SE8306853L - VIEW TO CONTINUOUS DISTRIBUTION OF FINALLY DISTRIBUTED CELLULOSIC MATERIAL - Google Patents

VIEW TO CONTINUOUS DISTRIBUTION OF FINALLY DISTRIBUTED CELLULOSIC MATERIAL

Info

Publication number
SE8306853L
SE8306853L SE8306853A SE8306853A SE8306853L SE 8306853 L SE8306853 L SE 8306853L SE 8306853 A SE8306853 A SE 8306853A SE 8306853 A SE8306853 A SE 8306853A SE 8306853 L SE8306853 L SE 8306853L
Authority
SE
Sweden
Prior art keywords
zone
impregnation
liquor
flow
fed
Prior art date
Application number
SE8306853A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE452175B (en
SE452175C (en
SE8306853D0 (en
Inventor
P H Ostman
Original Assignee
Ekono 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 Ekono Oy filed Critical Ekono Oy
Publication of SE8306853D0 publication Critical patent/SE8306853D0/en
Publication of SE8306853L publication Critical patent/SE8306853L/en
Publication of SE452175B publication Critical patent/SE452175B/en
Publication of SE452175C publication Critical patent/SE452175C/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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/22—Other features of pulping processes

Landscapes

  • Paper (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)

Abstract

The invention relates to a method for use in continuous digestion of finely-divided cellulose-containing material, such as wood chips. According to the invention said finely-divided material is fed in a liquid-filled treatment vessel as a continuous chip pillar through a feeding zone, a heating and impregnation zone, a digesting zone, and a washing zone, the temperature in the heating and impregnation zone being kept lower than in the digesting zone. In order to obtain stable temperature and chemical profiles in these zones the liquor fed in with the chips is caused to flow through the chip pillar in the feeding zone in the direction of feed of the chips with such velocity before said liquor is withdrawn that said chip pillar is fed through the subsequent impregnation zone, where a flow of impregnation liquor in counter-current to the advancing chip pillar is so regulated that the heat-capacity flow of said impregnation liquor is at least equal to the heat-capacity flow of the advancing chip pillar.
SE8306853A 1982-12-14 1983-12-12 SET FOR CONTINUOUS DISTRIBUTION OF FINISHED CELLULOSALLY MATERIAL SE452175C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI824282A FI66215C (en) 1982-12-14 1982-12-14 SAETTING VIDEO CONTAINER UPPSLUTNING AV FINFOERDELAT CELLULOSAHALTIGT MATERIAL

Publications (4)

Publication Number Publication Date
SE8306853D0 SE8306853D0 (en) 1983-12-12
SE8306853L true SE8306853L (en) 1984-06-15
SE452175B SE452175B (en) 1987-11-16
SE452175C SE452175C (en) 1990-03-26

Family

ID=8516450

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8306853A SE452175C (en) 1982-12-14 1983-12-12 SET FOR CONTINUOUS DISTRIBUTION OF FINISHED CELLULOSALLY MATERIAL

Country Status (12)

Country Link
JP (1) JPS59137589A (en)
AT (1) AT384631B (en)
AU (1) AU548448B2 (en)
BR (1) BR8306977A (en)
CA (1) CA1210907A (en)
DE (1) DE3344865C2 (en)
FI (1) FI66215C (en)
FR (1) FR2537621B1 (en)
NO (1) NO161927C (en)
SE (1) SE452175C (en)
SU (1) SU1475491A3 (en)
ZA (1) ZA838909B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE506458C2 (en) 1996-02-09 1997-12-15 Kvaerner Pulping Tech Continuous boiling of cellulosic material with heat exchange between boiler extraction and circulating boiling liquid
US5958181A (en) * 1997-08-07 1999-09-28 Ahlstrom Machinery, Inc. Continuous cooking with a two-stage cool impregnation
RU2447216C1 (en) * 2011-01-17 2012-04-10 Тарантин Сергей Анатольевич Method of delignification of wood chips in manufacturing of cellulose
JP5786087B2 (en) * 2011-03-25 2015-09-30 ヴァルメト アクチボラグ Method and apparatus for adding treatment liquid to cellulosic material in downflow container

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1907001A1 (en) * 1968-02-13 1969-09-11 Sunds Ab Method and device for heating fiber material
SE343344B (en) * 1970-06-29 1972-03-06 Kamyr Ab
CA1002361A (en) * 1973-01-03 1976-12-28 James R. Prough Digester control process and apparatus
US4071399A (en) * 1976-09-01 1978-01-31 Kamyr, Inc. Apparatus and method for the displacement impregnation of cellulosic chips material

Also Published As

Publication number Publication date
DE3344865C2 (en) 1985-09-19
FI66215B (en) 1984-05-31
FR2537621A1 (en) 1984-06-15
CA1210907A (en) 1986-09-09
SE452175B (en) 1987-11-16
DE3344865A1 (en) 1984-06-14
AU548448B2 (en) 1985-12-12
NO161927C (en) 1989-10-11
BR8306977A (en) 1984-07-24
FR2537621B1 (en) 1985-11-22
ZA838909B (en) 1984-07-25
FI66215C (en) 1984-09-10
SE452175C (en) 1990-03-26
AT384631B (en) 1987-12-10
ATA427983A (en) 1987-05-15
FI824282A0 (en) 1982-12-14
JPS59137589A (en) 1984-08-07
NO161927B (en) 1989-07-03
SU1475491A3 (en) 1989-04-23
SE8306853D0 (en) 1983-12-12
JPS6347836B2 (en) 1988-09-26
NO834466L (en) 1984-06-15
AU2184783A (en) 1984-06-21

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