EP0857104B1 - Pelletising device - Google Patents
Pelletising device Download PDFInfo
- Publication number
- EP0857104B1 EP0857104B1 EP96934174A EP96934174A EP0857104B1 EP 0857104 B1 EP0857104 B1 EP 0857104B1 EP 96934174 A EP96934174 A EP 96934174A EP 96934174 A EP96934174 A EP 96934174A EP 0857104 B1 EP0857104 B1 EP 0857104B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- casing
- axis
- openings
- pressing
- pelletizing device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
- B30B11/22—Extrusion presses; Dies therefor
- B30B11/26—Extrusion presses; Dies therefor using press rams
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
- B30B11/20—Roller-and-ring machines, i.e. with roller disposed within a ring and co-operating with the inner surface of the ring
- B30B11/201—Roller-and-ring machines, i.e. with roller disposed within a ring and co-operating with the inner surface of the ring for extruding material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
- B30B11/20—Roller-and-ring machines, i.e. with roller disposed within a ring and co-operating with the inner surface of the ring
- B30B11/201—Roller-and-ring machines, i.e. with roller disposed within a ring and co-operating with the inner surface of the ring for extruding material
- B30B11/207—Feed means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
- B30B11/22—Extrusion presses; Dies therefor
- B30B11/228—Extrusion presses; Dies therefor using pressing means, e.g. rollers moving over a perforated die plate
Definitions
- the invention relates to a pelletizing device for loose material, in particular dry waste material, with a hollow cylindrical housing that has an axis and has radial openings in the housing wall that produce a pressure resistance, with a drive element rotating in the housing around the housing axis, with one rotating in the housing about an axis parallel to the housing axis Expressing element that surrounds the drive element and with radial to the axis of the Squeezing element is provided with radially protruding ram, with a Gear, which leads the extrusion element so that it rotates around the housing axis so that Press rams with play into the openings in the housing wall, taking them press the material outwards and pull back out of the openings, and with a feed channel for the material to be pelletized into the housing.
- Such a pelletizing device is known for example from DE-B 1222895.
- the Press-out element has an axis of rotation parallel to the lying housing axis, and is provided with a variety of conical ram, so that by gradually feed material into the tub from the side Press stamping is pressed out through the housing openings.
- the between material lying in the openings in the tub can practically not be detected be, so that there is a risk that between the tub and the Build up the press-out element blocking material layers.
- US-A 3 490 390 shows a pelletizer, the vertical axes, one Has housing ring with horizontal bores and one or two stamp rollers, whose diameter is smaller than the radius of the housing ring.
- the stamp of the Rollers engage gear-like in the conically widened nozzles without play, causing the transmission of rotary motion between the case ring and each Stamp roller is achieved.
- An improved pelleting device is now possible characterized in that the axes of the housing and the pressing element are vertical run that the openings in the housing wall in at least one horizontal Level are evenly distributed, and that the feed channel above the Press stamp in the space between the housing and the material all around distributing extrusion opens.
- the vertical arrangement of the housing axis and the drive element will Material fed from above horizontally on all sides into the all around in the housing wall distributed openings depressed. This improves the load on the individual parts the device.
- the circularly guided squeezing element can be used in a further embodiment Be provided with stirring blades, with which the supplied, loose material better on the individual openings of the housing is distributed, so that a more uniform Pelleting takes place.
- the press ram and the openings also in several radial planes be arranged.
- the press rams are preferably interchangeable and / or adjustable in length provided, the length setting changes the immersion depth in the openings. Interchangeable and / or adjustable in length are preferably in the openings Nozzles used, their length setting changes the pressing resistance.
- the Nozzles like the ram, can be made in particular with respect to the material to be pelletized consists of inert material. The materials can use it selected and changed according to the requirements especially corrosion-resistant, abrasion-resistant, etc. So is suitable for the press ram especially a stainless steel and a hard bronze for the nozzles.
- a pressing resistance is necessary, which, of course, in order To avoid damage to the device, must not be too high.
