DE3911234A1 - Screen - Google Patents

Screen

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Publication number
DE3911234A1
DE3911234A1 DE19893911234 DE3911234A DE3911234A1 DE 3911234 A1 DE3911234 A1 DE 3911234A1 DE 19893911234 DE19893911234 DE 19893911234 DE 3911234 A DE3911234 A DE 3911234A DE 3911234 A1 DE3911234 A1 DE 3911234A1
Authority
DE
Germany
Prior art keywords
rotor
housing
rotation
screen
sieve
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.)
Ceased
Application number
DE19893911234
Other languages
German (de)
Inventor
Reimund Rienecker
Klaus Schmidt
Paul Bezler
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 DE19893911234 priority Critical patent/DE3911234A1/en
Publication of DE3911234A1 publication Critical patent/DE3911234A1/en
Ceased legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING 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
    • B07B1/00Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/18Drum screens
    • B07B1/20Stationary drums with moving interior agitators
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21DTREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
    • D21D5/00Purification of the pulp suspension by mechanical means; Apparatus therefor
    • D21D5/02Straining or screening the pulp
    • D21D5/023Stationary screen-drums
    • D21D5/026Stationary screen-drums with rotating cleaning foils

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)

Abstract

The screen, especially a pressure screen for fibrous suspensions, has a supply channel 2 in the housing 1, which is arranged in the centre radially or tangentially in the housing 1 and specifically in the latter case in a direction opposite to the direction of rotation of the rotor 4. By this means, the throughput of the screen is increased in comparison with previous arrangements. <IMAGE>

Description

Die Erfindung betrifft einen Sortierer entsprechend dem Oberbe­ griff des Patentanspruchs 1. Solche Sortierer sind bekanntgewor­ den z.B. aus US 37 26 401, US 36 80 696 und Zeitschrift "Das Papier", 1974, Seiten 281 ff, insbesondere Seite 282, Abb. 1.The invention relates to a sorter according to the Oberbe handle of claim 1. Such sorters have become known e.g. from US 37 26 401, US 36 80 696 and magazine "Das Papier ", 1974, pages 281 ff, in particular page 282, Fig. 1.

Alle diese Sortierer haben eine Einströmung tangential zum Ge­ häuse, in Drehrichtung des Rotors.All of these sorters have an inflow tangential to Ge housing, in the direction of rotation of the rotor.

Die Aufgabe der Erfindung ist es, den Durchsatz eines solchen Sortierers, insbesondere Drucksortierers, zu verbessern.The object of the invention is the throughput of such Sorters, especially pressure sorters to improve.

Diese Aufgabe wird erfindungsgemäß bei einem Sortierer der ein­ gangs genannten Art durch die Merkmale des kennzeichnenden Teils des Patentanspruchs 1 gelöst.This object is achieved according to the invention in a sorter gangs mentioned by the characteristics of the characteristic part of claim 1 solved.

Erfindungsgemäß hat man erkannt, daß eine nicht in Drehrichtung des Rotors erfolgende Einströmung der Suspension in das Sortie­ rergehäuse für den Durchsatz günstig ist. Die herkömmliche Mei­ nung war, daß grundsätzlich eine Einströmung im Sinne der Rotor­ drehrichtung für den Durchsatz durch den Sortierer als günstig anzusehen wäre. Dies hat sich jedoch als ein Irrtum heraus­ gestellt.According to the invention, it has been recognized that one is not in the direction of rotation flow of the suspension into the sortie rergehäuse for the throughput is favorable. The conventional mei Was that basically an inflow in the sense of the rotor Direction of rotation for throughput through the sorter as cheap would be seen. However, this has proven to be a mistake posed.

Nachfolgend wird die Erfindung anhand der beiden in der Zeich­ nung dargestellten Ausführungsbeispiele erläutert, die jeweils Querschnitte durch einen erfindungsgemäßen Sortierer zeigen.The invention based on the two in the drawing tion illustrated embodiments, each Show cross sections through a sorter according to the invention.

