EP3606636A4 - Pressurized disc filter for causticization liquors containing lime mud - Google Patents

Pressurized disc filter for causticization liquors containing lime mud Download PDF

Info

Publication number
EP3606636A4
EP3606636A4 EP18780721.9A EP18780721A EP3606636A4 EP 3606636 A4 EP3606636 A4 EP 3606636A4 EP 18780721 A EP18780721 A EP 18780721A EP 3606636 A4 EP3606636 A4 EP 3606636A4
Authority
EP
European Patent Office
Prior art keywords
causticization
disc filter
lime mud
containing lime
liquors containing
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Withdrawn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
EP18780721.9A
Other languages
German (de)
French (fr)
Other versions
EP3606636A1 (en
Inventor
Roger JANSSON
Jerk SÖDERMAN
Patrik BJÖRNVALL
Henrik RANSJÖ
Patrik LÖWNERTZ
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 EP3606636A1 publication Critical patent/EP3606636A1/en
Publication of EP3606636A4 publication Critical patent/EP3606636A4/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/15—Filters with filtering elements which move during the filtering operation with rotary plane filtering surfaces
    • B01D33/21—Filters with filtering elements which move during the filtering operation with rotary plane filtering surfaces with hollow filtering discs transversely mounted on a hollow rotary shaft
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/80—Accessories
    • B01D33/804—Accessories integrally combined with devices for controlling the filtration
    • B01D33/807—Accessories integrally combined with devices for controlling the filtration by level measuring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/80—Accessories
    • B01D33/804—Accessories integrally combined with devices for controlling the filtration
    • B01D33/808—Accessories integrally combined with devices for controlling the filtration by pressure measuring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/80—Accessories
    • B01D33/82—Means for pressure distribution
    • 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
    • D21C11/00—Regeneration of pulp liquors or effluent waste waters
    • 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
    • D21C11/00—Regeneration of pulp liquors or effluent waste waters
    • D21C11/04—Regeneration of pulp liquors or effluent waste waters of alkali lye

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Paper (AREA)
  • Treatment Of Sludge (AREA)
  • Filtration Of Liquid (AREA)
EP18780721.9A 2017-04-07 2018-04-04 Pressurized disc filter for causticization liquors containing lime mud Withdrawn EP3606636A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE1750424A SE540553C2 (en) 2017-04-07 2017-04-07 Pressurized disc filter for causticization liquors containing lime mud
PCT/SE2018/050354 WO2018186795A1 (en) 2017-04-07 2018-04-04 Pressurized disc filter for causticization liquors containing lime mud

Publications (2)

Publication Number Publication Date
EP3606636A1 EP3606636A1 (en) 2020-02-12
EP3606636A4 true EP3606636A4 (en) 2021-01-06

Family

ID=63580878

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18780721.9A Withdrawn EP3606636A4 (en) 2017-04-07 2018-04-04 Pressurized disc filter for causticization liquors containing lime mud

Country Status (6)

Country Link
EP (1) EP3606636A4 (en)
CN (1) CN110475596A (en)
BR (1) BR112019019801A2 (en)
CL (1) CL2019002845A1 (en)
SE (1) SE540553C2 (en)
WO (1) WO2018186795A1 (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3540336A1 (en) * 1984-11-23 1986-05-28 Aktiebolaget Hedemora Verkstäder, Hedemora CIRCULAR DISC FILTER
WO1998016292A2 (en) * 1996-10-15 1998-04-23 Baker Hughes Incorporated Agitator for use with a disc filter
WO1999010074A1 (en) * 1997-08-21 1999-03-04 Kvaerner Pulping As A rotating filter and a method for filtration of a flowing substance
WO2002063095A1 (en) * 2001-02-07 2002-08-15 Kvaerner Pulping Ab Pipe system for receiving and transporting lime sludge from a white liquor filter
WO2005116329A1 (en) * 2004-05-26 2005-12-08 Kvaerner Pulping Ab Method and device for cleaning of filter
WO2009072978A1 (en) * 2007-12-06 2009-06-11 Metso Fiber Karlstad Ab System for reception and transport of lime mud from a white liquor filter
WO2011078749A1 (en) * 2009-12-23 2011-06-30 Metso Paper Sweden Ab Method and system for washing lime mud
WO2017007417A1 (en) * 2015-07-09 2017-01-12 Valmet Ab Agitator system for a disc filter

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE463771C (en) * 1985-05-02 1998-09-30 Caustec Ab Apparatus and method for separating white liquor, mesa and possibly sludge using a rotating disk filter
SE451948B (en) * 1985-05-02 1987-11-09 Hedemora Ab FILTER FOR CONTINUOUS FILTERING UNDER PRESSURE OF A SUSPENSION
SE464390B (en) * 1989-06-14 1991-04-22 Celleco Hedemora Ab FILTER FOR CONTINUOUS FILTERING
SE526706C2 (en) * 2004-04-16 2005-10-25 Kvaerner Pulping Tech Method and apparatus for washing mesa
BR112015000377B1 (en) * 2012-07-09 2020-12-08 Valmet Ab method and device for obtaining concentrated white liquor and lime mud with low residual alkali content

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3540336A1 (en) * 1984-11-23 1986-05-28 Aktiebolaget Hedemora Verkstäder, Hedemora CIRCULAR DISC FILTER
WO1998016292A2 (en) * 1996-10-15 1998-04-23 Baker Hughes Incorporated Agitator for use with a disc filter
WO1999010074A1 (en) * 1997-08-21 1999-03-04 Kvaerner Pulping As A rotating filter and a method for filtration of a flowing substance
WO2002063095A1 (en) * 2001-02-07 2002-08-15 Kvaerner Pulping Ab Pipe system for receiving and transporting lime sludge from a white liquor filter
WO2005116329A1 (en) * 2004-05-26 2005-12-08 Kvaerner Pulping Ab Method and device for cleaning of filter
WO2009072978A1 (en) * 2007-12-06 2009-06-11 Metso Fiber Karlstad Ab System for reception and transport of lime mud from a white liquor filter
WO2011078749A1 (en) * 2009-12-23 2011-06-30 Metso Paper Sweden Ab Method and system for washing lime mud
WO2017007417A1 (en) * 2015-07-09 2017-01-12 Valmet Ab Agitator system for a disc filter

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2018186795A1 *

Also Published As

Publication number Publication date
WO2018186795A1 (en) 2018-10-11
SE1750424A1 (en) 2018-09-25
SE540553C2 (en) 2018-09-25
EP3606636A1 (en) 2020-02-12
BR112019019801A2 (en) 2020-04-22
CL2019002845A1 (en) 2019-12-27
CN110475596A (en) 2019-11-19

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