EP0861696B1 - Disk for screen or separator - Google Patents
Disk for screen or separator Download PDFInfo
- Publication number
- EP0861696B1 EP0861696B1 EP98103257A EP98103257A EP0861696B1 EP 0861696 B1 EP0861696 B1 EP 0861696B1 EP 98103257 A EP98103257 A EP 98103257A EP 98103257 A EP98103257 A EP 98103257A EP 0861696 B1 EP0861696 B1 EP 0861696B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- disc
- corners
- corner
- disc body
- separator
- 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.)
- Expired - Lifetime
Links
Images
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
- B07B1/12—Apparatus having only parallel elements
- B07B1/14—Roller screens
- B07B1/15—Roller screens using corrugated, grooved or ribbed rollers
Definitions
- the invention relates to a disc for a disc screen or a disc separator, which several in parallel in a frame arranged, rotatably drivable shafts on which several such disks on gap and interlocking are arranged, with a disc body, the one as Polygon with an even number of corners designed circumference, two side faces and one of the number of corners of the polygon has a corresponding number of partial areas on the circumference and consists of an iron material, being in the direction of the circumference of the window body every second corner with a scraper is provided, at least on one side over one of the side surfaces protrudes from the disc body.
- Such disc sieves or disc separators are particularly suitable for separating difficult to screen Masses. They are high compared to other seven Capacity in relation to their size.
- DE 44 30 682 A1 shows a disc sieve with decagonal discs an improved disintegration of the screenings takes place. On cohesive screenings have a tendency to stick to the discs or to fix and build on the shaft hubs. To do this prevent wipers are provided.
- the polygonal version The washer is required to put the good on the washer continue to transport towards the next slices. The window corners also ensure that a cheap Unlocking takes place. Due to the rapidly rotating decagonal Discs, the mass to be treated is swirled, causing there is a large increase in volume.
- Soils become a favorable prerequisite for inclusion of means achieved, for example, the length of stay of To significantly reduce land on rents for treatment.
- disc sieves or separators be used to develop a certain grain size.
- the swirling also ensures that a good mixing effect is achieved.
- the disadvantage is that the corners are wear quickly, depending on the material to be processed is. This means high maintenance costs and downtimes or a deterioration in functionality.
- the invention is therefore based on the object of a disc to propose for a disk sieve or a disk separator, which is suitable even for a long service life to ensure the desired mode of operation, i.e. where the Original geometry is retained over a long period of time.
- the wipers at least partially consist of a hard metal and that the disc body in the area of not using scrapers provided corners has recesses in which plate elements are made of hard metal, which enclose the corners and each starting from a corner over a partial length the subsequent one and towards those occupied with wipers Extend corner partial areas.
- a favorite Tungsten carbide comes with 80 to 90% tungsten carbite and with cobalt or nickel binder in question.
- a disc sieve or a disc separator and an embodiment a disc are schematic in the drawing shown and explained in more detail using the same.
- the disc sieve or the disc separator according to FIG. 1 and 2 comprises a frame 1, in which waves at a parallel distance 2 are rotatably arranged.
- the waves 2 each carry Disks 3 standing on gap held by spacer sleeves are.
- the discs 3 are non-rotatable with the associated Waves 2 connected.
- the discs of two neighboring ones Waves interlock in the gaps between two one Shaft assigned discs 3.
- the discs 3 are polygonal are.
- the disks 3 each have several Corners scraper 5 on at least one of their side surfaces protrude. These are used on the side surfaces to strip off the adhering discs 3 adhering material.
- the shafts 2 are driven in rotation by a drive 4. Chain or belt drives, for example, through the forced synchronization of the rotation the waves 2 are generated with each other, so that the Side surfaces protruding stripper 5 are not mutually can touch.
- the disks 3 turn in one direction driven so that the goods from one task end, for example located in the area on the right of frame 1 Wave in the direction of the last one arranged on the left of the frame Wave due to the polygonal design of the discs transported and opened up and screened in this way is so that it is through the gaps between the interlocking Slices 3 can fall.
- FIG. 3 shows a disk 3 'for use in a disk separator or a disc sieve according to FIGS. 1 and 2, the disc body 6 is formed on the circumference of a decagon is, ie has ten corners 8, between each of which partial areas 9 are arranged. One of the side faces is recognizable and designated 10. In the center of the disc body 6 an opening 7 is arranged, with which the disc 3 'rotatably on one of the shafts of the disc sieve or disc separator can be set.
