EP3464714A4 - Charge d'alcali double pour imprégnation de copeau - Google Patents

Charge d'alcali double pour imprégnation de copeau Download PDF

Info

Publication number
EP3464714A4
EP3464714A4 EP17803173.8A EP17803173A EP3464714A4 EP 3464714 A4 EP3464714 A4 EP 3464714A4 EP 17803173 A EP17803173 A EP 17803173A EP 3464714 A4 EP3464714 A4 EP 3464714A4
Authority
EP
European Patent Office
Prior art keywords
double alkali
chip impregnation
alkali charging
charging
impregnation
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.)
Withdrawn
Application number
EP17803173.8A
Other languages
German (de)
English (en)
Other versions
EP3464714A1 (fr
Inventor
Fredrik Wilgotson
Eduardo DEUD
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
Valmet AB
Original Assignee
Valmet Oy
Valmet AB
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 Valmet Oy, Valmet AB filed Critical Valmet Oy
Publication of EP3464714A1 publication Critical patent/EP3464714A1/fr
Publication of EP3464714A4 publication Critical patent/EP3464714A4/fr
Withdrawn legal-status Critical Current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
    • D21C1/00—Pretreatment of the finely-divided materials before digesting
    • D21C1/06—Pretreatment of the finely-divided materials before digesting with alkaline reacting compounds
    • 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
    • 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
    • D21C7/06—Feeding devices
    • 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
    • D21C7/12—Devices for regulating or controlling
EP17803173.8A 2016-05-27 2017-05-23 Charge d'alcali double pour imprégnation de copeau Withdrawn EP3464714A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE1650742 2016-05-27
PCT/SE2017/050555 WO2017204736A1 (fr) 2016-05-27 2017-05-23 Charge d'alcali double pour imprégnation de copeau

Publications (2)

Publication Number Publication Date
EP3464714A1 EP3464714A1 (fr) 2019-04-10
EP3464714A4 true EP3464714A4 (fr) 2019-12-25

Family

ID=60412891

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17803173.8A Withdrawn EP3464714A4 (fr) 2016-05-27 2017-05-23 Charge d'alcali double pour imprégnation de copeau

Country Status (5)

Country Link
US (1) US20190194867A1 (fr)
EP (1) EP3464714A4 (fr)
CN (1) CN109312537A (fr)
BR (1) BR112018070795A2 (fr)
WO (1) WO2017204736A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI128975B (en) * 2018-11-22 2021-04-15 Andritz Oy ARRANGEMENT FOR INSTALLING MONITORING SENSORS IN THE LIGNOCELLULOSE MATERIAL HANDLING DISH

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003106765A1 (fr) * 2001-12-17 2003-12-24 Kvaerner Pulping Ab Procede et systeme d'impregnation de copeaux
WO2010024763A1 (fr) * 2008-08-27 2010-03-04 Metso Fiber Karlstad Ab Cuve atmosphérique verticale unique pour l'étuvage, la transformation en pâte, l'imprégnation et la cuisson d'une matière fibreuse
WO2012005643A1 (fr) * 2010-07-09 2012-01-12 Metso Paper Sweden Ab Procédé et système pour imprégner des copeaux
WO2016072919A1 (fr) * 2014-11-07 2016-05-12 Valmet Ab Procédé de fonctionnement d'un système de digesteur à deux cuves

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2670512A1 (fr) * 1990-12-17 1992-06-19 Int Patents Corp Systeme d'alimentation en plantes annuelles ou copeaux de bois pour un reacteur de cuisson continu sous pression destine a la production de pate cellulosique.
US5203963A (en) * 1991-10-21 1993-04-20 A. Ahlstrom Corporation Continuous treatment of small chips
CN1067080A (zh) * 1992-04-15 1992-12-16 汪仲熙 低耗节能非木化学制浆回收蒸煮技术
US5674359A (en) * 1995-02-08 1997-10-07 Ahlstrom Machinery Inc. Continuous cooking of cellulosic fibrous material with cold alkali impregnation
SE506703C2 (sv) * 1995-07-12 1998-02-02 Kvaerner Pulping Tech Impregnering av fibermaterial i medström vid kontinuerlig kokning
US20020129911A1 (en) * 2000-10-16 2002-09-19 Marcoccia Bruno S. Process and configuration for providing external upflow/internal downflow in a continuous digester
BR112012003861B1 (pt) * 2009-08-19 2019-07-02 Valmet Aktiebolag Método e disposição para adicionar um licor de tratamento quente e vapor a um material celulósico triturado não vaporizado
CN103069072B (zh) * 2010-08-25 2015-05-20 维美德公司 用于浸渍木屑的方法、系统及收回滤筛部
CN102242512A (zh) * 2011-04-30 2011-11-16 李刚荣 高得率环保造纸制浆工艺方法及其制浆系统
CN105544264B (zh) * 2014-07-21 2017-08-04 江苏金沃机械有限公司 湿强废纸再利用化学机械制浆系统

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003106765A1 (fr) * 2001-12-17 2003-12-24 Kvaerner Pulping Ab Procede et systeme d'impregnation de copeaux
WO2010024763A1 (fr) * 2008-08-27 2010-03-04 Metso Fiber Karlstad Ab Cuve atmosphérique verticale unique pour l'étuvage, la transformation en pâte, l'imprégnation et la cuisson d'une matière fibreuse
WO2012005643A1 (fr) * 2010-07-09 2012-01-12 Metso Paper Sweden Ab Procédé et système pour imprégner des copeaux
WO2016072919A1 (fr) * 2014-11-07 2016-05-12 Valmet Ab Procédé de fonctionnement d'un système de digesteur à deux cuves

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2017204736A1 *

Also Published As

Publication number Publication date
WO2017204736A1 (fr) 2017-11-30
BR112018070795A2 (pt) 2019-02-05
US20190194867A1 (en) 2019-06-27
EP3464714A1 (fr) 2019-04-10
CN109312537A (zh) 2019-02-05

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