EP0509252B1 - Apparatus for separating bulk materials of differing hardness values - Google Patents
Apparatus for separating bulk materials of differing hardness values Download PDFInfo
- Publication number
- EP0509252B1 EP0509252B1 EP92104497A EP92104497A EP0509252B1 EP 0509252 B1 EP0509252 B1 EP 0509252B1 EP 92104497 A EP92104497 A EP 92104497A EP 92104497 A EP92104497 A EP 92104497A EP 0509252 B1 EP0509252 B1 EP 0509252B1
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- EP
- European Patent Office
- Prior art keywords
- drum
- bulk material
- plate
- feed plate
- parts
- 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.)
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Classifications
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- 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
- B07B13/00—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices
- B07B13/10—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices using momentum effects
- B07B13/11—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices using momentum effects involving travel of particles over surfaces which separate by centrifugal force or by relative friction between particles and such surfaces, e.g. helical sorters
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- 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
- B07B13/00—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices
- B07B13/003—Separation of articles by differences in their geometrical form or by difference in their physical properties, e.g. elasticity, compressibility, hardness
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- 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
- B07B13/00—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices
- B07B13/14—Details or accessories
- B07B13/16—Feed or discharge arrangements
Definitions
- the invention relates to a device for separating bulk material parts of different hardness, in particular waste parts, which consists of a drum rotating around a horizontal axis and a feed plate arranged above it, from which the bulk material in a loosened form at a distance from the vertical plane passing through the drum axis the upward-moving side of the drum arrives in such a way that soft parts of the bulk material are carried along by it from the drum to the downward-moving side of the drum and hard parts on the upward-moving side of the drum fall down, with a feed device for the bulk material is provided in such a way that the bulk material hits the feed plate at a speed which is dimensioned such that the harder parts reach the drum at a greater distance from the vertical plane passing through the drum axis than the softer part as a result of stronger rebound e.
- the object of the invention is to provide a device which brings about a much better separation of the different parts and, in particular, easily leads misguided soft parts onto the right path, for which purpose known devices require a complex series connection of several devices of the same type ( EP-B1 01 82 892).
- an approximately radial to Drum-facing locking plate is arranged with a soft surface layer, which is provided to avoid rebounding of the soft parts.
- the roughness is e.g. achieved in that the surface of the feed plate is provided with horizontally extending sawtooth-like ribs in cross section, so that there is a good grip with the impacting waste parts.
- a similarly good effect is achieved if the feed plate is provided with a layer of coarse quartz sand, which can be done using a suitable adhesive.
- the impact velocity suitable for the separation of the parts connected to one another can be achieved by appropriate choice of the drop height.
- the feed plate can be adjusted in a known manner with regard to its inclination and its position relative to the vertical plane passing through the drum axis.
- the locking plate provided according to the invention can also form the bottom of a box open towards the feed plate. Then garbage parts collect in it, which serve as a soft surface layer of the locking plate.
- the locking plate can be adjusted in the circumferential and radial directions relative to the drum.
- the separation effect can be influenced in a known manner by air currents.
- this is preferably done in that an air flow is generated which comes from the inner edge of the locking plate or the locking box, i.e. through the gap between one of these parts and the drum shell, is directed obliquely against the feed plate.
- the air flow keeps the softer and generally lighter parts of the waste near the feed plate more than the harder and heavier ones, so that they are also better carried upwards by the drum.
- This effect can be further enhanced if, in the case of a cascade-shaped feed plate, the air flow is given the opportunity to pass between the partial surfaces of the feed plate on its rear side.
- Adjustable baffles and regulating flaps can be provided to influence the direction or the strength of the air flow.
- a drum 2 is rotatably mounted about a horizontal axis 3. It is driven in the direction of arrow 4. Its surface is slightly rough or matt, so that soft parts adhere better to it than hard parts.
- a feed plate 5 is provided, which is directed obliquely downwards to a point on the drum circumference which is located on the ascending side of the drum at a short distance from the vertical plane passing through the drum axis.