- a preferred embodiment therefore provides that a in the outlet area of each nozzle Pressure resistance regulating element is provided. If the pressing resistance becomes too high, the control element yields, which increases the outlet cross section and the pressing resistance is reduced again.
- the control element can be in one project in particular adjustable basic position inwards, and is in particular elastic applied. In order to facilitate the introduction of the material, in a further preferred embodiment of the inlet area of the nozzle up to Extend control element.
- a relatively high compression of the waste material is required for pelletizing, in particular, dry waste material, for example cardboard or paper dust, wood chips, etc., into fuel.
- Pellets from cardboard or paper dust should have a density of at least 1.3 kg / dm 3 , in particular 1.5 kg / dm 3 , which can be achieved with nozzles with a diameter of about 2 cm with pressing forces of 150 to 200 kN.
- FIGS. 1 to 4 A first embodiment of a pelletizing device is shown in FIGS. 1 to 4.
- a hollow cylindrical, device-fixed housing 1 has a vertical axis 5, and is at the bottom by a base plate 2 and at the top by a cover plate 25 (FIG. 2) closed.
- a drive element 4 has two bearing pins 3, which in the Base plate 2 and the cover plate 25 centrally in the axis 5 of the housing 1 are stored.
- a drive (not shown) is assigned to the upper journal 3, however, the bottom journal 3 can instead pass through the base plate 2 and a drive can be provided there.
- the drive element 4 between the two Bearing pin 3 is cylindrical and has an axis 6 which is related to axis 5 of the Housing 1 and the bearing pin 3 runs parallel.
- the extrusion element 7 On the drive element 4 is a also hollow cylindrical extrusion 7 rotatably mounted.
- the extrusion element 7 carries a lower ring of outwardly protruding ram 9, which in Squeezing element 7 fixed punch sleeves 8 are held adjustable in length externally toothed wheel 22 at the upper end, and outwardly projecting vanes 17.
- the externally toothed wheel 22 engages due to the eccentric arrangement of the Squeezing element 7 only over part of its circumference in an internal toothing fixed to the housing 23, so that the extrusion element 7 when the drive shaft 4 rotates the housing axis 5 does not rotate, but on the drive shaft 4 around it Axis 6 rotates and encircles the housing axis 5, the externally toothed wheel 22 rolls in the internal toothing 23.
- the housing 1 has at the height of the press ram radial openings 10 into which nozzles 11 are inserted.
- the number of openings 10 by one larger than the number of Press die 8, which gradually turns into the rotation of the pressing element 7 Enter openings 10 and withdraw from them again.
- the one to be pelletized Material is in the space 21 between the housing 1 and the extrusion 7th laterally through a feed channel 19, in particular equipped with a screw conveyor introduced above the ram 8 and by the circular movement of the Expressing element, supported by the projecting wings 17 all around Distributed openings 10 of the housing.
- the press rams 9 each capture a small one Amount of material to be pelletized and insert it into the opening 10, being here sufficient play is available so that the ram 9 the edges of the openings do not touch.
- the openings 10 then additionally expand outwards, so that the introduction of the material is not hindered.
- By adjusting the length of the Press 9 can adjust their immersion depth in the openings 10. Only in The outlet area of the nozzles 11 screwed into the openings 10 tapers Passage cross section and here the required pressing resistance is built up.
- the 2 and 3 show in detail a first embodiment of a nozzle 11 with one Axis 13 pivotable control element 12 for the pressing resistance, which by a Nozzle insert is formed, the basic position of which is by means of a handwheel 16 is adjustable.
- the handwheel 16 is in an approximately U-shaped or bracket-shaped bracket 15 rotatably mounted, the side legs of which penetrate or grasp the nozzle 11 and are supported on the opposite side by springs 14.
- the particular one even nozzle insert made of an elastic material is so about Axis 13 pivotable that the passage cross-section in the area of axis 13 essentially not changed when the control element 12 evades.
- the purpose is the area of the nozzle insert lying inwards from the axis 13 beveled or rounded (Fig. 2).