Den Stand der Technik zeigen die Einströmkanäle 2′, Gutstoffaus­ laßkanal 10′ gemäß Drehrichtung 21 nach Fig. 1.The prior art show the inflow channels 2 ', Gutstoffaus laßkanal 10 ' according to the direction of rotation 21 of FIG. 1st

Die anderen Figuren zeigen Querschnitte durch ein Sortiererge­ häuse 1′ für einen Siebsortierer, der mit einem im allgemeinen zylindrischen Siebkorb 3 bzw. einen rotationssymmetrischen Sieb versehen ist und als Drucksortierer betrieben wird, d.h. daß Suspension in dem Gehäuse gegenüber der Atmosphäre unter Über­ druck steht und somit vollständig mit Suspension gefüllt ist.The other figures show cross sections through a sorting housing 1 'for a sieve sorter which is provided with a generally cylindrical sieve basket 3 or a rotationally symmetrical sieve and is operated as a pressure sorter, ie that the suspension in the housing is under excess pressure from the atmosphere and is thus completely filled with suspension.

Dabei ist gemäß Fig. 2 der Zulaufkanal 2 tangential an das Ge­ häuse 1 angeschlossen, das dem zylindrischen Siebkorb 3 und den darin angeordneten Rotor 4 mit an einer Rotortrommel 16 be­ festigten Sortierelementen 7 umgibt, die in einem Siebraum 5 vornehmlich durch Druckpulsationen die Sortierung bewirken. Da­ bei ist die durch den Pfeil angegebene Drehrichtung des Rotors 4 entgegen dem tangentialen Zulauf im Zulaufkanal 2 vorgesehen.In this case 2, the inlet channel 2 tangential to the Ge housing 1 is shown in FIG. Connected which surrounds the cylindrical screen basket 3 and the rotor disposed therein 4 to be on a rotor drum 16 strengthened sorting elements 7, which primarily effect in a screen room 5 by pressure pulsations sorting . Since at the direction of rotation of the rotor 4 indicated by the arrow is provided against the tangential inlet in the inlet channel 2 .

Gemäß Fig. 3 ist der Zulaufkanal 2′′ mittig radial zum Gehäuse 1′ angeordnet. Hierbei spielt natürlich die Drehrichtung des Rotors 4 keine Rolle.Referring to FIG. 3, the inlet channel 2 '' is arranged in the center radially of the housing 1 '. Of course, the direction of rotation of the rotor 4 plays no role here.

Der günstige Effekt beruht wahrscheinlich darauf, daß über einen längeren Zeitraum, d.h. über einen längeren axial gesehenen Be­ reich des Siebkorbes die Pulsationen, die von den Sortierelemen­ ten 7 erzeugt werden, besser zur Wirkung, d.h. Einwirkung auf die zu sortierenden Partikel kommen.The favorable effect is probably due to the fact that over a longer period of time, ie over a longer axially viewed area of the strainer basket, the pulsations that are generated by the sorting elements 7 have a better effect, that is to say action on the particles to be sorted.

Da mit der Zeit, d.h. im Verlauf der Strömung der Suspension im Gehäuse 1 in axialer Richtung desselben, die Suspension doch eine große Geschwindigkeitskomponente in Umfangsrichtung, d.h. in Drehrichtung des Rotors 4 annimmt, ist es energiemäßig gün­ stig, den Auslaßkanal 9 für den Überlauf tangential, aber in Rotordrehrichtung, wie dargestellt, anzuordnen.Since with the time, ie in the course of the flow of the suspension in the housing 1 in the same axial direction, the suspension nevertheless assumes a large speed component in the circumferential direction, ie in the direction of rotation of the rotor 4 , it is energetically gün stig, the outlet channel 9 tangentially for the overflow , but to be arranged in the direction of rotation of the rotor as shown.

Der Auslaß 10 für den Durchlauf (Gutstoff) kann - wie üblich - mittig radial wie der Einlauf in Fig. 2 angeordnet werden.The outlet 10 for the passage (accept material) can - as usual - be arranged radially in the center like the inlet in FIG. 2.

Die Maschine wird hauptsächlich vertikal - also mit vertikaler Rotordrehachse - und nicht - wie in Fig. 1 dargestellt - hori­ zontal aufgestellt.The machine is mainly set up vertically - that is, with a vertical rotor axis of rotation - and not - as shown in FIG. 1 - horizontally.

