CA2567046C - Tamis central - Google Patents

Tamis central Download PDF

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Publication number
CA2567046C
CA2567046C CA2567046A CA2567046A CA2567046C CA 2567046 C CA2567046 C CA 2567046C CA 2567046 A CA2567046 A CA 2567046A CA 2567046 A CA2567046 A CA 2567046A CA 2567046 C CA2567046 C CA 2567046C
Authority
CA
Canada
Prior art keywords
digester
central
liquor
screen
extraction
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
CA2567046A
Other languages
English (en)
Other versions
CA2567046A1 (fr
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 CA2567046A1 publication Critical patent/CA2567046A1/fr
Application granted granted Critical
Publication of CA2567046C publication Critical patent/CA2567046C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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

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  • Paper (AREA)

Abstract

L'invention concerne des procédés pour produire en continu une pulpe à partir d'un matériau contenant de la lignocellulose dans un digesteur dans lequel le matériau poreux contenant de la lignocellulose est alimenté du haut vers le bas. La liqueur est pompée via une colonne poreuse du matériau contenant de la lignocellulose dans une direction prédéterminée et simultanément évacuée via au moins un assemblage de tamis et via l'ensemble de tamis de paroi. L'invention concerne aussi un digesteur destiné à produire la pulpe en continu à partir du matériau contenant de la lignocellulose.
CA2567046A 2004-05-28 2005-05-24 Tamis central Expired - Fee Related CA2567046C (fr)

Applications Claiming Priority (3)

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

Publications (2)

Publication Number Publication Date
CA2567046A1 CA2567046A1 (fr) 2005-12-08
CA2567046C true CA2567046C (fr) 2013-07-02

Family

ID=35450929

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2567046A Expired - Fee Related CA2567046C (fr) 2004-05-28 2005-05-24 Tamis central

Country Status (4)

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

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8647473B2 (en) 2011-01-25 2014-02-11 Metso Paper Sweden Ab Continuous digester with a bottom scraper equipped with draining apertures
JP5786087B2 (ja) * 2011-03-25 2015-09-30 ヴァルメト アクチボラグ ダウンフロー容器内のセルロース材料に処理液を添加する方法及び装置
CN106164370B (zh) * 2014-04-07 2019-01-18 斯道拉恩索公司 在连续蒸煮器中蒸煮纤维素纤维材料的方法
CN117463752B (zh) * 2023-12-01 2024-04-09 轻工业杭州机电设计研究院有限公司 大宗有机废弃物高值化利用蒸煮装置及其使用方法

Family Cites Families (13)

* 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 (fr) * 1965-03-25 1969-03-25
US3475271A (en) * 1966-02-07 1969-10-28 Kamyr Ab Cellulose digester with washing apparatus
DE1223343B (de) * 1967-05-15 1966-08-25 Improved Machinery Inc Zylindrisches Spaltfilter
US4568419A (en) * 1984-02-27 1986-02-04 Laakso Oliver A Method of treating comminuted cellulosic fibrous material in a vertical vessel
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
US5489363A (en) * 1993-05-04 1996-02-06 Kamyr, Inc. Pulping with low dissolved solids for improved pulp strength
US6103058A (en) 1997-08-07 2000-08-15 Kvaerner Pulping Ab Method for the continuous cooking of pulp
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
US6277240B1 (en) * 1998-10-02 2001-08-21 Andritz-Ahlstrom Inc. Method for continuously pulping cellulosic fibrous material

Also Published As

Publication number Publication date
EP1778912A1 (fr) 2007-05-02
US20050274468A1 (en) 2005-12-15
EP1778912B1 (fr) 2013-07-10
CA2567046A1 (fr) 2005-12-08
WO2005116327A1 (fr) 2005-12-08
EP1778912A4 (fr) 2010-06-16

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Legal Events

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Effective date: 20160524