- the task plate 5 is mounted horizontally displaceably in the housing 1 at its upper end with a joint 6 and can be locked in its swivel positions by means of a linkage 7.
- the feed plate 5 consists of two plates 5a and 5b arranged in a cascade to one another, which are connected to one another by means of webs 8 in such a way that a slot 9 remains free between the two plate parts 5a and 5b.
- the housing 1 has a feed opening 12 above the feed plate 5 and two discharge openings 13 and 14 below the drum.
- a feed device 15 is arranged above the opening 12, from which the loose material loosens in free fall through the opening 12 onto the feed plate 5a.
- a scraper 16 is provided above the discharge opening 13 intended for the soft bulk goods parts shown in bright colors, which removes soft parts adhering to the drum surface.
- a box 21, which is also adjustable and is open towards the dispensing plate 5, is provided, in which soft parts accumulate and thus form a soft surface layer.
- the air flow 25 can be changed with regard to its direction and strength by guide plates 26 and adjustable control flaps 27.
- the feed plates 5a and 5b have a very rough surface, which in the embodiment of the device shown in FIG. 2 is formed by horizontally running sawtooth-like ribs 10 in cross section and in the embodiment shown in FIG. 4 by a support layer 11 made of coarse quartz sand is.
- the operation of the device is as follows:
- the bulk material falling from the feed device 15 in a loosened form through the housing opening 12 hits the upper feed plate 5a at a not inconsiderable speed.
- the rough surface 10, 11 of this feed plate causes a certain dissolution of the bulk material, in particular a separation of adhering hard and soft parts of the bulk material.
- the different parts rebound differently depending on their consistency and reach the drum 2 at different locations from the application plate 5, the harder ones than the softer ones. If even softer parts jump too far, they are caught by the locking plate 18 or by the box 21 and passed by these at point 17 to the drum 2, from where they are still taken up over the drum.
- the air flow 25 provided in the embodiment according to FIG. 3 has the effect that the softer and generally lighter parts are additionally retained more after their rebound.
Abstract
Description
Die Erfindung betrifft eine Vorrichtung zum Trennen von Schüttgutteilen unterschiedlicher Härte, insbesondere von Müllteilen, die aus einer um eine horizontale Achse umlaufenden Trommel und einer darüber angeordneten Aufgabeplatte besteht, von der das Schüttgut in aufgelockerter Form mit Abstand von der durch die Trommelachse gehenden lotrechten Ebene auf die sich aufwärts bewegende Seite der Trommel gelangt derart, daß weiche Teile des Schüttgutes von der Trommel über sie hinweg auf die sich abwärts bewegende Seite der Trommel mitgenommen und harte Teile auf der sich aufwärts bewegenden Seite der Trommel abwärts fallen, wobei eine Zuführungseinrichtung für das Schüttgut derart vorgesehen ist, daß das Schüttgut mit einer Geschwindigkeit auf die Aufgabeplatte auftrifft, die so bemessen ist, daß die härteren Teile infolge stärkerem Rückprall mit größerem Abstand von der durch die Trommelachse gehenden lotrechten Ebene auf die Trommel gelangen als die weicheren Teile.The invention relates to a device for separating bulk material parts of different hardness, in particular waste parts, which consists of a drum rotating around a horizontal axis and a feed plate arranged above it, from which the bulk material in a loosened form at a distance from the vertical plane passing through the drum axis the upward-moving side of the drum arrives in such a way that soft parts of the bulk material are carried along by it from the drum to the downward-moving side of the drum and hard parts on the upward-moving side of the drum fall down, with a feed device for the bulk material is provided in such a way that the bulk material hits the feed plate at a speed which is dimensioned such that the harder parts reach the drum at a greater distance from the vertical plane passing through the drum axis than the softer part as a result of stronger rebound e.