- Corners 8 It is an even number of Corners 8 provided. An even number is correspondingly of ten partial areas 9 available. Seen over the scope, is every second corner 8 is provided with a scraper 5, which at least from the partial area 10, i.e. protrudes from the drawing level. Such wipers 5 can, for example, at least themselves partially consist of a hard metal. In the field of corners 8 not occupied by scrapers 5 are in the pane body 6 recesses exist in which plate elements 11 from Tungsten carbide are used, which include the corners 8 and themselves each starting from a corner 8 over a partial length of the subsequent and in the direction of the wipers 5 Corners 8 extending partial areas 9 extend.
- the plate elements 11 have essentially the thickness of the disc body 6 and are with this by a solder or the like Means indissolubly linked. It’s enough for some use cases if of the two partial areas each belonging to a corner 8 9 only one is provided with a plate element 11, which includes corner 8.
Abstract
Description
Die Erfindung betrifft eine Scheibe für ein Scheibensieb oder einen Scheibenseparator, welches mehrere parallel in einem Gestell angeordnete, drehfest antreibbare Wellen aufweist, auf denen mehrere solcher Scheiben auf Lücke und ineinandergreifend angeordnet sind, mit einem Scheibenkörper, der einen als Vieleck mit einer geraden Anzahl von Ecken gestalteten Umfang, zwei Seitenflächen und eine der Anzahl der Ecken des Vieleckes entsprechende Anzahl von Teilflächen am Umfang aufweist und aus einem Eisenwerkstoff besteht, wobei in Richtung des Umfangs des Scheibenkörpers jede zweite Ecke mit einem Abstreifer versehen ist, der mindestens einseitig über eine der Seitenflächen des Scheibenkörpers vorsteht.The invention relates to a disc for a disc screen or a disc separator, which several in parallel in a frame arranged, rotatably drivable shafts on which several such disks on gap and interlocking are arranged, with a disc body, the one as Polygon with an even number of corners designed circumference, two side faces and one of the number of corners of the polygon has a corresponding number of partial areas on the circumference and consists of an iron material, being in the direction of the circumference of the window body every second corner with a scraper is provided, at least on one side over one of the side surfaces protrudes from the disc body.
Solche Scheibensiebe oder Scheibenseparatoren (DE 44 08 903 A1) eignen sich insbesondere zum Trennen schwer siebfähiger Massen. Sie weisen, verglichen mit anderen Sieben, eine hohe Kapazität im Verhältnis zu ihrer Baugröße auf. Die DE 44 30 682 A1 zeigt ein Scheibensieb mit zehneckigen Scheiben, durch die eine verbesserte Aufschließung des Siebgutes erfolgt. Ein bindiges Siebgut hat die Tendenz, sich an den Scheiben oder auf den Wellennaben festzusetzen und aufzubauen. Um dies zu verhindern, sind Abstreifer vorgesehen. Die vieleckige Ausführung der Scheiben ist erforderlich, um das Gut auf den Scheiben weiter in Richtung der nächsten Scheiben zu transportieren. Die Scheibenecken sorgen auch dafür, daß eine günstige Aufschließung erfolgt. Durch die schnell rotierenden zehneckigen Scheiben wird die zu behandelnde Masse verwirbelt, wodurch eine starke Volumenvergrößerung entsteht. Bei der Behandlung von Böden wird so eine günstige Voraussetzung für die Aufnahme von Mitteln erzielt, um beispielsweise die Verweildauer des Bodens auf Mieten zur Behandlung wesentlich zu reduzieren. Darüber hinaus können solche Scheibensiebe bzw. -separatoren genutzt werden, um eine bestimmte Korngröße zu erschließen. Die Verwirbelung sorgt auch dafür, daß ein guter Mischeffekt erzielt wird. Von Nachteil ist jedoch, daß die Ecken sich schnell abnutzen, je nachdem was für ein Material zu verarbeiten ist. Dies bedeutet hohe Wartungskosten und Stillstandszeiten bzw. eine Verschlechterung der Funktionsweise.Such disc sieves or disc separators (DE 44 08 903 A1) are particularly suitable for separating difficult to screen Masses. They are high compared to other seven Capacity in relation to their size. DE 44 30 682 A1 shows a disc sieve with decagonal discs an improved disintegration of the screenings takes place. On cohesive screenings have a tendency to stick to the discs or to fix and build on the shaft hubs. To do this prevent wipers are provided. The polygonal version The washer is required to put the good on the washer continue to transport towards the next slices. The window corners also ensure that a cheap Unlocking takes place. Due to the rapidly rotating decagonal Discs, the mass to be treated is swirled, causing there is a large increase in volume. During treatment Soils become a favorable prerequisite for inclusion of means achieved, for example, the length of stay of To significantly reduce land on rents for treatment. In addition, such disc sieves or separators be used to develop a certain grain size. The swirling also ensures that a good mixing effect is achieved. The disadvantage, however, is that the corners are wear quickly, depending on the material to be processed is. This means high maintenance costs and downtimes or a deterioration in functionality.
