EP0795352A1 - Plate or similar material shredding device - Google Patents
Plate or similar material shredding device Download PDFInfo
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- EP0795352A1 EP0795352A1 EP97103686A EP97103686A EP0795352A1 EP 0795352 A1 EP0795352 A1 EP 0795352A1 EP 97103686 A EP97103686 A EP 97103686A EP 97103686 A EP97103686 A EP 97103686A EP 0795352 A1 EP0795352 A1 EP 0795352A1
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- openings
- grids
- axis
- striking tool
- plates
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- 239000000463 material Substances 0.000 title claims abstract description 11
- 239000002184 metal Substances 0.000 claims abstract description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000005266 casting Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
- B02C13/26—Details
- B02C13/282—Shape or inner surface of mill-housings
- B02C13/284—Built-in screens
Definitions
- the invention relates to a device for comminuting sheet metal and similar material with a wear plate having a striking tool which is rotatable about an axis and grating or recesses with openings.
- Such devices which also include hammer mills, are u. a. suitable for shredding car scrap.
- the material is fed into the shredding device via a slope and then smashed and shredded between the striking tool and the grates or wear plates.
- hammers sitting on a rotating rotor smash the material, which is then removed from the mill through openings in the grates.
- Wear plates are used for such mills, separating, sorting and processing plants. They are either cast or consist of rolled sheets.
- Disassembly can very often only be carried out due to wedging of the plates or grates in the system by expensive disassembly using a welding torch. This usually leads to the complete destruction of the grates or wear plates.
- a desired frequent replacement of the grids or plates for the production of different materials, ie the replacement of only partially closed plates for later reuse and for varying the hole sizes has not been possible up to now.
- the invention is therefore based on the object of developing a device of the type described at the outset in such a way that the elongation of the grids or the wear plates is reduced during their use.
- openings or recesses limit webs, the course of which deviates from a straight line at least in the direction of the axis of the striking tool.
- the invention is based on the knowledge that the strong elongation of wear plates or grates depends on the plate geometry and that a special shape of the openings or depressions reduces the elongation. Since the course of the webs located between the openings or depressions deviates according to the invention from a straight line, an elongation of the webs does not necessarily lead to an elongation of the wear plate, but can also lead to deformations within the grate or the wear plate which do not affect the dimensions of the grate or wear plate.
- Such a design means that grids or plates arranged in the direction of the axis of the striking tool exert less force on the lateral boundary surfaces of the device during their use and a reduction in the elongation transversely to the rotor axis facilitates the exchange of grids or plates arranged next to one another.
- the openings are arranged offset from one another and are essentially hexagonal.
- This configuration has the further advantage that only three webs meet at each node.
- wear plates as described in the prior art, the openings or depressions are square and thus four webs meet at each node. This has casting disadvantages.
- the special shape of their openings leads to a considerable reduction in the cost of their production.
- each impact tool that moves in a straight line relative to the openings runs alternately over openings and webs, as a result of which the shape behavior of the device is significantly improved.
- an advantageous embodiment provides that the openings are pentagonal in an edge area and have the same area as in a central area.
- the pentagonal opening shape in the edge area allows a straight edge termination of the wear plate or the grate and allows openings to be formed which correspond in their area to the hexagonal openings in the central area.
- openings or depressions are offset from one another and are round.
- Round openings also offer similar advantages to hexagonal openings in terms of casting technology and in relation to the elongation properties of the wear plate or the gratings and are therefore proposed as an alternative embodiment.
- the openings When using round openings, it is advantageous if the openings have a straight side in an edge region. This ensures that openings are provided up to the edge region of the grate or the wear plate, and these openings are also to be designed such that the openings in the edge region have the same passage area as the openings in the central region of the grate or the wear plate.
- An advantageous embodiment provides that the grids are arranged transversely to the axis of the striking tool. Since the course of the webs according to the invention reduces the elongation of the plates or gratings, such an arrangement is possible.
- the grids have openings that become smaller in a direction transverse to the axis of the striking tool. Such a reduction in the size of the openings leads to a different grinding behavior, and in particular on ceiling grates of hammer mills, such a configuration of the openings can prevent comminuted material from falling back into the area of the working impact tools.
