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SE9900869L - A screening device - Google Patents

A screening device

Info

Publication number
SE9900869L
SE9900869L SE9900869A SE9900869A SE9900869L SE 9900869 L SE9900869 L SE 9900869L SE 9900869 A SE9900869 A SE 9900869A SE 9900869 A SE9900869 A SE 9900869A SE 9900869 L SE9900869 L SE 9900869L
Authority
SE
Sweden
Prior art keywords
screen
stator
accept
chamber
screening apparatus
Prior art date
Application number
SE9900869A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE9900869D0 (en
SE515589C2 (en
Inventor
Klas Kristroem
Kjell Forslund
Tomas Wikstroem
Original Assignee
Valmet Fibertech Ab
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=20414798&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=SE9900869(L) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Valmet Fibertech Ab filed Critical Valmet Fibertech Ab
Priority to SE9900869A priority Critical patent/SE515589C2/en
Publication of SE9900869D0 publication Critical patent/SE9900869D0/en
Priority to EP00915645A priority patent/EP1159482B1/en
Priority to PCT/SE2000/000411 priority patent/WO2000053845A1/en
Priority to AU36871/00A priority patent/AU3687100A/en
Priority to AT00915645T priority patent/ATE327371T1/en
Priority to JP2000603460A priority patent/JP4316814B2/en
Priority to DE60028188T priority patent/DE60028188T2/en
Publication of SE9900869L publication Critical patent/SE9900869L/en
Publication of SE515589C2 publication Critical patent/SE515589C2/en

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
    • D21D5/00—Purification of the pulp suspension by mechanical means; Apparatus therefor
    • D21D5/02—Straining or screening the pulp
    • D21D5/06—Rotary screen-drums

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)
  • Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
  • Formation And Processing Of Food Products (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
  • Eye Examination Apparatus (AREA)
  • Noodles (AREA)
  • Combined Means For Separation Of Solids (AREA)

Abstract

A screening apparatus for separating fiber suspensions, preferably pulp suspensions, comprising a screen housing (1), centrally located in the screen housing (1), a stator (8) enclosed in a screen means (7). The screen means is rotary and divides the screen housing (1) into a screen chamber (9) between the screen housing (1) and screen means (7) and an accept chamber (10) between the screen means (7) and stator (8). On the stator (8), wings are located for creating suction pulses. The screening apparatus comprises further inlet (4) for the fiber suspension to the screen chamber (9), reject outlet (6) for reject from the screen chamber (9), and accept outlet (5) for accept from the accept chamber (10). In such a screening apparatus, problems arise by thickening and plugging. The invention solves these problems in that on the stator (8) at least one barrier/pulse element (12) is located which extends in axial direction along the entire stator (8) and is tightly attached to the stator (8) and extends from the stator (8) out to the screen means (7), so that accept substantially is prevented from tangentially passing the barrier/pulse element (12).
SE9900869A 1999-03-10 1999-03-10 Screening device for separating fiber suspensions, and stator for use in the screening device SE515589C2 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
SE9900869A SE515589C2 (en) 1999-03-10 1999-03-10 Screening device for separating fiber suspensions, and stator for use in the screening device
EP00915645A EP1159482B1 (en) 1999-03-10 2000-03-02 Screening apparatus
PCT/SE2000/000411 WO2000053845A1 (en) 1999-03-10 2000-03-02 Screening apparatus
AU36871/00A AU3687100A (en) 1999-03-10 2000-03-02 Screening apparatus
AT00915645T ATE327371T1 (en) 1999-03-10 2000-03-02 SCREENING DEVICE
JP2000603460A JP4316814B2 (en) 1999-03-10 2000-03-02 Screening equipment
DE60028188T DE60028188T2 (en) 1999-03-10 2000-03-02 screening device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9900869A SE515589C2 (en) 1999-03-10 1999-03-10 Screening device for separating fiber suspensions, and stator for use in the screening device

Publications (3)

Publication Number Publication Date
SE9900869D0 SE9900869D0 (en) 1999-03-10
SE9900869L true SE9900869L (en) 2000-09-11
SE515589C2 SE515589C2 (en) 2001-09-03

Family

ID=20414798

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9900869A SE515589C2 (en) 1999-03-10 1999-03-10 Screening device for separating fiber suspensions, and stator for use in the screening device

Country Status (7)

Country Link
EP (1) EP1159482B1 (en)
JP (1) JP4316814B2 (en)
AT (1) ATE327371T1 (en)
AU (1) AU3687100A (en)
DE (1) DE60028188T2 (en)
SE (1) SE515589C2 (en)
WO (1) WO2000053845A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI117867B (en) * 2004-12-10 2007-03-30 Metso Paper Inc Sorter and method for sorting fiber pulp
FI118900B (en) * 2006-03-17 2008-04-30 Andritz Oy Arrangement in sorters for the pulp and paper industry
CN110924212B (en) * 2019-12-26 2025-03-14 郑州运达造纸设备有限公司 A pressure knot removal machine

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3411721A (en) * 1966-09-02 1968-11-19 Ingersoll Rand Canada Refining and screening apparatus
SE427124B (en) * 1980-01-28 1983-03-07 Celleco Ab DEVICE FOR FILING OF FIBER PASS PENSIONS
SE429819B (en) * 1982-02-10 1983-10-03 Harry Nilsson SILMASKIN
FI76139C (en) * 1987-01-19 1988-09-09 Ahlstroem Oy Twigs separation method and apparatus
KR890701835A (en) * 1987-06-26 1989-12-21 스벤 웨스터홀름, 카제 헨릭슨 Pulp Screening Apparatus and Screening Method of Pulp Suspension
US5143220A (en) * 1990-11-08 1992-09-01 Ingersoll-Rand Company Apparatus for screening to remove knots from a fluid borne slurry of fibers and knots
DE19836318A1 (en) * 1998-08-11 1999-07-15 Voith Sulzer Papiertech Patent Rotor for fiber suspension pressure sorter for papermaking

Also Published As

Publication number Publication date
EP1159482B1 (en) 2006-05-24
WO2000053845A1 (en) 2000-09-14
ATE327371T1 (en) 2006-06-15
JP4316814B2 (en) 2009-08-19
AU3687100A (en) 2000-09-28
DE60028188D1 (en) 2006-06-29
EP1159482A1 (en) 2001-12-05
DE60028188T2 (en) 2007-03-15
SE9900869D0 (en) 1999-03-10
JP2002538331A (en) 2002-11-12
SE515589C2 (en) 2001-09-03

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Legal Events

Date Code Title Description
NUG Patent has lapsed