FI20010830A - Method and process arrangement in a short machine cycle - Google Patents
Method and process arrangement in a short machine cycle Download PDFInfo
- Publication number
- FI20010830A FI20010830A FI20010830A FI20010830A FI20010830A FI 20010830 A FI20010830 A FI 20010830A FI 20010830 A FI20010830 A FI 20010830A FI 20010830 A FI20010830 A FI 20010830A FI 20010830 A FI20010830 A FI 20010830A
- Authority
- FI
- Finland
- Prior art keywords
- fan pump
- pipeline
- dilution
- flow
- stock
- Prior art date
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.
Priority Applications (7)
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 |
DE60214546T DE60214546T2 (en) | 2001-04-23 | 2002-04-12 | METHOD AND PROCESS ARRANGEMENT IN THE SHORT CIRCUIT OF A PAPER MACHINE |
AT02714251T ATE338845T1 (en) | 2001-04-23 | 2002-04-12 | METHOD AND PROCESS ARRANGEMENT IN THE SHORT CIRCUIT OF A PAPER MACHINE |
EP02714251A EP1399621B1 (en) | 2001-04-23 | 2002-04-12 | Method and process arrangement for the short circulation in a paper machine |
US10/475,504 US20040144513A1 (en) | 2001-04-23 | 2002-04-12 | Method and process arrangement in the short circulation of a paper machine |
CNB028086716A CN1243880C (en) | 2001-04-23 | 2002-04-12 | Method and process arrangement in the short circulation of a paper machine |
PCT/FI2002/000311 WO2002086233A1 (en) | 2001-04-23 | 2002-04-12 | Method and process arrangement in the short circulation of a paper machine |
Applications Claiming Priority (2)
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 |
Publications (3)
Publication Number | Publication Date |
---|---|
FI20010830A0 FI20010830A0 (en) | 2001-04-23 |
FI20010830A true FI20010830A (en) | 2002-10-24 |
FI111391B FI111391B (en) | 2003-07-15 |
Family
ID=8561032
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI20010830A FI111391B (en) | 2001-04-23 | 2001-04-23 | Process and process arrangement in the short circulation 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)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
FI103676B (en) * | 1998-06-10 | 1999-08-13 | Metso Paper Inc | Short-circuiting process arrangement for a paper or board machine |
EP0969142B1 (en) * | 1998-06-29 | 2004-03-24 | Voith Paper Patent GmbH | Process and device for mixing stock suspensions |
-
2001
- 2001-04-23 FI FI20010830A patent/FI111391B/en active
-
2002
- 2002-04-12 CN CNB028086716A patent/CN1243880C/en not_active Expired - Fee Related
- 2002-04-12 WO PCT/FI2002/000311 patent/WO2002086233A1/en active IP Right Grant
- 2002-04-12 AT AT02714251T patent/ATE338845T1/en not_active IP Right Cessation
- 2002-04-12 EP EP02714251A patent/EP1399621B1/en not_active Expired - Lifetime
- 2002-04-12 US US10/475,504 patent/US20040144513A1/en not_active Abandoned
- 2002-04-12 DE DE60214546T patent/DE60214546T2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE60214546T2 (en) | 2007-08-30 |
FI111391B (en) | 2003-07-15 |
EP1399621A1 (en) | 2004-03-24 |
CN1243880C (en) | 2006-03-01 |
FI20010830A0 (en) | 2001-04-23 |
ATE338845T1 (en) | 2006-09-15 |
EP1399621B1 (en) | 2006-09-06 |
DE60214546D1 (en) | 2006-10-19 |
US20040144513A1 (en) | 2004-07-29 |
CN1503865A (en) | 2004-06-09 |
WO2002086233A1 (en) | 2002-10-31 |
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