EP1909976A2 - Screening device - Google Patents

Screening device

Info

Publication number
EP1909976A2
EP1909976A2 EP06761978A EP06761978A EP1909976A2 EP 1909976 A2 EP1909976 A2 EP 1909976A2 EP 06761978 A EP06761978 A EP 06761978A EP 06761978 A EP06761978 A EP 06761978A EP 1909976 A2 EP1909976 A2 EP 1909976A2
Authority
EP
European Patent Office
Prior art keywords
combs
screening device
roller
grid
comb
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.)
Granted
Application number
EP06761978A
Other languages
German (de)
French (fr)
Other versions
EP1909976B1 (en
Inventor
Johann Doppstadt
Horst Berger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Doppstadt Calbe GmbH
Original Assignee
Doppstadt Calbe GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Doppstadt Calbe GmbH filed Critical Doppstadt Calbe GmbH
Publication of EP1909976A2 publication Critical patent/EP1909976A2/en
Application granted granted Critical
Publication of EP1909976B1 publication Critical patent/EP1909976B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
    • B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/16—Details
    • B02C18/18—Knives; Mountings thereof
    • 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
    • B07B1/04—Stationary flat screens
    • 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
    • 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
    • B07B13/04—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices according to size
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/16—Details
    • B02C18/18—Knives; Mountings thereof
    • B02C2018/188—Stationary counter-knives; Mountings thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
    • B02C23/16—Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
    • B02C2023/165—Screen denying egress of oversize material

Definitions

  • the invention relates to a screening device consisting of a comb extension with a plurality of combs formed of flexible material, which are arranged parallel to each other.
  • Such screening devices are known, they are used for example on roll crushers, which are used for the comminution of garbage, bulky waste, waste wood and so on.
  • the roller shredders have teeth which work against a counter-comb and thereby shred the material.
  • baskets with a specific perforation are placed under the crushing roller. These baskets are usually rigidly arranged. With the size and type of perforation, the grain size of the final material is determined. By using the rigid baskets, the shredders become susceptible to interfering substances such as stones, iron pieces and so on. Large parts that have not been crushed and do not fall through the basket are repeatedly taken around the roller and can thereby destroy the cutting unit or the cutting tools or the basket. For fine grinders with a basket perforation of 20 mm to about 80 mm and a speed of the roller of about 100 revolutions per minute, it is therefore absolutely necessary to feed the input material to the comminution free of contaminants. This means that this material must be pretreated.
  • screening devices have hitherto been used which have a so-called smooth comb extension in order to screen off the comminuted material and to feed material which has not been comminuted once again over the roller in the comminuting process.
  • the advantage of this known from the prior art solution over a rigid basket is that the individual combs of the comb extension are movable in some way and therefore can escape when unzerkleinertes material passes through the comb. This means that the comb can dodge when very large contaminants such as iron get into the funnel. The individual combs of the comb extension can be replaced relatively easily when damaged.
  • the disadvantage of the smooth bars is that thin and long material can fall through the gaps between the combs and thus the desired grain accuracy can not be achieved.
  • the object of the invention is therefore to propose a screening device which no longer has the disadvantages of the prior art described above.
  • the invention is based on the prior art described above and proposes a screening device consisting of a comb extension with a plurality of combs formed of flexible material, which are arranged parallel to one another, which is characterized in that the combs are provided with bends or rounding which serve to form a grid for defining the grain size of the screened material. Because of this solution, it is now possible to form a specific grid for the definition of grain size and thus to achieve a very high accuracy and accuracy of the crushing of the material to be shredded.
  • the advantages of the sieve tions, which work with a so-called smooth comb extension, thereby obtained, namely, the combs are effectively flexible. Preferably, these are formed of resilient material such as spring steel.
  • the combs have trapezoid bends.
  • trapezoidal bends By these trapezoidal bends, a honeycomb-shaped grid is formed, which allows a very good definition of the screen size to be achieved for the comminuted material.
  • the distances between the individual combs are variable so that larger or smaller pitches can be obtained. It is also possible to exchange the combs of the comb extension and thereby cause a larger grid is formed. Of course, the entire comb extension can be held up with different comb designs to do so.