- the wear plates or grates do not expand as much due to their special geometry as known wear plates or grates, the wear plates or grates according to the invention can also be made from steels with high wear resistance, such as, for example, B. austenitic steel can be made, which could not be used because of their strong ductility.
- the structure of the hammer mill 1 shown in FIG. 1 is known.
- Motor vehicles 3 slide into the rotor space 4 from the left side via a ramp 2.
- this rotor space 4 there is a striking tool 5 which is rotatably mounted on an axis 6.
- the striking tool 5 moves in the direction of the arrows 7 and tears apart the motor vehicle 3.
- the parts 8 which are created are ground in the rotor space between the striking tool 5 and the grate 9.
- the grids 9 have openings 10, at the edges of which the parts 8 are ground and through which the parts 8, if they are small enough, emerge from the rotor space 4.
- the leaked parts 8 then fall onto a chute 11, on which they get out of the hammer mill onto a conveyor belt 12.
- the grids 9 are arranged in a semicircle around the striking tool.
- Floor gratings are located in the lower area.
- ejection door 13 In the direction of the striking tool 5 following the floor grates there is an ejection door 13 which can open in the event of an explosion, and this is followed by a ceiling grille 14.
- a hood 15 is provided on the side opposite the striking tool 5, which guides the parts 8 passing through the grates onto the chute 11.
- the bottom gratings are arranged transversely to the axis 6 of the striking tool 5 and an elongation of the bottom gratings therefore does not press on the side cover 16 of the hood 15.
- FIG. 2a shows the conventional design of the grids, in which bars 19 and 20 are arranged in the longitudinal direction 17 and in the transverse direction 18 of the grids 9. When the grids are used for a longer period of time, these webs cause the grate to expand in the direction of arrows 17 and 18.
- FIG. 2b In order to avoid expansions in both directions, a grate according to FIG. 2b is proposed according to the invention, in which the webs do not form a continuous line either in the longitudinal direction 21 or in the transverse direction 22.
- a grate design can be used for the ceiling grate, the ejection door and the floor grate.
- a section of a floor grate is shown in FIG. 2c in a top view and FIG. 2d as a perspective view.
- FIGS. 2e and f Further embodiments of the invention are shown in FIGS. 2e and f, in which the webs 23 in FIG. 2e are arranged diagonally to the plate and thus form a zigzag line both in the longitudinal direction 24 and in the transverse direction 25 of the plate.
- Fig. 2f shows schematically the use of pentagonal openings 10, which can also be arranged so that a zigzag line is formed either in the longitudinal direction or in the transverse direction to the plate.
- Fig. 2g shows a grate running transversely to the rotor axis with hexagonal openings.
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- Food Science & Technology (AREA)
- Crushing And Pulverization Processes (AREA)
- Crushing And Grinding (AREA)
Abstract
Description
Die Erfindung betrifft eine Vorrichtung zur Zerkleinerung von Blech und ähnlichem Material mit einein Schlagwerkzeug, das um eine Achse drehbar ist, und Öffnungen aufweisenden Rosten oder Vertiefungen aufweisenden Schleißplatten.The invention relates to a device for comminuting sheet metal and similar material with a wear plate having a striking tool which is rotatable about an axis and grating or recesses with openings.
Derartige Vorrichtungen, unter die vor allein auch Hammermühlen fallen, sind u. a. zur Zerkleinerung von Autoschrott geeignet. Das Material wird hierbei über eine Schräge in die Zerkleinerungsvorrichtung hineingeführt und dann zwischen dem Schlagwerkzeug und den Rosten oder Schleißplatten zerschlagen und zerfetzt. Bei einer Hammermühle zerschlagen auf einem drehenden Rotor sitzende Hämmer das Material, das anschließend durch Öffnungen in den Rosten aus der Mühle entfernt wird.Such devices, which also include hammer mills, are u. a. suitable for shredding car scrap. The material is fed into the shredding device via a slope and then smashed and shredded between the striking tool and the grates or wear plates. In a hammer mill, hammers sitting on a rotating rotor smash the material, which is then removed from the mill through openings in the grates.
Schleißplatten werden für derartige Mühlen, Separier-, Sortier- und Aufbereitungsanlagen eingesetzt. Sie sind entweder gegossen oder bestehen aus gewalzten Blechen.Wear plates are used for such mills, separating, sorting and processing plants. They are either cast or consist of rolled sheets.
Im Betrieb sind Schleißplatten außerordentlich hohen Beanspruchungen durch das zu zerkleinernde Material ausgesetzt, welches in den verschiedensten Richtungen auftretende Kräfte auf die Schleißplatten überträgt. So tritt insbesondere in bestimmten Bereichen des Gehäusebodens, aufgrund der zwischen diesem und den Schlaghämmern ablaufenden Reib-, Mahl- und Druckbeanspruchung, ein Höchstmaß an Belastung auf, so daß einzelne Roste oder Schleißplatten einem vergleichsweise stärkeren Verschleiß unterliegen und dem zufolge eine geringere Standzeit aufweisen, als andere. Dieser Verschleiß führt außerdem zu dem Nachteil, daß die großen Kräfte, die das Schlagwerkzeug auf die Roste und Schleißplatten ausübt, zu einer Längung der Roste und Schleißplatten und den dort befindlichen Öffnungen oder Vertiefungen führen. Diese Vergrößerung der Roste und der Schleißplatten erschwert ihre Befestigung an der Vorrichtung und vor allein ihre Demontage. Eine Demontage kann sehr häufig wegen einer Verkeilung der Platten oder Roste in der Anlage nur durch aufwendiges Zerlegen mittels Schweißbrenner erfolgen. Dies führt meist zur vollständigen Zerstörung der Roste oder Schleißplatten. Ein gewünschtes häufiges Auswechseln der Roste oder Platten zur Produktion verschiedener Materialien, d. h. das Auswechseln nur teilweise verschliessener Platten zum späteren Wiedereinsatz und zur Variation der Lochgrößen ist bisher nicht möglich.In operation, wear plates are exposed to extremely high stresses due to the material to be shredded, which transmits forces occurring in the most varied of directions to the wear plates. Thus, in particular in certain areas of the housing base, due to the friction, grinding and pressure stress that runs between it and the impact hammers, a maximum degree of stress occurs, so that individual grates or wear plates are subject to comparatively greater wear and therefore have a shorter service life, than others. This wear also leads to the disadvantage that the large forces exerted by the striking tool on the grates and wear plates cause elongation of the grates and wear plates and openings or depressions located there. This enlargement of the grids and wear plates makes it difficult to attach them to the device and, above all, to disassemble them. Disassembly can very often only be carried out due to wedging of the plates or grates in the system by expensive disassembly using a welding torch. This usually leads to the complete destruction of the grates or wear plates. A desired frequent replacement of the grids or plates for the production of different materials, ie the replacement of only partially closed plates for later reuse and for varying the hole sizes has not been possible up to now.
Der Erfindung liegt daher die Aufgabe zugrunde, eine Vorrichtung der eingangs beschriebenen Art derart weiterzubilden, daß die Längung der Roste oder der Schleißplatten während ihres Einsatzes verringert wird.The invention is therefore based on the object of developing a device of the type described at the outset in such a way that the elongation of the grids or the wear plates is reduced during their use.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die Öffnungen oder Vertiefungen Stege begrenzen, deren Verlauf zumindest in Richtung der Achse des Schlagwerkzeugs von einer geraden Linie abweicht.This object is achieved in that the openings or recesses limit webs, the course of which deviates from a straight line at least in the direction of the axis of the striking tool.
Der Erfindung liegt die Erkenntnis zugrunde, daß die starke Längung von Schleißplatten oder Rosten von der Plattengeometrie abhängig ist und eine spezielle Form der Öffnungen oder Vertiefungen die Längung verringert. Da der Verlauf der zwischen den Öffnungen oder Vertiefungen befindlichen Stege erfindungsgemäß von einer geraden Linie abweicht, führt eine Längung der Stege nicht zwangsläufig zu einer Längung der Schleißplatte, sondern kann auch zu Verformungen innerhalb des Rostes oder der Schleißplatte führen, die sich nicht auf die Abmessungen des Rostes oder der Schleißplatte auswirken.The invention is based on the knowledge that the strong elongation of wear plates or grates depends on the plate geometry and that a special shape of the openings or depressions reduces the elongation. Since the course of the webs located between the openings or depressions deviates according to the invention from a straight line, an elongation of the webs does not necessarily lead to an elongation of the wear plate, but can also lead to deformations within the grate or the wear plate which do not affect the dimensions of the grate or wear plate.
Schon das Einbringen einzelner nicht geradlinig verlaufender Stege in die Roste oder Platten führt zu einer Verringerung der Längung während des Einsatzes und vorzugsweise werden sowohl die in Richtung der Achse des Schlagwerkzeuges als auch die quer dazu verlaufenden Stege so ausgebildet, daß ihr Verlauf von einer geraden Linie abweicht.Even the introduction of individual non-rectilinear webs into the grids or plates leads to a reduction in elongation during use, and preferably both the webs running in the direction of the axis of the striking tool and the webs running transversely thereto are designed such that their course is in a straight line deviates.
Eine derartige Ausbildung führt dazu, daß in Richtung der Achse des Schlagwerkzeugs angeordnete Roste oder Platten während ihres Einsatzes eine geringere Kraft auf die seitlichen Begrenzungsflächen der Vorrichtung ausüben und ein Verringern der Längung quer zur Rotorachse erleichtert das Auswechseln von nebeneinander angeordneten Rosten oder Platten.Such a design means that grids or plates arranged in the direction of the axis of the striking tool exert less force on the lateral boundary surfaces of the device during their use and a reduction in the elongation transversely to the rotor axis facilitates the exchange of grids or plates arranged next to one another.
Besonders vorteilhaft ist es, wenn die Öffnungen versetzt zueinander angeordnet sind und im wesentlichen sechseckig sind. Diese Ausgestaltung bringt den weiteren Vorteil, daß an jedem Knotenpunkt nur drei Stege aufeinander treffen. Bei Schleißplatten, wie sie im Stand der Technik beschrieben sind, sind die Öffnungen oder Vertiefungen quadratisch und somit treffen an jedem Knotenpunkt vier Stege aufeinander. Dies hat gußtechnische Nachteile. Bei den erfindungsgemäßen Rosten oder Platten führt die spezielle Form ihrer Öffnungen zu einer erheblichen Kostenreduktion bei ihrer Herstellung.It is particularly advantageous if the openings are arranged offset from one another and are essentially hexagonal. This configuration has the further advantage that only three webs meet at each node. With wear plates, as described in the prior art, the openings or depressions are square and thus four webs meet at each node. This has casting disadvantages. With the gratings or panels according to the invention, the special shape of their openings leads to a considerable reduction in the cost of their production.
Bei einer so ausgebildeten Schleißplatte oder einen so ausgebildeten Rost läuft jedes Schlagwerkzeug, das auf einer geraden Linie sich relativ zu den Öffnungen bewegt, abwechselnd über Öffnungen und Stege, wodurch das Formverhalten der Vorrichtung deutlich verbessert wird.With a wear plate or grate designed in this way, each impact tool that moves in a straight line relative to the openings runs alternately over openings and webs, as a result of which the shape behavior of the device is significantly improved.
Um auch im Randbereich gleichgroße Öffnungen zu erhalten, sieht eine vorteilhafte Ausgestaltung vor, daß die Öffnungen in einem Randbereich fünfeckig sind und die gleiche Fläche wie in einem mittleren Bereich aufweisen. Die fünfeckige Öffnungsform im Randbereich erlaubt einen geraden Randabschluß der Schleißplatte oder des Rostes und erlaubt es, Öffnungen auszubilden, die in ihrer Fläche den sechseckigen Öffnungen im mittleren Bereich entsprechen.In order to obtain openings of the same size in the edge area as well, an advantageous embodiment provides that the openings are pentagonal in an edge area and have the same area as in a central area. The pentagonal opening shape in the edge area allows a straight edge termination of the wear plate or the grate and allows openings to be formed which correspond in their area to the hexagonal openings in the central area.
Eine alternative Ausgestaltungsform sieht vor, daß die Öffnungen oder Vertiefungen versetzt zueinander angeordnet sind und rund sind. Auch runde Öffnungen bieten gußtechnisch und in Bezug auf die Längungseigenschaften der Schleißplatte oder der Roste ähnliche Vorteile wie sechseckige Öffnungen und werden daher als alternative Ausgestaltungsform vorgeschlagen.An alternative embodiment provides that the openings or depressions are offset from one another and are round. Round openings also offer similar advantages to hexagonal openings in terms of casting technology and in relation to the elongation properties of the wear plate or the gratings and are therefore proposed as an alternative embodiment.
Bei der Verwendung von runden Öffnungen ist es vorteilhaft, wenn die Öffnungen in einem Randbereich eine gerade Seite aufweisen. Dadurch wird erreicht, daß bis in den Randbereich des Rostes oder der Schleißplatte Öffnungen vorgesehen werden, und auch diese Öffnungen sind so zu gestalten, daß die Öffnungen im Randbereich die gleiche Durchgangsfläche aufweisen wie die Öffnungen im mittleren Bereich des Rostes oder der Schleißplatte.When using round openings, it is advantageous if the openings have a straight side in an edge region. This ensures that openings are provided up to the edge region of the grate or the wear plate, and these openings are also to be designed such that the openings in the edge region have the same passage area as the openings in the central region of the grate or the wear plate.
Eine vorteilhafte Ausgestaltung sieht vor, daß die Roste quer zur Achse des Schlagwerkzeugs angeordnet sind. Da der erfindungsgemäße Verlauf der Stege die Längung der Platten oder Roste reduziert, wird eine derartige Anordnung möglich.An advantageous embodiment provides that the grids are arranged transversely to the axis of the striking tool. Since the course of the webs according to the invention reduces the elongation of the plates or gratings, such an arrangement is possible.
Außerdem ist es vorteilhaft, wenn die Roste in einer Richtung quer zur Achse des Schlagwerkzeugs kleiner werdende Öffnungen aufweisen. Eine derartige Verkleinerung der Öffnungen führt zu einem anderen Mahlverhalten und insbesondere an Deckenrosten von Hammermühlen kann eine derartige Ausgestaltung der Öffnungen ein Zurückfallen von zerkleinertem Material in den Bereich der arbeitenden Schlagwerkzeuge verhindern.It is also advantageous if the grids have openings that become smaller in a direction transverse to the axis of the striking tool. Such a reduction in the size of the openings leads to a different grinding behavior, and in particular on ceiling grates of hammer mills, such a configuration of the openings can prevent comminuted material from falling back into the area of the working impact tools.
Außerdem wird vorgeschlagen, die Roste in Rahmen anzuordnen und parallel zur Rotorachse und schräg zu einer Tangente an die Bahn des Schlagwerkzeugs anzuordnen. Auch eine derartige Anordnung ändert das Mahlverhalten und führt vorallem am Deckenrost zu einer besseren Führung des durch den Rost hindurchgetretenen Materials.It is also proposed to arrange the grids in frames and to arrange them parallel to the rotor axis and obliquely to a tangent to the path of the striking tool. Such an arrangement also changes the grinding behavior and, particularly on the ceiling grate, leads to better guidance of the material which has passed through the grate.
Da die Platten oder Roste wegen ihrer speziellen Geometrie sich nicht so stark ausdehnen wie bekannte Schleißplatten oder Roste, können die erfindungsgemäßen Schleißplatten oder Roste auch aus Stählen mit hoher Schleißfestigkeit, wie z. B. austenitischem Stahl hergestellt werden, die wegen ihrer starken Verformbarkeit bisher nicht zum Einsatz kommen konnten.Since the plates or grates do not expand as much due to their special geometry as known wear plates or grates, the wear plates or grates according to the invention can also be made from steels with high wear resistance, such as, for example, B. austenitic steel can be made, which could not be used because of their strong ductility.
Ein Ausführungsbeispiel der Erfindung ist in den Zeichnungen dargestellt und wird im folgenden näher beschrieben.An embodiment of the invention is shown in the drawings and will be described in more detail below.
Es zeigt:
Figur 1 eine erfindungsgem. Hammermühle und- Figur 2 verschiedene Ausführungsformen der Roste oder Schleißplatten
- 1 shows an inventive. Hammer mill and
- Figure 2 different embodiments of the grates or wear plates
Die in Figur 1 gezeigte Hammermühle 1 ist in Ihrem Aufbau bekannt. Von der linken Seite rutschen über eine Rampe 2 Kraftfahrzeuge 3 in den Rotorraum 4. In diesem Rotorraum 4 befindet sich ein Schlagwerkzeug 5, das auf einer Achse 6 drehbar gelagert ist. Das Schlagwerkzeug 5 bewegt sich dabei in Richtung der Pfeile 7 und zerfetzt das Kraftfahrzeug 3. Die entstehenden Teile 8 werden im Rotorraum zwischen dem Schlagwerkzeug 5 und Rosten 9 zermalen. Die Roste 9 weisen Öffnungen 10 auf, an deren Kanten die Teile 8 zermalen werden und durch die die Teile 8, wenn sie klein genug sind, aus dem Rotorraum 4 austreten.The structure of the
Die ausgetretenen Teile 8 fallen dann auf eine Schurre 11, auf der sie aus der Hammermühle heraus auf ein Förderband 12 gelangen.The leaked parts 8 then fall onto a
Die Roste 9 sind halbkreisförmig um das Schlagwerkzeug angeordnet. Im unteren Bereich befinden sich Bodenroste. In Richtung des Schlagwerkzeugs 5 an die Bodenroste anschließend befindet sich eine Auswurftüre 13, die sich bei Explosionen öffnen kann, und daran schließt sich ein Deckenrost 14 an.The
Um die Roste 9 ist auf der dem Schlagwerkzeug 5 gegenüberliegenden Seite eine Haube 15 vorgesehen, die die durch die Roste hindurchtretenden Teile 8 auf die Schurre 11 leitet.Around the
Die Bodenroste sind bei der Hammermühle nach Figur 1 quer zur Achse 6 des Schlagwerkzeugs 5 angeordnet und eine Längung der Bodenroste drückt somit nicht auf die seitliche Abdeckung 16 der Haube 15.In the hammer mill according to FIG. 1, the bottom gratings are arranged transversely to the
Verschiedene Möglichkeiten der Ausbildung der Bodenroste, der Auswurftüre und der Deckenroste sind in Figur 2 dargestellt. Figur 2a zeigt die herkömmliche Ausbildung der Roste, bei der in Längsrichtung 17 und in Querrichtung 18 der Roste 9 Stege 19 bzw. 20 angeordnet sind. Diese Stege bewirken bei längerer Verwendung der Roste eine Ausdehnung des Rostes in Richtung der Pfeile 17 bzw. 18.Different possibilities for the formation of the floor grates, the ejection door and the ceiling grilles are shown in FIG. 2. FIG. 2a shows the conventional design of the grids, in which
Um Ausdehnungen in beide Richtungen zu vermeiden, wird nach der Erfindung ein Rost nach der Figur 2b vorgeschlagen, bei dein die Stege sowohl in Längsrichtung 21 als auch in Querrichtung 22 keine durchgehende Linie bilden. Eine derartige Rostgestaltung kann für den Deckenrost die Auswurftüre und den Bodenrost verwendet werden. Ein Ausschnitt eines Bodenrostes zeigt die Figur 2c in der Draufsicht und die Fig. 2d als perspektivische Ansicht.In order to avoid expansions in both directions, a grate according to FIG. 2b is proposed according to the invention, in which the webs do not form a continuous line either in the longitudinal direction 21 or in the
Weitere erfindungsgemäße Ausführungsformen zeigen die Figuren 2e und f, wobei in der Figur 2e die Stege 23 diagonal zur Platte angeordnet sind und somit sowohl in Längsrichtung 24 als auch in Querrichtung 25 der Platte eine Zickzacklinie bilden.Further embodiments of the invention are shown in FIGS. 2e and f, in which the
Die in Fig. 2f dargestellte Ausführungsform zeigt schematisch die Verwendung von fünfeckigen Öffnungen 10, die ebenfalls so angeordnet werden können, daß entweder in Längsrichtung oder in Querrichtung zur Platte eine Zickzacklinie entsteht.The embodiment shown in Fig. 2f shows schematically the use of
Letztlich zeigt Fig. 2g) einen quer zur Rotorachse verlaufenden Rost mit 6-eckigen Öffnungen.Ultimately, Fig. 2g) shows a grate running transversely to the rotor axis with hexagonal openings.
