EP3090817A1 - Device for separating coarse particles from smaller particles - Google Patents
Device for separating coarse particles from smaller particles Download PDFInfo
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- EP3090817A1 EP3090817A1 EP16168079.8A EP16168079A EP3090817A1 EP 3090817 A1 EP3090817 A1 EP 3090817A1 EP 16168079 A EP16168079 A EP 16168079A EP 3090817 A1 EP3090817 A1 EP 3090817A1
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- Prior art keywords
- carrier
- screen bars
- bars
- screen
- grain
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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
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/12—Apparatus having only parallel elements
- B07B1/16—Apparatus having only parallel elements the elements being movable and in other than roller form
-
- 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
Definitions
- the invention relates to a device for separating coarse grain and smaller grain sizes with a sieving stretch of spaced juxtaposed, optionally in the conveying direction of the coarse grain falling, vibratory sieve bars, which are associated with a carrier and with a conveyor for the grain.
- Such devices are particularly od crushers or screens od. Like. Associated, which are provided for crushing lumpy feed material to smaller grain sizes in the coarse to medium size range. They are used in particular for the production of broken minerals from stones or building waste. In order to be able to effectively preseparate certain smaller material grains from the material to be crushed, a feed unit is arranged upstream of the crusher, into which the crushed material, for example with an excavator, can be placed.
- Known Zu articaen are usually vibrators or slats and separate heavy screens that form two separately drivable machines that have a large height and length, which in particular for the transport of such devices has disadvantages. Heavy screens are usually designed as mechanically, electrically, hydraulically or the like. Driven vibrating screens, with which although a clean separation of coarse grain and smaller grain sizes can be achieved, but are expensive to manufacture, have a large footprint and must always be supplied with energy why they cause high maintenance costs.
- the invention is therefore an object of the invention to provide a device of the type described above, which combines the advantages of integrated in a vibrating trough Siebumble and downstream of a Vibrorinne, separately driven, Schwersiebes, thus delivering good sieving results at a reduced size.
- the screen bars can also be formed by profiles, which are optionally wave-shaped in the respective support plane of the screen bars.
- the carrier is associated with two or more groups of screen bars, each group forming a screen deck connected separately to the carrier.
- Particularly simple and robust construction conditions result for such, for example, a crusher associated devices, when a group is coupled directly to the carrier, so practically formed carrier-resistant, and when the other group is indirectly connected via a coupling device to the carrier.
- both groups could also be indirectly connected to the carrier via separate coupling devices.
- the movable screen deck is mounted on one or both sides of springs on the carrier, so that between the adjacent screen bars in operation vibration amplitude of, for example, up to 30mm can be achieved.
- the Siebdecklagerung can be designed such that the screen bars can perform a torsional vibration, a parallel displacement or a combination of both movements with respect to the adjacent screen bars.
- vibration-excited screen bars move in the screen passage direction parallel to one another.
- the type of suspension will be chosen according to the purpose of use.
- steel springs, rubber springs, rubber-metal buffers, spring-damper systems are used, wherein the transfer function of the spring damper device is preferably adjustable.
- an eccentric or imbalance drive assigned to the group can be provided which, however, can be significantly smaller than in the case of known drives and which is preferably likewise installed on the vibrating chute like the conveying device. If the vibration drive but formed by the conveyor, so is no additional drive required and the screen deck vibrates with the vibrating chute. Neighboring screen bars then vibrate at excitation by the vibratory drive of different amplitude and phase shifted.
- the conveyor may be a linear conveyor, in particular an imbalance drive.
- the bearing distances of the screen decks and the output slope of the screen decks can be adjusted to one another with an adjusting device.
- a solid profile such as a square steel profile can be at least on the rigid screen bars be doubled.
- each adjacent screen bars are assigned to different support levels in the resting state.
- the screening line can consist of several individual cascades, arranged one behind the other in the conveying direction, of groups of screen bars.
