SE9802870L - Filtering of fibrous suspensions - Google Patents

Filtering of fibrous suspensions

Info

Publication number
SE9802870L
SE9802870L SE9802870A SE9802870A SE9802870L SE 9802870 L SE9802870 L SE 9802870L SE 9802870 A SE9802870 A SE 9802870A SE 9802870 A SE9802870 A SE 9802870A SE 9802870 L SE9802870 L SE 9802870L
Authority
SE
Sweden
Prior art keywords
fraction
outlet
filtering
screen apertures
inlet
Prior art date
Application number
SE9802870A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE9802870D0 (en
Inventor
Boerje Fredriksson
Original Assignee
Sunds Defibrator
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 Sunds Defibrator filed Critical Sunds Defibrator
Priority to SE9802870A priority Critical patent/SE9802870L/en
Publication of SE9802870D0 publication Critical patent/SE9802870D0/en
Priority to PCT/SE1999/001003 priority patent/WO2000012811A1/en
Priority to CA002341535A priority patent/CA2341535A1/en
Priority to AU46698/99A priority patent/AU750899B2/en
Priority to BR9913254-0A priority patent/BR9913254A/en
Priority to JP2000567786A priority patent/JP2002523651A/en
Priority to EP99930090A priority patent/EP1108084A1/en
Publication of SE9802870L publication Critical patent/SE9802870L/en

Links

Classifications

    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)
  • Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)

Abstract

A method of separating a fiber fraction by screening from a liquid containing fibers and small particles, where the separation takes place in that the ingoing liquid is allowed to flow along a screen member with screen apertures from an inlet (2) to a first outlet (3) for a first fraction which passes through the screen apertures, and a second outlet (4) for a second fraction, which does not pass through the screen apertures. 50-80 % of the flow of the second fraction is recycled from the second outlet (4) to the inlet (2) for increasing the concentration of network forming fibers in the ingoing liquid.
SE9802870A 1998-08-26 1998-08-26 Filtering of fibrous suspensions SE9802870L (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
SE9802870A SE9802870L (en) 1998-08-26 1998-08-26 Filtering of fibrous suspensions
PCT/SE1999/001003 WO2000012811A1 (en) 1998-08-26 1999-06-09 Screening of fibrous suspensions
CA002341535A CA2341535A1 (en) 1998-08-26 1999-06-09 Screening of fibrous suspensions
AU46698/99A AU750899B2 (en) 1998-08-26 1999-06-09 Screening of fibrous suspensions
BR9913254-0A BR9913254A (en) 1998-08-26 1999-06-09 Process for separating a fraction of fiber by sieving a liquid containing fibers and small particles
JP2000567786A JP2002523651A (en) 1998-08-26 1999-06-09 Screening of fiber suspension
EP99930090A EP1108084A1 (en) 1998-08-26 1999-06-09 Screening of fibrous suspensions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9802870A SE9802870L (en) 1998-08-26 1998-08-26 Filtering of fibrous suspensions

Publications (2)

Publication Number Publication Date
SE9802870D0 SE9802870D0 (en) 1998-08-26
SE9802870L true SE9802870L (en) 2000-02-27

Family

ID=20412375

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9802870A SE9802870L (en) 1998-08-26 1998-08-26 Filtering of fibrous suspensions

Country Status (7)

Country Link
EP (1) EP1108084A1 (en)
JP (1) JP2002523651A (en)
AU (1) AU750899B2 (en)
BR (1) BR9913254A (en)
CA (1) CA2341535A1 (en)
SE (1) SE9802870L (en)
WO (1) WO2000012811A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6649068B2 (en) 2000-06-14 2003-11-18 Andritz Inc. Filtration of pulp mill liquids
DE10125975A1 (en) * 2001-05-29 2002-12-05 Voith Paper Patent Gmbh Process for separating fractions from a fiber suspension

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE327328B (en) * 1967-05-17 1970-08-17 G Holm
US4543181A (en) * 1982-12-16 1985-09-24 Kamyr, Inc. Medium consistency flat disk pressure screen
US4619761A (en) * 1984-12-20 1986-10-28 Koppers Company, Inc. Method for screening or fractionation
SE8701423L (en) * 1987-04-06 1988-10-07 Kamyr Ab PROCEDURE FOR MANUFACTURING FIBER CONTENT WITH DIFFERENT FRAME MATERIALS
JP3065202B2 (en) * 1993-10-20 2000-07-17 石川島播磨重工業株式会社 Waste Paper Pulp Sorting Method and Apparatus

Also Published As

Publication number Publication date
BR9913254A (en) 2001-05-22
EP1108084A1 (en) 2001-06-20
AU750899B2 (en) 2002-08-01
JP2002523651A (en) 2002-07-30
AU4669899A (en) 2000-03-21
CA2341535A1 (en) 2000-03-09
WO2000012811A1 (en) 2000-03-09
SE9802870D0 (en) 1998-08-26

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Legal Events

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