  • a development of the invention provides that the bends are angled in opposite directions, so that the grid is specified as the already described honeycomb sieve. Furthermore, as mentioned above, an embodiment of the invention is characterized in that the grid is different due to Licher comb sizes is changeable, such that different grains are defined by different sizes.
  • a further variant of the screening device according to the invention provides that the bends are offset relative to each other, so that the slots are formed unevenly. Even with this, a specific grid can be produced and certain screening tasks can be better solved.
  • Another aspect of the invention is characterized in that the combs have rounded portions which are formed in opposite directions or in parallel, such that the grid is formed in a hole-shaped or serpentine shape.
  • the invention also provides a screening device, in which the combs are mutually angled or bent.
  • the combs are angled at their free ends, angled upwards, in particular in the installation direction of the roller crusher.
  • the combs of the comb extension can be formed from flat material or from round material.
  • the combs are formed from spring steel.
  • the combs can be formed in one piece or from two or more layers stacked spring steel comb elements.
  • the distances between the combs to each other are, according to a development of the invention, changeable or variable.
  • the invention also relates to a roller shredder with a screening device as described above.
  • An advantageous development of the roller shredder according to the invention provides that the roller is designed for a rotational speed of 20 to 100 revolutions per minute, preferably of 40 revolutions per minute.
  • the combs of the comb extension are preferably arranged in the working position under the counter-combs of the roller crusher and furthermore preferably in the intermediate spaces or under the spaces between the counter-combs.
  • a development of the invention also provides that the combs of the comb extension are connected directly to the counter-combs of the roller shredder.
  • This storage is arranged in the housing of the roller crusher and is preferably pivotally mounted.
  • the storage of hydraulic cylinders that engage the storage is movable. This ensures, on the one hand, that the comb extension is in each case in an optimum position with respect to the roller and, on the other hand, the distance between the cutting tools of the roller and the counter-combs can thus also be influenced, for example while the counter combs are mounted on the mounting.
  • Fig. 1 embodiment of the invention with honeycomb grid of
  • FIG. 2 further embodiment of the invention with trapezoidal co-rotating angled combs and
  • Fig. 3 is a known from the prior art screening device with straight ridges.
  • Fig. 1 shows an embodiment of the invention with honeycomb grid 3 of the comb extension I.
  • the combs 1 are trapezoidal angled in opposite directions to each other, so that a honeycomb pattern 3 is formed.
  • By the arrangement of the counter-trapezoidal bent combs 1 creates the grid 3.
  • the counter combs 5 of the roller crusher which is not shown, arranged.
  • These counter-combs 5 cooperate with the cutting tools arranged on the roller, such that the cutting tools engage in the interstices of the counter-combs and thus the material conveyed in by the roller is comminuted between the cutting tools of the roller and the counter-combs 5.
  • the storage is designated, to which the comb extension I and the counter combs 5 are attached.
  • This storage 6 is preferably pivotally or rotatably mounted and has at its two ends receiving points where, for example hydraulic cylinders can attack to move the storage including counter comb 5 and comb extension I or exert pressure on this, so that the comb extension I or the counter combs 5 always remain in the desired setting.
  • the setting can also be changed by means of these hydraulic cylinders, whereby a change in the grain size of the comminuted material can be achieved.
  • the combs 1 of the comb extension I for example, interchangeable, so that in case of failure or destruction of a single comb 1 this can be easily replaced.
  • Fig. 2 shows another embodiment of the invention with a trapezoidal shape.
  • This training also creates a grid 3, which is formed by serpentine spaces between the combs 1.
  • the other reference numerals have already been presented in FIG. 1 and will not be described again.
  • Fig. 3 shows a comb extension I, as known from the prior art.
  • the individual combs 1 are straight, so that also straight spaces or a concurrently parallel grid 3 is formed.
  • the disadvantages of this solution have been described at the beginning.
  • the reference numerals also refer to the same technical features, so that not all the reference numbers are presented again.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Combined Means For Separation Of Solids (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Crushing And Grinding (AREA)
  • Food-Manufacturing Devices (AREA)
  • Preliminary Treatment Of Fibers (AREA)