- the carrier 5 are two, associated with the carrier 5, groups of screen bars 4, 4 'assigned, of which one group is mounted via a coupling device 9, such oscillatory relative to the carrier 5, that adjacent, the other group associated with sieve bars 4th , 4 'are vibration-excitable parallel to each other with a vibratory drive 7 in Sieb miclassraum 8.
- the carrier 5 is associated with two groups of screen bars 4, 4 ', of which each group forms a screen deck connected to the carrier via a separate coupling device.
- the screen decks have the different natural vibration frequencies, with the result that the screen bars 4, 4 'of the two screen decks mesh against each other during operation.
- the carrier is associated with two groups of screen bars, wherein the one group is coupled directly to the carrier, ie directly vibrates with the assembly of Vibrorinne 1 and Siebdeck and the other group via a coupling device 9, a spring-damper element, indirectly with the carrier 5 is connected and resonates.
- the vibration drive 7 is formed by the conveyor, wherein the conveyor is a linear conveyor, namely an imbalance drive is. Characterized in that the screen bars 4, 4 'are formed in cross-section T-shaped, increases the distance a respectively adjacent screen bars in Sieb miclassraum eighth
- One of the groups of screen bars 4 engages via a spring damper device, the coupling device 9, on the carrier 5, whose transfer function is preferably adjustable by adjusting the spring constant and / or the damping characteristic.
- the Siebdecklagerung can be designed such that the screen bars a torsional vibration, a parallel displacement or a combination of both movements ( Fig. 5 ) can perform over the adjacent screen bars.
- Fig. 6 and 7 is the oscillatory group of screen bars 4 mounted on the associated coupling device 9 on the carrier 5 such that the in Fig. 7 right bearing essentially allows torsional vibrations and linear oscillations prevented or greatly attenuated.
- the left bearing essentially causes a vibration around a circular path to the center of which lies in the region of the right-hand bearing axis and whose radius corresponds to the distance between the left and the right bearing.
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- Combined Means For Separation Of Solids (AREA)
Abstract
Es wird eine Vorrichtung zum Trennen von Grobkorn und kleineren Korngrößen mit einer Siebstrecke (2) aus mit Abstand nebeneinandergereihten, in Förderrichtung (3, F) des Grobkorns ausgerichteten, schwingungserregbaren Siebstäben (4, 4'), die einem Träger (5) zugeordnet sind und mit einer Fördereinrichtung für das Korn. Um vorteilhafte Siebverhältnisse zu schaffen, wird vorgeschlagen, dass dem Träger (5) wenigstens zwei, mit dem Träger (5) verbundene, Gruppen von Siebstäben (4, 4') zugeordnet sind, von denen wenigstens eine Gruppe über eine Kopplungseinrichtung (9), derart schwingfähig gelagert ist, dass jeweils benachbarte, einer anderen Gruppe zugeordnete, Siebstäbe (4, 4') mit einem Schwingungsantrieb (7) in Siebdurchlassrichtung (8) parallel zueinander schwingungserregbar sind. It is a device for separating coarse grain and smaller grain sizes with a screening line (2) of spaced juxtaposed in the conveying direction (3, F) of the coarse grain aligned, vibratory sieve bars (4, 4 '), which are associated with a carrier (5) and with a conveyor for the grain. In order to provide advantageous screen ratios, it is proposed that at least two groups of screen bars (4, 4 ') connected to the carrier (5) are assigned to the carrier (5), of which at least one group is connected via a coupling device (9), is supported so oscillating that each neighboring, another group associated with sieve bars (4, 4 ') with a vibration drive (7) in Siebdurchlassrichtung (8) are mutually vibrationally excitable.
