CA2456538C - Procede dans un traitement de papier ou de pate pour le controle de l'etat chimique de la pate et systeme d'eau de circulation - Google Patents

Procede dans un traitement de papier ou de pate pour le controle de l'etat chimique de la pate et systeme d'eau de circulation Download PDF

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Publication number
CA2456538C
CA2456538C CA2456538A CA2456538A CA2456538C CA 2456538 C CA2456538 C CA 2456538C CA 2456538 A CA2456538 A CA 2456538A CA 2456538 A CA2456538 A CA 2456538A CA 2456538 C CA2456538 C CA 2456538C
Authority
CA
Canada
Prior art keywords
pulp
raw
reject
tmp
process water
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.)
Expired - Fee Related
Application number
CA2456538A
Other languages
English (en)
Other versions
CA2456538A1 (fr
Inventor
Sakari Laitinen-Vellonen
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.)
Liqum Paper Oy
Original Assignee
Liqum Paper 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
Priority claimed from FI20015022A external-priority patent/FI20015022A0/fi
Application filed by Liqum Paper Oy filed Critical Liqum Paper Oy
Publication of CA2456538A1 publication Critical patent/CA2456538A1/fr
Application granted granted Critical
Publication of CA2456538C publication Critical patent/CA2456538C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G9/00—Other accessories for paper-making machines
    • D21G9/0009—Paper-making control systems
    • D21G9/0018—Paper-making control systems controlling the stock preparation
    • 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
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/1026—Other features in bleaching processes
    • D21C9/1052—Controlling the process
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/66—Pulp catching, de-watering, or recovering; Re-use of pulp-water
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
    • D21H23/78—Controlling or regulating not limited to any particular process or apparatus
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
    • D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
    • D21H23/04—Addition to the pulp; After-treatment of added substances in the pulp
    • D21H23/06—Controlling the addition
    • D21H23/08—Controlling the addition by measuring pulp properties, e.g. zeta potential, pH

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Abstract

La présente invention a trait à un procédé dans un traitement de papier ou de pâte pour le contrôle de l'état chimique de la pâte et un système d'eau de circulation (10). Dans ledit traitement un ou plusieurs constituants de matière première (EAU DE FABRICATION, PATE THERMOMECANIQUE, PATE, DECHETS) dilués dans un liquide, des charges éventuelles, et un ou des additifs sont mélangés pour constituer la suspension de la pâte. Dans le procédé, on effectue l'ajustement de l'état électrochimique d'au moins un constituant de matière première (EAU DE FABRICATION, PATE THERMOMECANIQUE, PATE, DECHETS) et /ou la suspension de la pâte sans que l'ajustement n'affecte les valeurs de pH des constituants de matière première (EAU DE FABRICATION, PATE THERMOMECANIQUE, PATE, DECHETS) et/ou de la pâte.
CA2456538A 2001-08-21 2002-08-21 Procede dans un traitement de papier ou de pate pour le controle de l'etat chimique de la pate et systeme d'eau de circulation Expired - Fee Related CA2456538C (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
FI20015022A FI20015022A0 (fi) 2001-08-21 2001-08-21 Menetelmä paperin- tai kartonginvalmistuksessa
FI20015022 2001-08-21
FI20025023A FI20025023A (fi) 2001-08-21 2002-05-17 Menetelmä paperi- tai selluprosessissa massa- ja kiertovesijärjestelmän kemiallisen tilan hallitsemiseksi
FI20025023 2002-05-17
PCT/FI2002/000684 WO2003018908A1 (fr) 2001-08-21 2002-08-21 Procede dans un traitement de papier ou de pate pour le controle de l'etat chimique de la pate et systeme d'eau de circulation

Publications (2)

Publication Number Publication Date
CA2456538A1 CA2456538A1 (fr) 2003-03-06
CA2456538C true CA2456538C (fr) 2010-04-27

Family

ID=26161249

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2456538A Expired - Fee Related CA2456538C (fr) 2001-08-21 2002-08-21 Procede dans un traitement de papier ou de pate pour le controle de l'etat chimique de la pate et systeme d'eau de circulation

Country Status (7)

