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BR9909424A - Spacing roll mold on a paper machine - Google Patents

Spacing roll mold on a paper machine

Info

Publication number
BR9909424A
BR9909424A BR9909424-0A BR9909424A BR9909424A BR 9909424 A BR9909424 A BR 9909424A BR 9909424 A BR9909424 A BR 9909424A BR 9909424 A BR9909424 A BR 9909424A
Authority
BR
Brazil
Prior art keywords
screen
forming
paper
screens
sheet
Prior art date
Application number
BR9909424-0A
Other languages
Portuguese (pt)
Inventor
Matti Luontama
Pekka Parkarinen
Ari Puurtinen
Janne Puurtinen
Mika Vientola
Original Assignee
Valmet Corp
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 Valmet Corp filed Critical Valmet Corp
Publication of BR9909424A publication Critical patent/BR9909424A/en

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

"MOLDE DE ROLO DE AFASTAMENTO EM UMA MáQUINA DE PAPEL". A invenção refere-se a um molde de rolo de afastamento em uma máquina de papel, compreendendo um cabeçote (30, 35, 36), que alimenta um jato de suspensão de massa (J) para dentro da folga de formação (G) definida pelas telas de formação (10, 20). Das telas de formação (10, 20), uma tela é uma tela de cobertura (10) guiada por seus rolos guia (18), e a outra tela é uma tela de transporte (20) guiada por seus rolos guia (21, 28), ao longo de cuja tela de transporte a folha de papel (W) segue após a zona de telas duplas definida pelas citadas telas de formação (10, 20). A zona de telas duplas começa diretamente após a folga de formação em um setor curvo (a) do primeiro rolo de formação (11). No setor curvo (a) da zona de telas duplas no primeiro rolo de formação (11) existem pelo menos duas zonas sucessivas de sucção/pressão (11a, 11b), através das quais um efeito de pressão que varia na direção de progresso da folha de papel (10) pode ser aplicado através da manta perfurada (12a) do primeiro cilindro de formação (11) à folha de papel (W) que está sendo formada, tal que o processo de retirada de água no citado setor curvo (a) possa ser controlado."REMOVAL ROLLER TEMPLATE ON A PAPER MACHINE". The invention relates to a spacing roll mold on a paper machine, comprising a head (30, 35, 36), which feeds a mass suspension jet (J) into the defined forming gap (G) through the training screens (10, 20). Of the forming screens (10, 20), one screen is a cover screen (10) guided by its guide rollers (18), and the other screen is a transport screen (20) guided by its guide rollers (21, 28 ), along whose transport screen the paper sheet (W) follows after the zone of double screens defined by the mentioned training screens (10, 20). The double screen zone begins directly after the forming gap in a curved section (a) of the first forming roll (11). In the curved sector (a) of the double screen zone on the first forming roll (11) there are at least two successive suction / pressure zones (11a, 11b), through which a pressure effect that varies in the direction of the sheet's progress of paper (10) can be applied through the perforated blanket (12a) of the first forming cylinder (11) to the sheet of paper (W) being formed, such that the process of withdrawing water in the aforementioned curved sector (a) can be controlled.

BR9909424-0A 1998-04-01 1999-03-29 Spacing roll mold on a paper machine BR9909424A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI980743A FI980743A7 (en) 1998-04-01 1998-04-01 Paper machine mouth roll former
PCT/FI1999/000255 WO1999050498A1 (en) 1998-04-01 1999-03-29 Gap-roll former in a paper machine

Publications (1)

Publication Number Publication Date
BR9909424A true BR9909424A (en) 2000-11-21

Family

ID=8551436

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9909424-0A BR9909424A (en) 1998-04-01 1999-03-29 Spacing roll mold on a paper machine

Country Status (5)

Country Link
AU (1) AU3038299A (en)
BR (1) BR9909424A (en)
DE (1) DE19983087T1 (en)
FI (1) FI980743A7 (en)
WO (1) WO1999050498A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI120880B (en) * 2008-10-24 2010-04-15 Metso Paper Inc Formation

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US384623A (en) * 1888-06-19 Fernan
US3844881A (en) * 1972-06-09 1974-10-29 Rice Barton Corp Multi-layered fibrous web forming system employing a suction roll positioned adjacent the web side of the forming wire and around which the forming wire is wrapped
FI379274A7 (en) * 1974-12-30 1976-07-01 Valmet Oy
FI83977C (en) * 1989-11-06 1991-09-25 Valmet Paper Machinery Inc Gap formers in paper machine

Also Published As

Publication number Publication date
FI980743A7 (en) 1999-10-02
DE19983087T1 (en) 2001-05-10
FI980743A0 (en) 1998-04-01
AU3038299A (en) 1999-10-18
WO1999050498A1 (en) 1999-10-07

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Legal Events

Date Code Title Description
FA10 Dismissal: dismissal - article 33 of industrial property law
B11Y Definitive dismissal - extension of time limit for request of examination expired [chapter 11.1.1 patent gazette]