Description
Die Erfindung bezieht sich auf eine Vorrichtung zum Trennen von Grobkorn und kleineren Korngrößen mit einer Siebstrecke aus mit Abstand nebeneinandergereihten, in Förderrichtung des Grobkorns gegebenenfalls abfallenden, schwingungserregbaren Siebstäben, die einem Träger zugeordnet sind und mit einer Fördereinrichtung für das Korn.The invention relates to a device for separating coarse grain and smaller grain sizes with a sieving stretch of spaced juxtaposed, optionally in the conveying direction of the coarse grain falling, vibratory sieve bars, which are associated with a carrier and with a conveyor for the grain.
Derartige Vorrichtungen sind insbesondere Brechern bzw. Siebstrecken od. dgl. zugeordnet, die zur Zerkleinerung von stückigem Aufgabematerial zu kleineren Korngrößen im groben bis mittleren Größenbereich vorgesehen sind. Sie werden insbesondere zur Erzeugung gebrochener Mineralstoffe aus Steinen bzw. Baurestmassen verwendet. Um aus dem zum Brechen vorgesehenen Aufgabegut bestimmte kleinere Materialkörnungen effektiv vorabscheiden zu können ist dem Brecher eine Zufördereinheit vorgeordnet, in welche das Brechgut, beispielsweise mit einem Bagger, aufgegeben werden kann. Bekannte Zufördereinheiten sind meist Vibrorinnen oder Plattenbänder und gesonderte Schwersiebe, die zwei getrennt voneinander antreibare Maschinen bilden, die eine große Bauhöhe und -länge aufweisen, was insbesondere auch für den Transport derartiger Vorrichtungen Nachteile hat. Schwersiebe werden üblicherweise als mechanisch, elektrisch, hydraulisch od. dgl. angetriebene Rüttelsiebe ausgeführt, mit denen zwar eine saubere Trennung von Grobkorn und kleineren Korngrößen erzielt werden kann, die aber aufwendig zu fertigen sind, einen großen Platzbedarf haben und stets mit Energie versorgt werden müssen, weshalb sie hohe Unterhaltskosten verursachen.Such devices are particularly od crushers or screens od. Like. Associated, which are provided for crushing lumpy feed material to smaller grain sizes in the coarse to medium size range. They are used in particular for the production of broken minerals from stones or building waste. In order to be able to effectively preseparate certain smaller material grains from the material to be crushed, a feed unit is arranged upstream of the crusher, into which the crushed material, for example with an excavator, can be placed. Known Zufördereinheiten are usually vibrators or slats and separate heavy screens that form two separately drivable machines that have a large height and length, which in particular for the transport of such devices has disadvantages. Heavy screens are usually designed as mechanically, electrically, hydraulically or the like. Driven vibrating screens, with which although a clean separation of coarse grain and smaller grain sizes can be achieved, but are expensive to manufacture, have a large footprint and must always be supplied with energy why they cause high maintenance costs.
Bekannte, in eine Vibrorinne integrierte Siebstrecken funktionieren hinsichtlich des erreichbaren Siebergebnisses nur unzureichend. Ihr Vorteil liegt aber in der gerineren erforderlichen Maschinenhöhe, dem geringeren Gewicht, dem niedrigeren Preis und der Einfachheit der Konstruktion, weshalb die Nachteile im Siebergebnis oft in Kauf genommen werden.Known, built into a Vibrorinne Siebstrecken work in terms of achievable Sieber result insufficient. Their advantage, however, lies in the lower required machine height, the lower weight, the lower price and simplicity of construction, which is why the disadvantages in the sieving result are often accepted.
Gemäß der
Der Erfindung liegt somit die Aufgabe zugrunde, eine Vorrichtung der eingangs geschilderten Art anzugeben, welche die Vorteile einer in einer Vibrorinne integrierten Siebstrecke und eines einer Vibrorinne nachgeordneten, gesondert antreibbaren, Schwersiebes vereint, also gute Siebergebnisse bei verringerter Baugröße liefert.The invention is therefore an object of the invention to provide a device of the type described above, which combines the advantages of integrated in a vibrating trough Siebstrecke and downstream of a Vibrorinne, separately driven, Schwersiebes, thus delivering good sieving results at a reduced size.
