EP1778912A4 - Central screen - Google Patents

Central screen

Info

Publication number
EP1778912A4
EP1778912A4 EP05742066A EP05742066A EP1778912A4 EP 1778912 A4 EP1778912 A4 EP 1778912A4 EP 05742066 A EP05742066 A EP 05742066A EP 05742066 A EP05742066 A EP 05742066A EP 1778912 A4 EP1778912 A4 EP 1778912A4
Authority
EP
European Patent Office
Prior art keywords
central screen
screen
central
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.)
Granted
Application number
EP05742066A
Other languages
German (de)
French (fr)
Other versions
EP1778912B1 (en
EP1778912A1 (en
Inventor
Lasse Hernesniemi
Tuomo Nykaenen
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 EP1778912A1 publication Critical patent/EP1778912A1/en
Publication of EP1778912A4 publication Critical patent/EP1778912A4/en
Application granted granted Critical
Publication of EP1778912B1 publication Critical patent/EP1778912B1/en
Not-in-force 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
    • 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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/22—Other features of pulping processes
    • D21C3/24—Continuous processes
EP05742066.3A 2004-05-28 2005-05-24 Central screen Not-in-force EP1778912B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/856,721 US20050274468A1 (en) 2004-05-28 2004-05-28 Central screen
PCT/FI2005/050173 WO2005116327A1 (en) 2004-05-28 2005-05-24 Central screen

Publications (3)

Publication Number Publication Date
EP1778912A1 EP1778912A1 (en) 2007-05-02
EP1778912A4 true EP1778912A4 (en) 2010-06-16
EP1778912B1 EP1778912B1 (en) 2013-07-10

Family

ID=35450929

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05742066.3A Not-in-force EP1778912B1 (en) 2004-05-28 2005-05-24 Central screen

Country Status (4)

Country Link
US (1) US20050274468A1 (en)
EP (1) EP1778912B1 (en)
CA (1) CA2567046C (en)
WO (1) WO2005116327A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012102650A1 (en) * 2011-01-25 2012-08-02 Metso Paper Sweden Ab Continuous digester with a bottom scraper equipped with draining apertures
BR112013024451A2 (en) * 2011-03-25 2019-09-24 Metso Paper Sweden Ab method and arrangement for adding treatment liquids for cellulose feedstock in a continuous process using down flow vessels
WO2015155642A1 (en) * 2014-04-07 2015-10-15 Stora Enso Oyj A method of digesting cellulose fibrous material in a continuous digester
CN117463752B (en) * 2023-12-01 2024-04-09 轻工业杭州机电设计研究院有限公司 High-value utilization cooking device for bulk organic wastes and application method thereof

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3385753A (en) * 1967-05-15 1968-05-28 Improved Machinery Inc Strainer
US4568419A (en) * 1984-02-27 1986-02-04 Laakso Oliver A Method of treating comminuted cellulosic fibrous material in a vertical vessel
WO1994011566A1 (en) * 1992-11-18 1994-05-26 Kamyr Aktiebolag Process for continuous cooking of pulp
US5620562A (en) * 1993-05-04 1997-04-15 Ahlstrom Machinery Inc. Dissolved solids control in pulp production
US6103058A (en) * 1997-08-07 2000-08-15 Kvaerner Pulping Ab Method for the continuous cooking of pulp
US6277240B1 (en) * 1998-10-02 2001-08-21 Andritz-Ahlstrom Inc. Method for continuously pulping cellulosic fibrous material

Family Cites Families (7)

* 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 (en) * 1929-05-14 1931-07-30 Einar Morterud Device for the forced circulation of the lye in the cellulose digester
US3215591A (en) * 1963-04-22 1965-11-02 Lummus Co Pressure impregnation apparatus for impregnating wood chips and the like
SE225814C1 (en) * 1965-03-25 1969-03-25
US3475271A (en) * 1966-02-07 1969-10-28 Kamyr Ab Cellulose digester with washing apparatus
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

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3385753A (en) * 1967-05-15 1968-05-28 Improved Machinery Inc Strainer
US4568419A (en) * 1984-02-27 1986-02-04 Laakso Oliver A Method of treating comminuted cellulosic fibrous material in a vertical vessel
WO1994011566A1 (en) * 1992-11-18 1994-05-26 Kamyr Aktiebolag Process for continuous cooking of pulp
US5620562A (en) * 1993-05-04 1997-04-15 Ahlstrom Machinery Inc. Dissolved solids control in pulp production
US6103058A (en) * 1997-08-07 2000-08-15 Kvaerner Pulping Ab Method for the continuous cooking of pulp
US6277240B1 (en) * 1998-10-02 2001-08-21 Andritz-Ahlstrom Inc. Method for continuously pulping cellulosic fibrous material

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2005116327A1 *

Also Published As

Publication number Publication date
US20050274468A1 (en) 2005-12-15
WO2005116327A1 (en) 2005-12-08
EP1778912B1 (en) 2013-07-10
EP1778912A1 (en) 2007-05-02
CA2567046A1 (en) 2005-12-08
CA2567046C (en) 2013-07-02

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