Country Link
US (1) US20040238140A1 (fr)
EP (1) EP1430178B1 (fr)
AT (1) ATE357556T1 (fr)
CA (1) CA2456538C (fr)
DE (1) DE60219046T2 (fr)
FI (1) FI20025023A (fr)
WO (1) WO2003018908A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI20051096A (fi) * 2005-10-31 2007-05-01 Savcor Process Oy Menetelmä paperikoneen, kartonkikoneen tai muun vastaavan rainanmuodostuskoneen märässä päässä
FI123392B (fi) * 2008-02-22 2013-03-28 Upm Kymmene Oyj Menetelmä kalsiumkarbonaatin saostamiseksi kuiturainaprosessin yhteydessä ja kuiturainakoneen lähestymisjärjestelmä
WO2011149797A1 (fr) * 2010-05-22 2011-12-01 Eltron Research & Development Inc. Déshydratation du papier
DE102010041052A1 (de) * 2010-09-20 2012-03-22 Voith Patent Gmbh Verfahren zum Regeln der Formation einer Faserstoffbahn
DE102011083709A1 (de) * 2011-09-29 2013-04-04 Voith Patent Gmbh Betriebsverfahren für eine Stoffaufbereitung
EP3508635A4 (fr) * 2016-08-31 2020-05-20 Seiko Epson Corporation Dispositif de fabrication de feuille, et procédé de commande de dispositif de fabrication de feuille
JP7211022B2 (ja) * 2018-11-07 2023-01-24 セイコーエプソン株式会社 ウェブ製造装置およびシート製造装置
US20220026343A1 (en) * 2018-11-27 2022-01-27 Kemira Oyj Method for estimating the vapor phase corrosion load

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3876497A (en) * 1971-11-23 1975-04-08 Sterling Drug Inc Paper mill waste sludge oxidation and product recovery
DE2746179A1 (de) * 1977-10-14 1979-04-19 Bayer Ag Verfahren zur messung des ladungszustandes von suspensionen und zur steuerung der zugabe von hilfsmitteln zu suspensionen
SE442414B (sv) * 1981-09-22 1985-12-23 Holmens Bruk Ab Sett att minska eller inhibera morkfergningen av massa eller papper i bakvattensystem
EP0079726B2 (fr) * 1981-11-09 1996-10-30 The Wiggins Teape Group Limited Appareil pour déterminer une caractéristique électrique d'une dispersion fibreuse
US4752356A (en) * 1985-10-18 1988-06-21 Miami University Papermaking process
US6072309A (en) * 1996-12-13 2000-06-06 Honeywell-Measurex Corporation, Inc. Paper stock zeta potential measurement and control
US5936151A (en) * 1997-12-22 1999-08-10 International Paper Company Method and apparatus for measuring an electrical property of papermaking furnish
US6176974B1 (en) * 1997-12-22 2001-01-23 International Paper Company Method for determining electrokinetic properties of papermaking furnish
US6086716A (en) * 1998-05-11 2000-07-11 Honeywell-Measurex Corporation Wet end control for papermaking machine
FI113089B (fi) * 1999-10-06 2004-02-27 Liqum Oy Menetelmä paperinvalmistusprosessin analysoimiseksi ja sähkökemiallinen anturi nesteen analysoimiseksi
CA2404968C (fr) * 2000-04-05 2011-08-30 Liqum Oy Procede et systeme de surveillance et d'analyse de procede de fabrication de papier
US7056419B2 (en) * 2002-09-30 2006-06-06 American Air Liquide, Inc. Methods for modifying electrical properties of papermaking compositions using carbon dioxide
FI20021901A0 (fi) * 2002-10-24 2002-10-24 Liqum Oy Menetelmä prosessin valvomiseksi

Also Published As

Publication number Publication date
US20040238140A1 (en) 2004-12-02
DE60219046T2 (de) 2007-12-13
EP1430178B1 (fr) 2007-03-21
FI20025023A0 (fi) 2002-05-17
ATE357556T1 (de) 2007-04-15
WO2003018908A1 (fr) 2003-03-06
DE60219046D1 (de) 2007-05-03
FI20025023A (fi) 2003-02-22
EP1430178A1 (fr) 2004-06-23
CA2456538A1 (fr) 2003-03-06

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Effective date: 20130821