Der Erfindung liegt daher die Aufgabe zugrunde, eine Scheibe für ein Scheibensieb oder einen Scheibenseparator vorzuschlagen, welche geeignet ist, auch für eine lange Nutzungsdauer die gewünschte Arbeitsweise zu gewährleisten, d.h. bei der die Ursprungsgeometrie über einen großen Zeitraum erhalten bleibt.The invention is therefore based on the object of a disc to propose for a disk sieve or a disk separator, which is suitable even for a long service life to ensure the desired mode of operation, i.e. where the Original geometry is retained over a long period of time.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst daß die Abstreifer zumindest teilweise aus einem Hartmetall bestehen und daß der Scheibenkörper im Bereich der nicht mit Abstreifern versehenen Ecken Ausnehmungen aufweist, in welche Plattenelemente aus Hartmetall eingesetzt sind, die die Ecken umfassen und sich jeweils ausgehend von einer Ecke über eine Teillänge der anschließenden und in Richtung auf die mit Abstreifern besetzten Ecken verlaufenden Teilflächen erstrecken. Als bevorzugtes Hartmetall kommt ein solches mit 80 bis 90 % Wolframcarbit und mit Kobalt- oder Nickelbinder in Frage.This object is achieved in that the wipers at least partially consist of a hard metal and that the disc body in the area of not using scrapers provided corners has recesses in which plate elements are made of hard metal, which enclose the corners and each starting from a corner over a partial length the subsequent one and towards those occupied with wipers Extend corner partial areas. As a favorite Tungsten carbide comes with 80 to 90% tungsten carbite and with cobalt or nickel binder in question.
Von Vorteil ist, daß die Ecken über eine lange Lebensdauer ausgeprägt erhalten bleiben, da das Hartmetall gegen Abtragung weitgehend resistent ist. Damit bleibt auch über eine lange Lebensdauer ein guter Durchmischungseffekt beim Einsatz gewährleistet.The advantage is that the corners have a long life remain pronounced because the hard metal prevents erosion is largely resistant. This also stays for a long time Lifespan ensures a good mixing effect during use.
Ein Scheibensieb bzw. ein Scheibenseparator und eine Ausführungsformen einer Scheibe sind in der Zeichnung schematisch dargestellt und anhand derselben näher erläutert.A disc sieve or a disc separator and an embodiment a disc are schematic in the drawing shown and explained in more detail using the same.
- Figur 1Figure 1
- eine Draufsicht auf ein Scheibensieb bzw. einen Scheibenseparator,a plan view of a disc screen or a disc separator,
- Figur 2Figure 2
- eine Seitenansicht zu Figur 1,2 shows a side view of FIG. 1,
- Figur 3Figure 3
- eine Ausführungsform einer Scheibe mit Plattenelementen aus Hartmetall als Panzerung.an embodiment of a disc with Plate elements made of hard metal as armor.
Das Scheibensieb bzw. der Scheibenseparator gemäß Figuren 1
und 2 umfaßt ein Gestell 1, in dem im parallelen Abstand Wellen
2 drehbar angeordnet sind. Die Wellen 2 tragen jeweils
Scheiben 3, die auf Lücke stehend durch Abstandshülsen gehalten
sind. Die Scheiben 3 sind drehfest mit den zugehörigen
Wellen 2 verbunden. Die Scheiben jeweils zweier benachbarter
Wellen greifen gegenseitig in die Lücken zwischen zwei einer
Welle zugeordneten Scheiben 3 ein.The disc sieve or the disc separator according to FIG. 1
and 2 comprises a frame 1, in which waves at a
Aus Figur 2 ist ersichtlich, daß die Scheiben 3 mehreckig ausgebildet
sind. Die Scheiben 3 weisen jeweils im Bereich mehrerer
Ecken Abstreifer 5 auf, die zumindest von einer ihrer Seitenflächen
vorstehen. Diese dienen dazu, an den Seitenflächen
der gegenüberliegenden Scheiben 3 anhaftendes Gut abzustreifen.