Vorrichtungen dieser Art sind in unterschiedlichen Ausführungsformen bekannt, beispielsweise aus dem Handbuch "Müll- und Abfallbeseitigung" von Kumpf, Maas und Straub, Band 2, Kennzahl 5510, Seiten 29 und 30, Abb. 34. Diese bekannten Hartstoffabscheider bewirken jedoch keine zufriedenstellende Trennung, weil aus unterschiedlichen Gründen gelegentlich weiche Teile, z. B. wenn sie mit harten Teilen verklebt oder sonstwie verbunden sind, zu weit von der Aufgabeplatte abspringen und dann von der Trommel nicht mehr zur anderen Seite mitgenommen werden.Devices of this type are known in different embodiments, for example from the "Waste and Waste Disposal" manual by Kumpf, Maas and Straub,
Aufgabe der Erfindung ist es, eine Vorrichtung zu schaffen, die eine wesentlich bessere Trennung der unterschiedlichen Teile bewirkt und insbesondere fehlgeleitete weiche Teile in einfacher Weise noch auf den richtigen Weg bringt, wozu bei bekannten Vorrichtungen eine aufwendige Hintereinanderschaltung mehrerer Vorrichtungen der gleichen Art vorgesehen ist (EP-B1 01 82 892).The object of the invention is to provide a device which brings about a much better separation of the different parts and, in particular, easily leads misguided soft parts onto the right path, for which purpose known devices require a complex series connection of several devices of the same type ( EP-B1 01 82 892).
Dieser Mangel wird vermieden, wenn gemäß der Erfindung an der Stelle des Trommelumfangs, an der die weicheren Teile des Schüttguts von der Trommel gerade noch nach oben mitgenommen werden, und mit einem der Größe der härteren Teile entsprechenden radialen Abstand von der Trommeloberfläche eine etwa radial zur Trommel gerichtete Sperrplatte mit weicher Oberflächenschicht angeordnet ist, die zur Vermeidung eines Rückpralls der weichen Teile vorgesehen ist.This defect is avoided if, according to the invention, at the location of the drum circumference at which the softer parts of the bulk material are just carried upwards by the drum, and with a radial distance from the drum surface corresponding to the size of the harder parts, an approximately radial to Drum-facing locking plate is arranged with a soft surface layer, which is provided to avoid rebounding of the soft parts.
Von der Sperrplatte, die verhältnismäßig steil verläuft, weil die erwähnte Stelle sich im oberen Viertel des Trommelumfangs befindet, gleiten die auf die Sperrplatte gelangenden Teile ohne tangentiale Bewegungskomponente auf die Trommel, so daß eine weitere gute Trennung der harten und weichen Teile stattfindet.From the locking plate, which runs relatively steeply because the location mentioned is in the upper quarter of the drum circumference, the parts reaching the locking plate slide onto the drum without tangential movement components, so that a further good separation of the hard and soft parts takes place.
Vorteilhaft für diese Trennwirkung ist es, wenn vorher eine möglichst saubere Trennung von miteinander verklebten oder sonstwie miteinander verbundenen Teilen des Schüttgutes stattgefunden hat. Deshalb ist es im Zusammenhang mit der erfindungsgemäßen Anordnung einer Sperrplatte vorteilhaft, wenn die Aufgabeplatte in bekannter Weise eine rauhe Oberfläche aufweist, durch die solche Teile des Schüttguts beim Aufprall in ihre unterschiedlichen Bestandteile aufgeteilt werden.It is advantageous for this separating effect if previously as clean as possible a separation of parts of the bulk material that are glued or otherwise connected to one another has taken place. That is why it is related to the Arrangement of a locking plate according to the invention is advantageous if the feed plate has a rough surface in a known manner, through which such parts of the bulk material are divided into their different components upon impact.
Die Rauhigkeit wird z.B. dadurch erzielt, daß die Oberfläche der Aufgabeplatte mit waagerecht verlaufenden, im Querschnitt nach oben gerichteten sägezahnartigen Rippen versehen ist, so daß sich ein guter Griff mit den aufprallenden Müllteilen ergibt. Eine ähnlich gute Wirkung wird erzielt, wenn die Aufgabeplatte mit einer Auflage aus grobem Quarzsand versehen ist, was mit Hilfe eines geeigneten Klebers geschehen kann.The roughness is e.g. achieved in that the surface of the feed plate is provided with horizontally extending sawtooth-like ribs in cross section, so that there is a good grip with the impacting waste parts. A similarly good effect is achieved if the feed plate is provided with a layer of coarse quartz sand, which can be done using a suitable adhesive.