- the lower bearing of the drive element 3 is covered by a sealing washer 18.
- the lower bearing 20 of the pressing element 7 is by a sealing element 27 enclosing the drive element 4 against penetration Material covered.
- control element 31 in the outlet area of the nozzle 11 provided, which is formed by a sleeve made of plastic.
- An expandable ring 32 is provided, the inner diameter of which is smaller than is the diameter of the sleeve.
- a suitable rubber-elastic plastic can for example, have a Shore hardness of 70 to 80.
- the ring 32 by one metallic ring 33 reinforced, which rests on the outside of the expandable ring 32 and on the Nozzle 11 or on the housing 1 is fixed.
- the externally toothed wheel 22 is preferably designed as a chain wheel, the as Internal toothing 23 is assigned a track of a double roller chain.
- the second track the double roller chain encloses a second externally toothed sprocket 24, the is fixed to the housing 1 via a support ring 28. Between the sprocket 24 and the wheel 22 is also provided with a seal 26.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Processing Of Solid Wastes (AREA)
Description
Die Erfindung betrifft eine Pelletiervorrichtung für loses Material, insbesondere trockenes Abfallmaterial, mit einem hohlzylindrischen Gehäuse, das eine Achse und einen Preßwiderstand erzeugende radiale Öffnungen in der Gehäusewand aufweist, mit einem sich im Gehäuse um die Gehäuseachse drehenden Antriebselement, mit einem sich im Gehäuse um eine zur Gehäuseachse parallele Achse drehenden Auspreßelement, das das Antriebselement umgibt und mit radial zur Achse des Auspreßelementes strahlenförmig abstehenden Preßstempeln versehen ist, mit einem Getriebe, das das Auspreßelement so um die Gehäuseachse kreisend führt, daß die Preßstempel mit Spiel in die Öffnungen in der Gehäusewand eindringen, wobei sie das Material nach außen pressen, und sich aus den Öffnungen wieder zurückziehen, und mit einem Zuführkanal für das zu pelletierende Material ins Gehäuse.The invention relates to a pelletizing device for loose material, in particular dry waste material, with a hollow cylindrical housing that has an axis and has radial openings in the housing wall that produce a pressure resistance, with a drive element rotating in the housing around the housing axis, with one rotating in the housing about an axis parallel to the housing axis Expressing element that surrounds the drive element and with radial to the axis of the Squeezing element is provided with radially protruding ram, with a Gear, which leads the extrusion element so that it rotates around the housing axis so that Press rams with play into the openings in the housing wall, taking them press the material outwards and pull back out of the openings, and with a feed channel for the material to be pelletized into the housing.
Eine derartige Pelletiervorrichtung ist beispielsweise aus der DE-B 1222895 bekannt. Dort ist das Gehäuse, dessen Achse horizontal verläuft, durch eine die Öffnungen aufweisende Wanne und einen die Wanne abdeckenden Deckel gebildet. Das Auspreßelement weist eine zur liegenden Gehäuseachse parallele Drehachse auf, und ist mit einer Vielzahl von konischen Preßstempeln versehen, sodaß das durch einen seitlichen Schacht in die Wanne zugeführte Material nach und nach von den Preßstempeln durch die Gehäuseöffnungen nach außen gedrückt wird. Das zwischen den Öffnungen in der Wanne liegende Material kann dabei praktisch nicht erfaßt werden, sodaß die Gefahr besteht, daß sich zwischen der Wanne und dem Auspreßelement blockierende Materialschichten aufbauen. Zur Sicherstellung des Spiels, mit dem die Preßstempel in die Öffnungen der Wanne eintreten, wird das Antriebselement durch die beidseitigen Exzenterumlaufgetriebe kreisend geführt, die jeweils ein mit dem Auspreßelement verbundenes, außenverzahntes Rad aufweisen, das in einem gehäusefesten innenverzahnten Ring abrollt. Ein derartiges Getriebe weist bei einem geringen Platzbedarf ein sehr hohes Untersetzungsverhältnis auf, das sich nach der Differenz der Zähnezahlen richtet. Such a pelletizing device is known for example from DE-B 1222895. There is the housing, the axis of which runs horizontally, through one of the openings having tub and a cover covering the tub formed. The Press-out element has an axis of rotation parallel to the lying housing axis, and is provided with a variety of conical ram, so that by gradually feed material into the tub from the side Press stamping is pressed out through the housing openings. The between material lying in the openings in the tub can practically not be detected be, so that there is a risk that between the tub and the Build up the press-out element blocking material layers. To ensure the Game with which the ram enters the openings in the tub, it will Drive element guided by the eccentric planetary gear on both sides, the each have an externally toothed wheel connected to the extrusion element, that rolls in a housing-fixed internally toothed ring. Such a transmission has a very high reduction ratio with a small space requirement, the depends on the difference in the number of teeth.