Die Erfindung löst die gestellte Aufgabe dadurch, dass dem Träger wenigstens zwei, mit dem Träger verbundene, Gruppen von Siebstäben zugeordnet sind, von denen wenigstens eine Gruppe über eine Kopplungseinrichtung, derart schwingfähig gelagert ist, dass jeweils benachbarte, einer anderen Gruppe zugeordnete, Siebstäbe mit einem Schwingungsantrieb in Siebdurchlassrichtung parallel zueinander schwingungserregbar sind.The invention solves this problem in that the carrier at least two associated with the carrier, groups of screen bars are assigned, of which at least one group is mounted via a coupling device, such oscillatory, that each adjacent, another group assigned, screen bars with a vibratory drive in Siebdurchlassrichtung parallel to each other are vibration excitable.
Damit ist es möglich eine Vorrichtung der eingangs geschilderten Art bereitzustellen, welche die Vorteile einer in einer Vibrorinne integrierte Siebstrecke mit denen eines einer Vibrorinne nachgeordneten, gesondert antreibbaren, Schwersiebes vereint, also gute Siebergebnisse bei verringerter Baugröße liefert. Durch die erfindungsgemäßen Maßnahmen ergeben sich Relativbewegungen zwischen benachbarten Siebstäben, welche Relativbewegungen das zu siebende Material auflockern, an Körnern anhaftende Teile lösen, den Transport kleinerer Korngrößen durch das Sieb, also das Aussieben, begünstigen und dadurch die Effizienz der Vorrichtung steigern. Zusätzlich wird damit die Bildung von das Sieb blockierendem Steckkorn verhindert. Dies wird zudem verbessert verhindert, wenn sich der Abstand jeweils benachbarter Siebstäbe in Siebdurchlassrichtung vergrößert und/oder wenn sich der Abstand jeweils benachbarter Siebstäbe in Förderrichtung vergrößert, bzw. wenn die Siebstäbe im Querschnitt T-, keilförmig od. dgl. ausgebildet sind. Die Siebstäbe können auch von Profilen gebildet sein, die in der jeweiligen Auflageebene der Siebstäbe gegebenenfalls wellenförmig ausgebildet sind.Thus, it is possible to provide a device of the type described above, which combines the advantages of a built-in vibratory trough Siebstrecke with those of a Vibrorinne downstream, separately driven, heavy sieve, so good sieve results at a reduced size delivers. By means of the measures according to the invention, relative movements between adjacent screen bars which loosen relative movement of the material to be screened, loosen adhering parts to grains, promote the transport of smaller grain sizes through the screen, that is, screening, and thereby increase the efficiency of the device. In addition, it prevents the formation of the sieve blocking Steckkorn. This is also improved prevented when the distance between each adjacent screen bars increases in Siebdurchlassrichtung and / or when the distance between adjacent screen bars in the conveying direction increases, or if the screen bars in cross section T, wedge-shaped. Like. Are formed. The screen bars can also be formed by profiles, which are optionally wave-shaped in the respective support plane of the screen bars.
