EP0094022A2 - Rotor pour appareil de classification pour l'épuration de suspensions de fibres, notamment ceux de l'industrie papetière - Google Patents

Rotor pour appareil de classification pour l'épuration de suspensions de fibres, notamment ceux de l'industrie papetière Download PDF

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Publication number
EP0094022A2
EP0094022A2 EP83104384A EP83104384A EP0094022A2 EP 0094022 A2 EP0094022 A2 EP 0094022A2 EP 83104384 A EP83104384 A EP 83104384A EP 83104384 A EP83104384 A EP 83104384A EP 0094022 A2 EP0094022 A2 EP 0094022A2
Authority
EP
European Patent Office
Prior art keywords
rotor
sorting
rotor according
profiles
supporting walls
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
EP83104384A
Other languages
German (de)
English (en)
Other versions
EP0094022B1 (fr
EP0094022A3 (en
Inventor
Walter Musselmann
Juan Valdivia
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 AT83104384T priority Critical patent/ATE20483T1/de
Publication of EP0094022A2 publication Critical patent/EP0094022A2/fr
Publication of EP0094022A3 publication Critical patent/EP0094022A3/de
Application granted granted Critical
Publication of EP0094022B1 publication Critical patent/EP0094022B1/fr
Expired legal-status Critical Current

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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

Definitions

  • the invention relates to a rotor for sorting apparatus according to the preamble of claim 1.
  • a rotor or sorting apparatus is known from US Pat. No. 2,835,173.
  • the sorting profiles formed with the airfoil profiles act in such a way that the risk of the holes becoming blocked or the perforated perforation of the strainer basket being caused by impurities or by fibers or specks which are not small enough means that pulsations generated by them are avoided or reduced to an insignificant level.
  • a significant impediment to the flow in the housing of the sorting apparatus and consequently also the sorting effect on the strainer basket occurs in these devices due to the support arms for the sorting profiles. Spider webs can attach or form on these support arms, which lead to disruptions in the sorting process.
  • the support arms for the sorting profiles have also been designed at least with a profile rounded at the front in the direction of flow.
  • the object of the invention is now to create a rotor in which there is a non-spinning, unimpeded flow through the screen space formed between the sorting profiles.
  • FIGS. 2 to 4 represent views of the rotor according to the invention in other embodiments.
  • the rotor 1 consists of the drum 2, which carries an extension 6 with a central inner bore 7 on at least one end for the purpose of storing the same.
  • the drum has two helical wings 3 and 4 at its upper end and a helical wing 8 at its lower end for holding the sorting profiles 5 designed with wing-shaped cross-sectional profile.
  • the edges 10 of the helical surfaces lying forward in the direction of rotation are expediently rounded, so that they do not form a point of attack for the accumulation of spinning contaminants.
  • the surfaces of the helixes 3 and 4 or 8 are completely smooth, and starting points for spinning contaminants are no longer available.
  • the spiral surfaces transport the fiber suspension, for example, from the upper end of the carrying drum 2 along the screen space formed between the surface of the drum 2 and the radially outer edge of the spiral surfaces 3, 4 and 8, which is radial is to be limited on the outside by a sieve basket. It is therefore no longer absolutely necessary for the sorting profiles 5 to be inclined so that they can produce a conveying component along this sieving space.
  • the helical surface 8 at the end of the sieve space promotes, for example, the fraction enriched with rejects from the sieve space.
  • the accepted material is sorted through the sorting profiles through the screen basket, whereby the wing-shaped design of the cross-sectional profile leads to pressure pulsations on the screen basket, which keep it free of blockages.
  • this rotor designed according to the invention the best possible throughput of the fiber suspension through the screen sorting device is guaranteed without the risk of clogging.
  • a single helical surface 3 '"which extends over the entire drum length is used as a supporting wall for the sorting profiles 5.
  • the sorting profiles which are in themselves relatively shorter, can be offset from one another, as can be seen from the figure.
  • sorting profiles are attached to the outer circumference of the coils, e.g. by welding, their length can be provided regardless of their slope.
  • helical surfaces are provided on both ends of the drum to support the sorting profiles 5. It can now be provided that the sorting profiles are pinned and screwed in position so that the angular position of the wing profile can be changed in relation to the circumferential direction if necessary by changing the pinning. You can even turn a positive position into a negative and therefore overpressure pulsation into negative pressure pulsation.
  • the screw conveyor only remains centrally as a supporting body for the sorting profiles, then either continuously over the screen basket length of the sorter or only at its axial ends, connected by the sorting profiles .
  • the rotor is then also supported according to FIG. 1 via at least one attachment 6.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)
  • Combined Means For Separation Of Solids (AREA)
  • Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Nonwoven Fabrics (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
EP83104384A 1982-05-12 1983-05-04 Rotor pour appareil de classification pour l'épuration de suspensions de fibres, notamment ceux de l'industrie papetière Expired EP0094022B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83104384T ATE20483T1 (de) 1982-05-12 1983-05-04 Rotor fuer sortierapparate zur reinigung von fasersuspensionen, insbesondere solchen der papierindustrie.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3217824 1982-05-12
DE3217824A DE3217824C2 (de) 1982-05-12 1982-05-12 Rotor für Sortierer zur Reinigung von Fasersuspensionen, insbesondere aus Altpapier

Publications (3)

Publication Number Publication Date
EP0094022A2 true EP0094022A2 (fr) 1983-11-16
EP0094022A3 EP0094022A3 (en) 1984-10-24
EP0094022B1 EP0094022B1 (fr) 1986-06-18