Die US-A 3 490 390 zeigt eine Pelletiervorrichtung, die vertikale Achsen, einen Gehäusering mit horizontalen Bohrungen und eine oder zwei Stempelwalzen aufweist, deren Durchmesser kleiner als der Radius des Gehäuseringes ist. Die Stempel der Walzen greifen ohne Spiel zahnradartig in die konisch aufgeweiteten Düsen ein, wodurch die Übertragung der Drehbewegung zwischen dem Gehäusering und jeder Stempelwalze erzielt wird.US-A 3 490 390 shows a pelletizer, the vertical axes, one Has housing ring with horizontal bores and one or two stamp rollers, whose diameter is smaller than the radius of the housing ring. The stamp of the Rollers engage gear-like in the conically widened nozzles without play, causing the transmission of rotary motion between the case ring and each Stamp roller is achieved.
Eine erfindungsgemäß verbesserte Pelletiervorrichtung ist nun dadurch gekennzeichnet, daß die Achsen des Gehäuses und des Auspreßelementes vertikal verlaufen, daß die Öffnungen in der Gehäusewand in zumindest einer horizontalen Ebene gleichmäßig verteilt angeordnet sind, und daß der Zuführkanal oberhalb der Preßstempel in den Raum zwischen dem Gehäuse und dem das Material rundum verteilenden Auspreßelement mündet.An improved pelleting device according to the invention is now possible characterized in that the axes of the housing and the pressing element are vertical run that the openings in the housing wall in at least one horizontal Level are evenly distributed, and that the feed channel above the Press stamp in the space between the housing and the material all around distributing extrusion opens.
Durch die vertikale Anordnung der Gehäuseachse und des Antriebselementes wird das von oben zugeführte Material allseitig horizontal in die in der Gehäusewand rundum verteilten Öffnungen eingedrückt. Dies verbessert die Belastung auf die einzelnen Teile der Vorrichtung.The vertical arrangement of the housing axis and the drive element will Material fed from above horizontally on all sides into the all around in the housing wall distributed openings depressed. This improves the load on the individual parts the device.
Das kreisend geführte Auspreßelement kann in einer weiteren Ausführung mit Rührflügeln vesehen sein, mit denen das zugeführte, lose Material besser auf die einzelnen Öffnungen des Gehäuses verteilt wird, sodaß eine gleichmäßigere Pelletierung erfolgt. The circularly guided squeezing element can be used in a further embodiment Be provided with stirring blades, with which the supplied, loose material better on the individual openings of the housing is distributed, so that a more uniform Pelleting takes place.
Da die Vorrichtung insbesondere loses, trockenes Material pelletiert, können in einer weiteren Ausführung die Preßstempel und die Öffnungen auch in mehreren Radialebenen angeordnet sein.Since the device pelletizes in particular loose, dry material, in one further execution the press ram and the openings also in several radial planes be arranged.