Dem Träger sind zwei oder auch mehr Gruppen von Siebstäben zugeordnet, von denen jede Gruppe ein gesondert mit dem Träger verbundenes Siebdeck bildet. Besonders einfache und robuste Konstruktionsverhältnisse ergeben sich dabei für derartige, beispielsweise einem Brecher zugeordnete Vorrichtungen, wenn eine Gruppe unmittelbar an den Träger gekoppelt, also praktisch trägerfest ausgebildet ist, und wenn die andere Gruppe über eine Kopplungseinrichtung mittelbar mit dem Träger verbunden ist. Es könnten aber auch beide Gruppen über gesonderte Kopplungseinrichtungen mit dem Träger mittelbar verbunden sein. Das bewegliche Siebdeck ist ein- oder beidseitig über Federn am Träger gelagert, sodass zwischen den benachbarten Siebstäben im Betrieb Schwingweite von beispielsweise bis zu 30mm erreicht werden. Die Siebdecklagerung kann derart ausgeführt sein, dass die Siebstäbe eine Drehschwingung, eine Parallelverschiebung oder eine Kombination aus beiden Bewegungen gegenüber den benachbarten Siebstäben ausführen können. In jedem Fall bewegen sich schwingungserregte Siebstäbe in Siebdurchlassrichtung parallel zueinander. Die Art der Federung wird in Abhängigkeit des Einsatzzwecken entsprechend gewählt werden. Zum Einsatz kommen beispielsweise Stahlfedern, Gummifedern, Gummi-Metallpuffer, Feder-Dämpfersysteme, wobei die Übertragungsfunktion der Federdämpfereinrichtung vorzugsweise einstellbar ist.The carrier is associated with two or more groups of screen bars, each group forming a screen deck connected separately to the carrier. Particularly simple and robust construction conditions result for such, for example, a crusher associated devices, when a group is coupled directly to the carrier, so practically formed carrier-resistant, and when the other group is indirectly connected via a coupling device to the carrier. However, both groups could also be indirectly connected to the carrier via separate coupling devices. The movable screen deck is mounted on one or both sides of springs on the carrier, so that between the adjacent screen bars in operation vibration amplitude of, for example, up to 30mm can be achieved. The Siebdecklagerung can be designed such that the screen bars can perform a torsional vibration, a parallel displacement or a combination of both movements with respect to the adjacent screen bars. In any case, vibration-excited screen bars move in the screen passage direction parallel to one another. The type of suspension will be chosen according to the purpose of use. For example, steel springs, rubber springs, rubber-metal buffers, spring-damper systems are used, wherein the transfer function of the spring damper device is preferably adjustable.
Die Federkennlinie bzw. die Übertragungsfunktion der Federdämpfereinrichtung wird vorzugweise stark progressiv gewählt, um die Schwingweite bei höheren Frequenzen zu begrenzen. Bei niedrigen Frequenzen (=Nullförderung) soll die Relativbewegung zwischen den Böden vernachlässigbar sein. Bei Erhöhung der Frequenz steigen die Relativbewegungen zunächst stark an, wonach sie im oberen Frequenzbereich möglichst konstant gehalten werden sollen. Insbesondere schwingen benachbarte Siebstäbe mit gleicher Frequenz, falls sie von ein und demselben Schwingungsantrieb schwingungserregt werden, aber phasenverschoben.The spring characteristic or the transfer function of the spring damper device is preferably chosen to be highly progressive in order to limit the amplitude at higher frequencies. At low frequencies (= zero promotion) the relative movement between the soils should be negligible. When the frequency is increased, the relative movements initially increase sharply, after which they should be kept as constant as possible in the upper frequency range. In particular, adjacent screen bars oscillate at the same frequency if they are vibrationally excited by one and the same vibratory drive, but phase-shifted.
Um das Verkeilen von plattigem Material und/oder von Armierungsstählen zwischen benachbarten Siebstäben zu verhindern kann die unbeweglichere, insbesondere starr mit dem Träger verbundenen Gruppe, aus stehenden Flachstählen bestehen und die andere Gruppe aus Siebstäben mit T-Profilquerschnitt, bzw. mit sich in Siebdurchlassrichtung verjüngenden oder wellig geformten Profilen gefertigt sein.In order to prevent the wedging of platy material and / or reinforcing steels between adjacent screen bars, the more immobile, in particular rigidly connected to the support group consisting of standing flat steel and the other group of screen bars with T-profile cross-section, or tapering in Siebdurchlassrichtung or wavy shaped profiles.
