SE8604035D0 - PROCEDURE AND DEVICE FOR IMPROVING THE PAPER MAKING PROCESS IN A PLANVIRA SECTION - Google Patents

PROCEDURE AND DEVICE FOR IMPROVING THE PAPER MAKING PROCESS IN A PLANVIRA SECTION

Info

Publication number
SE8604035D0
SE8604035D0 SE8604035A SE8604035A SE8604035D0 SE 8604035 D0 SE8604035 D0 SE 8604035D0 SE 8604035 A SE8604035 A SE 8604035A SE 8604035 A SE8604035 A SE 8604035A SE 8604035 D0 SE8604035 D0 SE 8604035D0
Authority
SE
Sweden
Prior art keywords
water
wire
wires
run
dewatering
Prior art date
Application number
SE8604035A
Other languages
Swedish (sv)
Other versions
SE8604035L (en
SE452997B (en
Inventor
A Malashenko
Original Assignee
Valmet Oy
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 Oy filed Critical Valmet Oy
Publication of SE8604035L publication Critical patent/SE8604035L/en
Publication of SE8604035D0 publication Critical patent/SE8604035D0/en
Publication of SE452997B publication Critical patent/SE452997B/en

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F3/00—Press section of machines for making continuous webs of paper
    • 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
    • D21F11/00—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines
    • D21F11/02—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines of the Fourdrinier type
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F3/00—Press section of machines for making continuous webs of paper
    • D21F3/02—Wet presses
    • D21F3/04—Arrangements thereof
    • 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
    • D21F9/00—Complete machines for making continuous webs of paper
    • D21F9/02—Complete machines for making continuous webs of paper of the Fourdrinier type

Landscapes

  • Paper (AREA)

Abstract

Procedure in the forming of a paper web and in dewatering the paper pulp suspension. A pulp suspension jet (J) is supplied onto a lower wire (11), water is drained through the lower wire (11), the fibre pulp course (Wo) is conducted into a dewatering and forming zone (L), where water is drained through the wires (11, 31) and the web (W) is conducted onto a pick-up fabric (21). In the forming zone, the joint run of the wires (11, 31) is deflected, a dewatering effect is caused such that water escapes from the pulpe course (Wo) only through the upper wire (31), a change of direction of the run of the wires (11, 31) is caused in the opposite direction, water that has escaped through the upper wire (31) is collected and said water is guided to water collecting means (40, 46), the run of the twin-wire part is deflected in a direction opposite to preceding deflection; and the joint run of the wires (11, 31) and of the pulp course conforms, starting from the single-wire initial part (11a), to sinusoidal path, the ratio of this wave's length lambda to the amplitude H of the wave being in the range lambda /H = 12 to 20. The invention also concerns an upper wire unit (30), with ancillary equipment (41, 43, 45) for remodelling the Fourdrinier wire section of a paper machine.
SE8604035A 1985-01-28 1986-09-24 UPPER VIENCE SE452997B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI850364A FI82084C (en) 1985-01-28 1985-01-28 Upper virus unit

Publications (3)

Publication Number Publication Date
SE8604035L SE8604035L (en) 1986-09-24
SE8604035D0 true SE8604035D0 (en) 1986-09-24
SE452997B SE452997B (en) 1988-01-04

Family

ID=8520273

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8604035A SE452997B (en) 1985-01-28 1986-09-24 UPPER VIENCE

Country Status (5)

Country Link
DE (1) DE3690026T1 (en)
FI (1) FI82084C (en)
GB (1) GB2180273B (en)
SE (1) SE452997B (en)
WO (1) WO1986004368A1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4875977A (en) * 1987-04-17 1989-10-24 The Black Clawson Company Horizontal twin wire machine with vertically adjustable open roll and deflector blade
FI77281C (en) * 1987-06-18 1989-02-10 Valmet Paper Machinery Inc HYBRIDFORMARE FOER EN PAPPERSMASKIN.
DE3815316C2 (en) * 1988-05-05 1996-02-01 Voith Sulzer Papiermasch Gmbh Device for dewatering on a twin wire former
AU4307889A (en) * 1988-10-31 1990-05-28 Beloit Corporation Forming apparatus
US5389206A (en) * 1989-08-22 1995-02-14 J. M. Voith Gmbh Twin wire former
DE4026953C2 (en) * 1990-01-26 1995-11-30 Escher Wyss Gmbh Dewatering device and method for dewatering on a twin wire former
DE4002304A1 (en) * 1990-01-26 1991-08-14 Escher Wyss Gmbh Paper forming stretch
WO1992014880A1 (en) * 1991-02-25 1992-09-03 Ab Nordiska Egoutteurfabriken Top wire device
FI920228A0 (en) * 1992-01-17 1992-01-17 Valmet Paper Machinery Inc BANFORMNINGSPARTI FOER PAPPERSMASKIN.
EP0704006B1 (en) * 1994-04-12 1998-09-23 Jwi Ltd Improved formation in a two fabric paper machine
FI991356A (en) * 1999-06-14 2000-12-15 Valmet Corp Procedure for removing water in the wire portion of a cellulose machine and drainage unit
CN110735351A (en) * 2019-11-21 2020-01-31 中冶美利云产业投资股份有限公司 fourdrinier paper-making machine with top-wire former

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI810373L (en) * 1981-02-10 1982-08-11 Valmet Oy VIRAPARTI FOER EN PAPPERSMASKIN
FI73763C (en) * 1982-03-02 1987-11-09 Valmet Oy BANFORMNINGSPARTI FOER PAPPERSMASKIN, SOM AER AVSETT FOER MODERNISERING AV ETT PLANVIRAPARTI.
FI75376C (en) * 1982-04-30 1988-06-09 Valmet Oy FORMNINGSSKO FOER FORMARE I PAPPERSMASKIN.
GB2143871B (en) * 1983-07-23 1986-11-12 Beloit Walmsley Ltd Twin wire paper forming machine

Also Published As

Publication number Publication date
SE8604035L (en) 1986-09-24
FI850364L (en) 1986-07-29
FI82084B (en) 1990-09-28
SE452997B (en) 1988-01-04
FI82084C (en) 1991-01-10
DE3690026T1 (en) 1987-01-29
FI850364A0 (en) 1985-01-28
GB2180273B (en) 1988-06-22
WO1986004368A1 (en) 1986-07-31
GB2180273A (en) 1987-03-25
GB8622953D0 (en) 1986-10-29

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