Ordnet man die Aufgabeplatte zur aufsteigenden Seite der Trommel hin geneigt an und läßt man die Zuführung des Gutes von oben her in freiem Fall erfolgen, so kann man durch entsprechende Wahl der Fallhöhe die für die Trennung der untereinander verbundenen Teile geeignete Auftreffgeschwindigkeit erzielen.If one arranges the feed plate inclined towards the ascending side of the drum and allows the material to be fed in from above in free fall, the impact velocity suitable for the separation of the parts connected to one another can be achieved by appropriate choice of the drop height.
Dabei kann es vorteilhaft sein, wenn die Aufgabeplatte kaskadenartig gestuft ausgebildet ist und die Aufgabe des Schüttgutes auf die oberste Stufe erfolgt, weil dann die voneinander getrennten Teile erneut aufprallen können und entsprechend ihrer unterschiedlichen Härte verschieden weit zurückprallen, so daß eine gute Trennung auch für diese Teile auf der Trommel erreicht wird.It can be advantageous if the feed plate is cascaded and the bulk material is fed to the top step, because then the separated parts can bounce again and bounce back to different extents depending on their different hardness, so that a good separation also for them Parts on the drum is reached.
Damit die günstigsten Trennverhältnisse erreicht werden können ist die Aufgabeplatte bezüglich ihrer Neigung und ihrer Lage zu der durch die Trommelachse gehenden lotrechten Ebene in bekannter Weise verstellbar.So that the most favorable separation conditions can be achieved, the feed plate can be adjusted in a known manner with regard to its inclination and its position relative to the vertical plane passing through the drum axis.
Die erfindungsgemäß vorgesehene Sperrplatte kann auch den Boden eines zur Aufgabeplatte hin offenen Kastens bilden. Dann sammeln sich darin Müllteile, die als weiche Oberflächenschicht der Sperrplatte dienen.The locking plate provided according to the invention can also form the bottom of a box open towards the feed plate. Then garbage parts collect in it, which serve as a soft surface layer of the locking plate.
Zur Erzielung der günstigsten Trennwirkung, die bei derartigen Geräten nur durch Versuche ermittelt werden kann, ist die Sperrplatte in Umfangs- und in Radialrichtung zur Trommel einstellbar.In order to achieve the most favorable separating effect, which can only be determined by tests in such devices, the locking plate can be adjusted in the circumferential and radial directions relative to the drum.
Die Trennwirkung kann in bekannter Weise durch Luftströme beeinflußt werden. Bei der erfindungsgemäßen Vorrichtung geschieht dies vorzugsweise dadurch, daß ein Luftstrom erzeugt wird, der vom inneren Rand der Sperrplatte oder des Sperrkastens her, d.h. durch den Spalt zwischen einem dieser Teile und dem Trommelmantel, schräg gegen die Aufgabeplatte gerichtet ist. Neben dem Effekt einer Trennung der Teile durch Fluidisieren werden durch den Luftstrom die weicheren und im allgemeinen leichteren Teile des Mülls mehr als die härteren und schwereren in der Nähe der Aufgabeplatte gehalten, so daß sie von der Trommel auch besser nach oben mitgenommen werden. Diese Wirkung kann noch dadurch verstärkt werden, wenn bei kaskadenförmiger Aufgabeplatte dem Luftstrom die Möglichkeit gegeben wird, zwischen den Teilflächen der Aufgabeplatte hindurch auf deren Rückseite zu gelangen. Zur Beeinflussung der Richtung bzw. der Stärke des Luftstromes können verstellbare Leitbleche und Regelklappen vorgesehen sein.The separation effect can be influenced in a known manner by air currents. In the device according to the invention, this is preferably done in that an air flow is generated which comes from the inner edge of the locking plate or the locking box, i.e. through the gap between one of these parts and the drum shell, is directed obliquely against the feed plate. In addition to the effect of separating the parts by fluidizing, the air flow keeps the softer and generally lighter parts of the waste near the feed plate more than the harder and heavier ones, so that they are also better carried upwards by the drum. This effect can be further enhanced if, in the case of a cascade-shaped feed plate, the air flow is given the opportunity to pass between the partial surfaces of the feed plate on its rear side. Adjustable baffles and regulating flaps can be provided to influence the direction or the strength of the air flow.
