SE8802707D0 - screening drum - Google Patents

screening drum

Info

Publication number
SE8802707D0
SE8802707D0 SE8802707A SE8802707A SE8802707D0 SE 8802707 D0 SE8802707 D0 SE 8802707D0 SE 8802707 A SE8802707 A SE 8802707A SE 8802707 A SE8802707 A SE 8802707A SE 8802707 D0 SE8802707 D0 SE 8802707D0
Authority
SE
Sweden
Prior art keywords
slots
perforated plate
small holes
screening drum
cylinder
Prior art date
Application number
SE8802707A
Other languages
Swedish (sv)
Other versions
SE458210B (en
SE8802707L (en
Inventor
F Frejborg
Original Assignee
Ahlstroem 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 Ahlstroem Oy filed Critical Ahlstroem Oy
Publication of SE8802707D0 publication Critical patent/SE8802707D0/en
Publication of SE8802707L publication Critical patent/SE8802707L/xx
Publication of SE458210B publication Critical patent/SE458210B/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
    • D21D5/16—Cylinders and plates for screens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/06—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums
    • B01D33/11—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums arranged for outward flow filtration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/44—Regenerating the filter material in the filter
    • B01D33/52—Regenerating the filter material in the filter by forces created by movement of the filter element

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)
  • Combined Means For Separation Of Solids (AREA)

Abstract

A screen cylinder (1) having holes (14) or slots which are located in the bottom of grooves (5) which are disposed in the inlet side surface of the cylinder and which generate micro turbulence. The screen cylinder (1) is composed of three parts (2, 3, 4) arranged one within the other and connected to each other by a shrink fit. A perforated plate part (3) located in the middle having small holes (14) or slots is sandwiched between the inner part (2) and the outer part (4). The outer part and the inner part have large apertures (6, 10) each of which extends over several small holes (14) in circumferential direction of the perforated plate part (3).
SE8802707A 1986-01-22 1988-07-22 screening drum SE458210B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI860298A FI73759B (en) 1986-01-22 1986-01-22 SILPLAOT.
PCT/FI1987/000012 WO1987004474A1 (en) 1986-01-22 1987-01-21 Screen cylinder

Publications (3)

Publication Number Publication Date
SE8802707D0 true SE8802707D0 (en) 1988-07-22
SE8802707L SE8802707L (en) 1988-07-22
SE458210B SE458210B (en) 1989-03-06

Family

ID=8522008

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8802707A SE458210B (en) 1986-01-22 1988-07-22 screening drum

Country Status (6)

Country Link
JP (1) JPH01501765A (en)
DE (2) DE3790016C2 (en)
FI (1) FI73759B (en)
FR (1) FR2593078B1 (en)
SE (1) SE458210B (en)
WO (1) WO1987004474A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2132921A1 (en) * 1993-10-28 1995-04-29 William A. Gero Finely perforated undulating screen cylinder
US5823355A (en) * 1995-03-29 1998-10-20 Beloit Technologies, Inc. Fibresaver screen basket support
FI118810B (en) * 2003-09-01 2008-03-31 Anpap Oy Screening structure for use in the manufacture of a fiber product
DE102007020325B3 (en) * 2007-04-30 2009-01-15 Voith Patent Gmbh Process for producing a screen for the treatment of pulp suspensions suitable for paper production
SE539965C2 (en) 2015-06-23 2018-02-13 Veolia Water Solutions & Tech Filter panel with a controlled liquid lift, and a drum filter for filtering liquid

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE252334C (en) *
DE628980C (en) * 1934-01-03 1936-04-20 Rudolf Haas Dr Ing Sieve for the purpose of sorting or dewatering in the manufacture of paper or the like.
FI67588C (en) * 1983-01-26 1985-04-10 Ahlstroem Oy SILPLAOT
DE3336874A1 (en) * 1983-10-11 1985-04-25 Hermann Finckh Maschinenfabrik GmbH & Co, 7410 Reutlingen SORTING SCREEN

Also Published As

Publication number Publication date
DE3790016T1 (en) 1989-03-23
WO1987004474A1 (en) 1987-07-30
SE458210B (en) 1989-03-06
FR2593078B1 (en) 1990-12-14
DE3790016C2 (en) 1990-09-13
FI860298A0 (en) 1986-01-22
FR2593078A1 (en) 1987-07-24
FI73759B (en) 1987-07-31
JPH01501765A (en) 1989-06-22
SE8802707L (en) 1988-07-22

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