Abstract

A sieve device including a cog elongation with several cogs shaped from flexible material arranged parallel to each other. The cogs are provided with bends or chamfers serving for defining a grid to define the grain size for the sieved material. The sieve device is included in a cylinder disintegrator.

Description

Titel der Erfindung: „Siebvorrichtung"Title of the Invention: "Screening Device"
Anmelderin: Doppstadt Calbe GmbH, Barbyer Chaussee 3, 39240 Calbe/SaaleApplicant: Doppstadt Calbe GmbH, Barbyer Chaussee 3, 39240 Calbe / Saale
Beschreibungdescription
Die Erfindung betrifft eine Siebvorrichtung, bestehend aus einer Kammverlängerung mit mehreren, aus flexiblen Material gebildeten Kämmen, die parallel zueinander angeordnet sind.The invention relates to a screening device consisting of a comb extension with a plurality of combs formed of flexible material, which are arranged parallel to each other.
Derartige Siebvorrichtungen sind bekannt, sie werden beispielsweise an Walzen- zerkleinerern eingesetzt, die zur Zerkleinerung von Müll, Sperrmüll, Altholz und so weiter verwendet werden. Die Walzenzerkleinerer weisen dabei Zähne auf, die gegen einen Gegenkamm arbeiten und dabei das Material zerkleinern.Such screening devices are known, they are used for example on roll crushers, which are used for the comminution of garbage, bulky waste, waste wood and so on. The roller shredders have teeth which work against a counter-comb and thereby shred the material.
Um eine bestimmte Korngröße zu erreichen, werden unter der Zerkleinerungswalze Körbe mit einer bestimmten Lochung angebracht. Diese Körbe sind in der Regel starr angeordnet. Mit der Größe und der Art der Lochung wird die Korngröße des Endmaterials bestimmt. Durch den Einsatz der starren Körbe werden die Walzenzerkleinerer störanfällig gegen Störstoffe wie Steine, Eisenstücke und so weiter. Große Teile, die nicht zerkleinert worden sind und nicht durch den Korb hindurchfallen, werden immer wieder mit um die Walze genommen und können dadurch das Schneidwerk beziehungsweise die Schneidwerkzeuge oder den Korb zerstören. Bei Feinzerkleinerern mit einer Korblochung von 20 mm bis circa 80 mm und einer Drehzahl der Walze von circa 100 Umdrehungen pro Minute ist es daher unbedingt notwendig, das Eingangsmaterial störstofffrei der Zerkleinerung zuzuführen. Dies bedeutet, dass dieses Material vorbehandelt werden muss. Dieser Vorgang ist relativ aufwendig, da diese Vorsortierung beziehungsweise Vorbehandlung den Einsatz zusätzlicher Maschinen und zusätzlicher Bearbeitungszeit benötigt. Bei der Vorzerkleinerung von Material, bei dem in der Regel unbehandeltes Material zerkleinert werden soll, ist aber ebenfalls eine exakte Zerkleinerung des Materials gewünscht. Beispielsweise ist hier eine Korngröße kleiner 150 mm vorgesehen. Hier ist der Einsatz eines starren Korbes aus den vorbeschriebenen Gründen sehr problematisch wenn nicht gar unmöglich.In order to achieve a certain grain size, baskets with a specific perforation are placed under the crushing roller. These baskets are usually rigidly arranged. With the size and type of perforation, the grain size of the final material is determined. By using the rigid baskets, the shredders become susceptible to interfering substances such as stones, iron pieces and so on. Large parts that have not been crushed and do not fall through the basket are repeatedly taken around the roller and can thereby destroy the cutting unit or the cutting tools or the basket. For fine grinders with a basket perforation of 20 mm to about 80 mm and a speed of the roller of about 100 revolutions per minute, it is therefore absolutely necessary to feed the input material to the comminution free of contaminants. This means that this material must be pretreated. This process is relatively expensive, since this presorting or pretreatment requires the use of additional machinery and additional processing time. In the pre-shredding of material in which usually untreated material to be crushed, but also an exact crushing of the material is desired. For example, a particle size of less than 150 mm is provided here. Here is the use of a rigid basket for the above reasons very problematic if not impossible.
Aus diesem Grund werden bisher auch Siebvorrichtungen eingesetzt, die eine sogenannte glatte Kammverlängerung besitzen, um das zerkleinerte Material abzusieben und Material, welches nicht zerkleinert wurde, noch einmal im Zerklei- nerungsprozess über die Walze zuzuführen. Der Vorteil dieser aus dem Stand der Technik bekannten Lösung gegenüber einem starren Korb liegt darin, dass die einzelnen Kämme der Kammverlängerung in gewisser Weise beweglich sind und daher ausweichen können, wenn unzerkleinertes Material durch den Kamm gelangt. Das bedeutet, dass der Kamm ausweichen kann, wenn sehr große Störstoffe wie Eisenteile in den Trichter gelangen. Die einzelnen Kämme der Kammverlängerung können dabei bei einer Beschädigung relativ einfach ausgewechselt werden.For this reason, screening devices have hitherto been used which have a so-called smooth comb extension in order to screen off the comminuted material and to feed material which has not been comminuted once again over the roller in the comminuting process. The advantage of this known from the prior art solution over a rigid basket is that the individual combs of the comb extension are movable in some way and therefore can escape when unzerkleinertes material passes through the comb. This means that the comb can dodge when very large contaminants such as iron get into the funnel. The individual combs of the comb extension can be replaced relatively easily when damaged.
