CA2278647A1 - Method and apparatus for control of a headbox in a paper machine - Google Patents
Method and apparatus for control of a headbox in a paper machine Download PDFInfo
- Publication number
- CA2278647A1 CA2278647A1 CA002278647A CA2278647A CA2278647A1 CA 2278647 A1 CA2278647 A1 CA 2278647A1 CA 002278647 A CA002278647 A CA 002278647A CA 2278647 A CA2278647 A CA 2278647A CA 2278647 A1 CA2278647 A1 CA 2278647A1
- Authority
- CA
- Canada
- Prior art keywords
- feed
- headbox
- headboxes
- profiles
- property
- 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.)
- Granted
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
- D21G9/0027—Paper-making control systems controlling the forming section
-
- 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
- D21F1/02—Head boxes of Fourdrinier machines
-
- 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
- D21F1/08—Regulating consistency
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F7/00—Other details of machines for making continuous webs of paper
- D21F7/06—Indicating or regulating the thickness of the layer; Signal devices
Abstract
A method of controlling cross-direction property profiles of a paper web employs a control system for regulating a headbox or headboxes of a paper machine. Said property profile or profiles is/are measured by a measurement system. The measurement signal thus obtained is supplied to said control system. The headbox or headboxes is/are supplied with at least two feed streams which contain feedstuffs for the paper suspended in aqueous solution. The feed streams are divided into feed zones in cross-machine sections of the headbox or headboxes. Said feed zones are each supplied with combinatory streams of said feed streams. A property, such as, concentration and/or consistency and/or brightness and/or color and/or equivalent, of one or more feedstuffs of said feed streams is measured. The thus obtained measurement signal is fed to said control system. Based on said measurements of the property profile or profiles and based on said measurements of said property and based on setpoint values, control signals are formed. By means of them, an actuator or an actuator combination situated at each of said feed zones of the headbox or headboxes is regulated, by which actuator or actuator combination combinatory proportions of different feed streams supplied to the feed zone are affected to achieve a desired property profile or profiles of the web.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI970294A FI100345B (en) | 1997-01-24 | 1997-01-24 | Method and apparatus for paper machine headbox adjustment |
FI970294 | 1997-01-24 | ||
PCT/FI1998/000032 WO1998032916A1 (en) | 1997-01-24 | 1998-01-16 | Method and apparatus for control of a headbox in a paper machine |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2278647A1 true CA2278647A1 (en) | 1998-07-30 |
CA2278647C CA2278647C (en) | 2007-11-20 |
Family
ID=8547797
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002278647A Expired - Fee Related CA2278647C (en) | 1997-01-24 | 1998-01-16 | Method and apparatus for control of a headbox in a paper machine |
Country Status (10)
Country | Link |
---|---|
EP (1) | EP0970277B1 (en) |
JP (1) | JP2001508839A (en) |
CN (1) | CN1093201C (en) |
AT (1) | ATE252179T1 (en) |
AU (1) | AU5665198A (en) |
BR (1) | BR9807110A (en) |
CA (1) | CA2278647C (en) |
DE (1) | DE69818982T2 (en) |
FI (1) | FI100345B (en) |
WO (1) | WO1998032916A1 (en) |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19843727A1 (en) * | 1998-09-24 | 2000-03-30 | Voith Sulzer Papiertech Patent | Process and headbox system to improve the consistency cross profile of a fiber web |
FI112961B (en) * | 1998-11-26 | 2004-02-13 | Metso Paper Inc | Method and apparatus for measuring retention profile and controlling retention in a paper machine / cardboard machine |
FI115647B (en) * | 1998-12-23 | 2005-06-15 | Metso Paper Inc | Method of controlling an inlet box in a paper machine / board machine and a construction of an inlet box in a paper machine / board machine |
DE19906062A1 (en) * | 1999-02-12 | 2000-08-17 | Voith Sulzer Papiertech Patent | Method and device for producing a material web |
US6294051B1 (en) | 1999-04-13 | 2001-09-25 | Kimberly-Clark Worldwide, Inc. | Method for improving the edge strength of a fibrous mat |
FI991108A (en) | 1999-05-14 | 2000-11-15 | Valmet Corp | Method and apparatus for the manufacture of calendered paper or calendered paperboard |
FI114224B (en) * | 2000-03-02 | 2004-09-15 | Metso Paper Inc | A method and an arrangement for adjusting the consistency of an input pulp mixture on a headbox of a papermaking machine |