Claims (2)

1. Sortierer mit rotationssymmetrischem Sieb, an dessen Mantel­ fläche von einem Rotor Sortierelemente (Pulsationselemente) entlangführbar sind, insbesondere für Fasersuspensionen, dadurch gekennzeichnet, daß der Zulaufkanal (2) der Suspen­ sion in das das Sieb (3) und den Rotor aufnehmende Gehäuse (1) tangential entgegen der Rotordrehrichtung oder seitlich mittig und radial zum Gehäuse (1) bzw. Sieb (3) oder Rotor (4) vorgesehen ist.1. Sorter with a rotationally symmetrical sieve, on the outer surface of which a rotor sorting elements (pulsation elements) can be guided, in particular for fiber suspensions, characterized in that the inlet channel ( 2 ) of the suspension in the sieve ( 3 ) and the rotor receiving housing ( 1 ) is provided tangentially against the direction of rotation of the rotor or laterally in the center and radially to the housing ( 1 ) or sieve ( 3 ) or rotor ( 4 ). 2. Sortierer nach Anspruch 1, dadurch gekennzeichnet, daß der Auslaßkanal (5) für den Überlaufanteil des Gehäuses (1) ent­ gegengesetzt tangential, also in der Drehrichtung des Rotors vorgesehen ist.2. Sorter according to claim 1, characterized in that the outlet channel ( 5 ) for the overflow portion of the housing ( 1 ) ent opposite tangential, that is provided in the direction of rotation of the rotor.
DE19893911234 1989-04-07 1989-04-07 Screen Ceased DE3911234A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19893911234 DE3911234A1 (en) 1989-04-07 1989-04-07 Screen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19893911234 DE3911234A1 (en) 1989-04-07 1989-04-07 Screen

Publications (1)

Publication Number Publication Date
DE3911234A1 true DE3911234A1 (en) 1990-10-11

Family

ID=6378043

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19893911234 Ceased DE3911234A1 (en) 1989-04-07 1989-04-07 Screen

Country Status (1)

Country Link
DE (1) DE3911234A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004025149A1 (en) * 2004-05-21 2005-12-15 Voith Paper Patent Gmbh Pressure sorted for sieving a pulp suspension
WO2008119880A1 (en) 2007-03-30 2008-10-09 Advanced Fiber Technologies (Aft) Oy Rotor element and a rotor for a screening apparatus
CN103721929A (en) * 2013-11-25 2014-04-16 安徽赛耐尔机械制造有限公司 Roller-type self-adjusting polycrystalline silicon vibrating screening device
CN105970713A (en) * 2016-07-05 2016-09-28 李�昊 Screening fluffer

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1856176A (en) * 1928-09-06 1932-05-03 Edward J Trimbey Method of and apparatus for screening paper pulp
DE1761600A1 (en) * 1967-06-14 1971-09-02 Lamort E & M Device for sifting pulp suspensions, in particular pulp for paper mills
US3680696A (en) * 1970-03-23 1972-08-01 Bird Machine Co Screening
US3726401A (en) * 1970-12-16 1973-04-10 Bird Machine Co Screening machine
GB1378547A (en) * 1972-02-03 1974-12-27 Yhtyneet Paperitehtaat Oy Straining device
US4447320A (en) * 1981-01-23 1984-05-08 E Et M Lamort Device for cleaning and recovering paper pulp

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1856176A (en) * 1928-09-06 1932-05-03 Edward J Trimbey Method of and apparatus for screening paper pulp
DE1761600A1 (en) * 1967-06-14 1971-09-02 Lamort E & M Device for sifting pulp suspensions, in particular pulp for paper mills
US3680696A (en) * 1970-03-23 1972-08-01 Bird Machine Co Screening
US3726401A (en) * 1970-12-16 1973-04-10 Bird Machine Co Screening machine
GB1378547A (en) * 1972-02-03 1974-12-27 Yhtyneet Paperitehtaat Oy Straining device
US4447320A (en) * 1981-01-23 1984-05-08 E Et M Lamort Device for cleaning and recovering paper pulp

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DE-Z.: Das Papier, 1984, 7, S. 281-288 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004025149A1 (en) * 2004-05-21 2005-12-15 Voith Paper Patent Gmbh Pressure sorted for sieving a pulp suspension
WO2008119880A1 (en) 2007-03-30 2008-10-09 Advanced Fiber Technologies (Aft) Oy Rotor element and a rotor for a screening apparatus
CN103721929A (en) * 2013-11-25 2014-04-16 安徽赛耐尔机械制造有限公司 Roller-type self-adjusting polycrystalline silicon vibrating screening device
CN105970713A (en) * 2016-07-05 2016-09-28 李�昊 Screening fluffer

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