Die Preßstempel sind bevorzugt auswechselbar und/oder in der Länge einstellbar vorgesehen, wobei die Längeneinstellung die Eintauchtiefe in die Öffnungen verändert. In die Öffnungen sind bevorzugt auswechselbare und/oder in der Länge einstellbare Düsen eingesetzt, wobei deren Längeneinstellung den Preßwiderstand verändert. Die Düsen können ebenso wie die Preßstempel insbesondere aus einem in bezug auf das zu pelletierende Material inerten Werkstoff bestehen. Die Materialien können damit den Anforderungen entsprechend ausgewählt und auch gewechselt werden, also insbesondere korrosionsfest, abriebfest usw. sein. So eignet sich für die Preßstempel besonders ein rostfreier Stahl und für die Düsen eine Hartbronze.The press rams are preferably interchangeable and / or adjustable in length provided, the length setting changes the immersion depth in the openings. Interchangeable and / or adjustable in length are preferably in the openings Nozzles used, their length setting changes the pressing resistance. The Nozzles, like the ram, can be made in particular with respect to the material to be pelletized consists of inert material. The materials can use it selected and changed according to the requirements especially corrosion-resistant, abrasion-resistant, etc. So is suitable for the press ram especially a stainless steel and a hard bronze for the nozzles.
Für die Pelletierung ist ein Preßwiderstand notwendig, der natürlich, um Beschädigungen der Vorrichtung zu vermeiden, nicht zu hoch werden darf. Eine bevorzugte Ausführung sieht daher vor, daß im Austrittsbereich jeder Düse ein den Preßwiderstand regelndes Element vorgesehen ist. Wird der Preßwiderstand zu hoch, so gibt das Regelelement nach, wodurch sich der Austrittsquerschnitt vergrößert und der Preßwiderstand wieder verringert wird. Das Regelelement kann in einer insbesondere einstellbaren Grundstellung nach innen vorstehen, und ist insbesondere elastisch beaufschlagt. Um die Einführung des Materials zu erleichtem, kann sich in einer weiteren bevorzugten Ausführung der Eintrittsbereich der Düse bis zum Regelelement hin erweitern.For the pelletizing a pressing resistance is necessary, which, of course, in order To avoid damage to the device, must not be too high. A preferred embodiment therefore provides that a in the outlet area of each nozzle Pressure resistance regulating element is provided. If the pressing resistance becomes too high, the control element yields, which increases the outlet cross section and the pressing resistance is reduced again. The control element can be in one project in particular adjustable basic position inwards, and is in particular elastic applied. In order to facilitate the introduction of the material, in a further preferred embodiment of the inlet area of the nozzle up to Extend control element.
Nachstehend wird nun die Erfindung anhand der Figuren der beiliegenden Zeichnungen naher beschrieben:The invention based on the figures of the enclosed Drawings described in more detail:
Es zeigt:
Für eine Pelletierung von insbesondere trockenem Abfallmaterial, beispielsweise von Karton- bzw. Papierstaub, Holzspänen usw. zu Brennmaterial, ist eine relativ hohe Verdichtung des Abfallmaterials erforderlich. Pellets aus Karton- bzw. Papierstaub sollten eine Dichte von mindestens 1,3 kg/dm3, insbesondere 1,5 kg/dm3 aufweisen, die bei Düsen mit etwa 2 cm Durchmesser mit Preßkräften von 150 bis 200 kN erzielbar ist.A relatively high compression of the waste material is required for pelletizing, in particular, dry waste material, for example cardboard or paper dust, wood chips, etc., into fuel. Pellets from cardboard or paper dust should have a density of at least 1.3 kg / dm 3 , in particular 1.5 kg / dm 3 , which can be achieved with nozzles with a diameter of about 2 cm with pressing forces of 150 to 200 kN.
