SE9903470L - Continuous cellulose pulp cooker - Google Patents

Continuous cellulose pulp cooker

Info

Publication number
SE9903470L
SE9903470L SE9903470A SE9903470A SE9903470L SE 9903470 L SE9903470 L SE 9903470L SE 9903470 A SE9903470 A SE 9903470A SE 9903470 A SE9903470 A SE 9903470A SE 9903470 L SE9903470 L SE 9903470L
Authority
SE
Sweden
Prior art keywords
cellulose pulp
top separator
inverted top
continuous cellulose
extracted
Prior art date
Application number
SE9903470A
Other languages
Swedish (sv)
Other versions
SE522877C2 (en
SE9903470D0 (en
Inventor
Richard Laakso
C Bertil Stromberg
Kaj O Henricson
Original Assignee
Ahlstrom Machinery 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=22710253&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=SE9903470(L) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from US09/192,578 external-priority patent/US6174411B1/en
Application filed by Ahlstrom Machinery Inc filed Critical Ahlstrom Machinery Inc
Publication of SE9903470D0 publication Critical patent/SE9903470D0/en
Publication of SE9903470L publication Critical patent/SE9903470L/en
Publication of SE522877C2 publication Critical patent/SE522877C2/en

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
    • D21C7/06—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
    • 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

Landscapes

  • Paper (AREA)

Abstract

A cellulose pulp continuous digester (e. g. for producing kraft pulp) is operated so that it has an inverted top separator and is hydraulically filled to above the level of the inverted top separator, and may be substantially completely hydraulically full. A plurality of different liquor flows may be extracted from the inverted top separator, and an in-line drainer may be provided in a conduit through which liquid is extracted.
SE9903470A 1998-11-17 1999-09-24 Process for operating a continuous cellulose pulp cooker and a cooker SE522877C2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/192,578 US6174411B1 (en) 1997-02-10 1998-11-17 Continuous digester with inverted top separator

Publications (3)

Publication Number Publication Date
SE9903470D0 SE9903470D0 (en) 1999-09-24
SE9903470L true SE9903470L (en) 2000-05-18
SE522877C2 SE522877C2 (en) 2004-03-16

Family

ID=22710253

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9903470A SE522877C2 (en) 1998-11-17 1999-09-24 Process for operating a continuous cellulose pulp cooker and a cooker

Country Status (4)

Country Link
JP (2) JP3461311B2 (en)
CA (1) CA2285714C (en)
FI (1) FI122630B (en)
SE (1) SE522877C2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7309401B2 (en) * 2003-05-12 2007-12-18 Andritz Inc. Top separator for gas phase and hydraulic phase continuous digesters and method for converting digester
KR100692394B1 (en) 2005-08-10 2007-03-09 주식회사 새 한 Method of producing reverse osmosis membrane with boron removal effect
SE529573C2 (en) * 2006-12-13 2007-09-18 Metso Fiber Karlstad Ab Method for manufacturing cellulose pulp in continuous digester, involves separating free liquid from cellulose tip through top separator, where inlet temperature of free liquid is higher than outlet temperature of free liquid
US8734610B2 (en) * 2007-05-23 2014-05-27 Andritz Inc. Two vessel reactor system and method for hydrolysis and digestion of wood chips with chemical enhanced wash method
US20090188641A1 (en) * 2008-01-30 2009-07-30 Andritz Inc. Method and system for measuring and controlling digester or impregnation vessel chip level by measuring chip pressure
SE543151C2 (en) * 2018-07-02 2020-10-13 Valmet Oy Feeding system and method for feeding comminuted cellulosic material to a high-pressure treatment zone

Also Published As

Publication number Publication date
CA2285714A1 (en) 2000-05-17
JP3898160B2 (en) 2007-03-28
SE522877C2 (en) 2004-03-16
SE9903470D0 (en) 1999-09-24
FI19992099A (en) 2000-05-17
JP2000154486A (en) 2000-06-06
JP3461311B2 (en) 2003-10-27
JP2003328286A (en) 2003-11-19
CA2285714C (en) 2004-09-21
FI122630B (en) 2012-04-30

Similar Documents

Publication Publication Date Title
CN110438834B (en) Camphorwood sulfate pulping process
ID18488A (en) SOLVED SOLID MATERIAL CONTROL IN PAPER GRASS PRODUCTION (fraction of patent application P-940686)
FI974575A0 (en) Foerfarande Foer blekning av chemical pulp and anvaendning av en blekningsloesning
RU95112468A (en) Method of continuous digestion of fibrous material
CA2404796A1 (en) Low temperature gas phase continuous digester
SE9903202D0 (en) Method and apparatus for continuously pulping cellulosic fibrous material
PE20001203A1 (en) A SANITARY PAPER PRODUCT MADE THROUGH THE MODIFICATION OF ROUGH FIBERS AND ITS MANUFACTURING PROCESS
SE9903470L (en) Continuous cellulose pulp cooker
RU2008130768A (en) METHOD AND SYSTEM FOR BREWING OF SEMI-CELLULOSE
SE9803982D0 (en) Improved distribution of dilution liquor to the discharge of cellulose pulp digester
FI892200A (en) FOERBAETTRING AV KVALITETEN HOS CELLULOSA VID KONTINUERLIG KOKNING.
SE0301162L (en) Method for impregnation of chips with acidic treatment liquid in connection with sulphate boiling of cellulose pulp
RU2009126544A (en) METHOD FOR BLEACHING CELLULAR PAPER BY FINITE OZONE PROCESSING AT HIGH TEMPERATURE
FI921517A0 (en) TVAOSTEGSTRYCKDIFFUSOER.
CA2357864A1 (en) Process for continuous cooking of pulp
NO973596D0 (en) Method of making pulp
SE0300258D0 (en) Gas phase continuous digester having an inverted top separator with liquor ingection
ES2171562T3 (en) IMPREGNATION OF BLACK BLEACH IN A HYDRAULIC DIGESTOR OF A SINGLE CUBA.
GB904279A (en) Method of processing waste paper
SE0203600D0 (en) Processes and systems for handling knots in a chemical pulping process
Ihatsu Cost efficient extractive removal of birch pulp
CN103266517A (en) Technology for pulping broussonetia papyrifera white barks by using phosphoric acid pretreatment and magnesiumsulfite process
SE0201549D0 (en) Strainer for the extraction of boiling liquid in a continuous boiler

Legal Events

Date Code Title Description
NUG Patent has lapsed