JP4913510B2 (en) * | 2006-09-05 | 2012-04-11 | 横河電機株式会社 | Simulation method, fiber orientation control method, and fiber orientation control device |
DE102007049775B3 (en) * | 2007-10-17 | 2009-02-26 | Siemens Ag | Control device and method for basis weight control and paper machine equipped therewith |
DE102007056499B4 (en) * | 2007-11-22 | 2012-03-01 | Norske Skog Walsum Gmbh | Method and device for demolition detection on paper-making and processing machines |
DE102008000778A1 (en) * | 2008-03-20 | 2009-09-24 | Voith Patent Gmbh | Headbox for a paper or board machine |
FI121888B (en) | 2008-08-12 | 2011-05-31 | Metso Paper Inc | Procedure for optimizing the fiber web properties |
FI126614B (en) * | 2009-04-07 | 2017-03-15 | Valmet Automation Oy | Modeling the property of paper, cardboard or cardboard |
FI122113B (en) | 2010-02-03 | 2011-08-31 | Metso Paper Inc | A method and a headbox for improving the transverse property profile of a fibrous web |
US8728276B2 (en) * | 2010-05-20 | 2014-05-20 | Honeywell International Inc. | Apparatus and method for controlling curling potential of paper, paperboard, or other product during manufacture |
EP2784214B1 (en) * | 2013-03-28 | 2015-09-16 | Valmet Technologies, Inc. | Feed water supply for a multi-layer headbox |
EP3190213B1 (en) * | 2014-09-05 | 2021-06-30 | Seiko Epson Corporation | Sheet manufacturing device and sheet manufacturing method |
CN104480769B (en) * | 2014-11-04 | 2016-08-24 | 陕西科技大学 | A kind of dilution water waterpower type flow box dilution water control valve device and control method |
EP3088604B1 (en) * | 2015-04-28 | 2020-03-25 | Valmet Technologies Oy | Method and system for the optimization of properties of a multilayer fiber web in fiber web manufacture |
JP6481238B2 (en) * | 2015-07-02 | 2019-03-13 | デュプロ精工株式会社 | Paper machine |
SE540916C2 (en) * | 2016-09-15 | 2018-12-18 | Valmet Oy | An apparatus for washing and dewatering pulp, a system for controlling such an apparatus, and a method for processing pulp in such an apparatus |
CN110622079B (en) * | 2017-03-06 | 2022-09-02 | 霍尼韦尔有限公司 | Method and apparatus for designing model-based control with spatial robustness for a multi-array cross-direction (CD) web manufacturing or processing system or other system |
CN109358585B (en) * | 2018-10-30 | 2020-06-19 | 上海交通大学 | Global optimization control method for cascade headbox paper machine |
DE102021124326A1 (en) | 2021-09-21 | 2022-10-06 | Voith Patent Gmbh | Method and device for producing a fibrous web |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI85731C (en) * | 1989-06-01 | 1997-08-20 | Valmet Paper Machinery Inc | Reglersystem i en pappers- eller kartonmaskin |
FI81848C (en) * | 1989-07-17 | 1990-12-10 | Valmet Paper Machinery Inc | Method for controlling and on-line measurement of the fiber orientation of a web produced on a paper machine |
FI92229C (en) * | 1993-07-01 | 1994-10-10 | Valmet Paper Machinery Inc | Method and device for headbox adjustment |
US5771174A (en) * | 1995-12-21 | 1998-06-23 | Measurex Corporation | Distributed intelligence actuator controller with peer-to-peer actuator communication |
-
1997
- 1997-01-24 FI FI970294A patent/FI100345B/en not_active IP Right Cessation
-
1998
- 1998-01-16 JP JP53163198A patent/JP2001508839A/en active Pending
- 1998-01-16 CA CA002278647A patent/CA2278647C/en not_active Expired - Fee Related
- 1998-01-16 DE DE69818982T patent/DE69818982T2/en not_active Expired - Lifetime
- 1998-01-16 AU AU56651/98A patent/AU5665198A/en not_active Abandoned
- 1998-01-16 BR BR9807110-6A patent/BR9807110A/en not_active IP Right Cessation
- 1998-01-16 WO PCT/FI1998/000032 patent/WO1998032916A1/en active IP Right Grant
- 1998-01-16 EP EP98900864A patent/EP0970277B1/en not_active Expired - Lifetime
- 1998-01-16 CN CN98802027A patent/CN1093201C/en not_active Expired - Fee Related
- 1998-01-16 AT AT98900864T patent/ATE252179T1/en active
Also Published As
Publication number | Publication date |
---|---|
EP0970277B1 (en) | 2003-10-15 |
EP0970277A1 (en) | 2000-01-12 |
CA2278647C (en) | 2007-11-20 |
WO1998032916A1 (en) | 1998-07-30 |
JP2001508839A (en) | 2001-07-03 |
DE69818982T2 (en) | 2004-08-12 |
AU5665198A (en) | 1998-08-18 |
DE69818982D1 (en) | 2003-11-20 |
BR9807110A (en) | 2000-04-25 |
ATE252179T1 (en) | 2003-11-15 |
CN1093201C (en) | 2002-10-23 |
FI970294A0 (en) | 1997-01-24 |
FI100345B (en) | 1997-11-14 |
CN1244225A (en) | 2000-02-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |
Effective date: 20140116 |