In der Zeichnung sind zwei Ausführungsbeispiele der erfindungsgemäßen Trennvorrichtung dargestellt, und zwar zeigen
- Fig. 1 und 3
- lotrechte Schnitte durch die Vorrichtungen und
- Fig. 2 und 4
- Schnitte durch zwei Aufgabeplatten in größerem Maßstab.
- 1 and 3
- vertical cuts through the devices and
- 2 and 4
- Cuts through two larger size feed plates.
Innerhalb eines Gehäuses 1 ist eine Trommel 2 um eine horizontale Achse 3 drehbar gelagert. Sie wird im Sinne des Pfeiles 4 angetrieben. Ihre Oberfläche ist leicht rauh oder matt, so daß weiche Teile besser auf ihr haften als harte.Within a
Oberhalb der Trommel 2 ist eine Aufgabeplatte 5 vorgesehen, die schräg abwärts auf eine Stelle des Trommelumfangs gerichtet ist, die sich auf der aufsteigenden Seite der Trommel mit geringem Abstand von der durch die Trommelachse gehenden lotrechten Ebene befindet. Die Aufgabeplatte 5 ist an ihrem oberen Ende mit einem Gelenk 6 waagerecht verschiebbar im Gehäuse 1 gelagert und mittels eines Gestänges 7 in ihren Schwenkstellungen feststellbar.Above the
Die Aufgabeplatte 5 besteht aus zwei kaskadenartig zueinander angeordneten Platten 5a und 5b, die mittels Stegen 8 derart miteinander verbunden sind, daß ein Schlitz 9 zwischen den beiden Plattenteilen 5a und 5b freibleibt.The
Das Gehäuse 1 weist oberhalb der Aufgabeplatte 5 eine Zuführöffnung 12 und unterhalb der Trommel zwei Ausfallöffnungen 13 und 14 auf. Oberhalb der öffnung 12 ist eine Zuführeinrichtung 15 angeordnet, von der das Schüttgut aufgelockert in freiem Fall durch die öffnung 12 hindurch auf die Aufgabeplatte 5a fällt. Oberhalb der für die hell dargestellten weichen Schüttgutteile bestimmten Ausfallöffnung 13 ist ein Schaber 16 vorgesehen, der auf der Trommeloberfläche haftende weiche Teile ablöst.The
Bei der in Fig. 1 dargestellten Ausführungsform befindet sich an der Stelle 17 des Trommelumfanges, von der ab die weichen Teile von der Trommeloberfläche nicht mehr nach oben mitgenommen werden, mit einem der Größe der dunkel dargestellten harten Teile entsprechenden radialen Abstand von der Trommeloberfläche eine etwa radial gerichtete Sperrplatte 18, die mit einer weichen Oberflächenschicht 19 versehen ist. Sie ist an einem am Gehäuse 1 verstellbaren Halter 20 befestigt.In the embodiment shown in FIG. 1, at a
Bei der in Fig. 3 dargestellten Ausführungsform ist anstelle der Sperrplatte 18 ein ebenfalls verstellbarer, in Richtung zur Ausgabeplatte 5 offener Kasten 21 vorgesehen, in dem sich weiche Teile ansammeln und so eine weiche Oberflächenschicht bilden.In the embodiment shown in FIG. 3, instead of the
Hinter dem Kasten 21 befindet sich im Gehäuse 1 ein Ventilator 22, der durch einen Motor 23 angetrieben wird. Er bläst von innen angesaugte Luft durch einen zwischen dem Kasten 21 und dem Mantel der Trommel 2 vorgesehenen Schlitz 24 hindurch und nimmt eventuell hier vorhandene weiche und leichte Teile mit. Der Luftstrom ist gegen die Aufgabeplatten 5a und 5b gerichtet, wobei ein Teil davon durch den zwischen den beiden Aufgabeplatten befindlichen Schlitz 9 zur Rückseite der Aufgabeplatten entweicht. Der Luftstrom 25 kann durch Leitbleche 26 und verstellbare Regelklappen 27 bezüglich seiner Richtung und Stärke verändert werden.A fan 22, which is driven by a
Die Aufgabeplatten 5a und 5b haben eine stark rauhe Oberfläche, die bei der in Fig. 2 dargestellten Ausführungsform der Vorrichtung durch waagerecht verlaufende, im Querschnitt nach oben gerichtet sägezahnartige Rippen 10 und bei in Fig. 4 dargestellten Ausführungsform durch eine Auflageschicht 11 aus grobem Quarzsand gebildet ist.The