Die Wellen 2 werden durch einen Antrieb 4 drehend angetrieben.
Hierzu dienen beispielsweise Ketten- oder Riementriebe,
durch die zwangsweise eine Synchronisierung der Rotation
der Wellen 2 untereinander erzeugt wird, damit die von den
Seitenflächen vorstehenden Abstreifer 5 sich nicht gegenseitig
berühren können. Die Scheiben 3 werden in einer Richtung drehend
angetrieben, so daß das Gut von einem Aufgabeende, beispielsweise
im Bereich der rechts am Gestell 1 angeordneten
Welle in Richtung der links am Gestell angeordneten letzten
Welle hin aufgrund der mehreckigen Ausführung der Scheiben
transportiert und auf diesem Wege aufgeschlossen und gesiebt
wird, so daß es durch die Lücken zwischen den ineinandergreifenden
Scheiben 3 fallen kann.From Figure 2 it can be seen that the
Um den Verschleiß bzw. die Wirkung der Ecken der Scheiben 3
über eine lange Zeit aufrechtzuerhalten, sind die Scheiben 3
im Bereich der Ecken und ihrer daran angrenzenden Flächen zumindest
teilweise mit einer Panzerung versehen, die aus den
Figuren 1 und 2 nicht ersichtlich ist, anhand der Figure 3
jedoch näher erläutert ist.
Figur 3 zeigt eine Scheibe 3' für den Einsatz in einem Scheibenseparator
bzw. einem Scheibensieb gemäß Figuren 1 und 2,
dessen Scheibenkörper 6 auf dem Umfang zehneckig ausgebildet
ist, also zehn Ecken 8 besitzt, zwischen denen jeweils Teilflächen
9 angeordnet sind. Eine der Seitenflächen ist erkennbar
und mit 10 bezeichnet. Im Zentrum des Scheibenkörpers 6
ist ein Durchbruch 7 angeordnet, mit dem die Scheibe 3' drehfest
auf einer der Wellen des Scheibensiebes bzw. Scheibenseparators
festgelegt werden kann. Es ist eine gerade Anzahl von
Ecken 8 vorgesehen. Entsprechend ist auch eine gerade Anzahl
von zehn Teilflächen 9 vorhanden. Über den Umfang gesehen, ist
jede zweite Ecke 8 mit einem Abstreifer 5 versehen, der zumindest
von der Teilfläche 10, d.h. aus der Zeichenebene vorsteht.
Solche Abstreifer 5 können beispielsweise selbst zumindest
teilweise aus einem Hartmetall bestehen. Im Bereich der
nicht mit Abstreifern 5 besetzten Ecken 8 sind im Scheibenkörper
6 Ausnehmungen vorhanden, in welche Plattenelemente 11 aus
Hartmetall eingesetzt sind, die die Ecken 8 umfassen und sich
jeweils ausgehend von einer Ecke 8 über eine Teillänge der anschließenden
und in Richtung auf die mit Abstreifern 5 besetzten
Ecken 8 verlaufenden Teilflächen 9 erstrecken. Die Plattenelemente
11 haben im wesentlichen die Dicke des Scheibenkörpers
6 und sind mit diesem durch ein Lot oder dergleichen
Mittel unlösbar verbunden. Es genügt für einige Anwendungsfälle,
wenn von den jeweils zu einer Ecke 8 gehörenden zwei Teilflächen
9 nur eine mit einem Plattenelement 11 versehen ist,
welches die Ecke 8 einschließt.To the wear or the effect of the corners of the
Für eine Ausbildung der Scheibe 3' ohne Abstreifer 5 ist es
auch möglich, sämtliche Ecken 8 mit einer Panzerung in Form
der Plattenelemente 11 zu versehen. Darüber hinaus besteht
auch die Möglichkeit, die Plattenelemente 11 so weit zu führen,
daß sie sich über die gesamten Teilflächen 9 erstrecken
bzw. für den Fall, daß Abstreifer 5 vorhanden sind, bis zu
diesen reichen.For a formation of the disc 3 'without a
Claims (1)
- A disc (3, 3') for a disc sieve or a disc separator which comprises a plurality of shafts which are arranged in parallel in a frame (1), which are drivable in a rotationally fast way and on which there is arranged a plurality of such discs (3, 3') so as to be staggered and so as to engage one another, having a disc body (6) which comprises a polygonal circumference with an even number of corners (8), two side faces (10) and a number of partial faces (9) at the circumference, which number corresponds to the number of corners (8) of the polygon (1), wherein, in the direction of the circumference of the disc body (6), each second corner (8) is provided with a stripping device (5) which, at least at one end, projects beyond one of the side faces (10) of the disc body (6),
