DE502005001614D1 - Sheet forming system of a machine for producing a fibrous web - Google Patents

Sheet forming system of a machine for producing a fibrous web

Info

Publication number
DE502005001614D1
DE502005001614D1 DE502005001614T DE502005001614T DE502005001614D1 DE 502005001614 D1 DE502005001614 D1 DE 502005001614D1 DE 502005001614 T DE502005001614 T DE 502005001614T DE 502005001614 T DE502005001614 T DE 502005001614T DE 502005001614 D1 DE502005001614 D1 DE 502005001614D1
Authority
DE
Germany
Prior art keywords
nozzle
producing
machine
fibrous web
forming system
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.)
Active
Application number
DE502005001614T
Other languages
German (de)
Inventor
Wolfgang Ruf
Hans Loser
Volker Schmidt-Rohr
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 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 Patent GmbH filed Critical Voith Patent GmbH
Publication of DE502005001614D1 publication Critical patent/DE502005001614D1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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)
  • Nonwoven Fabrics (AREA)
  • Preliminary Treatment Of Fibers (AREA)

Abstract

Double screen former for a machine for producing a fibrous web comprises a headbox (2) equipped with a turbulator (3) and an outlet nozzle (4) that is subdivided by several lamellae (18) and has a restrictor at the tip. The ratio of the length of the lamellae to the length of the nozzle is at least 0.5 and the ratio of the depth of immersion of the restrictor to the nozzle slit width is at least 1 and the pulp stream from the nozzle has a free jet length (between nozzle and screen) of 300 mm or less.
DE502005001614T 2004-11-23 2005-11-17 Sheet forming system of a machine for producing a fibrous web Active DE502005001614D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102004000054A DE102004000054A1 (en) 2004-11-23 2004-11-23 Double screen former for a machine for producing a fibrous web, especially of paper or cardboard, comprises a headbox equipped with a turbulator and an outlet nozzle that is subdivided by lamellae and has a restrictor

Publications (1)

Publication Number Publication Date
DE502005001614D1 true DE502005001614D1 (en) 2007-11-15

Family

ID=36061348

Family Applications (2)

Application Number Title Priority Date Filing Date
DE102004000054A Withdrawn DE102004000054A1 (en) 2004-11-23 2004-11-23 Double screen former for a machine for producing a fibrous web, especially of paper or cardboard, comprises a headbox equipped with a turbulator and an outlet nozzle that is subdivided by lamellae and has a restrictor
DE502005001614T Active DE502005001614D1 (en) 2004-11-23 2005-11-17 Sheet forming system of a machine for producing a fibrous web

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE102004000054A Withdrawn DE102004000054A1 (en) 2004-11-23 2004-11-23 Double screen former for a machine for producing a fibrous web, especially of paper or cardboard, comprises a headbox equipped with a turbulator and an outlet nozzle that is subdivided by lamellae and has a restrictor

Country Status (3)

Country Link
EP (1) EP1659211B1 (en)
AT (1) ATE374858T1 (en)
DE (2) DE102004000054A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005037644A1 (en) * 2005-08-05 2007-02-08 Voith Patent Gmbh Twin-wire former of a machine for producing a fibrous web

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4005420C2 (en) * 1990-02-21 1995-06-08 Voith Gmbh J M Twin wire former
US5201999A (en) * 1991-06-10 1993-04-13 Beloit Technologies, Inc. Twin wire forming apparatus
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

Also Published As

Publication number Publication date
ATE374858T1 (en) 2007-10-15
EP1659211A2 (en) 2006-05-24
DE102004000054A1 (en) 2006-05-24
EP1659211A3 (en) 2006-05-31
EP1659211B1 (en) 2007-10-03

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition