EP1477296B1 - Screw compactor - Google Patents

Screw compactor Download PDF

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Publication number
EP1477296B1
EP1477296B1 EP04006570A EP04006570A EP1477296B1 EP 1477296 B1 EP1477296 B1 EP 1477296B1 EP 04006570 A EP04006570 A EP 04006570A EP 04006570 A EP04006570 A EP 04006570A EP 1477296 B1 EP1477296 B1 EP 1477296B1
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EP
European Patent Office
Prior art keywords
screw
hole
container
gap
conveying screw
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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
Application number
EP04006570A
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German (de)
French (fr)
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EP1477296A2 (en
EP1477296A3 (en
Inventor
Helumt Palicka
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Umwelttechnik M Lechner GmbH
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Umwelttechnik M Lechner GmbH
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Priority to PL04006570T priority Critical patent/PL1477296T3/en
Priority to SI200430666T priority patent/SI1477296T1/en
Publication of EP1477296A2 publication Critical patent/EP1477296A2/en
Publication of EP1477296A3 publication Critical patent/EP1477296A3/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B9/00—Presses specially adapted for particular purposes
    • B30B9/30—Presses specially adapted for particular purposes for baling; Compression boxes therefor
    • B30B9/3003—Details
    • B30B9/301—Feed means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B9/00—Presses specially adapted for particular purposes
    • B30B9/30—Presses specially adapted for particular purposes for baling; Compression boxes therefor
    • B30B9/3042—Containers provided with, or connectable to, compactor means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B9/00—Presses specially adapted for particular purposes
    • B30B9/30—Presses specially adapted for particular purposes for baling; Compression boxes therefor
    • B30B9/3082—Presses specially adapted for particular purposes for baling; Compression boxes therefor with compression means other than rams performing a rectilinear movement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65F—GATHERING OR REMOVAL OF DOMESTIC OR LIKE REFUSE
    • B65F1/00—Refuse receptacles; Accessories therefor
    • B65F1/14—Other constructional features; Accessories
    • B65F1/1452—Lifting, hoisting, elevating mechanisms or the like for refuse receptacles

Definitions

  • the present invention relates to a screw compactor for pressing waste and / or valuable materials into a collecting container, with a screw conveyor a feed container, in the interior of which the screw conveyor extends above the bottom of the feed container substantially parallel to said bottom, and a through hole in a side wall the feed hopper, through which the screw conveyor promotes the waste and / or valuable material in the collecting container, wherein between the screw conveyor or its envelope surface and the edge of the through hole, a substantially annular passage gap is provided, wherein the passage gap has a deviating from the circular shape ,
  • the waste or recyclables are not simply thrown into the collection container, but forcibly fed into it under crushing.
  • screw compressor of the type mentioned use of which, for example, paper, cardboard, cardboard boxes, packaging, but also wood waste such as crates or fruit boxes, as well as residual waste promoted in the collection container be, by means of a screw conveyor through a through hole through, which may be formed directly in the collecting container wall or in a projecting into the collecting container wall piece of the screw compressor.
  • the screw conveyors typically have a cylindrical envelope surface, which is described by the helical conveying blade of the screw conveyor or possibly also the helical conveying blades of the revolving screw conveyor.
  • the envelope surface can also be slightly conical.
  • a substantially annular passage gap In order to shred the waste and recyclables on the one hand, on the other hand, however, to be able to easily convey through the through hole is regularly provided between the screw conveyor or its envelope surface, which is described by the rotating conveyor coil, and the edge of the through hole, a substantially annular passage gap. However, it is not easy to choose the gap of the passage gap for each material optimally.
  • a screw compressor according to the preamble of claim 1 is known from US 4,256,035 known, which proposes to store the concentric in the initial position to the through hole of the feed hopper conveyor screw so that it can dodge radially occurring in occlusions occurring to a respective unclogged edge of the through hole.
  • a briquette screw is known, which compresses paper waste into briquettes via a counter punch, wherein a screw conveyor is arranged in differently shaped conveying tubes deviating in cross section from the circular shape.
  • the present invention has the object to provide an improved screw compressor of the type mentioned, which has an increased conveying efficiency, is less prone to clogging and promotes different types of waste and recyclables easily in the respective collection container, and advantageously allows an accurate determination of the Vorvollmeldung, i. It can be better decided whether there is a blockage or the collection container approaches its full state.
  • the screw compressor thus does not have the usual annular passage gap between the edge of the through hole and the screw conveyor or its envelope surface.
  • the passage gap has a deviating from the circular shape.
  • the gap between the through hole and the screw conveyor surface changes in the circumferential direction. In one segment, a larger gap is provided, while in a subsequent segment a smaller gap is provided.
  • This inventive design surprisingly allows a much more efficient filling of the collection container. Hence, the waste or recyclables by the im Gap in circumferentially changing passage gap better broken when they are driven by the screw conveyor through the through hole.
  • the gap dimension that changes in the circumferential direction is achieved in that the through hole has an edge contour deviating from the circular shape.
  • the envelope surface of the auger which is described by the helical conveying blade, may be circular or cylindrical.
  • the through hole may have a circular edge contour.
  • the screw conveyor can be arranged with its axis of rotation offset from the center of the circular edge contour of the through hole.
  • the annular passage gap in this case has a roughly crescent-shaped contour as it arises when a smaller cylinder is placed in a larger cylinder and is not arranged coaxially.
  • the screw conveyor usually sits in a feed container, preferably in the form of a funnel, into which or into which the waste and recyclables to be compacted are added, in order to supply them to the conveyor screw.
  • the screw conveyor extends over the bottom of the task container substantially parallel thereto. Seen in cross section perpendicular to the conveying direction, the task container may have parabolic or V-shaped widening walls.
  • the auger has a side on which the auger blade or trough on the bottom of the feed container tapers, and a side on which the worm blade or spiral runs away from the ground.
  • Running away and running means the following: If you look at a fixed point on the screw blade or helix on its circular path, then the distance of this point increases from the ground in the angular segment in which the worm blade runs away from the ground. In contrast, in the segment in which the worm bucket tapers to the ground, the distance of said point from the ground decreases. Usually, the screw compressor tends on the Side, where the worm scoop runs to the ground, to blockages. To remedy this situation, it is provided that the passage gap in the angle segment, in which the worm blade tapers to the floor, has a section with a larger gap. In contrast, in the opposite angular section in which the worm blade runs away from the bottom, the passage gap has a section of smaller clearance.
  • the passage gap has its largest gap in the second quadrant or in a transition region from the first to the second quadrant.
  • the edge contour of the through hole may be formed differently. It can be provided a harmonious curved edge contour without kinks and jumps. According to an alternative embodiment of the invention, however, it may be advantageous for certain types of waste or recyclables that the edge contour has at least one kink and / or at least one straight section. Depending on the material or waste, different edge contours can be particularly advantageous.
  • the screw compressor can be designed as a separate device which is detachably connected to various collection containers. If a collection container is full, it is released by the screw compactor, transported away and replaced by an empty one.
  • the screw compressor can also be a fixed part of a collective swap body. The latter version considerably simplifies handling during removal and replacement of a full collection container, since it does not have to be dismantled by the screw compressor and a new container must be reassembled on the screw compactor.
  • the embodiment described above has the advantage that you can work with only one screw compressor. The formation of the collection container is considerably cheaper.
  • the screw compressor 1 has in a known manner a funnel-shaped task container 2, which is designed to be open at the top, so that refuse containers 3 can be tipped into it with waste or recyclables, as shown in FIG.
  • the screw compressor 1 has a screw conveyor 4, which extends substantially horizontally above the likewise horizontal bottom of the feed container 2.
  • the screw conveyor 4 is rotatably mounted at one end. With its other end, the screw conveyor 4 passes through a through hole 5 which is formed in a side wall of the task container 2.
  • a collar-shaped annular projection is formed on the corresponding side wall of the feed container 2, with which the screw compressor 1 projects through a recess in the wall of the collecting container 6.
  • the screw conveyor 4 promotes through the through hole 5 through the waste or recyclables in the task container 2 were abandoned, in the collection container 6 inside, where they are pressed.
  • the screw conveyor 4 is driven by a drive 7 in a conventional manner about its longitudinal axis 8.
  • the screw conveyor or blade 9 describes, when the screw conveyor rotates, a cylindrical envelope surface 10, which can be seen in cross-section in Figures 2 to 3.
  • the through hole 5, through which the screw conveyor 4 protrudes, can, as Figure 2 shows, also have a circular cross-section.
  • the passage gap 11 between the envelope surface of the screw conveyor 4 and the through hole 5 is still not circular.
  • the auger is offset according to Figure 2 namely from the center 12 of the through hole 5.
  • the passage gap 11 therefore has approximately crescent shape, but the sickle tips are pulled together.
  • the gap between the envelope surface 10 of the screw conveyor 4 and the edge of the through hole 5 increases along the circumference of the through hole 5 from a point 13 minimal gap initially continuously until at point 14, a maximum gap is reached. If you continue in the circumferential direction, the gap decreases continuously again until it is at point 13 again minimal.
  • this is the right side of the screw conveyor 4 when it rotates clockwise according to the arrow 16.
  • the wall of the task container 2 can have a cross-section perpendicular to the conveying direction, the figure 2 shows an upwardly widening, preferably approximately parabolic course.
  • the bottom 15 is defined by the vertex or the lowest point of the wall cross-section. Regularly, the bottom 15 is the wall surface of the feed container 2, over which the screw conveyor 4 extends along.
  • the through-hole 5 may also have a non-circular cross-section.
  • the edge of the through-hole 5 in an upper section can have a circular-segment-shaped contour, to which straight contour sections 17 and 18 adjoin on the right and left. In these areas, the gap between the edge of the through hole 5 and the envelope surface of the screw conveyor 4 increases.
  • the point 14 maximum gap is also here in the second quadrant, in which the helix of the screw conveyor 4 runs to the bottom 15 of the task container 2 when it rotates clockwise in accordance with the arrow 16.
  • the edge contour of the through hole 5 may have kinks.

Abstract

The worm compressor (1) for compression of rubbish and/or materials in a collecetion container (6) has a conveyor worm (4) and a through passage hole (5) through which the worm moves material into the container. The worm is located in a lower inner chamber of a funnel-shaped issuing container (2), over the horizontal floor of which it extends. The worm is rotatably located at one end and with its other it passes through the through passage hole formed in the side wall of the issuing container, extending then through a recess in the wall of the collection container. The worm is driven by a drive (7) around its longitudinal axis (8). It has spiral or blade surfaces (9).

Description

Die vorliegende Erfindung betrifft einen Schneckenverdichter zum Verpressen von Abfall und/oder Wertstoffen in einen Sammelcontainer, mit einer Förderschnecke einem Aufgabebehältnis, in dessen Innenraum sich die Förderschnecke oberhalb des Bodens des Aufgabebehältnisses im wesentlichen parallel zu dem genannten Boden erstreckt, und einem Durchgangsloch in einer Seitenwandung des Aufgabebehältnisses, durch das hindurch die Förderschnecke den Abfall und/oder Wertstoff in den Sammelcontainer fördert, wobei zwischen der Förderschnecke bzw. deren Hüllfläche und dem Rand des Durchgangslochs ein im wesentlichen ringförmiger Durchtrittsspalt vorgesehen ist, wobei der Durchtrittsspalt eine von der Kreisringform abweichende Form aufweist.The present invention relates to a screw compactor for pressing waste and / or valuable materials into a collecting container, with a screw conveyor a feed container, in the interior of which the screw conveyor extends above the bottom of the feed container substantially parallel to said bottom, and a through hole in a side wall the feed hopper, through which the screw conveyor promotes the waste and / or valuable material in the collecting container, wherein between the screw conveyor or its envelope surface and the edge of the through hole, a substantially annular passage gap is provided, wherein the passage gap has a deviating from the circular shape ,

Um beim Sammeln von Abfall und Wertstoffen bessere Füllgrade der Sammelcontainer zu erreichen, werden die Abfälle bzw. Wertstoffe nicht einfach in den Sammelcontainer geworfen, sondern unter Zerkleinerung zwangsweise hineingefördert. Hierzu finden Schneckenverdichter der genannten Art Verwendung, mit Hilfe derer beispielsweise Papier, Kartonagen, Pappkartons, Verpackungen, aber auch Holzabfälle wie Steigen oder Obstkisten, sowie Restmüll in die Sammelcontainer gefördert werden, und zwar mittels einer Förderschnecke durch ein Durchgangsloch hindurch, das unmittelbar in der Sammelcontainerwandung oder auch in einem in den Sammelcontainer hineinragenden Wandungsstück des Schneckenverdichters ausgebildet sein kann. Die Förderschnecken besitzen typischerweise eine zylindrische Hüllfläche, die von der wendelförmigen Förderschaufel der Förderschnecke oder ggf. auch den wendelförmigen Förderschaufeln der umlaufenden Förderschnecke beschrieben wird. Die Hüllfläche kann ggf. auch leicht konisch ausgebildet sein. Um die Abfälle und Wertstoffe einerseits zu zerkleinern, andererseits jedoch problemlos durch das Durchgangsloch hindurch fördern zu können, ist regelmäßig zwischen der Förderschnecke bzw. deren Hüllfläche, die von der umlaufenden Förderwendel beschrieben wird, und dem Rand des Durchgangsloches ein im wesentlichen ringförmiger Durchtrittsspalt vorgesehen. Es ist jedoch nicht ganz einfach, das Spaltmaß des Durchtrittsspalts für den jeweiligen Wertstoff optimal zu wählen.In order to achieve better filling levels of the collection container when collecting waste and recyclables, the waste or recyclables are not simply thrown into the collection container, but forcibly fed into it under crushing. For this purpose find screw compressor of the type mentioned use of which, for example, paper, cardboard, cardboard boxes, packaging, but also wood waste such as crates or fruit boxes, as well as residual waste promoted in the collection container be, by means of a screw conveyor through a through hole through, which may be formed directly in the collecting container wall or in a projecting into the collecting container wall piece of the screw compressor. The screw conveyors typically have a cylindrical envelope surface, which is described by the helical conveying blade of the screw conveyor or possibly also the helical conveying blades of the revolving screw conveyor. If necessary, the envelope surface can also be slightly conical. In order to shred the waste and recyclables on the one hand, on the other hand, however, to be able to easily convey through the through hole is regularly provided between the screw conveyor or its envelope surface, which is described by the rotating conveyor coil, and the edge of the through hole, a substantially annular passage gap. However, it is not easy to choose the gap of the passage gap for each material optimally.

Ein Schneckenverdichter nach dem Oberbegriff des Anspruchs 1 ist aus der US 4,256,035 bekannt, die vorschlägt, die in der Ausgangsstellung zu dem Durchgangsloch des Aufgabebehältnisses konzentrische Förderschnecke taumelnd zu lagern, so dass diese bei auftretenden Verstopfungen radial zu einem jeweils nicht verstopften Rand des Durchgangsloches hin ausweichen kann. Aus der US 5,553,534 ist ferner eine Brikettierschnecke bekannt, die über einen Gegendorn u.a. Papierabfälle zu Briketts verdichtet, wobei eine Förderschnecke in verschieden ausgebildeten, im Querschnitt von der Kreisform abweichenden Förderrohren angeordnet ist. Ferner sind aus der EP 1 118 455 A2 sowie der DE 91 07 404 U1 Schneckenverdichter bekannt, bei denen sich eine Förderschnecke mit einer kegeligen Hüllfläche koaxial in einem ebenfalls kegelig verjüngenden Durchtrittsquerschnitt angeordnet ist. Schließlich beschreibt die GB 1 594 543 einen Schneckenförderer zur Entsorgung von Spänen, bei dem die Förderschnecke in einem zylindrischen Rohr sitzt und vom Mittelpunkt des Rohres weg zu dessen Boden hin versetzt ist, so dass der Durchtrittsspalt zwischen der Förderwendel und dem Rohr im Bereich dessen oberen Scheitelpunktes am größten ist.A screw compressor according to the preamble of claim 1 is known from US 4,256,035 known, which proposes to store the concentric in the initial position to the through hole of the feed hopper conveyor screw so that it can dodge radially occurring in occlusions occurring to a respective unclogged edge of the through hole. From the US 5,553,534 Furthermore, a briquette screw is known, which compresses paper waste into briquettes via a counter punch, wherein a screw conveyor is arranged in differently shaped conveying tubes deviating in cross section from the circular shape. Furthermore, from the EP 1 118 455 A2 as well as the DE 91 07 404 U1 Screw compressor known in which a screw conveyor with a conical envelope surface is arranged coaxially in a likewise tapered passage cross-section. Finally, that describes GB 1 594 543 a screw conveyor for disposal of chips, wherein the screw conveyor is seated in a cylindrical tube and is offset away from the center of the tube to the bottom thereof, so that the passage gap between the conveyor coil and the tube in the region of the upper vertex is greatest.

Hiervon ausgehend liegt der vorliegenden Erfindung die Aufgabe zugrunde, einen verbesserten Schneckenverdichter der genannten Art zu schaffen, der eine erhöhte Fördereffizienz besitzt, weniger verstopfungsanfällig ist und verschiedene Abfallarten und Wertstoffe problemlos in den jeweiligen Sammelcontainer fördert, sowie vorteilhafterweise eine exakte Bestimmung der Vorvollmeldung ermöglicht, d.h. besser entschieden werden kann, ob eine Verstopfung vorliegt oder sich der Sammelcontainer seinem vollen Zustand nähert.On this basis, the present invention has the object to provide an improved screw compressor of the type mentioned, which has an increased conveying efficiency, is less prone to clogging and promotes different types of waste and recyclables easily in the respective collection container, and advantageously allows an accurate determination of the Vorvollmeldung, i. It can be better decided whether there is a blockage or the collection container approaches its full state.

Erfindungsgemäß wird diese Aufgabe durch einen Schneckenverdichter nach Anspruch 1 gelöst. Bevorzugte Ausführungsformen sind Gegenstand der weiteren Ansprüche.According to the invention this object is achieved by a screw compressor according to claim 1. Preferred embodiments are subject matter of the further claims.

Erfindungsgemäß besitzt der Schneckenverdichter also nicht den üblichen kreisringförmigen Durchtrittsspalt zwischen dem Rand des Durchgangslochs und der Förderschnecke bzw. deren Hüllfläche. Der Durchtrittsspalt weist eine von der Kreisringform abweichende Form auf. Insbesondere verändert sich das Spaltmaß zwischen dem Durchgangsloch und der Förderschneckenhüllfläche in Umfangsrichtung. In einem Segment ist ein größerer Spalt vorgesehen, während in einem folgenden Segment ein kleinerer Spalt vorgesehen ist. Diese erfindungsgemäße Gestaltung gestattet überraschenderweise ein wesentlich effizienteres Befüllen der Sammelcontainer. Scheinbar werden die Abfälle bzw. Wertstoffe durch den sich im Spaltmaß in Umfangsrichtung ändernden Durchtrittsspalt besser zerrissen, wenn sie von der Förderschnecke durch das Durchgangsloch getrieben werden.According to the invention, the screw compressor thus does not have the usual annular passage gap between the edge of the through hole and the screw conveyor or its envelope surface. The passage gap has a deviating from the circular shape. In particular, the gap between the through hole and the screw conveyor surface changes in the circumferential direction. In one segment, a larger gap is provided, while in a subsequent segment a smaller gap is provided. This inventive design surprisingly allows a much more efficient filling of the collection container. Apparently, the waste or recyclables by the im Gap in circumferentially changing passage gap better broken when they are driven by the screw conveyor through the through hole.

In Weiterbildung der Erfindung wird das sich in Umfangsrichtung ändernde Spaltmaß dadurch erreicht, dass das Durchgangsloch eine von der Kreisform abweichende Randkontur aufweist. Die Hüllfläche der Förderschnecke, die von deren wendelförmiger Förderschaufel beschrieben wird, kann kreisförmig bzw. zylindrisch sein.In a further development of the invention, the gap dimension that changes in the circumferential direction is achieved in that the through hole has an edge contour deviating from the circular shape. The envelope surface of the auger, which is described by the helical conveying blade, may be circular or cylindrical.

Nach einer alternativen Ausführungsform der Erfindung kann das Durchgangsloch eine kreisförmige Randkontur besitzen. Um ein sich in Umfangsrichtung änderndes Spaltmaß zu erreichen, kann die Förderschnecke mit ihrer Rotationsachse vom Mittelpunkt der kreisförmigen Randkontur des Durchgangslochs versetzt angeordnet sein. Der ringförmige Durchtrittsspalt besitzt dabei eine grob gesprochen mondsichelförmige Kontur wie sie entsteht, wenn ein kleinerer Zylinder in einen größeren Zylinder gestellt und dabei nicht koaxial angeordnet wird.According to an alternative embodiment of the invention, the through hole may have a circular edge contour. In order to achieve a circumferentially changing gap size, the screw conveyor can be arranged with its axis of rotation offset from the center of the circular edge contour of the through hole. The annular passage gap in this case has a roughly crescent-shaped contour as it arises when a smaller cylinder is placed in a larger cylinder and is not arranged coaxially.

Die Förderschnecke sitzt üblicherweise in einem Aufgabebehältnis vorzugsweise in Form eines Trichters, in das bzw. in den die zu verpressenden Abfälle und Wertstoffe gegeben werden, um sie der Förderschnecke zuzuführen. Die Förderschnecke erstreckt sich dabei über den Boden des Aufgabebehältnisses im wesentlichen parallel dazu. Im Querschnitt senkrecht zur Förderrichtung gesehen kann das Aufgabebehältnis sich parabelförmig oder V-förmig aufweitende Wandungen besitzen. Die Förderschnecke besitzt dabei eine Seite, auf der die Förderschneckenschaufel bzw. -wendel auf den Boden des Aufgabebehältnisses zuläuft, und eine Seite, auf der die Schneckenschaufel bzw. -wendel von dem Boden wegläuft. Weglaufen und Zulaufen meint dabei folgendes: Betrachtet man einen festen Punkt auf der Schneckenschaufel bzw. -wendel auf ihrem kreisförmig umlaufenden Weg, dann vergrößert sich der Abstand dieses Punktes vom Boden in dem Winkelsegment, in dem die Schneckenschaufel vom Boden wegläuft. In dem Segment hingegen, in dem die Schneckenschaufel auf den Boden zuläuft, verringert sich der Abstand des genannten Punktes vom Boden. Üblicherweise neigt der Schneckenverdichter auf der Seite, wo die Schneckenschaufel auf den Boden zuläuft, zu Verstopfungen. Um hier Abhilfe zu schaffen, ist vorgesehen, dass der Durchtrittsspalt in dem Winkelsegment, in dem die Schneckenschaufel auf den Boden zuläuft, einen Abschnitt mit größerem Spaltmaß besitzt. In dem gegenüberliegenden Winkelabschnitt, in dem die Schneckenschaufel von dem Boden wegläuft, besitzt der Durchtrittsspalt hingegen einen Abschnitt kleineren Spaltmaßes. Teilt man einen vollen Umlauf der Förderschnecke in vier Quadranten ein, von denen die ersten beiden die Seite der Förderschnecke meinen, in der die Schneckenwendel auf den Boden zuläuft und die dritten und vierten Quadranten die Seite bestimmen, in denen die Schneckenschaufel vom Boden wegläuft, kann nach einer vorteilhaften Ausbildung der Erfindung vorgesehen sein, dass der Durchtrittsspalt sein größtes Spaltmaß im zweiten Quadranten bzw. in einem Übergangsbereich vom ersten in den zweiten Quadranten aufweist.The screw conveyor usually sits in a feed container, preferably in the form of a funnel, into which or into which the waste and recyclables to be compacted are added, in order to supply them to the conveyor screw. The screw conveyor extends over the bottom of the task container substantially parallel thereto. Seen in cross section perpendicular to the conveying direction, the task container may have parabolic or V-shaped widening walls. The auger has a side on which the auger blade or trough on the bottom of the feed container tapers, and a side on which the worm blade or spiral runs away from the ground. Running away and running means the following: If you look at a fixed point on the screw blade or helix on its circular path, then the distance of this point increases from the ground in the angular segment in which the worm blade runs away from the ground. In contrast, in the segment in which the worm bucket tapers to the ground, the distance of said point from the ground decreases. Usually, the screw compressor tends on the Side, where the worm scoop runs to the ground, to blockages. To remedy this situation, it is provided that the passage gap in the angle segment, in which the worm blade tapers to the floor, has a section with a larger gap. In contrast, in the opposite angular section in which the worm blade runs away from the bottom, the passage gap has a section of smaller clearance. Divide one full revolution of the auger into four quadrants, the first two of which mean the side of the auger, with the auger running towards the bottom, and the third and fourth quadrants defining the side in which the auger will run away from the bottom be provided according to an advantageous embodiment of the invention that the passage gap has its largest gap in the second quadrant or in a transition region from the first to the second quadrant.

Die Randkontur des Durchgangslochs kann verschieden ausgebildet sein. Es kann eine harmonisch gekrümmte Randkontur ohne Knicke und Sprünge vorgesehen sein. Nach einer alternativen Ausführung der Erfindung kann es für bestimmte Abfallarten bzw. Wertstoffe jedoch vorteilhaft sein, dass die Randkontur mindestens einen Knick und/oder mindestens einen geraden Abschnitt besitzt. Je nach Wertstoff bzw. Abfall können verschiedene Randkonturen besonders vorteilhaft sein.The edge contour of the through hole may be formed differently. It can be provided a harmonious curved edge contour without kinks and jumps. According to an alternative embodiment of the invention, however, it may be advantageous for certain types of waste or recyclables that the edge contour has at least one kink and / or at least one straight section. Depending on the material or waste, different edge contours can be particularly advantageous.

Der Schneckenverdichter kann als separates Gerät ausgebildet sein, das lösbar mit verschiedenen Sammelcontainern verbunden wird. Ist ein Sammelcontainer voll, wird dieser vom Schneckenverdichter gelöst, abtransportiert und durch einen leeren ersetzt. Nach einer alternativen Ausführung der Erfindung kann der Schneckenverdichter jedoch auch fester Teil eines Sammel-Wechselcontainers sein. Letztere Ausführung erleichtert die Handhabung beim Abtransport und Austausch eines vollen Sammelcontainers beträchtlich, da dieser nicht vom Schneckenverdichter abgebaut und ein neuer Container an den Schneckenverdichter wieder angebaut werden muss. Andererseits besitzt die zuvor beschriebene Ausführung den Vorteil, dass mit nur einem Schneckenverdichter gearbeitet werden kann. Die Ausbildung der Sammelcontainer verbilligt sich beträchtlich.The screw compressor can be designed as a separate device which is detachably connected to various collection containers. If a collection container is full, it is released by the screw compactor, transported away and replaced by an empty one. However, according to an alternative embodiment of the invention, the screw compressor can also be a fixed part of a collective swap body. The latter version considerably simplifies handling during removal and replacement of a full collection container, since it does not have to be dismantled by the screw compressor and a new container must be reassembled on the screw compactor. On the other hand, the embodiment described above has the advantage that you can work with only one screw compressor. The formation of the collection container is considerably cheaper.

Die vorliegende Erfindung wird nachfolgend anhand bevorzugter Ausführungsbeispiele und zugehöriger Zeichnungen näher erläutert. In den Zeichnungen zeigen:

Fig. 1
eine schematische Seitenansicht eines Schneckenverdichters nach einer bevorzugten Ausführung der Erfindung, der an einen Sammelcontainer angeschlossen gezeichnet ist,
Fig. 2
eine schematische Teilschnittansicht entlang der Linie A-A in Fig. 1, die die Kontur des Durchgangslochs zeigt, durch das hindurch die Förderschnecke die Abfälle bzw. Wertstoffe in den Sammelcontainer fördert,
Fig. 3
eine schematische Teilschnittansicht ähnlich Fig. 2, die eine alternative Ausführung der Kontur des Durchgangsloches zeigt.
The present invention will be explained in more detail below with reference to preferred embodiments and associated drawings. In the drawings show:
Fig. 1
a schematic side view of a screw compressor according to a preferred embodiment of the invention, which is shown connected to a collecting container,
Fig. 2
a schematic partial sectional view along the line AA in Figure 1, showing the contour of the through hole through which the screw conveyor promotes the waste or recyclables in the collection container,
Fig. 3
a schematic partial sectional view similar to FIG. 2, which shows an alternative embodiment of the contour of the through hole.

Der Schneckenverdichter 1 besitzt in an sich bekannter Weise ein trichterförmiges Aufgabebehältnis 2, das nach oben hin offen ausgebildet ist, so dass Müllbehälter 3 mit Abfällen bzw. Wertstoffen hineingekippt werden können, wie dies Figur 1 zeigt.The screw compressor 1 has in a known manner a funnel-shaped task container 2, which is designed to be open at the top, so that refuse containers 3 can be tipped into it with waste or recyclables, as shown in FIG.

Im unteren Innenraum des Aufgabebehältnisses 2 besitzt der Schneckenverdichter 1 eine Förderschnecke 4, die sich im wesentlichen horizontal über dem ebenfalls horizontalen Boden des Aufgabebehältnisses 2 erstreckt. Die Förderschnecke 4 ist an ihrem einen Ende rotatorisch gelagert. Mit ihrem anderen Ende tritt die Förderschnecke 4 durch ein Durchgangsloch 5 hindurch, das in einer Seitenwandung des Aufgabebehältnisses 2 ausgebildet ist. Wie Figur 1 zeigt, ist ein kragenförmiger Ringansatz an der entsprechenden Seitenwandung des Aufgabebehältnisses 2 ausgebildet, mit dem der Schneckenverdichter 1 durch eine Ausnehmung in der Wandung des Sammelcontainers 6 hindurchragt. Die Förderschnecke 4 fördert durch das Durchgangsloch 5 hindurch die Abfälle bzw. Wertstoffe, die in das Aufgabebehältnis 2 aufgegeben wurden, in den Sammelcontainer 6 hinein, wobei sie verpresst werden.In the lower interior of the feed container 2, the screw compressor 1 has a screw conveyor 4, which extends substantially horizontally above the likewise horizontal bottom of the feed container 2. The screw conveyor 4 is rotatably mounted at one end. With its other end, the screw conveyor 4 passes through a through hole 5 which is formed in a side wall of the task container 2. As FIG. 1 shows, a collar-shaped annular projection is formed on the corresponding side wall of the feed container 2, with which the screw compressor 1 projects through a recess in the wall of the collecting container 6. The screw conveyor 4 promotes through the through hole 5 through the waste or recyclables in the task container 2 were abandoned, in the collection container 6 inside, where they are pressed.

Die Förderschnecke 4 ist über einen Antrieb 7 in an sich bekannter Weise um ihre Längsachse 8 antreibbar. Die Förderschneckenwendel bzw. -schaufel 9 beschreibt, wenn die Förderschnecke umläuft, eine zylindrische Hüllfläche 10, die in den Figuren 2 bis 3 im Querschnitt zu sehen ist.The screw conveyor 4 is driven by a drive 7 in a conventional manner about its longitudinal axis 8. The screw conveyor or blade 9 describes, when the screw conveyor rotates, a cylindrical envelope surface 10, which can be seen in cross-section in Figures 2 to 3.

Das Durchgangsloch 5, durch das die Förderschnecke 4 hindurchragt, kann, wie Figur 2 zeigt, ebenfalls einen kreisringförmigen Querschnitt besitzen. Der Durchgangsspalt 11 zwischen der Hüllfläche der Förderschnecke 4 und dem Durchgangsloch 5 ist dennoch nicht kreisringförmig. Die Förderschnecke ist gemäß Figur 2 nämlich vom Mittelpunkt 12 des Durchgangsloches 5 versetzt. Der Durchgangsspalt 11 besitzt demzufolge etwa Mondsichelform, wobei die Sichelspitzen jedoch zusammengezogen sind. Das Spaltmaß zwischen der Hüllfläche 10 der Förderschnecke 4 und dem Rand des Durchgangsloches 5 nimmt dabei entlang des Umfangs des Durchgangsloches 5 von einem Punkt 13 minimalen Spaltmaßes zunächst kontinuierlich zu, bis am Punkt 14 ein maximales Spaltmaß erreicht ist. Geht man in Umfangsrichtung weiter, nimmt das Spaltmaß wieder kontinuierlich ab, bis es am Punkt 13 wieder minimal ist.The through hole 5, through which the screw conveyor 4 protrudes, can, as Figure 2 shows, also have a circular cross-section. The passage gap 11 between the envelope surface of the screw conveyor 4 and the through hole 5 is still not circular. The auger is offset according to Figure 2 namely from the center 12 of the through hole 5. The passage gap 11 therefore has approximately crescent shape, but the sickle tips are pulled together. The gap between the envelope surface 10 of the screw conveyor 4 and the edge of the through hole 5 increases along the circumference of the through hole 5 from a point 13 minimal gap initially continuously until at point 14, a maximum gap is reached. If you continue in the circumferential direction, the gap decreases continuously again until it is at point 13 again minimal.

Wie Figur 2 zeigt, liegt der Abschnitt des Durchgangsspaltes 11, der ein größeres Spaltmaß besitzt und um den Punkt 14 herum liegt, auf der Seite der Förderschnecke 4, wo die Wendel 9 auf den Boden 15 des Aufgabebehältnisses 2 zuläuft. Gemäß Figur 2 ist dies die rechte Seite der Förderschnecke 4, wenn diese sich im Uhrzeigersinn gemäß dem Pfeil 16 dreht. Die Wandung des Aufgabebehältnisses 2 kann im Querschnitt senkrecht zur Förderrichtung, den Figur 2 zeigt, einen sich nach oben erweiternden, vorzugsweise etwa parabelförmigen Verlauf besitzen. Der Boden 15 wird dabei durch den Scheitelpunkt bzw. den tiefsten Punkt des Wandungsquerschnitts definiert. Regelmäßig ist der Boden 15 die Wandungsfläche des Aufgabebehältnisses 2, über der sich die Förderschnecke 4 entlang erstreckt.As shown in FIG. 2, the portion of the passage gap 11, which has a larger gap and lies around the point 14, lies on the side of the conveyor screw 4, where the coil 9 tapers to the bottom 15 of the feed container 2. According to Figure 2, this is the right side of the screw conveyor 4 when it rotates clockwise according to the arrow 16. The wall of the task container 2 can have a cross-section perpendicular to the conveying direction, the figure 2 shows an upwardly widening, preferably approximately parabolic course. The bottom 15 is defined by the vertex or the lowest point of the wall cross-section. Regularly, the bottom 15 is the wall surface of the feed container 2, over which the screw conveyor 4 extends along.

Alternativ zu der in Figur 2 gezeichneten Ausführung kann das Durchgangsloch 5 auch einen nicht kreisförmigen Querschnitt besitzen. Wie Figur 3 zeigt, kann der Rand des Durchgangsloches 5 in einem oberen Abschnitt eine kreissegmentförmige Kontur besitzen, an die sich rechts und links gerade Konturabschnitte 17 und 18 anschließen. In diesen Bereichen nimmt das Spaltmaß zwischen dem Rand des Durchgangsloches 5 und der Hüllfläche der Förderschnecke 4 zu. Der Punkt 14 maximalen Spaltmaßes liegt auch hier im zweiten Quadranten, in dem die Wendel der Förderschnecke 4 auf den Boden 15 des Aufgabebehältnisses 2 zuläuft, wenn diese sich im Uhrzeigersinn gemäß dem Pfeil 16 dreht. Die Randkontur des Durchgangsloches 5 kann dabei Knicke aufweisen.As an alternative to the embodiment shown in FIG. 2, the through-hole 5 may also have a non-circular cross-section. As FIG. 3 shows, the edge of the through-hole 5 in an upper section can have a circular-segment-shaped contour, to which straight contour sections 17 and 18 adjoin on the right and left. In these areas, the gap between the edge of the through hole 5 and the envelope surface of the screw conveyor 4 increases. The point 14 maximum gap is also here in the second quadrant, in which the helix of the screw conveyor 4 runs to the bottom 15 of the task container 2 when it rotates clockwise in accordance with the arrow 16. The edge contour of the through hole 5 may have kinks.

Claims (7)

  1. Screw compactor for pressing waste and/or valuable substances into a collecting container (6), having a conveying screw (4), a feed receptacle (2), in the interior space of which the conveying screw (4) runs above the base (15) of the feed receptacle (2) and essentially parallel to said base (15), and a through-hole (5) in a side wall of the feed receptacle (2), through which the conveying screw (4) conveys the waste and/or valuable substance into the collecting container (6), an essentially annular passage gap (11) being provided between the conveying screw (4) or its enveloping surface (10) and the edge of the through-hole (5), the passage gap (11) having a shape differing from the annular shape, characterized in that the conveying screw (4), with its rotation axis, is arranged offset from the centre point of the through-hole (5), and the passage gap (11), considered in the circumferential direction about the rotation axis of the conveying screw (4), has a maximum gap size in the bottom quadrant, facing the base (15) of the feed receptacle (2), of a circle about said rotation axis, in which quadrant the helix of the conveying screw (4) runs towards the bottom (15) of the feed receptacle (2), and has a smaller gap size in the remaining quadrants of the circle about said rotation axis.
  2. Screw compactor according to the preceding claim, the through-hole (5) having an edge contour differing from the circular shape.
  3. Screw compactor according to Claim 1, the through-hole (5) having a circular edge contour.
  4. Screw compactor according to one of the preceding claims, the passage gap (11) having a gap size greater than zero over the entire circumference of the through-hole (5).
  5. Screw compactor according to one of the preceding claims, the edge contour of the through-hole (5) having at least one bend and/or at least one straight section (18).
  6. Screw compactor according to one of the preceding claims, releasable connecting means being provided for the releasable fastening to interchangeable collecting containers.
  7. Screw compactor according to one of Claims 1 to 6, it being part of a collecting container.
EP04006570A 2003-05-15 2004-03-18 Screw compactor Expired - Lifetime EP1477296B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PL04006570T PL1477296T3 (en) 2003-05-15 2004-03-18 Screw compactor
SI200430666T SI1477296T1 (en) 2003-05-15 2004-03-18 Screw compactor

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20307600U 2003-05-15
DE20307600U DE20307600U1 (en) 2003-05-15 2003-05-15 screw compressors

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EP1477296A2 EP1477296A2 (en) 2004-11-17
EP1477296A3 EP1477296A3 (en) 2005-11-09
EP1477296B1 true EP1477296B1 (en) 2008-01-16

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EP (1) EP1477296B1 (en)
AT (1) ATE383942T1 (en)
DE (2) DE20307600U1 (en)
ES (1) ES2297292T3 (en)
PL (1) PL1477296T3 (en)
SI (1) SI1477296T1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105593010A (en) * 2013-11-19 2016-05-18 9103-8034魁北克公司 Screw conveyor system for compaction apparatus

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110002142A (en) * 2019-04-30 2019-07-12 华达（福建龙岩）环卫科技有限公司 It is a kind of to lift rubbish complete set of equipments with the ground of spiral and push plate dual compression
NL2025709B1 (en) * 2020-05-29 2022-01-13 Baars Hendrik Method for filling a container with vegetable residual material

Citations (1)

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Publication number Priority date Publication date Assignee Title
GB1594543A (en) * 1977-02-22 1981-07-30 Asea Ab Worm conveyor

Family Cites Families (4)

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Publication number Priority date Publication date Assignee Title
US4256035A (en) * 1979-01-02 1981-03-17 Neufeldt Jacob J Refuse compacting device
IT1224364B (en) * 1988-05-11 1990-10-04 Trasportatori Govoni Srl METHOD, MACHINE AND PLANT FOR EVACUATION, CONVEYMENT, COMPACTION AND DISCHARGE OF BULK MATERIALS, IN PARTICULAR CHIP AND SCRAPS
DE9107404U1 (en) * 1991-06-15 1991-08-08 Wecker, Heinrich, 4782 Erwitte, De
DE20000912U1 (en) * 2000-01-20 2000-03-09 Kampwerth Umwelttechnik Gmbh & Arrangement consisting of a screw compactor and a press container for receiving waste materials to be compressed

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1594543A (en) * 1977-02-22 1981-07-30 Asea Ab Worm conveyor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105593010A (en) * 2013-11-19 2016-05-18 9103-8034魁北克公司 Screw conveyor system for compaction apparatus
CN105593010B (en) * 2013-11-19 2018-07-06 9103-8034魁北克公司 For the screw conveyor system of tamping apparatus

Also Published As

Publication number Publication date
EP1477296A2 (en) 2004-11-17
DE502004005939D1 (en) 2008-03-06
ATE383942T1 (en) 2008-02-15
DE20307600U1 (en) 2003-09-18
ES2297292T3 (en) 2008-05-01
EP1477296A3 (en) 2005-11-09
PL1477296T3 (en) 2008-05-30
SI1477296T1 (en) 2008-06-30

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