Family

ID=6163359

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83104384A Expired EP0094022B1 (fr) 1982-05-12 1983-05-04 Rotor pour appareil de classification pour l'épuration de suspensions de fibres, notamment ceux de l'industrie papetière

Country Status (8)

Country Link
US (1) US4585551A (fr)
EP (1) EP0094022B1 (fr)
JP (1) JPS58203194A (fr)
AT (1) ATE20483T1 (fr)
BR (1) BR8302554A (fr)
DE (1) DE3217824C2 (fr)
ES (1) ES279953Y (fr)
FI (1) FI831642L (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2666598A1 (fr) * 1990-09-10 1992-03-13 Escher Wyss Gmbh Procede de separation, notamment de tri ou de fractionnement d'une suspension de pate a papier.
EP0560753A1 (fr) * 1992-03-13 1993-09-15 A. Ahlstrom Corporation Dispositif pour le traitement de pulpe
EP0638687A1 (fr) * 1993-08-06 1995-02-15 J.M. Voith GmbH Dispositif d'épuration
WO2016019944A1 (fr) * 2014-08-05 2016-02-11 Flottweg Se Vis sans fin d'une centrifugeuse à bol plein

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE443007B (sv) * 1985-03-04 1986-02-10 Kamyr Ab Silanordning
FI77280C (fi) * 1987-10-13 1989-02-10 Ahlstroem Oy Foerfarande och anordning foer behandling av fibersuspension.
US4871449A (en) * 1988-06-27 1989-10-03 Lott W Gerald Clarifier and screw compactor liquid-solid separator
EP0663469A1 (fr) * 1994-01-18 1995-07-19 Voith Sulzer Stoffaufbereitung GmbH Rotor, en particulier pour un tamis de classification
IT1402117B1 (it) * 2010-07-29 2013-08-28 Cassani Metodo e dispositivo per separare particelle di materiali sintetici diversi
CN103447237B (zh) * 2013-02-09 2015-08-26 山东名流餐处装备股份有限公司 餐厨废弃物自动分选装置
US11484818B2 (en) * 2019-02-11 2022-11-01 North Carolina State University Self-cleaning screen

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US523048A (en) * 1894-07-17 Sulfite-fiber separator
US3126818A (en) * 1964-03-31 Pulp press
GB336252A (en) * 1929-07-04 1930-10-06 Siliam Martin Bjerre Improvements in screens
US2835173A (en) * 1955-03-03 1958-05-20 Black Clawson Co Paper machinery
US2983379A (en) * 1958-03-17 1961-05-09 Combined Locks Paper Company Cylindrical paper stock screen
US3235087A (en) * 1962-10-08 1966-02-15 Brown Citrus Machinery Corp Apparatus for separation of liquids from solids
US3247965A (en) * 1963-05-07 1966-04-26 Kimberly Clark Co Vertical centrifugal screen for pulp stock
DE1295344B (de) * 1964-06-12 1969-05-14 Voith Gmbh J M Sichter fuer Fasersuspensionen
US3547267A (en) * 1967-12-27 1970-12-15 Douglas G Sutherland Straining apparatus
US3739915A (en) * 1970-10-02 1973-06-19 Johns Manville Internal pressure precoat filter
US3754658A (en) * 1970-10-19 1973-08-28 H Messing Pulp thickener having two vertical perforated screens with nonmoving spirally wrapped blades therebetween
DE2712715B2 (de) * 1977-03-23 1979-05-23 Hermann Finckh Maschinenfabrik Gmbh & Co, 7417 Pfullingen Sortierer für Fasersuspensionen
DE2850385C2 (de) * 1978-11-21 1981-02-05 J.M. Voith Gmbh, 7920 Heidenheim Vorrichtung zum Ausscheiden von Verunreinigungen aus Faserstoffsuspensionen
US4213823A (en) * 1979-04-26 1980-07-22 Beloit Corporation Paper making machine screen with staggered foils

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2666598A1 (fr) * 1990-09-10 1992-03-13 Escher Wyss Gmbh Procede de separation, notamment de tri ou de fractionnement d'une suspension de pate a papier.
EP0560753A1 (fr) * 1992-03-13 1993-09-15 A. Ahlstrom Corporation Dispositif pour le traitement de pulpe
EP0638687A1 (fr) * 1993-08-06 1995-02-15 J.M. Voith GmbH Dispositif d'épuration
WO2016019944A1 (fr) * 2014-08-05 2016-02-11 Flottweg Se Vis sans fin d'une centrifugeuse à bol plein
US10583443B2 (en) 2014-08-05 2020-03-10 Flottweg Se Screw of a solid bowl screw centrifuge

Also Published As

Publication number Publication date
DE3217824A1 (de) 1983-11-17
FI831642A7 (fi) 1983-11-13
BR8302554A (pt) 1984-01-17
FI831642L (fi) 1983-11-13
US4585551A (en) 1986-04-29
ES279953U (es) 1984-11-16
ES279953Y (es) 1985-06-01
JPS6229556B2 (fr) 1987-06-26
EP0094022B1 (fr) 1986-06-18
FI831642A0 (fi) 1983-05-11
ATE20483T1 (de) 1986-07-15
JPS58203194A (ja) 1983-11-26
EP0094022A3 (en) 1984-10-24
DE3217824C2 (de) 1985-10-24

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