EP3551797A4 - Counter-spiral feeding in a top separator for a digester - Google Patents

Counter-spiral feeding in a top separator for a digester Download PDF

Info

Publication number
EP3551797A4
EP3551797A4 EP17879158.8A EP17879158A EP3551797A4 EP 3551797 A4 EP3551797 A4 EP 3551797A4 EP 17879158 A EP17879158 A EP 17879158A EP 3551797 A4 EP3551797 A4 EP 3551797A4
Authority
EP
European Patent Office
Prior art keywords
digester
counter
spiral feeding
top separator
separator
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
EP17879158.8A
Other languages
German (de)
French (fr)
Other versions
EP3551797A1 (en
EP3551797B1 (en
Inventor
Roger JANSSON
Jerk SÖDERMAN
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 EP3551797A1 publication Critical patent/EP3551797A1/en
Publication of EP3551797A4 publication Critical patent/EP3551797A4/en
Application granted granted Critical
Publication of EP3551797B1 publication Critical patent/EP3551797B1/en
Active 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
    • D21C7/06—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
EP17879158.8A 2016-12-09 2017-11-30 Counter-spiral feeding in a top separator for a digester Active EP3551797B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE1651626A SE1651626A1 (en) 2016-12-09 2016-12-09 Counter-spiral feeding in a top separator for a digester
PCT/SE2017/051197 WO2018106169A1 (en) 2016-12-09 2017-11-30 Counter-spiral feeding in a top separator for a digester

Publications (3)

Publication Number Publication Date
EP3551797A1 EP3551797A1 (en) 2019-10-16
EP3551797A4 true EP3551797A4 (en) 2020-05-27
EP3551797B1 EP3551797B1 (en) 2022-09-14

Family

ID=62105059

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17879158.8A Active EP3551797B1 (en) 2016-12-09 2017-11-30 Counter-spiral feeding in a top separator for a digester

Country Status (4)

Country Link
EP (1) EP3551797B1 (en)
BR (1) BR112019006058B1 (en)
SE (1) SE1651626A1 (en)
WO (1) WO2018106169A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113976598A (en) * 2021-11-25 2022-01-28 重庆长征重工有限责任公司 Screw extrusion feeding device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3471366A (en) * 1963-01-08 1969-10-07 Defibrator Ab Apparatus for use in the production of pulp from lignocellulose containing material
US20020074101A1 (en) * 2000-12-19 2002-06-20 Vogel Keith P. Top separator with intraseal for digester vessel in a pulp or fiber processing system
US20030145963A1 (en) * 2002-02-04 2003-08-07 Stromberg C. Bertil Gas phase continuous digester having an inverted top separator with liquor injection
EP2607547A1 (en) * 2011-12-07 2013-06-26 Andritz, Inc. Screen basket having diagonal slots for top separator of a digester

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3902962A (en) * 1969-11-14 1975-09-02 Rolf Bertil Reinhall Liquid separator for lignocellulose containing material
US6086717A (en) * 1997-08-07 2000-07-11 Kvaerner Pulping Ab Separator having a screen basket disposed in a digester
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
WO2012060749A1 (en) * 2010-11-03 2012-05-10 Metso Paper Sweden Ab Top separator for steam/liquid digester

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3471366A (en) * 1963-01-08 1969-10-07 Defibrator Ab Apparatus for use in the production of pulp from lignocellulose containing material
US20020074101A1 (en) * 2000-12-19 2002-06-20 Vogel Keith P. Top separator with intraseal for digester vessel in a pulp or fiber processing system
US20030145963A1 (en) * 2002-02-04 2003-08-07 Stromberg C. Bertil Gas phase continuous digester having an inverted top separator with liquor injection
EP2607547A1 (en) * 2011-12-07 2013-06-26 Andritz, Inc. Screen basket having diagonal slots for top separator of a digester

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2018106169A1 *

Also Published As

Publication number Publication date
EP3551797A1 (en) 2019-10-16
SE540251C2 (en) 2018-05-15
EP3551797B1 (en) 2022-09-14
BR112019006058A2 (en) 2019-06-18
WO2018106169A1 (en) 2018-06-14
SE1651626A1 (en) 2018-05-15
BR112019006058B1 (en) 2022-12-13

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