ATE173952T1 - METHOD AND DEVICE FOR DEWATERING A FIBER SUSPENSION - Google Patents

METHOD AND DEVICE FOR DEWATERING A FIBER SUSPENSION

Info

Publication number
ATE173952T1
ATE173952T1 AT94929079T AT94929079T ATE173952T1 AT E173952 T1 ATE173952 T1 AT E173952T1 AT 94929079 T AT94929079 T AT 94929079T AT 94929079 T AT94929079 T AT 94929079T AT E173952 T1 ATE173952 T1 AT E173952T1
Authority
AT
Austria
Prior art keywords
fractionator
dewatering apparatus
dewatering
fiber suspension
fractioning
Prior art date
Application number
AT94929079T
Other languages
German (de)
Inventor
Kent Strid
Original Assignee
Kvaerner Pulping As
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 Kvaerner Pulping As filed Critical Kvaerner Pulping As
Application granted granted Critical
Publication of ATE173952T1 publication Critical patent/ATE173952T1/en

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
    • D21D1/00—Methods of beating or refining; Beaters of the Hollander type
    • D21D1/20—Methods of refining
    • D21D1/40—Washing the fibres
    • 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
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/66—Pulp catching, de-watering, or recovering; Re-use of pulp-water

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Drying Of Solid Materials (AREA)
  • Preliminary Treatment Of Fibers (AREA)

Abstract

In a method for the conversion of a fibre suspension, and particularly for increasing the output of a dewatering apparatus especially for recycled fibre pulp, the reject from the dewatering apparatus is treated in a fractionator, where fractioning takes place in liquid, and fractions from the fractionator are selectively introduced into the accept flow from the dewatering apparatus. In an apparatus for practising the method, a fractionator (10) of the kind where fractioning takes place in liquid is connected to the reject outlet (8) of a dewatering apparatus (1), and the fraction outlets (18, 19, 20) of the fractionator lead to the accept outlet (6) of the dewatering apparatus (1).
AT94929079T 1993-09-30 1994-09-29 METHOD AND DEVICE FOR DEWATERING A FIBER SUSPENSION ATE173952T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9303194A SE501772C2 (en) 1993-09-30 1993-09-30 Method and apparatus for increasing the yield upon dewatering of a fiber suspension

Publications (1)

Publication Number Publication Date
ATE173952T1 true ATE173952T1 (en) 1998-12-15

Family

ID=20391269

Family Applications (1)

Application Number Title Priority Date Filing Date
AT94929079T ATE173952T1 (en) 1993-09-30 1994-09-29 METHOD AND DEVICE FOR DEWATERING A FIBER SUSPENSION

Country Status (11)

Country Link
EP (1) EP0721526B1 (en)
JP (1) JPH09505641A (en)
AT (1) ATE173952T1 (en)
AU (1) AU7826494A (en)
CA (1) CA2172285A1 (en)
DE (1) DE69415035T2 (en)
ES (1) ES2124430T3 (en)
FI (1) FI111276B (en)
NO (1) NO316278B1 (en)
SE (1) SE501772C2 (en)
WO (1) WO1995009268A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2247032A1 (en) * 1996-02-28 1997-09-04 Ryan M. Smith Improved recovery of fine fibers from suspensions containing fibers and contaminants
EP0826819B1 (en) * 1996-08-30 2002-11-20 Voith Paper Fiber Systems GmbH & Co. KG Apparatus for dewatering a fibre suspension
FI106386B (en) 1999-05-03 2001-01-31 Valmet Corp Method and apparatus for recovering fibers from recycled water in a paper mill

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2666598B1 (en) * 1990-09-10 1994-05-27 Escher Wyss Gmbh PROCESS FOR SEPARATING, ESPECIALLY SORTING OR SPLITTING A SUSPENSION OF PAPER PULP.

Also Published As

Publication number Publication date
CA2172285A1 (en) 1995-04-06
FI961452A7 (en) 1996-03-29
DE69415035D1 (en) 1999-01-14
EP0721526A1 (en) 1996-07-17
NO961129D0 (en) 1996-03-20
JPH09505641A (en) 1997-06-03
FI961452A0 (en) 1996-03-29
AU7826494A (en) 1995-04-18
SE501772C2 (en) 1995-05-15
NO316278B1 (en) 2004-01-05
SE9303194L (en) 1995-03-31
DE69415035T2 (en) 1999-05-06
NO961129L (en) 1996-03-20
EP0721526B1 (en) 1998-12-02
SE9303194D0 (en) 1993-09-30
FI111276B (en) 2003-06-30
ES2124430T3 (en) 1999-02-01
WO1995009268A1 (en) 1995-04-06

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Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification
REN Ceased due to non-payment of the annual fee