Eine erste Ausführung einer Pelletiervorrichtung ist in den Fig. 1 bis 4 gezeigt. Ein
hohlzylindrisches, vorrichtungsfestes Gehäuse 1 weist eine vertikale Achse 5 auf, und
ist unten durch eine Bodenplatte 2 und oben durch eine Deckplatte 25 (Fig. 2)
geschlossen. Ein Antriebselement 4 weist zwei Lagerzapfen 3 auf, die in der
Bodenplatte 2 und der Deckplatte 25 zentrisch in der Achse 5 des Gehäuses 1
gelagert sind. Dem oberen Lagerzapfen 3 ist ein nicht gezeigter Antrieb zugeordnet,
jedoch kann stattdessen der untere Lagerzapfen 3 die Bodenplatte 2 durchsetzen und
dort ein Antrieb vorgesehen sein. Das Antriebselement 4 zwischen den beiden
Lagerzapfen 3 ist zylindrisch und weist eine Achse 6 auf, die zur Achse 5 des
Gehäuses 1 und der Lagerzapfen 3 parallel verläuft. Auf dem Antriebselement 4 ist ein
ebenfalls hohlzylindrisches Auspreßelement 7 drehbar gelagert. Das Auspreßelement
7 trägt einen unteren Kranz von nach außen abstehenden Preßstempeln 9, die in am
Auspreßelement 7 fixierten Stempelhülsen 8 in der Länge einstellbar gehalten sind, ein
außenverzahntes Rad 22 am oberen Ende, und nach außen abstehende Flügel 17.
Das außenverzahnte Rad 22 greift aufgrund der exzentrischen Anordnung des
Auspreßelementes 7 nur über einen Teil seines Umfanges in eine gehäusefeste Innenverzahnung
23 ein, sodaß das Auspreßelement 7 bei Drehung der Antriebswelle 4 um
die Gehäuseachse 5 sich nicht mitdreht, sondern sich auf der Antriebswelle 4 um seine
Achse 6 verdreht und die Gehäuseachse 5 umkreist, wobei das außenverzahnte Rad
22 in der Innenverzahnung 23 abrollt. Das Gehäuse 1 weist auf der Höhe des Preßstempelkranzes
radiale Öffnungen 10 auf, in die Düsen 11 eingesetzt sind. In der
dargestellten Ausführung ist die Zahl der Öffnungen 10 um eins größer als die Zahl der
Preßstempel 8, die bei der Drehung des Auspreßelementes 7 nach und nach in die
Öffnungen 10 eintreten und sich wieder aus diesen zurückziehen. Das zu pelletierende
Material wird in den Raum 21 zwischen dem Gehäuse 1 und dem Auspreßelement 7
seitlich durch einen insbesondere mit einer Förderschnecke bestückten Zuführkanal 19
oberhalb der Preßstempel 8 eingebracht und durch die kreisende Bewegung des
Auspreßelementes, unterstützt durch die abstehenden Flügel 17 rundum auf alle
Öffnungen 10 des Gehäuses verteilt. Die Preßstempel 9 erfassen jeweils eine kleine
Menge des zu pelletierenden Materials und führen es in die Öffnung 10 ein, wobei hier
ausreichend Spiel vorhanden ist, sodaß die Preßstempel 9 die Ränder der Öffnungen
nicht berühren. Die Öffnungen 10 erweitern sich dann zusätzlich nach außen, sodaß
die Einbringung des Materials nicht behindert wird. Durch die Längeneinstellung der
Preßstempel 9 läßt sich ihre Eintauchtiefe in die Öffnungen 10 einstellen. Erst im
Austrittsbereich der in die Öffnungen 10 eingeschraubten Düsen 11 verjüngt sich der
Durchtrittsquerschnitt und hier wird der erforderliche Preßwiderstand aufgebaut. Die
Fig. 2 und 3 zeigen im Detail eine erste Ausführung einer Düse 11 mit einem um eine
Achse 13 schwenkbaren Regelelement 12 für den Preßwiderstand, das durch einen
Düseneinsatz gebildet ist, dessen Grundstellung mittels eines Handrades 16
einstellbar ist. Das Handrad 16 ist in einem etwa U- oder klammerförmigen Bügel 15
drehbar gelagert, dessen Seitenschenkel die Düse 11 durchsetzen oder umgreifen und
sich an der gegenüberliegenden Seite über Federn 14 abstützen. Der insbesondere
selbst aus einem elastischen Material bestehende Düseneinsatz ist dabei so um die
Achse 13 schwenkbar, daß im Bereich der Achse 13 der Durchtrittsquerschnitt sich
beim Ausweichen des Regelelementes 12 im wesentlichen nicht verändert. Zu diesem