Es kann zwar ein gesonderter Schwingungsantrieb für die in Siebdurchlassrichtung relativ zueinander bewegbaren Siebstäbe vorgesehen sein. So kann bei unzufriedenstellenden Siebergebnissen ein der Gruppe zugeordneter Exzenter oder Unwuchtantrieb vorgesehen sein, der allerdings deutlich kleiner als bei bekannten Antrieben ausfallen kann und der vorzugsweise ebenfalls wie die Fördereinrichtung auf der Vibrorinne verbaut ist. Ist der Schwingungsantrieb aber von der Fördereinrichtung gebildet, so ist kein zusätzlicher Antrieb erforderlich und das Siebdeck schwingt mit der Vibrorinne. Benachbarte Siebstäbe schwingen dann bei Erregung durch den Schwingungsantrieb mit unterschiedlicher Amplitude und Phasenverschoben. Die Fördereinrichtung kann ein Linearförderer, insbesondere ein Unwuchtantrieb, sein.Although it is possible to provide a separate oscillatory drive for the screen bars which can be moved relative to one another in the screen passage direction. Thus, in the case of unsatisfactory sieving results, an eccentric or imbalance drive assigned to the group can be provided which, however, can be significantly smaller than in the case of known drives and which is preferably likewise installed on the vibrating chute like the conveying device. If the vibration drive but formed by the conveyor, so is no additional drive required and the screen deck vibrates with the vibrating chute. Neighboring screen bars then vibrate at excitation by the vibratory drive of different amplitude and phase shifted. The conveyor may be a linear conveyor, in particular an imbalance drive.
Um die Schwingweite und die Scherenfunktion zwischen benachbarten Siebstäben zu optimieren, können die Lagerabstände der Siebdecks und die Ausgangsneigung der Siebdecks mit einer Verstelleinrichtung zueinander einstellbar sein.In order to optimize the amplitude and the shear function between adjacent screen bars, the bearing distances of the screen decks and the output slope of the screen decks can be adjusted to one another with an adjusting device.
Um den Verschleiß zu vermindern und große Brocken nicht unmittelbar auf den Siebspalten aufliegen zu lassen, kann wenigstens auf den starren Siebstäben ein Vollprofil, beispielsweise ein Vierkantstahlprofil aufgedoppelt werden. Vorzugsweise sind jeweils benachbarte Siebstäbe im Ruhezustand unterschiedlichen Auflageebenen zugeordnet.In order to reduce the wear and not to let large chunks rest directly on the sieve gaps, a solid profile, such as a square steel profile can be at least on the rigid screen bars be doubled. Preferably, each adjacent screen bars are assigned to different support levels in the resting state.
Um die Effizienz der Vorabsiebung weiter zu steigern, kann die Siebstrecke aus mehreren, in Förderrichtung hintereinander angeordneten Einzelkaskaden aus Gruppen von Siebstäben besteht.In order to further increase the efficiency of the preliminary screening, the screening line can consist of several individual cascades, arranged one behind the other in the conveying direction, of groups of screen bars.
In der Zeichnung ist der Erfindungsgegenstand beispielsweise dargestellt. Es zeigen
- Fig. 1
- eine erfindungsgemäße Vorrichtung mit Vibrorinne und Siebstrecke in Draufsicht,
- Fig. 2
- die Vorrichtung aus
Fig. 1 im Schnitt nach der Linie II-II, - Fig. 3
- die Vorrichtung aus
Fig. 2 im Schnitt nach der Linie III-III, - Fig. 4
- die Vorrichtung aus
Fig. 2 im Schnitt nach der Linie IV-IV, - Fig. 5
- die Siebstrecke der Vorrichtung in vergrößerter Schrägansicht,
- Fig. 6
- eine Konstruktionsvariante der Siebstrecke aus
Fig. 5 mit alternativer Kopplungseinrichtung und - Fig. 7
- die schwingfähige Gruppe von Siebstäben mit zugeordneter Kopplungseinrichtung aus
Fig. 6 ohne Träger.