Der Nachteil der glatten Stäbe liegt darin, dass dünnes und langes Material durch die Spalten zwischen den Kämmen hindurchfallen kann und somit die gewünschte Korngenauigkeit nicht erreicht werden kann.The disadvantage of the smooth bars is that thin and long material can fall through the gaps between the combs and thus the desired grain accuracy can not be achieved.
Aufgabe der Erfindung ist es daher, eine Siebvorrichtung vorzuschlagen, die die zuvor beschriebenen Nachteile des Standes der Technik nicht mehr aufweist.The object of the invention is therefore to propose a screening device which no longer has the disadvantages of the prior art described above.
Die Erfindung geht von dem zuvor beschriebenen Stand der Technik aus und schlägt eine Siebvorrichtung, bestehend aus einer Kammverlängerung mit mehreren, aus flexiblen Material gebildeten Kämmen vor, die parallel zueinander angeordnet sind, die sich dadurch auszeichnet, dass die Kämme mit Abwinklungen beziehungsweise Abrundungen versehen sind, die zur Ausbildung eines Rasters zur Definition der Korngröße für das gesiebte Material dienen. Aufgrund dieser Lösung ist es jetzt möglich, ein bestimmtes Raster für die Definition der Korngröße auszubilden und damit eine recht hohe Genauigkeit und Exaktheit der Zerkleinerung des zu zerkleinernden Gutes zu erreichen. Die Vorteile der Siebvorrich- tungen, welche mit einer sogenannten glatten Kammverlängerung arbeiten, bleiben dabei erhalten, indem nämlich die Kämme gewissermaßen flexibel sind. Bevorzugt werden diese aus federndem Material wie zum Beispiel Federstahl ausgebildet. Die sehr großen Störstoffe, wie beispielsweise Eisenteile, die durch den Walzenzerkleinerer nicht zerkleinert werden, können aufgrund dieser flexiblen Ausbildung der Kämme der Kammverlängerung ohne weiteres durch den Kamm geführt werden. Gleichzeitig wird jedoch verhindert, dass die bei den glatten Kammverlängerungen durch die Zwischenräume hindurchfallenden, länglichen Überkorngrößen nicht mehr durch die Kammverlängerung fallen können und somit nochmals der Zerkleinerung zugeführt werden. Durch diese erfindungsgemäße Ausbildung der Siebvorrichtung wird es erreicht, dass die Störanfälligkeit der Siebvorrichtung beziehungsweise des Walzenzerkleinerers selbst verringert wird. Zum Weiteren wird die Definition der zu siebenden Korngrößen weiter verbessert und das gesiebte Gut in einer recht hohen Genauigkeit der Korngrößen erhalten. Übergrößen können ohne weiteres auch maschinell beim Abtransport des gesiebten Gutes noch entfernt werden. Dies geschieht auf übliche Weise, zum Beispiel in Magnetabscheidern, händisch oder mittel anderer, technisch dazu geeigneter Möglichkeiten.The invention is based on the prior art described above and proposes a screening device consisting of a comb extension with a plurality of combs formed of flexible material, which are arranged parallel to one another, which is characterized in that the combs are provided with bends or rounding which serve to form a grid for defining the grain size of the screened material. Because of this solution, it is now possible to form a specific grid for the definition of grain size and thus to achieve a very high accuracy and accuracy of the crushing of the material to be shredded. The advantages of the sieve tions, which work with a so-called smooth comb extension, thereby obtained, namely, the combs are effectively flexible. Preferably, these are formed of resilient material such as spring steel. The very large contaminants, such as iron parts, which are not crushed by the roller crusher, can be easily passed through the comb due to this flexible formation of the ridges of the comb extension. At the same time, however, prevents the falling in the smooth comb extensions through the interstices, elongated oversize grain sizes can no longer fall through the comb extension and thus are again fed to the crushing. By this inventive design of the screening device, it is achieved that the susceptibility of the screen device or the shredder itself is reduced. Furthermore, the definition of the particle sizes to be screened is further improved and the sieved material is obtained in a fairly high accuracy of the grain sizes. Oversizes can be easily removed by machine when removing the sieved goods. This is done in the usual way, for example in magnetic separators, manually or by means of other technically suitable options.