Zweck ist der von der Achse 13 nach innen liegende Bereich des Düseneinsatzes
abgeschrägt bzw. gerundet (Fig. 2). Das untere Lager des Antriebselementes 3 ist
durch eine Dichtscheibe 18 abgedeckt. Das untere Lager 20 des Auspreßelementes 7
ist durch eine das Antriebselement 4 umschließende Dichtung 27 gegen eindringendes
Material abgedeckt.A first embodiment of a pelletizing device is shown in FIGS. 1 to 4. A
hollow cylindrical, device-
In der Ausführung nach Fig. 4 ist im Austrittsbereich der Düse 11 ein Regelelement 31
vorgesehen, das durch eine Hülse aus Kunststoff gebildet ist. Am Austrittsende der
Hülse ist ein aufweitbarer Ring 32 vorgesehen dessen Innendurchmesser kleiner als
der Durchmesser der Hülse ist. Ein geeigneter gummielastischer Kunststoff kann
beispielsweise eine Shore-Härte von 70 bis 80 aufweisen. Der Ring 32 durch einen
metallischen Ring 33 verstärkt, der außen am aufweitbaren Ring 32 anliegt und an der
Düse 11 bzw. am Gehäuse 1 fixiert ist.4, there is a
Das außenverzahnte Rad 22 ist bevorzugt als Kettenrad ausgebildet, dem als
Innenverzahnung 23 eine Spur einer Doppelrollenkette zugeordnet ist. Die zweite Spur
der Doppelrollenkette umschließt ein zweites außenverzahntes Kettenzahnrad 24, das
über einen Tragring 28 am Gehäuse 1 fixiert ist. Zwischen dem Kettenzahnrad 24 und
dem Rad 22 ist ebenfalls eine Dichtung 26 vorgesehen.The externally
Claims (7)
- Pelletizing device for loose material, especially dry waste material, having a hollow cylindrical casing (1), which has an axis (5) and radial openings (10) in the casing wall which generate a pressing resistance, having a drive element (4) rotating in the casing (1) about the casing axis (5), having an extrusion element (7) surrounding the drive element (4), rotating in the casing (1) about an axis (6), which is parallel to the casing axis (5), and being provided with pressing plungers (9), which are arranged radially like rays with respect to the axis (6) of the extrusion element (7), having a drive which rotates the extrusion element (7) around the casing axis (5), so that the pressing plungers (9) penetrate into the openings (10) in the casing wall, said pressing plungers pressing the material outward and withdrawing from the openings (10) again, and having a feed channel (19) into the casing (1) for the material to be pelleted, characterized in that the axes (5, 6) of the casing (1) and of the extrusion element (7) run vertically, that the openings (10) in the casing wall are arranged distributed uniformly in at least one horizontal radial plane, and that the feed channel (19) opens above the pressing plungers (9) into the space (21) between the casing (1) and the extrusion element (7), which distributes the material all around.
- Pelletizing device according to claim 1, characterized in that vanes for distributing the loose material in the casing (1) are assigned to the revolvingly arranged extrusion element (7).
- Pelletizing device according to claims 1 or 2, characterized in that pressing plungers (9) which are replaceable and/or of adjustable length are provided.
- Pelletizing device according to one of claims 1 to 3, characterized in that nozzles (11) which are replaceable and/or of adjustable length are inserted into the openings (10).
- Pelletizing device according to claim 4, characterized in that an element (12, 31) that regulates the pressing resistance is provided in the outlet region of each nozzle (11).
- Pelletizing device according to claim 4 or 5, characterized in that the nozzles (11) have a cross section that widens outward as far as the regulating element (12, 31).
