DE3911234A1 - Screen - Google Patents
ScreenInfo
- 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
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)
- Paper (AREA)
Abstract
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)
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)
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)
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 |
-
1989
- 1989-04-07 DE DE19893911234 patent/DE3911234A1/en not_active Ceased
Patent Citations (6)
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)
Title |
---|
DE-Z.: Das Papier, 1984, 7, S. 281-288 * |
Cited By (4)
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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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
8131 | Rejection |