FI107458B - Massankäsittelylaite ja menetelmä massan käsittelemiseksi siinä - Google Patents

Massankäsittelylaite ja menetelmä massan käsittelemiseksi siinä Download PDF

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Publication number
FI107458B
FI107458B FI925394A FI925394A FI107458B FI 107458 B FI107458 B FI 107458B FI 925394 A FI925394 A FI 925394A FI 925394 A FI925394 A FI 925394A FI 107458 B FI107458 B FI 107458B
Authority
FI
Finland
Prior art keywords
screen
vessel
cylinder
annular
treatment
Prior art date
Application number
FI925394A
Other languages
English (en)
Finnish (fi)
Swedish (sv)
Other versions
FI925394A (fi
FI925394A0 (fi
Inventor
Brian Greenwood
Joseph Phillips
John Weston
Victor Bilodeau
Ronald Bain
Mark Barrett
Original Assignee
Andritz Ahlstrom Inc
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 Andritz Ahlstrom Inc filed Critical Andritz Ahlstrom Inc
Publication of FI925394A0 publication Critical patent/FI925394A0/fi
Publication of FI925394A publication Critical patent/FI925394A/fi
Application granted granted Critical
Publication of FI107458B publication Critical patent/FI107458B/fi

Links

Classifications

    • 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
    • D21C7/00—Digesters
    • 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
    • D21C9/02—Washing ; Displacing cooking or pulp-treating liquors contained in the pulp by fluids, e.g. wash water or other pulp-treating agents
    • D21C9/04—Washing ; Displacing cooking or pulp-treating liquors contained in the pulp by fluids, e.g. wash water or other pulp-treating agents in diffusers ; Washing of pulp of fluid consistency without substantially thickening
    • 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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Extraction Or Liquid Replacement (AREA)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Fertilizers (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Crushing And Grinding (AREA)
  • Mechanical Operated Clutches (AREA)
FI925394A 1991-12-02 1992-11-27 Massankäsittelylaite ja menetelmä massan käsittelemiseksi siinä FI107458B (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/801,651 US5567279A (en) 1991-04-16 1991-12-02 Variable stage pressure diffuser
US80165191 1991-12-02

Publications (3)

Publication Number Publication Date
FI925394A0 FI925394A0 (fi) 1992-11-27
FI925394A FI925394A (fi) 1993-06-03
FI107458B true FI107458B (fi) 2001-08-15

Family

ID=25181696

Family Applications (1)

Application Number Title Priority Date Filing Date
FI925394A FI107458B (fi) 1991-12-02 1992-11-27 Massankäsittelylaite ja menetelmä massan käsittelemiseksi siinä

Country Status (5)

Country Link
US (1) US5567279A (de)
EP (1) EP0545888B1 (de)
AT (1) ATE164194T1 (de)
DE (1) DE69224797D1 (de)
FI (1) FI107458B (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6010594A (en) * 1993-03-03 2000-01-04 Ahlstrom Machinery Corporation Method of bleaching pulp with chlorine-free chemicals wherein a complexing agent is added immediately after an ozone bleach stage
WO1998033972A1 (en) * 1997-01-31 1998-08-06 Ahlstrom Machinery Oy Feeding of washing liquid in a pulp washer
SE509152C2 (sv) * 1997-04-07 1998-12-07 Kvaerner Pulping Tech Diffusör med flytkropp
US6272710B1 (en) 1998-05-07 2001-08-14 James R. Prough Plate diffuser for treating comminuted cellulosic fibrous material
US20030217822A1 (en) * 2002-05-24 2003-11-27 John Weston Pressure diffuser having gas vent for cooking liquor
US8157956B2 (en) * 2008-12-23 2012-04-17 Andritz Inc. Cylindrical bearing for pressure diffuser and associated method
JP5757700B2 (ja) 2009-08-03 2015-07-29 アンドリッツ・テクノロジー・アンド・アセット・マネージメント・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング プレッシャーディフューザーの内部ガイド
US9333468B2 (en) 2012-09-24 2016-05-10 Abengoa Bioenergy New Technologies, Llc Soak vessels and methods for impregnating biomass with liquid
US8888958B2 (en) * 2012-12-31 2014-11-18 Andritz Inc. Pressure diffuser with an annular baffle screen plate over water inlet

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3807202A (en) * 1969-09-30 1974-04-30 K Gunkel Continuous washing apparatus for pulp stock and the like
SE415202B (sv) * 1976-12-06 1980-09-15 Sunds Ab Anordning for koncentrering och/eller vetskebehandling av vetskehaltiga emnesblandningar
US4547264A (en) * 1979-02-12 1985-10-15 Kamyr, Inc. Method of withdrawing liquid from a pair of vertically spaced annular screens
US4375410A (en) * 1979-04-25 1983-03-01 Kamyr Ab Reciprocating diffuser arrangements in an elongated vessel
FI68686C (fi) * 1980-01-10 1985-10-10 Kamyr Ab Anordning foer behandling av stroemmande suspensioner
SE462435B (sv) * 1988-11-11 1990-06-25 Kamyr Ab Saett att stabilisera tryck- och floedesfoerhaallandena i en silapparat och silapparat haerfoer

Also Published As

Publication number Publication date
ATE164194T1 (de) 1998-04-15
DE69224797D1 (de) 1998-04-23
FI925394A (fi) 1993-06-03
EP0545888B1 (de) 1998-03-18
EP0545888A1 (de) 1993-06-09
US5567279A (en) 1996-10-22
FI925394A0 (fi) 1992-11-27

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Legal Events

Date Code Title Description
HC Name/ company changed in application

Owner name: AHLSTROM MACHINERY INC.

MA Patent expired