WO2012000690A3 - Sheet-forming system for a machine for producing an at least single-layer fibrous material web - Google Patents
Sheet-forming system for a machine for producing an at least single-layer fibrous material web Download PDFInfo
- Publication number
- WO2012000690A3 WO2012000690A3 PCT/EP2011/054324 EP2011054324W WO2012000690A3 WO 2012000690 A3 WO2012000690 A3 WO 2012000690A3 EP 2011054324 W EP2011054324 W EP 2011054324W WO 2012000690 A3 WO2012000690 A3 WO 2012000690A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- wire
- foils
- fibrous material
- zone
- sheet
- Prior art date
Links
- 239000002657 fibrous material Substances 0.000 title abstract 5
- 239000002356 single layer Substances 0.000 title abstract 4
- 239000011888 foil Substances 0.000 abstract 5
- 239000000725 suspension Substances 0.000 abstract 3
- 238000004806 packaging method and process Methods 0.000 abstract 1
Classifications
-
- 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
-
- 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
- D21F1/483—Drainage foils and bars
Landscapes
- Paper (AREA)
Abstract
The invention relates to a sheet-forming system (1) for a machine (2) for producing an at least single-layer fibrous material web (3), in particular a paper, cardboard or packaging paper web, from at least one fibrous material suspension (4; 4.1, 4.2). The system comprises at least one single-layer headbox (5) and a twin wire former (6), which comprises two endless wires (7, 8), each revolving in a wire loop (7.1, 8.1). The first wire is a Fourdrinier wire (7), which, in a pre-dewatering section (9) downstream [or in the region] of the application of the at least one fibrous material suspension (4; 4.1, 4.2) in the form of a free fibrous material suspension jet (4.S) by means of the at least single-layer headbox (5), is guided over a wire table (10) that is stationary and preferably under suction, the surface (11) of which touching the Fourdrinier wire (7) is formed by a covering (12) having a plurality of foils (13) which are arranged in succession in the wire running direction (S) and extend in the transverse machine direction (CD) and have interposed free dewatering openings (14), and over a plurality of suction elements (15), in particular suction boxes (15.1). The second wire is a top wire (8), and the two wires (7, 8) together form, at least in sections, a twin wire zone (16) having a wedge-shaped infeed nip (17). In the twin wire zone (16), the top wire (8) guided over an infeed roller (18) runs over a plurality of rigidly arranged foils (19), which are arranged spaced with respect to each other at a dewatering box (20). The sheet-forming system (1) according to the invention is characterised in that the covering (12) of the stationary wire table (10) that is preferably under suction comprises at least two zones (10.Z1, 10.Z2), each having a plurality of foils (13), wherein the foils (13) arranged in the first zone (10.Z1) are arranged with an average spacing (10.Z1.TD) in the range between 20 and 70 mm, preferably between 20 and 40 mm, more particularly between 20 and 35 mm, and the foils (13) arranged in the second zone (10.Z2) are arranged with an average spacing (10.Z2.TD) in the range between 50 and 120 mm, preferably between 50 and 100 mm, more particularly between 50 and 80 mm.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102010030707.6 | 2010-06-30 | ||
| DE201010030707 DE102010030707A1 (en) | 2010-06-30 | 2010-06-30 | Sheet forming system for a machine for producing an at least single-layer fibrous web |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2012000690A2 WO2012000690A2 (en) | 2012-01-05 |
| WO2012000690A3 true WO2012000690A3 (en) | 2012-03-01 |
Family
ID=44625539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2011/054324 WO2012000690A2 (en) | 2010-06-30 | 2011-03-22 | Sheet-forming system for a machine for producing an at least single-layer fibrous material web |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE102010030707A1 (en) |
| WO (1) | WO2012000690A2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010041332A1 (en) | 2010-09-24 | 2012-01-19 | Voith Patent Gmbh | Sheet formation system for machine for production of e.g. paper, has head box positionable for varying beam incidence angle and/or beam incidence line under maintenance of unchanged geometry of head box nozzle |
| WO2015185295A1 (en) | 2014-06-06 | 2015-12-10 | Voith Patent Gmbh | Device for producing a fibrous web |
| DE102014210883A1 (en) | 2014-06-06 | 2015-06-11 | Voith Patent Gmbh | Device for producing a fibrous web |
| FI127630B (en) * | 2014-12-17 | 2018-10-31 | Valmet Technologies Inc | Molding portion of a fiber web machine and secondary forming unit for a multilayer molding portion of a fiber web machine |
| DE102018113833A1 (en) | 2018-06-11 | 2019-12-12 | Voith Patent Gmbh | Grooved roller and device comprising the same |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004018768A1 (en) * | 2002-08-23 | 2004-03-04 | Metso Paper, Inc. | Forming of a paper or board web in a twin-wire former or in a twin-wire section of a former |
| WO2008152192A1 (en) * | 2007-06-12 | 2008-12-18 | Metso Paper, Inc. | A dewatering element for a web forming machine, a method for forming a dewatering element used in a web forming machine and a surface part for a dewatering element in a web forming machine |
| EP2199459A1 (en) * | 2008-12-16 | 2010-06-23 | Voith Patent GmbH | Sheet composition system for a machine for producing a multiple layer sheet of fibrous material |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19538149A1 (en) | 1995-10-13 | 1997-04-17 | Voith Sulzer Papiermasch Gmbh | Head box and process for making a multi-layer web of paper or board |
| DE102009027432A1 (en) | 2009-07-02 | 2011-01-05 | Voith Patent Gmbh | Forming unit and method for producing a material web |
-
2010
- 2010-06-30 DE DE201010030707 patent/DE102010030707A1/en not_active Withdrawn
-
2011
- 2011-03-22 WO PCT/EP2011/054324 patent/WO2012000690A2/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004018768A1 (en) * | 2002-08-23 | 2004-03-04 | Metso Paper, Inc. | Forming of a paper or board web in a twin-wire former or in a twin-wire section of a former |
| WO2008152192A1 (en) * | 2007-06-12 | 2008-12-18 | Metso Paper, Inc. | A dewatering element for a web forming machine, a method for forming a dewatering element used in a web forming machine and a surface part for a dewatering element in a web forming machine |
| EP2199459A1 (en) * | 2008-12-16 | 2010-06-23 | Voith Patent GmbH | Sheet composition system for a machine for producing a multiple layer sheet of fibrous material |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2012000690A2 (en) | 2012-01-05 |
| DE102010030707A1 (en) | 2012-01-05 |
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