- Pelletizing device according to claims 4 to 6, characterized in that the nozzle (11) and/or the regulating element (12, 31) consists of a material that is inert with respect to the material to be pelletized.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT1776/95 | 1995-10-27 | ||
| AT0177695A AT403442B (en) | 1995-10-27 | 1995-10-27 | PELLETIZING DEVICE |
| PCT/AT1996/000206 WO1997016305A1 (en) | 1995-10-27 | 1996-10-25 | Pelletising device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0857104A1 EP0857104A1 (en) | 1998-08-12 |
| EP0857104B1 true EP0857104B1 (en) | 1999-04-07 |
Family
ID=3520742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP96934174A Expired - Lifetime EP0857104B1 (en) | 1995-10-27 | 1996-10-25 | Pelletising device |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0857104B1 (en) |
| AT (1) | AT403442B (en) |
| AU (1) | AU7265296A (en) |
| DE (1) | DE59601625D1 (en) |
| WO (1) | WO1997016305A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015044050A1 (en) | 2013-09-26 | 2015-04-02 | Wettstein Karl | Pelleting device |
| CN107009661A (en) * | 2017-04-28 | 2017-08-04 | 内蒙古科技大学 | A kind of sliding block plunger type biomass forming machine |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1286891B1 (en) * | 1996-12-04 | 1998-07-17 | Oma Srl | EQUIPMENT FOR COMPACTING SOLID MATERIALS |
| DE19836467C2 (en) * | 1998-08-12 | 2000-11-09 | Herbert Huettlin | Method and device for producing extrudate particles by punching |
| DK178681B1 (en) * | 2015-05-07 | 2016-11-07 | C F Nielsen As | Apparatus for production of compressed biomass members and method for start-up of the apparatus |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR954689A (en) * | 1950-01-04 | |||
| FR875544A (en) * | 1941-05-19 | 1942-09-25 | Olier Sa Ets A | Agglomerate press |
| FR918288A (en) * | 1945-08-07 | 1947-02-04 | Further training provided to the sectors, in particular to the sectors for agglomerate presses | |
| DE1226354B (en) * | 1961-04-13 | 1966-10-06 | John Deere Lanz Ag | Feed cake press for agricultural crops such as hay or the like. |
| DE1222895B (en) * | 1963-08-12 | 1966-08-18 | Max Weber | Device for the production of granules |
| US3490390A (en) * | 1968-02-06 | 1970-01-20 | Randmaker Implements Proprieta | Pelleting machines |
| FR2059837A5 (en) * | 1970-06-25 | 1971-06-04 | Gondard Sa | Forming granulates from forage as cattle food |
| DK140512B (en) * | 1976-11-16 | 1979-09-24 | Arne Moeller | Press to shred the cells in green crops. |
| EP0126485A1 (en) * | 1983-05-24 | 1984-11-28 | Johann Sulzberger | Pellet press |
-
1995
- 1995-10-27 AT AT0177695A patent/AT403442B/en not_active Expired - Fee Related
-
1996
- 1996-10-25 WO PCT/AT1996/000206 patent/WO1997016305A1/en active IP Right Grant
- 1996-10-25 DE DE59601625T patent/DE59601625D1/en not_active Expired - Lifetime
- 1996-10-25 EP EP96934174A patent/EP0857104B1/en not_active Expired - Lifetime
- 1996-10-25 AU AU72652/96A patent/AU7265296A/en not_active Abandoned
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015044050A1 (en) | 2013-09-26 | 2015-04-02 | Wettstein Karl | Pelleting device |
| CN107009661A (en) * | 2017-04-28 | 2017-08-04 | 内蒙古科技大学 | A kind of sliding block plunger type biomass forming machine |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0857104A1 (en) | 1998-08-12 |
| AU7265296A (en) | 1997-05-22 |
| DE59601625D1 (en) | 1999-05-12 |
| WO1997016305A1 (en) | 1997-05-09 |
| ATA177695A (en) | 1997-07-15 |
| AT403442B (en) | 1998-02-25 |
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