EP0410102A3 - Straining apparatus - Google Patents

Straining apparatus Download PDF

Info

Publication number
EP0410102A3
EP0410102A3 EP19900109711 EP90109711A EP0410102A3 EP 0410102 A3 EP0410102 A3 EP 0410102A3 EP 19900109711 EP19900109711 EP 19900109711 EP 90109711 A EP90109711 A EP 90109711A EP 0410102 A3 EP0410102 A3 EP 0410102A3
Authority
EP
European Patent Office
Prior art keywords
rotor
amounts
circular arcs
rotation
sorter
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
EP19900109711
Other languages
German (de)
Other versions
EP0410102B1 (en
EP0410102A2 (en
Inventor
Peter Schweiss
Reimund Rienecker
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JM Voith GmbH
Original Assignee
JM Voith GmbH
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 JM Voith GmbH filed Critical JM Voith GmbH
Publication of EP0410102A2 publication Critical patent/EP0410102A2/en
Publication of EP0410102A3 publication Critical patent/EP0410102A3/en
Application granted granted Critical
Publication of EP0410102B1 publication Critical patent/EP0410102B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/18—Drum screens
    • B07B1/20—Stationary drums with moving interior agitators
    • 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
    • D21D5/023—Stationary screen-drums
    • D21D5/026—Stationary screen-drums with rotating cleaning foils

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Combined Means For Separation Of Solids (AREA)
  • Paper (AREA)
  • Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
  • Eye Examination Apparatus (AREA)
  • Noodles (AREA)
  • Optical Communication System (AREA)
  • Centrifugal Separators (AREA)
  • Water Treatment By Sorption (AREA)
  • Meat, Egg Or Seafood Products (AREA)
  • Cell Separators (AREA)
  • Cyclones (AREA)
  • Filtration Of Liquid (AREA)

Abstract

The rotor of a sorter has a circumference which, in cross section perpendicular to the rotor axis of rotation, is essentially composed of circular arcs. Depending on sorter size, the number of circular arcs amounts to between two and eight. The eccentricity of the circular arcs relative to their center, based on the rotor axis of rotation, amounts to preferably between 4 and 10 mm. This makes it possible to obtain slight rotor stresses at a good sorting efficacy, preferably also with a mean substance density of more than 3% of fiber suspensions. The difference between the smallest and greatest rotor spacing e=fmax-fmin amounts to maximally 60 mm, preferably 20 mm.
EP90109711A 1989-07-28 1990-05-22 Straining apparatus Expired - Lifetime EP0410102B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3925020 1989-07-28
DE3925020A DE3925020A1 (en) 1989-07-28 1989-07-28 SORTER

Publications (3)

Publication Number Publication Date
EP0410102A2 EP0410102A2 (en) 1991-01-30
EP0410102A3 true EP0410102A3 (en) 1991-07-31
EP0410102B1 EP0410102B1 (en) 1994-08-03

Family

ID=6386045

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90109711A Expired - Lifetime EP0410102B1 (en) 1989-07-28 1990-05-22 Straining apparatus

Country Status (11)

Country Link
US (1) US5045183A (en)
EP (1) EP0410102B1 (en)
JP (1) JPH0364591A (en)
KR (1) KR910002522A (en)
AT (1) ATE109530T1 (en)
BR (1) BR9003471A (en)
CA (1) CA2022164C (en)
DE (1) DE3925020A1 (en)
DK (1) DK0410102T3 (en)
ES (1) ES2057267T3 (en)
FI (1) FI93318C (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4123112A1 (en) * 1991-07-12 1993-01-21 Voith Gmbh J M PRINT SORTER
DE4133562A1 (en) * 1991-10-10 1993-04-22 Voith Gmbh J M ROLLER WITH BEND COMPENSATION
DE19911884A1 (en) * 1999-03-17 2000-09-21 Voith Sulzer Papiertech Patent Pressure sorter for screening a paper pulp suspension and screen clearer for one
DE102012013642B4 (en) * 2012-07-09 2020-12-24 Thermo Electron Led Gmbh Centrifuge tube unit

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE290357C (en) *
GB1118646A (en) * 1965-03-30 1968-07-03 Ingersoll Rand Canada Screening apparatus
US3680696A (en) * 1970-03-23 1972-08-01 Bird Machine Co Screening

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE129814C (en) *
US3762401A (en) * 1972-01-05 1973-10-02 J Tupper Surgical retractor
FR2410081A1 (en) * 1977-11-23 1979-06-22 Lamort Ingenieurs Construc E E APPARATUS FOR PULPING PAPER PULP
FI67588C (en) * 1983-01-26 1985-04-10 Ahlstroem Oy SILPLAOT
US4855038A (en) * 1985-06-20 1989-08-08 Beloit Corporation High consistency pressure screen and method of separating accepts and rejects

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE290357C (en) *
GB1118646A (en) * 1965-03-30 1968-07-03 Ingersoll Rand Canada Screening apparatus
US3680696A (en) * 1970-03-23 1972-08-01 Bird Machine Co Screening

Also Published As

Publication number Publication date
ATE109530T1 (en) 1994-08-15
CA2022164A1 (en) 1991-01-29
US5045183A (en) 1991-09-03
KR910002522A (en) 1991-02-25
CA2022164C (en) 1996-10-22
BR9003471A (en) 1991-08-27
ES2057267T3 (en) 1994-10-16
DE3925020C2 (en) 1991-06-27
DE3925020A1 (en) 1991-01-31
EP0410102B1 (en) 1994-08-03
FI93318C (en) 1995-03-27
FI93318B (en) 1994-12-15
FI903781A0 (en) 1990-07-27
EP0410102A2 (en) 1991-01-30
JPH0364591A (en) 1991-03-19
DK0410102T3 (en) 1994-08-29

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