- Fig. 1
- a device according to the invention with vibrating chute and sieving line in plan view,
- Fig. 2
- the device off
Fig. 1 in section along the line II-II, - Fig. 3
- the device off
Fig. 2 in section along the line III-III, - Fig. 4
- the device off
Fig. 2 in section along the line IV-IV, - Fig. 5
- the sieve section of the device in an enlarged oblique view,
- Fig. 6
- a construction variant of the Siebstrecke
Fig. 5 with alternative coupling device and - Fig. 7
- the oscillatory group of screen bars with associated coupling device
Fig. 6 without carrier.
Die Vorrichtung zum Trennen von Grobkorn und kleineren Korngrößen umfasst eine Vibrorinne 1, also eine Rinne mit einer Fördereinrichtung für das in die Rinne aufgegebene Korn und eine Siebstrecke 2 aus mit Abstand nebeneinandergereihten, in Förderrichtung 3 des Grobkorns ausgerichteten und dabei abfallenden, schwingungserregbaren Siebstäben 4, 4', die einem Träger 5 zugeordnet sind.The device for separating coarse grain and smaller grain sizes comprises a vibrating
Dem Träger 5 sind zwei, mit dem Träger 5 verbundene, Gruppen von Siebstäben 4, 4' zugeordnet, von denen eine Gruppe über eine Kopplungseinrichtung 9, derart schwingfähig gegenüber dem Träger 5 gelagert ist, dass jeweils benachbarte, der anderen Gruppe zugeordnete, Siebstäbe 4, 4' mit einem Schwingungsantrieb 7 in Siebdurchlassrichtung 8 parallel zueinander schwingungserregbar sind.The
Insbesondere sind dem Träger 5 zwei Gruppen von Siebstäben 4, 4' zugeordnet sind, von denen jede Gruppe ein über eine gesonderte Kopplungseinrichtung mit dem Träger verbundenes Siebdeck bildet. Die Siebdecks weisen die unterschiedlichen Eigenschwingungsfrequenzen auf, was zur Folge hat, dass die Siebstäben 4, 4' der beiden Siebdecks im Betrieb gegeneinander kämmen. Im vorliegenden Ausführungsbeispiel sind dem Träger zwei Gruppen von Siebstäben zugeordnet, wobei die eine Gruppe unmittelbar an den Träger gekoppelt ist, also unmittelbar mit der Baueinheit aus Vibrorinne 1 und Siebdeck schwingt und die andere Gruppe über eine Kopplungseinrichtung 9, ein Feder- Dämpferelement, mittelbar mit dem Träger 5 verbunden ist und mitschwingt.In particular, the
Der Schwingungsantrieb 7 ist von der Fördereinrichtung gebildet ist, wobei die Fördereinrichtung ein Linearförderer, nämlich ein Unwuchtantrieb, ist. Dadurch, dass die Siebstäbe 4, 4' im Querschnitt T-förmig ausgebildet sind, vergrößert sich der Abstand a jeweils benachbarter Siebstäbe in Siebdurchlassrichtung 8.The
In
Eine der Gruppen von Siebstäben 4 greift über eine Federdämpfereinrichtung, die Kopplungseinrichtung 9, am Träger 5, an, deren Übertragungsfunktion vorzugsweise durch Einstellung der Federkonstante und/oder der Dämpfungskennlinie einstellbar ist.One of the groups of
Die Siebdecklagerung kann derart ausgeführt sein, dass die Siebstäbe eine Drehschwingung, eine Parallelverschiebung oder eine Kombination aus beiden Bewegungen (
Im Ausführungsbeispiel nach
Claims (10)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ATA50367/2015A AT516406B1 (en) | 2015-05-06 | 2015-05-06 | Device for separating coarse grain from smaller grain sizes |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP3090817A1 true EP3090817A1 (en) | 2016-11-09 |