Eine vorteilhafte Weiterbildung der Erfindung zeichnet sich dadurch aus, dass die Kämme trapezartige Abwinklungen besitzen. Durch diese trapezartigen Abwinklungen wird ein wabenförmiges Raster ausgebildet, was eine sehr gute Definition der zu erreichenden Siebgröße für das zerkleinerte Gut ermöglicht. Des Weiteren sind die Abstände zwischen den einzelnen Kämmen variierbar, so dass größere oder kleinere Raster erhalten werden können. Auch ist es möglich, die Kämme der Kammverlängerung auszutauschen und damit zu bewirken, dass ein größeres Raster entsteht. Selbstverständlich kann dazu auch die gesamte Kammverlängerung mit unterschiedlichen Kammausbildungen vorgehalten werden.An advantageous development of the invention is characterized in that the combs have trapezoid bends. By these trapezoidal bends, a honeycomb-shaped grid is formed, which allows a very good definition of the screen size to be achieved for the comminuted material. Furthermore, the distances between the individual combs are variable so that larger or smaller pitches can be obtained. It is also possible to exchange the combs of the comb extension and thereby cause a larger grid is formed. Of course, the entire comb extension can be held up with different comb designs to do so.
Eine Weiterbildung der Erfindung sieht vor, dass die Abwinklungen gegenläufig abgewinkelt sind, so dass das Raster als das bereits beschriebene wabenförmi- ge Sieb angegeben ist. Im Weiteren zeichnet sich, wie zuvor erwähnt, eine Ausführungsform der Erfindung dadurch aus, dass das Raster aufgrund unterschied- licher Kammgrößen veränderbar ist, derart, dass durch unterschiedliche Größen unterschiedliche Körnungen definiert werden.A development of the invention provides that the bends are angled in opposite directions, so that the grid is specified as the already described honeycomb sieve. Furthermore, as mentioned above, an embodiment of the invention is characterized in that the grid is different due to Licher comb sizes is changeable, such that different grains are defined by different sizes.
Selbstverständlich ist es auch möglich, dass die Abwinklungen gleichläufig, bevorzugt parallel verlaufen, so dass das Raster mit trapezförmig abgewinkelten Schlitzen angegeben ist.Of course, it is also possible that the bends in the same direction, preferably parallel, so that the grid is specified with trapezoidal angled slots.
Eine weitere Variante der erfindungsgemäßen Siebvorrichtung sieht vor, dass die Abwinklungen versetzt zueinander verlaufen, so dass die Schlitze ungleichmäßig ausgebildet sind. Auch damit lässt sich ein bestimmtes Raster herstellen und bestimmte Siebaufgaben sind damit besser lösbar.A further variant of the screening device according to the invention provides that the bends are offset relative to each other, so that the slots are formed unevenly. Even with this, a specific grid can be produced and certain screening tasks can be better solved.
Ein weiterer Aspekt der Erfindung ist dadurch angegeben, dass die Kämme Abrundungen aufweisen, die gegenläufig oder gleichlaufend parallel ausgebildet sind, derart, dass das Raster lochförmig beziehungsweise schlangenförmig ausgebildet ist.Another aspect of the invention is characterized in that the combs have rounded portions which are formed in opposite directions or in parallel, such that the grid is formed in a hole-shaped or serpentine shape.
Selbstverständlich ist erfindungsgemäß auch eine Siebvorrichtung vorgesehen, bei der die Kämme wechselseitig abgewinkelt beziehungsweise abgebogen sind.Of course, the invention also provides a screening device, in which the combs are mutually angled or bent.
Um einen Transport des nicht gesiebten Materials in die Walze beziehungsweise in den Walzenzerkleinerer hinein besser zu ermöglichen, sind die Kämme an ihren freien Enden abgewinkelt, insbesondere in Aufstellrichtung des Walzen- zerkleinerers nach oben abgewinkelt.In order to better enable a transport of the non-sifted material into the roller or into the roller shredder, the combs are angled at their free ends, angled upwards, in particular in the installation direction of the roller crusher.
Die Kämme der Kammverlängerung können aus Flachmaterial oder aus Rundmaterial gebildet sein.The combs of the comb extension can be formed from flat material or from round material.
Bevorzugt ist es, wenn die Kämme aus Federstahl gebildet sind. Die Kämme können dabei einstϋckig oder aus zwei- oder mehrlagig übereinander angeordneten Federstahlkammelementen gebildet sein.It is preferred if the combs are formed from spring steel. The combs can be formed in one piece or from two or more layers stacked spring steel comb elements.
Die Abstände der Kämme zueinander sind, entsprechend einer Weiterbildung der Erfindung, veränderbar beziehungsweise variierbar. Die Erfindung betrifft auch einen Walzenzerkleinerer mit einer Siebvorrichtung wie zuvor beschrieben. Eine vorteilhafte Weiterbildung des erfindungsgemäßen Walzenzerkleinerers sieht vor, dass die Walze für eine Drehzahl von 20 bis 100 Umdrehungen pro Minute, bevorzugt von 40 Umdrehungen pro Minute ausgebildet ist.The distances between the combs to each other are, according to a development of the invention, changeable or variable. The invention also relates to a roller shredder with a screening device as described above. An advantageous development of the roller shredder according to the invention provides that the roller is designed for a rotational speed of 20 to 100 revolutions per minute, preferably of 40 revolutions per minute.
