CA2351490A1 - Method and device for pulp web formation - Google Patents
Method and device for pulp web formation Download PDFInfo
- Publication number
- CA2351490A1 CA2351490A1 CA002351490A CA2351490A CA2351490A1 CA 2351490 A1 CA2351490 A1 CA 2351490A1 CA 002351490 A CA002351490 A CA 002351490A CA 2351490 A CA2351490 A CA 2351490A CA 2351490 A1 CA2351490 A1 CA 2351490A1
- Authority
- CA
- Canada
- Prior art keywords
- pulp
- wires
- value
- method comprises
- space
- 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
- 238000000034 method Methods 0.000 title abstract 6
- 230000015572 biosynthetic process Effects 0.000 title abstract 2
- 230000006835 compression Effects 0.000 abstract 2
- 238000007906 compression Methods 0.000 abstract 2
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
- D21F1/02—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
- D21F1/48—Suction apparatus
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F9/00—Complete machines for making continuous webs of paper
- D21F9/003—Complete machines for making continuous webs of paper of the twin-wire type
Landscapes
- Paper (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
Abstract
The invention relates to a method and an apparatus for pulp web formation. The method comprises feeding pulp, having a dry content of about 1,5 %, from a headbox (2) into a wedge-shaped converging space (5) defined by two wires (3, 4) or the like, said wires or the like being supported on chamber units (6, 7), including at a given time at least one water-receiving chamber (8), having its pressure adjustable in such a way that the pulp can be maintained at an overpressure in the space (5). The method comprises increasing the dry content of the pulp in the converging space (5) to a value which is at least about % to about 12 %. According to the invention, the method comprises subjecting the pulp present between the wires (3, 4) or the like in the downstream section of the converging space, or in its substantially immediate vicinity, to a compression in perpendicular direction (z direction). In the method, the compression performed in the vicinity of the converging space (5) or its downstream section is used for increasing the dry content of the pulp to a value which is at least about 18 %, preferably to a value which is about 20 %.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI982539 | 1998-11-24 | ||
FI982539A FI109210B (en) | 1998-11-24 | 1998-11-24 | Method and apparatus for forming a cellulose web |
PCT/FI1999/000967 WO2000031337A1 (en) | 1998-11-24 | 1999-11-24 | Method and device for pulp web formation |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2351490A1 true CA2351490A1 (en) | 2000-06-02 |
CA2351490C CA2351490C (en) | 2007-08-21 |
Family
ID=8552972
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002351490A Expired - Fee Related CA2351490C (en) | 1998-11-24 | 1999-11-24 | Method and device for pulp web formation |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP1153169B1 (en) |
JP (1) | JP4523166B2 (en) |
AT (1) | ATE260360T1 (en) |
AU (1) | AU1562300A (en) |
CA (1) | CA2351490C (en) |
DE (1) | DE69915130T2 (en) |
FI (1) | FI109210B (en) |
WO (1) | WO2000031337A1 (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001036742A2 (en) * | 1999-11-17 | 2001-05-25 | Andritz Ag | Device for removing water from a fibrous material strip |
FI117395B (en) * | 2000-11-16 | 2006-09-29 | Metso Paper Inc | Apparatus and method for removing water from a cellulosic web |
DE60314638T2 (en) | 2003-11-14 | 2008-03-06 | The Procter & Gamble Company, Cincinnati | Polymeric compositions for sustained release of volatile materials |
TR201706056T4 (en) | 2005-12-07 | 2018-03-21 | Procter & Gamble | Polymeric compositions for the sustained release of volatile substances. |
EP2342380A4 (en) * | 2008-05-28 | 2012-04-11 | Metso Paper Inc | Twin wire press and method for dewatering a fibre suspension |
US8236139B1 (en) | 2008-06-30 | 2012-08-07 | International Paper Company | Apparatus for improving basis weight uniformity with deckle wave control |
AT509992B1 (en) | 2010-10-27 | 2012-01-15 | Andritz Ag Maschf | DEVICE AND METHOD FOR DRYING FIBROUS MATERIAL |
JP6245053B2 (en) * | 2014-04-23 | 2017-12-13 | 王子ホールディングス株式会社 | Pulp sheet manufacturing method |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3823062A (en) * | 1972-02-28 | 1974-07-09 | Int Paper Co | Twin-wire papermaking employing stabilized stock flow and water filled seal(drainage)boxes |
AT348325B (en) * | 1977-02-14 | 1979-02-12 | Andritz Ag Maschf | PRESS SECTION FOR DEWATERING MACHINES |
FR2428682A1 (en) * | 1978-06-16 | 1980-01-11 | Stephanois Rech Meca Hydr Cent | Diffusion and adsorption coating of substrates - to form hard hexagonal structure base on which lamellar layer is adsorbed |
JPS57112495A (en) * | 1981-11-06 | 1982-07-13 | Int Paper Co | Papermaking apparatus |
FI85885C (en) * | 1987-11-25 | 1992-06-10 | Tampella Oy Ab | FOERFARANDE FOER FORMERING AV EN FIBERBANA I EN PAPPERSMASKIN SAMT EN ANORDNING FOER UTFOERING AV FOERFARANDET. |
ATE232255T1 (en) * | 1996-04-18 | 2003-02-15 | Metso Paper Inc | METHOD FOR CONTROLLING THE CURRENT CASE AND/OR OVERALL FORM OF A PAPER MACHINE OR THE LIKE |
US5783045A (en) * | 1996-05-06 | 1998-07-21 | Beloit Technologies, Inc. | Pulp and linerboard former with improved dewatering |
-
1998
- 1998-11-24 FI FI982539A patent/FI109210B/en active
-
1999
- 1999-11-24 AT AT99958204T patent/ATE260360T1/en active
- 1999-11-24 DE DE69915130T patent/DE69915130T2/en not_active Expired - Lifetime
- 1999-11-24 AU AU15623/00A patent/AU1562300A/en not_active Abandoned
- 1999-11-24 CA CA002351490A patent/CA2351490C/en not_active Expired - Fee Related
- 1999-11-24 EP EP99958204A patent/EP1153169B1/en not_active Expired - Lifetime
- 1999-11-24 JP JP2000584137A patent/JP4523166B2/en not_active Expired - Fee Related
- 1999-11-24 WO PCT/FI1999/000967 patent/WO2000031337A1/en active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
FI982539A (en) | 2000-05-25 |
CA2351490C (en) | 2007-08-21 |
JP4523166B2 (en) | 2010-08-11 |
DE69915130D1 (en) | 2004-04-01 |
EP1153169A1 (en) | 2001-11-14 |
WO2000031337A1 (en) | 2000-06-02 |
ATE260360T1 (en) | 2004-03-15 |
FI109210B (en) | 2002-06-14 |
EP1153169B1 (en) | 2004-02-25 |
JP2002530547A (en) | 2002-09-17 |
DE69915130T2 (en) | 2004-12-30 |
AU1562300A (en) | 2000-06-13 |
FI982539A0 (en) | 1998-11-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |
Effective date: 20191125 |