Die Wirkungsweise der Vorrichtung ist die folgende: Das von der Zuführeinrichtung 15 in aufgelockerter Form durch die Gehäuseöffnung 12 herabfallende Schüttgut trifft mit nicht unerheblicher Geschwindigkeit auf die obere Aufgabeplatte 5a auf. Die rauhe Oberfläche 10, 11 dieser Aufgabeplatte bewirkt, daß eine gewisse Auflösung des Schüttgutes, insbesondere eine Trennung von zusammenhaftenden harten und weichen Teilen des Schüttgutes stattfindet. Infolgedessen können bei weiteren Auftreffvorgängen, insbesondere auf die zweite und gegebenenfalls auf weitere Aufgabeplatten, die unterschiedlichen Teile je nach ihrer Konsistenz unterschiedlich zurückprallen und an unterschiedlich weit von der Aufgabeplatte 5 entfernten Stellen auf die Trommel 2 gelangen, die härteren weiter als die weicheren. Springen trotzdem noch weichere Teile zu weit, so werden sie von der Sperrplatte 18 oder von dem Kasten 21 aufgefangen und von diesen an der Stelle 17 auf die Trommel 2 geleitet, von wo sie noch nach oben über die Trommel mitgenommen werden. Der bei der Ausführungsform gemäß Fig. 3 vorgesehene Luftstrom 25 bewirkt, daß die weicheren und im allgemeinen leichteren Teile nach ihrem Rückprall zusätzlich stärker zurückgehalten werden.The operation of the device is as follows: The bulk material falling from the
Claims (10)
- Apparatus for separating bulk materials of differing hardness values, in particular refuse materials, comprising a horizontally rotating drum, arranged above which is a feed plate, from which the loosened bulk material falls at a distance from the vertical plane through the drum axis onto the ascending side of the drum in such a way that the soft bulk material component parts are carried by the drum over to the descending side of the drum, whereas the hard component parts drop on the ascending side of the drum, whereby an appropriate feed device for the bulk material is provided so that the bulk material strikes the feed plate with a velocity such that the harder component parts are deflected onto the drum at a greater distance from the vertical plane through the drum axis than are the softer component parts, characterised in that, arranged at the point (17) on the drum periphery at which the softer bulk material component parts are only just carried upwards by the drum (2) is a check plate (18) with a soft surface (19), which is located approximately radially to the surface of the drum at a radial distance corresponding to the size of the harder components.
- Apparatus according to claim 1, characterised in that the surface of the feed plate (5) is provided with horizontally-arranged ribs (10) with upwardly-pointing serrations.
- Apparatus according to claim 1, characterised in that the surface of the feed plate (5) is provided with a coating (11) of coarse quartz sand.
- Apparatus according to claim 1, characterised in that the feed plate (5) is arranged at a slope towards the ascending side of the drum (2), and the feed device (15) arranged in such a manner that the bulk material parts reach the feed plate in free fall.
- Apparatus according to claims 1 and 4, characterised in that the feed plate (5) is a cascade design (5a, 5b), the bulk material being fed onto the upper step (5a).
- Apparatus according to one of the above claims, characterised in that the feed plate (5) can be adjusted in respect of inclination and arrangement vis à vis the drum vertical plane (3).