Die Kämme der Kammverlängerung sind in Arbeitsstellung bevorzugt unter den Gegenkämmen des Walzenzerkleinerers und weiterhin bevorzugt in den Zwischenräumen beziehungsweise unter den Zwischenräumen zwischen den Gegenkämmen angeordnet.The combs of the comb extension are preferably arranged in the working position under the counter-combs of the roller crusher and furthermore preferably in the intermediate spaces or under the spaces between the counter-combs.
Eine Weiterbildung der Erfindung sieht auch vor, dass die Kämme der Kammverlängerung direkt mit den Gegenkämmen des Walzenzerkleinerers verbunden sind.A development of the invention also provides that the combs of the comb extension are connected directly to the counter-combs of the roller shredder.
Für die Befestigung der Kammverlängerung beziehungsweise der einzelnen Kämme der Kammverlängerung ist eine Lagerung vorgesehen. Diese Lagerung ist in dem Gehäuse des Walzenzerkleinerers angeordnet und ist bevorzugt schwenkbar gelagert.For the attachment of the comb extension or the individual combs of the comb extension storage is provided. This storage is arranged in the housing of the roller crusher and is preferably pivotally mounted.
Nach einer Weiterbildung der Erfindung ist es auch vorgesehen, dass die Lagerung von Hydraulikzylindern, die an der Lagerung angreifen, bewegbar ist. Damit ist zum einen gewährleistet, dass die Kammverlängerung sich jeweils in einer optimalen Stellung bezüglich der Walze befindet und zum anderen kann damit auch, beispielsweise bei gleichzeitiger Befestigung der Gegenkämme an der Lagerung der Abstand zwischen den Schneidwerkzeugen der Walze und den Gegenkämmen beeinflusst werden.According to a development of the invention, it is also provided that the storage of hydraulic cylinders that engage the storage, is movable. This ensures, on the one hand, that the comb extension is in each case in an optimum position with respect to the roller and, on the other hand, the distance between the cutting tools of the roller and the counter-combs can thus also be influenced, for example while the counter combs are mounted on the mounting.
Die Erfindung wird nachfolgend anhand von Ausführungsbeispielen beschrieben. Es zeigen:The invention will be described below with reference to exemplary embodiments. Show it:
Fig. 1 Ausführungsform der Erfindung mit wabenförmigen Raster derFig. 1 embodiment of the invention with honeycomb grid of
Kammverlängerung; Fig. 2 weitere Ausführungsform der Erfindung mit trapezförmig gleichlaufend abgewinkelten Kämmen undComb extension; Fig. 2 further embodiment of the invention with trapezoidal co-rotating angled combs and
Fig. 3 eine aus dem Stand der Technik bekannte Siebvorrichtung mit geraden Kämmen.Fig. 3 is a known from the prior art screening device with straight ridges.
Die Fig. 1 zeigt eine Ausführungsform der Erfindung mit wabenförmigen Raster 3 der Kammverlängerung I. Die Kämme 1 sind trapezartig gegenläufig zueinander abgewinkelt, so dass ein wabenförmiges Raster 3 entsteht. Die Abwinklungen tragen das Bezugszeichen 2. Durch die Anordnung der gegenläufig trapezförmig abgebogenen Kämme 1 entsteht das Raster 3. Über dem Raster 3 beziehungsweise den Zwischenräumen zwischen den einzelnen Kämmen 1 sind die Gegenkämme 5 des Walzenzerkleinerers, der nicht dargestellt ist, angeordnet. Diese Gegenkämme 5 wirken mit den auf der Walze angeordneten Schneidwerkzeugen zusammen, derart, dass die Schneidwerkzeuge in die Zwischenräume der Gegenkämme eingreifen und somit das durch die Walze hereingeförderte Gut zwischen den Schneidwerkzeugen der Walze und den Gegenkämmen 5 zerkleinert wird. Mit dem Bezugszeichen 6 ist die Lagerung bezeichnet, an der die Kammverlängerung I sowie die Gegenkämme 5 befestigt sind. Diese Lagerung 6 ist bevorzugt schwenkbar beziehungsweise drehbar gelagert und besitzt an ihren beiden Enden Aufnahmepunkte, an denen beispielsweise Hydraulikzylinder angreifen können, um die Lagerung inklusive Gegenkamm 5 und Kammverlängerung I zu bewegen beziehungsweise einen Druck auf diese auszuüben, so dass die Kammverlängerung I beziehungsweise die Gegenkämme 5 immer in der gewünschten Einstellung verbleiben. Selbstverständlich lässt sich die Einstellung auch mittels dieser Hydraulikzylinder verändern, wodurch eine Veränderung für die Körnung des zerkleinerten Gutes erreichbar ist. Die Kämme 1 der Kammverlängerung I sind beispielsweise auswechselbar, so dass im Störfall beziehungsweise bei Zerstörung von einem einzelnen Kamm 1 dieser problemlos ausgewechselt werden kann. Des Weiteren lässt sich durch die Variation der Kämme 1 in ihrer Form und in ihrem Abstand zueinander ein anderes Raster für größere oder kleinere Körnungen problemlos erreichen. Selbstverständlich kann auch eine gesamte Kammverlängerung I für den Walzenzerkleinerer vorgehalten wer- den, der eine unterschiedliche Körnung besitzt, so dass bei einem Wechsel von Zerkleinerungsaufgaben die gesamte Kammverlängerung I inklusive des Lagers 6 und der Gegenkämme 5 wechseln lässt.Fig. 1 shows an embodiment of the invention with honeycomb grid 3 of the comb extension I. The combs 1 are trapezoidal angled in opposite directions to each