| EP3090817B1 EP3090817B1 (en) | 2023-06-28 |
| EP3090817C0 EP3090817C0 (en) | 2023-06-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP16168079.8A Active EP3090817B1 (en) | 2015-05-06 | 2016-05-03 | Device for separating coarse particles from smaller particles |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP3090817B1 (en) |
| AT (1) | AT516406B1 (en) |
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| CN112024394A (en) * | 2020-06-29 | 2020-12-04 | 安徽科技学院 | Control system of automatic rapeseed screening machine |
| CN113305007A (en) * | 2021-06-09 | 2021-08-27 | 廖进锋 | Device for screening and removing flour cakes |
| CN114985242A (en) * | 2022-05-28 | 2022-09-02 | 中国热带农业科学院农业机械研究所 | A fully automatic pineapple seedling selection and planting device |
| CN116441153A (en) * | 2023-06-13 | 2023-07-18 | 中国云南路建集团股份公司 | Gravel screening equipment for municipal construction |
| CN117339872A (en) * | 2023-11-16 | 2024-01-05 | 温州市通洲环保设备有限公司 | An anti-blocking vibrating screen |
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| WO1993007971A1 (en) * | 1991-10-22 | 1993-04-29 | Edem Steel Ltd. | Vibrating conveyor screening method and apparatus |
| FR2714315A1 (en) * | 1993-12-27 | 1995-06-30 | Gen Dechets Recyclabl Centre | Size sorting of wastes |
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| DE3834381A1 (en) * | 1988-10-10 | 1990-04-12 | Gronholz Claus | Apparatus for comminuting and processing large-grained material |
| DE19944182B4 (en) * | 1998-09-19 | 2009-09-10 | Helmut Gegenheimer | Abrasive Grain screening device |
| AT411577B (en) * | 2002-09-19 | 2004-03-25 | Hmh Engineering Consulting Tra | DEVICE FOR SEPARATING COARSE GRAIN AND FINE GRAIN |
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| US3105815A (en) * | 1961-03-27 | 1963-10-01 | Simplicity Eng Co | Vibratory feeder |
| WO1993007971A1 (en) * | 1991-10-22 | 1993-04-29 | Edem Steel Ltd. | Vibrating conveyor screening method and apparatus |
| FR2714315A1 (en) * | 1993-12-27 | 1995-06-30 | Gen Dechets Recyclabl Centre | Size sorting of wastes |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108505942A (en) * | 2018-03-13 | 2018-09-07 | 西南石油大学 | A kind of single excitation Drilling vibration device and intermittent single excitation Drilling vibration device |
| CN112024394A (en) * | 2020-06-29 | 2020-12-04 | 安徽科技学院 | Control system of automatic rapeseed screening machine |
| CN113305007A (en) * | 2021-06-09 | 2021-08-27 | 廖进锋 | Device for screening and removing flour cakes |
| CN114985242A (en) * | 2022-05-28 | 2022-09-02 | 中国热带农业科学院农业机械研究所 | A fully automatic pineapple seedling selection and planting device |
| CN116441153A (en) * | 2023-06-13 | 2023-07-18 | 中国云南路建集团股份公司 | Gravel screening equipment for municipal construction |
| CN116441153B (en) * | 2023-06-13 | 2023-08-22 | 中国云南路建集团股份公司 | Gravel screening equipment for municipal construction |
| CN117339872A (en) * | 2023-11-16 | 2024-01-05 | 温州市通洲环保设备有限公司 | An anti-blocking vibrating screen |
Also Published As
| Publication number | Publication date |
|---|---|
| AT516406A4 (en) | 2016-05-15 |
| AT516406B1 (en) | 2016-05-15 |
| EP3090817B1 (en) | 2023-06-28 |
| EP3090817C0 (en) | 2023-06-28 |
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