2000508449A JP2001514067A (en) 1997-09-01 1998-08-31 Suspension filtration equipment
AU90128/98A AU9012898A (en) 1997-09-01 1998-08-31 Apparatus for filtering suspensions
DE19882626T DE19882626T1 (en) 1997-09-01 1998-08-31 Device for filtering suspensions
PCT/SE1998/001542 WO1999011357A1 (en) 1997-09-01 1998-08-31 Apparatus for filtering suspensions
CA002301164A CA2301164A1 (en) 1997-09-01 1998-08-31 Apparatus for filtering suspensions
SE0000631A SE0000631D0 (en) 1997-09-01 2000-02-25 Device for filtering suspensions
FI20000452A FI20000452A (en) 1997-09-01 2000-02-28 Sludge filtration device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9703139A SE9703139D0 (en) 1997-09-01 1997-09-01 Apparatus for filtering suspensions

Publications (1)

Publication Number Publication Date
SE9703139D0 true SE9703139D0 (en) 1997-09-01

Family

ID=20408095

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9703139A SE9703139D0 (en) 1997-09-01 1997-09-01 Apparatus for filtering suspensions

Country Status (7)

Country Link
JP (1) JP2001514067A (en)
AU (1) AU9012898A (en)
CA (1) CA2301164A1 (en)
DE (1) DE19882626T1 (en)
FI (1) FI20000452A (en)
SE (1) SE9703139D0 (en)
WO (1) WO1999011357A1 (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI70526C (en) * 1984-12-03 1986-09-24 Enso Gutzeit Oy SKIVFILTER
JPH05505553A (en) * 1990-02-16 1993-08-19 ベロイト・テクノロジーズ，インコーポレイテッド liquid filtration device

Also Published As

Publication number Publication date
FI20000452A (en) 2000-02-28
JP2001514067A (en) 2001-09-11
WO1999011357A1 (en) 1999-03-11
DE19882626T1 (en) 2000-08-24
AU9012898A (en) 1999-03-22
CA2301164A1 (en) 1999-03-11

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