CA2537087C - Screen device for a digester for producing pulp - Google Patents

Screen device for a digester for producing pulp Download PDF

Info

Publication number
CA2537087C
CA2537087C CA2537087A CA2537087A CA2537087C CA 2537087 C CA2537087 C CA 2537087C CA 2537087 A CA2537087 A CA 2537087A CA 2537087 A CA2537087 A CA 2537087A CA 2537087 C CA2537087 C CA 2537087C
Authority
CA
Canada
Prior art keywords
digester
screen
screen element
digestion
flow
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
CA2537087A
Other languages
English (en)
French (fr)
Other versions
CA2537087A1 (en
Inventor
Antti Isola
Matti Rosenqvist
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Valmet Technologies Oy
Original Assignee
Metso Paper Oy
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 Metso Paper Oy filed Critical Metso Paper Oy
Publication of CA2537087A1 publication Critical patent/CA2537087A1/en
Application granted granted Critical
Publication of CA2537087C publication Critical patent/CA2537087C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • D21C7/14—Means for circulating the lye

Landscapes

  • Paper (AREA)
  • Centrifugal Separators (AREA)
CA2537087A 2004-05-28 2005-05-25 Screen device for a digester for producing pulp Expired - Fee Related CA2537087C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FI20040730 2004-05-28
FI20040730A FI117477B (fi) 2004-05-28 2004-05-28 Sihtielin
PCT/FI2005/050174 WO2005116328A1 (en) 2004-05-28 2005-05-25 Screen device for a digester for producing pulp

Publications (2)

Publication Number Publication Date
CA2537087A1 CA2537087A1 (en) 2005-12-08
CA2537087C true CA2537087C (en) 2013-01-08

Family

ID=32338431

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2537087A Expired - Fee Related CA2537087C (en) 2004-05-28 2005-05-25 Screen device for a digester for producing pulp

Country Status (6)

Country Link
US (1) US20080169071A1 (fi)
EP (1) EP1769118B1 (fi)
AT (1) ATE553247T1 (fi)
CA (1) CA2537087C (fi)
FI (1) FI117477B (fi)
WO (1) WO2005116328A1 (fi)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2638196C (en) * 2007-08-07 2015-12-15 Andritz Inc. Method and system for semi-chemical pulping
US8647473B2 (en) 2011-01-25 2014-02-11 Metso Paper Sweden Ab Continuous digester with a bottom scraper equipped with draining apertures
SE539706C2 (en) * 2014-11-07 2017-11-07 Valmet Oy Method for recovering hydrolyzate

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1231247A (en) * 1913-08-14 1917-06-26 Walter K Freeman Apparatus for harvesting the constituents of wood and vegetable substances, distilling and purifying them.
DE517951C (de) * 1929-05-14 1931-07-30 Einar Morterud Einrichtung zur zwanglaeufigen Fuehrung der Lauge im Kreislauf durch Zellstoffkocher
US3215591A (en) * 1963-04-22 1965-11-02 Lummus Co Pressure impregnation apparatus for impregnating wood chips and the like
SE225814C1 (fi) * 1965-03-25 1969-03-25
US3475271A (en) * 1966-02-07 1969-10-28 Kamyr Ab Cellulose digester with washing apparatus
SE500455C2 (sv) * 1992-11-18 1994-06-27 Kamyr Ab Förfarande vid kontinuerlig kokning under förhöjt tryck och temperatur av fibermateral i en vertikal kokare
US6123808A (en) * 1997-12-09 2000-09-26 Ahlstrom Machinery Inc. Distribution of dilution liquor to the discharge of a cellulose pulp digester
US6120647A (en) * 1998-01-26 2000-09-19 Ahlstrom Machinery Inc. Simplified liquid removal system for a cellulose pulp digester

Also Published As

Publication number Publication date
US20080169071A1 (en) 2008-07-17
FI117477B (fi) 2006-10-31
EP1769118B1 (en) 2012-04-11
ATE553247T1 (de) 2012-04-15
EP1769118A1 (en) 2007-04-04
CA2537087A1 (en) 2005-12-08
FI20040730A0 (fi) 2004-05-28
WO2005116328A1 (en) 2005-12-08
FI20040730A (fi) 2005-11-29

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20160525

MKLA Lapsed

Effective date: 20160525