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SE9304177L - A screening device - Google Patents

A screening device

Info

Publication number
SE9304177L
SE9304177L SE9304177A SE9304177A SE9304177L SE 9304177 L SE9304177 L SE 9304177L SE 9304177 A SE9304177 A SE 9304177A SE 9304177 A SE9304177 A SE 9304177A SE 9304177 L SE9304177 L SE 9304177L
Authority
SE
Sweden
Prior art keywords
rod
chip bed
profiles
screen device
facing towards
Prior art date
Application number
SE9304177A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE9304177D0 (en
SE501243C2 (en
Inventor
Peter Olsson
Original Assignee
Kvaerner Pulping Tech
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 Kvaerner Pulping Tech filed Critical Kvaerner Pulping Tech
Priority to SE9304177A priority Critical patent/SE9304177L/en
Publication of SE9304177D0 publication Critical patent/SE9304177D0/en
Priority to PCT/SE1994/001045 priority patent/WO1995016817A1/en
Priority to AU12855/95A priority patent/AU1285595A/en
Publication of SE501243C2 publication Critical patent/SE501243C2/en
Publication of SE9304177L publication Critical patent/SE9304177L/en

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C7/00—Digesters
    • D21C7/08—Discharge devices

Landscapes

  • Paper (AREA)

Abstract

The present invention relates to a screen device when displacing liquid through a chip bed, preferably in conjunction with the withdrawal of cooking liquid in a continuous digester for producing chemical pulp. The said screen device (5) preferably has a rectangular shape and is constructed from a multiplicity of rod profiles (6) which are fixed, parallel to each other, at a number of crossbars (7). The said rod profiles (6) are arranged with their longitudinal extent horizontal, and these rod profiles (6) together exhibit a wash-board-like surface facing towards the chip bed. This surface is produced by the surface of each rod profile (6) facing towards the chip bed being bevelled at a given angle, which can be optimized, so that a widening in the cross-sectional area of the digester occurs prior to each new rod, seen from above and downwards.
SE9304177A 1993-12-16 1993-12-16 A screening device SE9304177L (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE9304177A SE9304177L (en) 1993-12-16 1993-12-16 A screening device
PCT/SE1994/001045 WO1995016817A1 (en) 1993-12-16 1994-11-08 Screen device
AU12855/95A AU1285595A (en) 1993-12-16 1994-11-08 Screen device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9304177A SE9304177L (en) 1993-12-16 1993-12-16 A screening device

Publications (3)

Publication Number Publication Date
SE9304177D0 SE9304177D0 (en) 1993-12-16
SE501243C2 SE501243C2 (en) 1994-12-19
SE9304177L true SE9304177L (en) 1994-12-19

Family

ID=20392116

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9304177A SE9304177L (en) 1993-12-16 1993-12-16 A screening device

Country Status (3)

Country Link
AU (1) AU1285595A (en)
SE (1) SE9304177L (en)
WO (1) WO1995016817A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE500959C2 (en) * 1993-02-16 1994-10-10 Kvaerner Pulping Tech Strainer in a continuous digester
FI97979B (en) * 1995-02-23 1996-12-13 Ahlstrom Machinery Oy Rose
US6165323A (en) * 1999-02-10 2000-12-26 Andritz-Ahlstrom Inc. Screen plate having a plurality of inclined slots in a digester
SE531717C2 (en) 2007-11-30 2009-07-21 Metso Fiber Karlstad Ab Kokarsil for a continuous cellulose pulp cooker
CA2860758C (en) 2012-01-12 2019-04-02 Valmet Ab Profile bar screen for digester vessels
SE538326C2 (en) 2014-09-01 2016-05-17 Valmet Oy Profile bar screen for digester vessels

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2998064A (en) * 1957-12-11 1961-08-29 Improved Machinery Inc Strainer construction
DE1223343B (en) * 1967-05-15 1966-08-25 Improved Machinery Inc Cylindrical edge filter
SE354088B (en) * 1970-09-24 1973-02-26 Kamyr Ab

Also Published As

Publication number Publication date
SE9304177D0 (en) 1993-12-16
WO1995016817A1 (en) 1995-06-22
AU1285595A (en) 1995-07-03
SE501243C2 (en) 1994-12-19

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Legal Events

Date Code Title Description
NUG Patent has lapsed