- Apparatus according to claim 1, characterised in that the check plate (18) forms the base of a box (21) which is open towards the feed plate (5), in which box softer bulk material components are caught and act as a soft surface coating (19) of the check plate.
- Apparatus according to claims 1 or 7, characterised in that the check plate (18, 21) can be adjusted in a circumferential and radial direction vis à vis the drum (2).
- Apparatus according to claim 1, characterised in that a blower (22) is provided to generate an air flow (25), which is directed at the feed plate (5) through a slit (24) between the inner edge of the check plate (18) or the check box (21) and the drum casing (2).
- Apparatus according to claim 9, characterised in that deflector plates (26) and/or adjustable regulating flaps (27) are provided to vary the direction or strength of the air flow.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4108365A DE4108365C1 (en) | 1991-03-15 | 1991-03-15 | |
| DE4108365 | 1991-03-15 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0509252A2 EP0509252A2 (en) | 1992-10-21 |
| EP0509252A3 EP0509252A3 (en) | 1993-02-24 |
| EP0509252B1 true EP0509252B1 (en) | 1995-12-20 |
Family
ID=6427327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP92104497A Expired - Lifetime EP0509252B1 (en) | 1991-03-15 | 1992-03-16 | Apparatus for separating bulk materials of differing hardness values |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0509252B1 (en) |
| AT (1) | ATE131751T1 (en) |
| DE (2) | DE4108365C1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5241754B2 (en) * | 2010-03-01 | 2013-07-17 | 三菱電機株式会社 | Mixed waste plastic sorting equipment |
| PL232751B1 (en) | 2013-08-12 | 2019-07-31 | Int Tobacco Machinery Poland Spolka Z Ograniczona Odpowiedzialnoscia | Assembly for separation and method of separation of selected defective objects from the group of objects used in tobaco industry |
| CN116060302B (en) * | 2023-04-03 | 2023-06-20 | 中储粮成都储藏研究院有限公司 | Separation method and separation device for incomplete grains of spherical grains |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB350497A (en) * | 1929-12-07 | 1931-06-08 | Colin William Higham Holmes | Improvements in and relating to the separation of dry materials |
| FR975068A (en) * | 1942-01-20 | 1951-03-01 | Traitement Ind Des Residus Urb | Sorting apparatus for slush or other heterogeneous mixtures |
| GB581610A (en) * | 1944-09-15 | 1946-10-18 | Roland George Jackson | Improvements in or relating to the separation of minerals |
| GB900784A (en) * | 1959-06-23 | 1962-07-11 | Albert Brice | Improved apparatus for sorting stones and other matter from potatoes, or other crops or vegetables |
| JPS53130873A (en) * | 1977-04-20 | 1978-11-15 | Ebara Corp | Apparatus for separating city refuse |
| SE444392B (en) * | 1984-06-07 | 1986-04-14 | Urban Hage | SET AND DEVICE FOR SEPARATION OF LEAD AND COPPER PARTICLES |
| DE3804190A1 (en) * | 1987-02-13 | 1988-08-25 | Babcock Anlagen Ag | Apparatus for classifying a flow of particles and use of the apparatus |
| DE3710335C2 (en) * | 1987-03-28 | 1994-10-27 | Lindemann Maschfab Gmbh | Device for separating non-metals and non-ferrous metals from a mixture of materials |
-
1991
- 1991-03-15 DE DE4108365A patent/DE4108365C1/de not_active Expired - Fee Related
-
1992
- 1992-03-16 EP EP92104497A patent/EP0509252B1/en not_active Expired - Lifetime
- 1992-03-16 DE DE59204720T patent/DE59204720D1/en not_active Expired - Fee Related
- 1992-03-16 AT AT92104497T patent/ATE131751T1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| EP0509252A3 (en) | 1993-02-24 |
| ATE131751T1 (en) | 1996-01-15 |
| DE59204720D1 (en) | 1996-02-01 |
| DE4108365C1 (en) | 1992-06-04 |
| EP0509252A2 (en) | 1992-10-21 |
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