DE60214546D1 - METHOD AND PROCESS ARRANGEMENT IN THE SHORT CIRCUIT OF A PAPER MACHINE - Google Patents

METHOD AND PROCESS ARRANGEMENT IN THE SHORT CIRCUIT OF A PAPER MACHINE

Info

Publication number
DE60214546D1
DE60214546D1 DE60214546T DE60214546T DE60214546D1 DE 60214546 D1 DE60214546 D1 DE 60214546D1 DE 60214546 T DE60214546 T DE 60214546T DE 60214546 T DE60214546 T DE 60214546T DE 60214546 D1 DE60214546 D1 DE 60214546D1
Authority
DE
Germany
Prior art keywords
fan pump
pipeline
paper machine
dilution
flow
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
DE60214546T
Other languages
German (de)
Other versions
DE60214546T2 (en
Inventor
Matti Hietaniemi
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.)
Metso Paper Oy
Original Assignee
Metso 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
Application filed by Metso Paper Oy filed Critical Metso Paper Oy
Application granted granted Critical
Publication of DE60214546D1 publication Critical patent/DE60214546D1/en
Publication of DE60214546T2 publication Critical patent/DE60214546T2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Paper (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)

Abstract

A process arrangement in the short circulation of a paper machine comprises devices (10-13) for dilution of thick stock, centrifugal cleaners (14), and a headbox fan pump (16), as well as a pipe system connecting these. There is a direct flow connection from the centrifugal cleaners (14) along a pipeline (30) to the headbox fan pump (16), through which pipeline (30) a centrifugally cleaned stock flow (F6) is passed direct to the headbox fan pump (16) without any deaeration or dilution stages in between. A secondary line (32) is connected to the pipeline (30) for passing through it part of the centrifugally cleaned stock flow as a return flow (F7) back to the thick stock dilution devices (10-13). By this arrangement it can be ensured that the pressure on the suction side of the fan pump (16) remains substantially constant.
DE60214546T 2001-04-23 2002-04-12 METHOD AND PROCESS ARRANGEMENT IN THE SHORT CIRCUIT OF A PAPER MACHINE Expired - Fee Related DE60214546T2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FI20010830A FI111391B (en) 2001-04-23 2001-04-23 Process and process arrangement in the short circulation of a paper machine
FI20010830 2001-04-23
PCT/FI2002/000311 WO2002086233A1 (en) 2001-04-23 2002-04-12 Method and process arrangement in the short circulation of a paper machine

Publications (2)

Publication Number Publication Date
DE60214546D1 true DE60214546D1 (en) 2006-10-19
DE60214546T2 DE60214546T2 (en) 2007-08-30

Family

ID=8561032

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60214546T Expired - Fee Related DE60214546T2 (en) 2001-04-23 2002-04-12 METHOD AND PROCESS ARRANGEMENT IN THE SHORT CIRCUIT OF A PAPER MACHINE

Country Status (7)

Country Link
US (1) US20040144513A1 (en)
EP (1) EP1399621B1 (en)
CN (1) CN1243880C (en)
AT (1) ATE338845T1 (en)
DE (1) DE60214546T2 (en)
FI (1) FI111391B (en)
WO (1) WO2002086233A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI113971B (en) * 2003-02-11 2004-07-15 Metso Paper Inc Stock treatment apparatus for treatment of stock passed to headbox of paper machine, comprises accept line of hydrocyclone plant and connected with stock line of stock fed from second stock chest
FI115234B (en) * 2003-09-24 2005-03-31 Metso Paper Inc A process for making a laminated paper or board web
DE102004054236B4 (en) * 2004-11-10 2007-06-06 Voith Patent Gmbh Method for mixing suspensions of different compositions
FI123392B (en) * 2008-02-22 2013-03-28 Upm Kymmene Oyj Method for Precipitation of Calcium Carbonate in a Fibrous Web Process and Fiber Machine Machine Approach
DE102010038694A1 (en) * 2010-07-30 2012-02-02 Voith Patent Gmbh constant part

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI103676B (en) * 1998-06-10 1999-08-13 Metso Paper Inc Short-circuiting process arrangement for a paper or board machine
FI103677B (en) * 1998-06-10 1999-08-13 Valmet Corp Procedure for regulating the surface and texture of a dosing container for a partial mass
US6200417B1 (en) * 1998-06-29 2001-03-13 Voith Sulzer Papiertechnik Patent Gmbh Process and device for mixing stock suspensions

Also Published As

Publication number Publication date
CN1503865A (en) 2004-06-09
FI111391B (en) 2003-07-15
CN1243880C (en) 2006-03-01
DE60214546T2 (en) 2007-08-30
WO2002086233A1 (en) 2002-10-31
ATE338845T1 (en) 2006-09-15
FI20010830A0 (en) 2001-04-23
EP1399621A1 (en) 2004-03-24
FI20010830A (en) 2002-10-24
US20040144513A1 (en) 2004-07-29
EP1399621B1 (en) 2006-09-06

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee