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EP1136620A3 - Twin-wire former - Google Patents

Twin-wire former Download PDF

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Publication number
EP1136620A3
EP1136620A3 EP01100939A EP01100939A EP1136620A3 EP 1136620 A3 EP1136620 A3 EP 1136620A3 EP 01100939 A EP01100939 A EP 01100939A EP 01100939 A EP01100939 A EP 01100939A EP 1136620 A3 EP1136620 A3 EP 1136620A3
Authority
EP
European Patent Office
Prior art keywords
twin
inlet gap
wire former
headbox
consistency
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
Application number
EP01100939A
Other languages
German (de)
French (fr)
Other versions
EP1136620A2 (en
EP1136620B1 (en
Inventor
Alfred Bubik
Joachim Henssler
Jürgen Prössl
Mathias Schwaner
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.)
Voith Patent GmbH
Original Assignee
Voith Paper Patent GmbH
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 Voith Paper Patent GmbH filed Critical Voith Paper Patent GmbH
Publication of EP1136620A2 publication Critical patent/EP1136620A2/en
Publication of EP1136620A3 publication Critical patent/EP1136620A3/en
Application granted granted Critical
Publication of EP1136620B1 publication Critical patent/EP1136620B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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

Landscapes

  • Paper (AREA)

Abstract

Ein Doppelsiebformer (10) einer Maschine zur Herstellung einer Faserstoffbahn (12), insbesondere Papier- oder Kartonbahn, umfaßt zwei umlaufende endlose Siebe (14,16), die unter Bildung eines Stoffeinlaufspaltes (18) im Bereich eines mitbewegten Entwässerungselementes (20) zusammenlaufen, sowie einen Stoffauflauf (24), über den die Faserstoffsuspension in den Stoffeinlaufspalt (18) eingebracht wird. Die Stoffdichte C der Faserstoffsuspension im Stoffauflauf sowie das Flächengewicht F der in den Stoffeinlaufspalt eingebrachten Faserstoffsuspension sind so gewählt, daß F / (C*1000) > 0,025 ist, wobei das Flächengewicht F in g/m2 und die Stoffdichte in g/l angegeben ist.

Figure 00000001
A twin-wire former (10) of a machine for producing a fibrous web (12), in particular paper or cardboard web, comprises two continuous endless screens (14, 16) which converge to form a material inlet gap (18) in the area of a moving dewatering element (20), and a headbox (24) via which the fiber suspension is introduced into the stock inlet gap (18). The consistency C of the fibrous suspension in the headbox and the basis weight F of the fibrous suspension introduced into the stock inlet gap are chosen such that F / (C * 1000)> 0.025 is, the basis weight F is given in g / m 2 and the consistency in g / l.
Figure 00000001
EP01100939A 2000-03-14 2001-01-17 Twin-wire former Expired - Lifetime EP1136620B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10012342A DE10012342A1 (en) 2000-03-14 2000-03-14 Twin wire former
DE10012342 2000-03-14

Publications (3)

Publication Number Publication Date
EP1136620A2 EP1136620A2 (en) 2001-09-26
EP1136620A3 true EP1136620A3 (en) 2002-01-02
EP1136620B1 EP1136620B1 (en) 2004-10-06

Family

ID=7634645

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01100939A Expired - Lifetime EP1136620B1 (en) 2000-03-14 2001-01-17 Twin-wire former

Country Status (3)

Country Link
US (1) US6521091B2 (en)
EP (1) EP1136620B1 (en)
DE (2) DE10012342A1 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0335821A2 (en) * 1988-03-30 1989-10-04 Beloit Corporation An apparatus for forming a web

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US203A (en) * 1837-05-22 Improvement in fire-arms and ordnance
US162A (en) * 1837-04-17 Island
FR1546480A (en) * 1967-02-28 1968-11-22 Papeteries Navarre Improvements in the fabrication of particulate fibrous structures
AT328283B (en) * 1970-11-16 1976-03-10 Arledter Hanns F Dr Ing METHOD AND EQUIPMENT FOR MANUFACTURING FIBER WEBS WITH SPATIAL ORIENTED FIBERS
SE410482B (en) * 1978-02-15 1979-10-15 Karlstad Mekaniska Ab PROCEDURE AND DEVICE FOR A DOUBLE WIRE FORMER
FI93032C (en) * 1991-03-15 1995-02-10 Valmet Paper Machinery Inc Two-wire web forming section of a paper machine
FI93873C (en) * 1992-12-08 1995-06-12 Valmet Paper Machinery Inc Method and apparatus associated with the forming gap in the web forming part of a paper machine
DE4443874C2 (en) * 1994-12-09 1996-10-31 Voith Sulzer Papiermasch Gmbh Twin-wire gap former for paper production
US5593545A (en) * 1995-02-06 1997-01-14 Kimberly-Clark Corporation Method for making uncreped throughdried tissue products without an open draw
US5798024A (en) * 1996-06-11 1998-08-25 Valmet Corporation Controlling web anistropy in a roll and blade twin-wire gap former

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0335821A2 (en) * 1988-03-30 1989-10-04 Beloit Corporation An apparatus for forming a web

Also Published As

Publication number Publication date
DE50103934D1 (en) 2004-11-11
DE10012342A1 (en) 2001-09-20
US6521091B2 (en) 2003-02-18
EP1136620A2 (en) 2001-09-26
US20020096297A1 (en) 2002-07-25
EP1136620B1 (en) 2004-10-06

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