other, so that a honeycomb pattern 3 is formed. By the arrangement of the counter-trapezoidal bent combs 1 creates the grid 3. About the grid 3 and the spaces between the individual combs 1, the counter combs 5 of the roller crusher, which is not shown, arranged. These counter-combs 5 cooperate with the cutting tools arranged on the roller, such that the cutting tools engage in the interstices of the counter-combs and thus the material conveyed in by the roller is comminuted between the cutting tools of the roller and the counter-combs 5. By the reference numeral 6, the storage is designated, to which the comb extension I and the counter combs 5 are attached. This storage 6 is preferably pivotally or rotatably mounted and has at its two ends receiving points where, for example hydraulic cylinders can attack to move the storage including counter comb 5 and comb extension I or exert pressure on this, so that the comb extension I or the counter combs 5 always remain in the desired setting. Of course, the setting can also be changed by means of these hydraulic cylinders, whereby a change in the grain size of the comminuted material can be achieved. The combs 1 of the comb extension I, for example, interchangeable, so that in case of failure or destruction of a single comb 1 this can be easily replaced. Furthermore, can be easily achieved by the variation of the combs 1 in their shape and at a distance to another grid for larger or smaller grains. Of course, an entire comb extension I for the shredder can be held the one who has a different grain size, so that in a change of crushing tasks, the entire comb extension I including the bearing 6 and the counter combs 5 change.
Die Fig. 2 zeigt eine weitere Ausführungsform der Erfindung mit trapezförmig . gleichlaufend abgewinkelten Kämmen 1. Durch diese Ausbildung entsteht ebenfalls ein Raster 3, das durch schlangenförmige Zwischenräume zwischen den Kämmen 1 gebildet ist. Die anderen Bezugszeichen wurden bereits bei der Fig. 1 vorgestellt und werden nicht noch einmal beschrieben.Fig. 2 shows another embodiment of the invention with a trapezoidal shape. By this training also creates a grid 3, which is formed by serpentine spaces between the combs 1. The other reference numerals have already been presented in FIG. 1 and will not be described again.
Die Fig. 3 zeigt eine Kammverlängerung I, wie sie aus dem Stand der Technik bekannt ist. Die einzelnen Kämme 1 sind dabei gerade ausgebildet, so dass ebenfalls gerade Zwischenräume beziehungsweise ein gleichlaufend paralleles Raster 3 entsteht. Die Nachteile dieser Lösung wurden eingangs beschrieben. Die Bezugszeichen bezeichnen auch hier gleiche technische Merkmale, so dass nicht noch einmal alle Bezugszeichen vorgestellt werden.Fig. 3 shows a comb extension I, as known from the prior art. The individual combs 1 are straight, so that also straight spaces or a concurrently parallel grid 3 is formed. The disadvantages of this solution have been described at the beginning. The reference numerals also refer to the same technical features, so that not all the reference numbers are presented again.
Die Erfindung wurde zuvor anhand von Ausführungsbeispielen beschrieben. Die Erfindung ist jedoch darauf nicht beschränkt. Die jetzt und mit der Anmeldung später eingereichten Ansprüche sind Versuche zur Formulierung ohne Präjudiz für die Erzielung eines weitergehenden Schutzes.The invention has been described above with reference to exemplary embodiments. However, the invention is not limited thereto. The claims now filed later and with the application are attempts to formulate without prejudice to the attainment of further protection.
Die in den abhängigen Ansprüchen angeführten Rückbeziehungen weisen auf die weitere Ausbildung des Gegenstandes des Hauptanspruchs durch die Merkmale des jeweiligen Unteranspruches hin. Jedoch sind diese nicht als ein Verzicht auf die Erzielung eines selbstständigen, gegenständlichen Schutzes für die Merkmale der rückbezogenen Unteransprüche zu verstehen. Es ist auch zu beachten, dass die in den Figuren gezeigten verschiedenen Ausgestaltungen beliebig untereinander bzw. miteinander kombinierbar sind. Bisher in den Figuren nicht gezeigte Merkmalskombinationen gelten daher als mit offenbart.The references given in the dependent claims indicate the further development of the subject matter of the main claim by the features of the respective subclaim. However, these are not to be understood as a waiver of obtaining independent, objective protection for the features of the dependent claims. It should also be noted that the various configurations shown in the figures can be combined with each other as desired or with each other. So far not shown in the figures feature combinations are therefore considered as disclosed.
Merkmale, die bislang nur in der Beschreibung offenbart wurden, können im Laufe des Verfahrens als von erfindungswesentlicher Bedeutung, zum Beispiel zur Abgrenzung vom Stand der Technik beansprucht werden. Features that have hitherto been disclosed only in the description may be claimed in the course of the method as of essential importance to the invention, for example to distinguish from the prior art.