characterised in that the stripping device (5) consists at least partially of a hard metal and
that, in the region of the corners (8) not provided with stripping devices (5), the disc body (6) comprises recesses into which there are inserted hard metal plate elements (11) which comprise the corners (8) and which, starting from a corner (8), extend over a partial length of the adjoining partial faces (9) extending towards the corners (8) occupied by stripping devices (5).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19707845 | 1997-02-27 | ||
| DE19707845A DE19707845C2 (en) | 1997-02-27 | 1997-02-27 | Disc for a disc sieve or a disc separator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0861696A1 EP0861696A1 (en) | 1998-09-02 |
| EP0861696B1 true EP0861696B1 (en) | 2003-05-07 |
Family
ID=7821640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP98103257A Expired - Lifetime EP0861696B1 (en) | 1997-02-27 | 1998-02-25 | Disk for screen or separator |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0861696B1 (en) |
| AT (1) | ATE239557T1 (en) |
| DE (1) | DE19707845C2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4201535A1 (en) | 2021-12-21 | 2023-06-28 | Sandvik SRP AB | Disc, spacer and transportation assembly |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19856197A1 (en) * | 1998-12-05 | 2000-06-08 | Asea Brown Boveri | Sieve conveyor grate |
| DE10338645B4 (en) * | 2003-08-22 | 2007-04-12 | Jan Kuclo | Disc sieve or separator |
| CA2812116C (en) | 2009-07-24 | 2013-12-24 | Suncor Energy Inc. | Screening disk, roller, and roller screen for screening an ore feed |
| DE102010049977A1 (en) * | 2010-10-18 | 2011-12-22 | Lechler Gmbh | High pressure nozzle i.e. descaling nozzle, for descaling steel products, has nozzle body's hard metal sections provided with wear reducing and/or chemical resistance coating at surfaces, which come into contact with fluid to be sprayed |
| DE102011123053B3 (en) * | 2011-06-07 | 2017-03-09 | Kompoferm Gmbh | Screening device and screening machine with at least one screening device |
| DE102011104860B4 (en) | 2011-06-07 | 2017-02-02 | Kompoferm Gmbh | screening machine |
| EP2671648A1 (en) * | 2012-06-04 | 2013-12-11 | Bollegraaf Patents and Brands B.V. | Rotor body for a sorting screen apparatus for sorting waste |
| EP3965958B1 (en) * | 2019-05-10 | 2023-12-06 | Sandvik SRP AB | Disc, spacer and transportation assembly |
| CN117654869A (en) * | 2022-08-31 | 2024-03-08 | 安阳市恒威石化设备有限责任公司 | Staggered mutual-impact type self-cleaning screening device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3437983C1 (en) * | 1984-10-17 | 1986-03-20 | Eisen- und Stahlwerk Pleissner GmbH, 3420 Herzberg | Method for applying a metallic protective film onto a metallic substrate |
| DE3803621C1 (en) * | 1988-02-06 | 1989-04-20 | Joest Gmbh + Co Kg, 4400 Muenster, De | Method for coating metallic conveying surfaces in vibrating conveyors or vibrating screens |
| US5012933A (en) * | 1988-02-12 | 1991-05-07 | Acrowood Corporation | Machine and method for sorting out over-thick wood chips |
| DE4408903A1 (en) * | 1994-03-16 | 1995-09-21 | Ernst Josef Kronenberger | Sieve for processing of excavated materials esp. clay |
| DE4430682A1 (en) * | 1994-08-30 | 1996-03-07 | Ernst Josef Kronenberger | Disc sieve |
-
1997
- 1997-02-27 DE DE19707845A patent/DE19707845C2/en not_active Expired - Fee Related
-
1998
- 1998-02-25 AT AT98103257T patent/ATE239557T1/en not_active IP Right Cessation
- 1998-02-25 EP EP98103257A patent/EP0861696B1/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4201535A1 (en) | 2021-12-21 | 2023-06-28 | Sandvik SRP AB | Disc, spacer and transportation assembly |
| WO2023117628A1 (en) | 2021-12-21 | 2023-06-29 | Sandvik Srp Ab | Disc, spacer and transportation assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| ATE239557T1 (en) | 2003-05-15 |
| EP0861696A1 (en) | 1998-09-02 |
| DE19707845C2 (en) | 1999-03-11 |
| DE19707845A1 (en) | 1998-09-03 |
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