EP0275921A3 - Cleaning foil - Google Patents

Cleaning foil Download PDF

Info

Publication number
EP0275921A3
EP0275921A3 EP88100408A EP88100408A EP0275921A3 EP 0275921 A3 EP0275921 A3 EP 0275921A3 EP 88100408 A EP88100408 A EP 88100408A EP 88100408 A EP88100408 A EP 88100408A EP 0275921 A3 EP0275921 A3 EP 0275921A3
Authority
EP
European Patent Office
Prior art keywords
end height
maximum end
vane
screening
maximum
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
EP88100408A
Other languages
German (de)
Other versions
EP0275921A2 (en
EP0275921B1 (en
Inventor
Reimund Rienecker
Joachim Nittke
Lothar Pfalzer
Klaus Schmidt
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
Priority to AT88100408T priority Critical patent/ATE56765T1/en
Publication of EP0275921A2 publication Critical patent/EP0275921A2/en
Publication of EP0275921A3 publication Critical patent/EP0275921A3/en
Application granted granted Critical
Publication of EP0275921B1 publication Critical patent/EP0275921B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • D21D5/023—Stationary screen-drums
    • D21D5/026—Stationary screen-drums with rotating cleaning foils

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)
  • Combined Means For Separation Of Solids (AREA)
  • Centrifugal Separators (AREA)
  • Gyroscopes (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Rotary Pumps (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Manufacturing Of Electric Cables (AREA)
  • Laminated Bodies (AREA)

Abstract

1. Screening vane (1) for a rotor with drum-like base body of a screen, which are arranged on the base body distributed over the circumference and staggered over the length, with the radial outer contour of the screening vane (1) steadily increasing in direction of rotation as circular arc up to a maximum end height (H) over the rotor shell surface (15) and then abruptly dropping in the form of a concave circular arc (8) up to the rotor shell surface (15) or to 1/10 of the maximum end height (H), so that a front portion (7) is formed, whose circumferential extension (L 2) corresponds to 1.0 to 1, 5 times the maximum end height (H), and a rear portion (2), whose maximum initial height (h') at the rear edge (12) amounts to 0.2 times the maximum end height (H) and whose length (L 1) amounts to 3 to 8 times, preferably 3 to 7 times the maximum end height (H) and, characterized in that the tangent placed onto the outer contour of the screening vane (1) in the point of the maximum end height (H) runs normal to the radius passing through this point.
EP88100408A 1987-01-22 1988-01-14 Cleaning foil Expired - Lifetime EP0275921B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88100408T ATE56765T1 (en) 1987-01-22 1988-01-14 SORTING WINGS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873701669 DE3701669A1 (en) 1987-01-22 1987-01-22 SORTING WING
DE3701669 1987-01-22

Publications (3)

Publication Number Publication Date
EP0275921A2 EP0275921A2 (en) 1988-07-27
EP0275921A3 true EP0275921A3 (en) 1989-02-22
EP0275921B1 EP0275921B1 (en) 1990-09-19

Family

ID=6319230

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88100408A Expired - Lifetime EP0275921B1 (en) 1987-01-22 1988-01-14 Cleaning foil

Country Status (4)

Country Link
EP (1) EP0275921B1 (en)
AT (1) ATE56765T1 (en)
DE (2) DE3701669A1 (en)
ES (1) ES2018303B3 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE464473B (en) * 1988-11-17 1991-04-29 Sunds Defibrator Ind Ab A screening device
JP3542594B2 (en) * 1992-06-20 2004-07-14 ボイト フィンク ファイバー システムズ ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニー コマンディト ゲゼルシャフト Pressure separation device for fiber suspension
FR2706495B1 (en) * 1993-06-16 1995-09-08 Lamort E & M Rotor for hydrodynamic purification under pressure of paper pulp, and device provided with this rotor.
US5566833A (en) * 1995-01-25 1996-10-22 Hermannfinckh Maschinenfabrik Gmbh & Co. Pressure sorter for fiber suspensions as well as a process for the preparation of fiber suspensions
DE102010063891A1 (en) 2010-12-22 2012-06-28 Voith Patent Gmbh pressure screens
DE102011079230A1 (en) 2011-07-15 2013-01-17 Voith Patent Gmbh pressure screens
DE102011089108A1 (en) 2011-12-20 2013-06-20 Voith Patent Gmbh Multipart rotor blade for rotationally symmetric rotor of pressurized sorting machine for cleaning of fibrous material suspension, has wire element surrounding rotor, where parts of blade are interconnected by joint and fastened to rotor
DE102012220330A1 (en) 2012-11-08 2014-05-08 Voith Patent Gmbh Pressure screen for cleaning paper pulp suspension in wet sieving, has rotor which is provided with blades-gap plane that is extended along facing side portion of screen element, and that is provided with ridges
DE102013216433A1 (en) 2013-08-20 2015-03-12 Voith Patent Gmbh pressure screens
DE202015009033U1 (en) 2015-06-03 2016-07-17 Voith Patent Gmbh pressure screens
DE102019107693A1 (en) 2019-03-26 2020-10-01 Voith Patent Gmbh Pressure sorter

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB254068A (en) * 1925-05-23 1926-07-01 Samuel Milne Improvements in or relating to mechanical screens, strainers and the like
DE2712749A1 (en) * 1977-03-23 1979-02-08 Finckh Maschf SORTER FOR SITING FIBER SUSPENSIONS
EP0034780A2 (en) * 1980-02-21 1981-09-02 J.M. Voith GmbH Rotating sorter

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2712715B2 (en) * 1977-03-23 1979-05-23 Hermann Finckh Maschinenfabrik Gmbh & Co, 7417 Pfullingen Sorter for fiber suspensions

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB254068A (en) * 1925-05-23 1926-07-01 Samuel Milne Improvements in or relating to mechanical screens, strainers and the like
DE2712749A1 (en) * 1977-03-23 1979-02-08 Finckh Maschf SORTER FOR SITING FIBER SUSPENSIONS
EP0034780A2 (en) * 1980-02-21 1981-09-02 J.M. Voith GmbH Rotating sorter

Also Published As

Publication number Publication date
ES2018303B3 (en) 1991-04-01
EP0275921A2 (en) 1988-07-27
DE3701669C2 (en) 1989-12-14
DE3701669A1 (en) 1988-08-04
EP0275921B1 (en) 1990-09-19
DE3860609D1 (en) 1990-10-25
ATE56765T1 (en) 1990-10-15

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