SE9804348D0 - A shoe type press and a method for its use - Google Patents

A shoe type press and a method for its use

Info

Publication number
SE9804348D0
SE9804348D0 SE9804348A SE9804348A SE9804348D0 SE 9804348 D0 SE9804348 D0 SE 9804348D0 SE 9804348 A SE9804348 A SE 9804348A SE 9804348 A SE9804348 A SE 9804348A SE 9804348 D0 SE9804348 D0 SE 9804348D0
Authority
SE
Sweden
Prior art keywords
shoe
roll
speed
rolls
gap
Prior art date
Application number
SE9804348A
Other languages
Swedish (sv)
Other versions
SE513274C2 (en
SE9804348L (en
Inventor
Petter Honkalampi
Nils-Erik Saefman
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
Priority to SE9804348A priority Critical patent/SE513274C2/en
Publication of SE9804348D0 publication Critical patent/SE9804348D0/en
Publication of SE9804348L publication Critical patent/SE9804348L/en
Publication of SE513274C2 publication Critical patent/SE513274C2/en

Links

Classifications

    • 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
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G1/00—Calenders; Smoothing apparatus
    • D21G1/002—Opening or closing mechanisms; Regulating the pressure

Abstract

The web or forming wire (80) are guided through the gap in between the two rolls at a first speed and then the shoe roll is made to rotate at an equal speed before the two rolls are moved back together to form a nip. A method for operating a shoe press (10) comprising a cylindrical roll (22), a shoe roll, a displacement mechanism (33) for moving the cylindrical roll towards and away from the shoe roll, and a rotation mechanism for the shoe roll, includes the following steps : (i) the two rolls are separated to form a gap ; (ii) a fibrous web is guided through the gap at a first speed ; (iii) the shoe roll rotation mechanism is activated, the shoe roll peripheral rotation speed being essentially the same as the web speed ; and (iv) the displacement mechanism is activated to form a press nip between the two rolls. Independent claims are also included for (a) a start-up procedure for the forming section of a paper machine, using this method, and (b) the shoe press.
SE9804348A 1998-12-16 1998-12-16 Shoe press operating method used during e.g. start=up of forming section containing shoe press, by rotating shoe roll at same speed as web or wire before closing to form nip SE513274C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE9804348A SE513274C2 (en) 1998-12-16 1998-12-16 Shoe press operating method used during e.g. start=up of forming section containing shoe press, by rotating shoe roll at same speed as web or wire before closing to form nip

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9804348A SE513274C2 (en) 1998-12-16 1998-12-16 Shoe press operating method used during e.g. start=up of forming section containing shoe press, by rotating shoe roll at same speed as web or wire before closing to form nip

Publications (3)

Publication Number Publication Date
SE9804348D0 true SE9804348D0 (en) 1998-12-16
SE9804348L SE9804348L (en) 2000-06-17
SE513274C2 SE513274C2 (en) 2000-08-14

Family

ID=20413680

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9804348A SE513274C2 (en) 1998-12-16 1998-12-16 Shoe press operating method used during e.g. start=up of forming section containing shoe press, by rotating shoe roll at same speed as web or wire before closing to form nip

Country Status (1)

Country Link
SE (1) SE513274C2 (en)

Also Published As

Publication number Publication date
SE513274C2 (en) 2000-08-14
SE9804348L (en) 2000-06-17

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Legal Events

Date Code Title Description
NUG Patent has lapsed