SE0602268L - Washing press comprising separation of filtrate - Google Patents

Washing press comprising separation of filtrate

Info

Publication number
SE0602268L
SE0602268L SE0602268A SE0602268A SE0602268L SE 0602268 L SE0602268 L SE 0602268L SE 0602268 A SE0602268 A SE 0602268A SE 0602268 A SE0602268 A SE 0602268A SE 0602268 L SE0602268 L SE 0602268L
Authority
SE
Sweden
Prior art keywords
filtrate
pulp
perforated
perforated outer
pulp passage
Prior art date
Application number
SE0602268A
Other languages
Swedish (sv)
Other versions
SE530282C2 (en
Inventor
Rickard Andersson
Original Assignee
Metso Paper 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
Application filed by Metso Paper Inc filed Critical Metso Paper Inc
Priority to SE0602268A priority Critical patent/SE0602268L/en
Priority to CN200780040006XA priority patent/CN101529016B/en
Priority to CA002667242A priority patent/CA2667242A1/en
Priority to PCT/SE2007/050767 priority patent/WO2008051157A1/en
Priority to EP07835351A priority patent/EP2079872A4/en
Publication of SE530282C2 publication Critical patent/SE530282C2/en
Publication of SE0602268L publication Critical patent/SE0602268L/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
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/02—Washing ; Displacing cooking or pulp-treating liquors contained in the pulp by fluids, e.g. wash water or other pulp-treating agents
    • D21C9/06—Washing ; Displacing cooking or pulp-treating liquors contained in the pulp by fluids, e.g. wash water or other pulp-treating agents in filters ; Washing of concentrated pulp, e.g. pulp mats, on filtering surfaces
    • 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
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/18—De-watering; Elimination of cooking or pulp-treating liquors from the pulp

Abstract

The invention relates to a washing arrangement (100) comprising two co-operating cylindrical press rolls (102), at least one having a perforated outer surface (104). There is a guide surface (106) at a distance from the perforated outer surface partially enclosing the press roll in the circumferential direction, and a pulp passage (108) is provided between the perforated outer surface and the guide surface. During operation, pulp fed into the pulp passage is guided in direction of rotation and pressed between the press rolls. Filtrate passes through the perforated surface and into the press roll. It is proposed to provide the washing arrangement with means for separate collection of a filtrate flow (128) from a first portion of the pulp passage. Such filtrate contains comparatively high amounts of fiber and can by means of the invention be handled separately from the main filtrate flow (130), reducing the negative effects associated with fibers in the filtrate.
SE0602268A 2006-10-27 2006-10-27 Washing press comprising separation of filtrate SE0602268L (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
SE0602268A SE0602268L (en) 2006-10-27 2006-10-27 Washing press comprising separation of filtrate
CN200780040006XA CN101529016B (en) 2006-10-27 2007-10-23 Press washer comprising separation of filtrates
CA002667242A CA2667242A1 (en) 2006-10-27 2007-10-23 Press washer comprising separation of filtrates
PCT/SE2007/050767 WO2008051157A1 (en) 2006-10-27 2007-10-23 Press washer comprising separation of filtrates
EP07835351A EP2079872A4 (en) 2006-10-27 2007-10-23 Press washer comprising separation of filtrates

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE0602268A SE0602268L (en) 2006-10-27 2006-10-27 Washing press comprising separation of filtrate

Publications (2)

Publication Number Publication Date
SE530282C2 SE530282C2 (en) 2008-04-15
SE0602268L true SE0602268L (en) 2008-04-15

Family

ID=39272893

Family Applications (1)

Application Number Title Priority Date Filing Date
SE0602268A SE0602268L (en) 2006-10-27 2006-10-27 Washing press comprising separation of filtrate

Country Status (5)

Country Link
EP (1) EP2079872A4 (en)
CN (1) CN101529016B (en)
CA (1) CA2667242A1 (en)
SE (1) SE0602268L (en)
WO (1) WO2008051157A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE0802072A2 (en) * 2008-10-01 2010-07-20 Metso Paper Inc Washing press for washing cellulose pulp
SE533737C2 (en) * 2008-10-27 2010-12-21 Metso Paper Inc Apparatus and method for improved drainage efficiency
SE533686C2 (en) * 2009-04-09 2010-12-07 Andritz Oy Pressure for dewatering a suspension, and ways of cleaning it
SE537925C2 (en) * 2013-05-03 2015-11-24 Valmet Oy Method and system for washing cellulose pulp

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE380300C (en) 1974-03-04 1984-10-18 Sunds Ab DEVICE FOR LIQUID TREATMENT OF A FIBER SUSPENSION
BR5901347U (en) * 1979-09-03 1981-04-07 Voith Sa Maquinas Equip FILTER FOR THICKENING FIBROUS MASS SUSPENSIONS
DE69110276T2 (en) * 1990-02-16 1996-02-22 Beloit Technologies Inc LIQUID FILTERING DEVICE.
US5046338A (en) * 1990-06-13 1991-09-10 Ingersoll-Rand Company Multiphase pulp washer
FI88940C (en) * 1991-06-17 1993-07-26 Sunds Porin Tehtaat Oy DRUMTVAETTARE
US5722264A (en) * 1995-08-07 1998-03-03 Beloit Technologies, Inc. Single roll displacement wash press
CN2263126Y (en) * 1996-05-21 1997-09-24 东莞市沙田东江机械制造厂 Pulp washing machine
SE9900835L (en) * 1999-03-09 2000-05-08 Kvaerner Pulping Tech Apparatus for washing and dewatering a fiber pulp suspension.
CN2441845Y (en) * 2000-09-21 2001-08-08 潍坊市轻工机械研究所 Double roller replacable wash engine
CN2500704Y (en) * 2001-09-12 2002-07-17 章丘市造纸机械辅机厂 Double-roll displacing pressing pulp washer
SE525565C2 (en) * 2003-07-01 2005-03-08 Metso Paper Inc Process and washing press for washing and dewatering a fiber suspension
SE528867C2 (en) * 2005-07-04 2007-03-06 Metso Paper Inc Roll body for press roll and roll press comprising two press rolls

Also Published As

Publication number Publication date
CN101529016A (en) 2009-09-09
EP2079872A4 (en) 2012-07-04
CN101529016B (en) 2011-08-03
EP2079872A1 (en) 2009-07-22
CA2667242A1 (en) 2008-05-02
SE530282C2 (en) 2008-04-15
WO2008051157A1 (en) 2008-05-02

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Legal Events

Date Code Title Description
NUG Patent has lapsed