Claims

Patentansprüche claims
1. Siebvorrichtung, bestehend aus einer Kammverlängerung (I) mit mehreren aus flexiblen Material gebildeten Kämmen (1 ), die parallel zueinander angeordnet sind, dadurch gekennzeichnet, dass die Kämme (1 ) mit Abwinklungen (2) bzw. Abrundungen versehen sind, die zur Ausbildung eines Rasters (3) zur Definition der Korngröße für das gesiebte Material dienen.1. screening device, consisting of a comb extension (I) with a plurality of flexible material formed combs (1), which are arranged parallel to each other, characterized in that the combs (1) with bends (2) or rounded portions are provided for Forming a grid (3) serve to define the grain size for the screened material.
2. Siebvorrichtung nach Anspruch 1 , dadurch gekennzeichnet, dass die Kämme (1 ) trapezartige Abwinklungen (2) besitzen.2. Screening device according to claim 1, characterized in that the combs (1) trapezoidal bends (2) have.
3. Siebvorrichtung nach einem oder beiden der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Abwinklungen (2) gegenläufig abgewinkelt sind, derart, dass das Raster (3) als ein wabenförmiges Sieb angegeben ist.3. Screening device according to one or both of the preceding claims, characterized in that the bends (2) are angled in opposite directions, such that the grid (3) is indicated as a honeycomb-shaped sieve.
4. Siebvorrichtung nach einem oder beiden der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Raster (3) aufgrund unterschiedlicher Kammgrößen veränderbar ist, derart dass durch unterschiedliche Größen unterschiedliche Körnungen definiert werden.4. Screening device according to one or both of the preceding claims, characterized in that the grid (3) is variable due to different comb sizes, so that different grains are defined by different sizes.
5. Siebvorrichtung nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Abwinklungen (2) gleichläufig, bevorzugt parallel verlaufen, so dass das Raster (3) mit trapezförmig abgewinkelten Schlitzen angegeben ist.5. Screening device according to one or more of the preceding claims, characterized in that the angled portions (2) in the same direction, preferably parallel, so that the grid (3) is indicated with trapezoidal angled slots.
6. Siebvorrichtung nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Abwinklungen (2) versetzt zueinander verlaufen, so dass die Schlitze ungleichmäßig ausgebildet sind. 6. Screening device according to one or more of the preceding claims, characterized in that the angled portions (2) offset from each other, so that the slots are formed unevenly.
7. Siebvorrichtung nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Kämme (1 ) Abrundungen aufweisen, die gegenläufig oder gleichlaufend parallel ausgebildet sind, derart dass das Raster (3) lochförmig bzw. schlangenförmig ausgebildet ist.7. Screening device according to one or more of the preceding claims, characterized in that the combs (1) have rounded portions, which are formed in opposite directions or concurrently parallel, such that the grid (3) is formed hole-shaped or serpentine.
8. Siebvorrichtung nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Kämme (1 ) wechselweise abgewinkelt bzw. abgebogen sind.8. Screening device according to one or more of the preceding claims, characterized in that the combs (1) are alternately angled or bent.
9. Siebvorrichtung nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Kämme (1 ) an ihren freien Enden (4) abgewinkelt, insbesondere in Aufstellrichtung nach oben abgewinkelt sind.9. Screening device according to one or more of the preceding claims, characterized in that the combs (1) angled at their free ends (4), in particular in the erecting direction are angled upwards.
10. Siebvorrichtung nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Kämme (1 ) aus Flachmaterial gebildet sind.10. Screening device according to one or more of the preceding claims, characterized in that the combs (1) are formed from flat material.
11. Siebvorrichtung nach einem oder mehreren der vorhergehenden Ansprüche 1 bis 9, dadurch gekennzeichnet, dass die Kämme (1 ) aus Rundmaterial gebildet sind.11. Screening device according to one or more of the preceding claims 1 to 9, characterized in that the combs (1) are formed from round material.
12. Siebvorrichtung nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Kämme (1 ) aus Federstahl gebildet sind.12. Screening device according to one or more of the preceding claims, characterized in that the combs (1) are formed from spring steel.
13. Siebvorrichtung nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Kämme (1 ) einstückig oder aus zwei- oder mehrlagig übereinander angeordneten Federstahlkammelementen gebildet sind.13. Screening device according to one or more of the preceding claims, characterized in that the combs (1) are formed in one piece or from two or more layers superimposed spring steel comb elements.
14. Siebvorrichtung nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Abstände der Kämme (1 ) zueinander veränderbar bzw. variierbar sind. 14. Screening device according to one or more of the preceding claims, characterized in that the distances between the combs (1) are mutually variable or variable.
15. Walzenzerkleinerer mit einer Siebvorrichtung nach einem oder mehreren der vorhergehenden Ansprüche.15. Roller shredder with a screening device according to one or more of the preceding claims.
16. Walzenzerkleinerer nach Anspruch 15, dadurch gekennzeichnet, dass die Walze für eine Drehzahl von 20 bis zu 100 U/min, bevorzugt von 40 U/min ausgebildet ist.16. roller shredder according to claim 15, characterized in that the roller for a speed of 20 to 100 U / min, preferably of 40 U / min is formed.
17. Walzenzerkleinerer nach einem oder beiden der vorhergehenden Ansprüche 15 und 16, dadurch gekennzeichnet, dass in Arbeitsstellung die Kämme (1 ) der Kammverlängerung (I) unter den Gegenkämmen (5) des Walzenzerkleinerers, bevorzugt in den Zwischenräumen zwischen den Gegenkämmen (5) angeordnet sind.17. Roller shredder according to one or both of the preceding claims 15 and 16, characterized in that in the working position, the combs (1) of the comb extension (I) under the counter-combs (5) of the roller crusher, preferably in the spaces between the counter-combs (5) are.
18. Walzenzerkleinerer nach einem oder mehreren der vorhergehenden Ansprüche 15 bis 17, dadurch gekennzeichnet, dass die Kämme (1 ) der Kammverlängerung (I) direkt mit den Gegenkämmen (5) des Walzenzerkleinerers verbunden sind.18. Roller shredder according to one or more of the preceding claims 15 to 17, characterized in that the combs (1) of the comb extension (I) are connected directly to the counter-combs (5) of the roller shredder.
19. Walzenzerkleinerer nach einem oder mehreren der vorhergehenden Ansprüche 15 bis 18, dadurch gekennzeichnet, dass eine Lagerung (6) für die Kammverlängerung (I) vorgesehen ist.19. Roller shredder according to one or more of the preceding claims 15 to 18, characterized in that a bearing (6) for the comb extension (I) is provided.
20. Walzenzerkleinerer nach Ansprüche 19, dadurch gekennzeichnet, dass die Lagerung (6) von Hydraulikzylindern, die an der Lagerung angreifen bewegbar ist. 20. Roller shredder according to claims 19, characterized in that the bearing (6) of hydraulic cylinders which engage the bearing is movable.
EP06761978A 2005-06-08 2006-06-07 Screening device Not-in-force EP1909976B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE202005009043 2005-06-08
DE202006003533U DE202006003533U1 (en) 2005-06-08 2006-03-03 screening device
PCT/EP2006/005419 WO2006131333A2 (en) 2005-06-08 2006-06-07 Screening device

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EP1909976A2 true EP1909976A2 (en) 2008-04-16
EP1909976B1 EP1909976B1 (en) 2012-03-14

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US (1) US7992812B2 (en)
EP (1) EP1909976B1 (en)
AT (1) ATE549098T1 (en)
CA (1) CA2610974C (en)
DE (1) DE202006003533U1 (en)
WO (1) WO2006131333A2 (en)

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WO2006131333A2 (en) 2006-12-14
US20090145812A1 (en) 2009-06-11
DE202006003533U1 (en) 2006-10-19
US7992812B2 (en) 2011-08-09
WO2006131333A3 (en) 2007-04-26
EP1909976B1 (en) 2012-03-14
ATE549098T1 (en) 2012-03-15
CA2610974C (en) 2011-11-01
CA2610974A1 (en) 2006-12-14

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