Claims (9)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19609347A DE19609347A1 (en) | 1996-03-11 | 1996-03-11 | Device for shredding sheet metal and. material |
| DE19609347 | 1996-03-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0795352A1 true EP0795352A1 (en) | 1997-09-17 |
| EP0795352B1 EP0795352B1 (en) | 1999-12-15 |
Family
ID=7787842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP97103686A Expired - Lifetime EP0795352B1 (en) | 1996-03-11 | 1997-03-06 | Swing-hammer crusher for plates or similar material |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US5950940A (en) |
| EP (1) | EP0795352B1 (en) |
| JP (1) | JP4031080B2 (en) |
| AT (1) | ATE187662T1 (en) |
| DE (2) | DE19609347A1 (en) |
| DK (1) | DK0795352T3 (en) |
| ES (1) | ES2142637T3 (en) |
| GR (1) | GR3032786T3 (en) |
| PT (1) | PT795352E (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19835796C2 (en) * | 1998-08-07 | 2001-12-06 | Svedala Lindemann Gmbh | Method for operating the air circuit and conveying the flow of material in the housing of a hammer crusher and housing of a hammer crusher for carrying out the method |
| US7942353B2 (en) * | 2006-10-26 | 2011-05-17 | Allegheny Paper Shredders Corporation | Adjustable screen for material destruction apparatus |
| DE102007058127A1 (en) * | 2007-11-30 | 2009-06-04 | Pallmann Maschinenfabrik Gmbh & Co Kg | Device for dissolving the composite of feedstock present in the composite |
| US8740121B1 (en) * | 2009-06-19 | 2014-06-03 | Republic Machine, Inc. | Rotary grinder/shredder |
| CN103285974A (en) * | 2013-06-03 | 2013-09-11 | 嘉兴市一建机械制造有限公司 | Grid plate for crusher |
| GB201815328D0 (en) * | 2018-09-20 | 2018-11-07 | Agco Int Gmbh | Rotary cleaning shoe |
| DE102020102614B4 (en) | 2020-02-03 | 2023-10-26 | Albert Hoffmann Gmbh | Hammer mill |
| DE102020102611B4 (en) | 2020-02-03 | 2023-04-27 | Albert Hoffmann Gmbh | hammer mill |
| DE102020102607A1 (en) | 2020-02-03 | 2021-08-05 | Albert Hoffmann Gmbh | Hammer mill |
| BE1030121B1 (en) * | 2021-12-28 | 2023-07-26 | Belgian Scrap Terminal Nv | Bottom grate for processing metals |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2946523A (en) * | 1955-07-18 | 1960-07-26 | Strong Scott Mfg Company | Interchangeable screen construction for mill |
| US4061277A (en) * | 1976-09-20 | 1977-12-06 | Sivyer Steel Corporation | Shredder with grate cartridge |
| GB1577769A (en) * | 1977-05-18 | 1980-10-29 | Maillet E J | Shredders notably for processing heterogeneous materials |
| GB2068260A (en) * | 1980-01-30 | 1981-08-12 | Previero Sas | Selecting grating for granulating mill |
| US4378756A (en) * | 1979-09-10 | 1983-04-05 | Recycled Paper Bedding, Inc. | Animal bedding, process and apparatus for preparing the same |
| US5150844A (en) * | 1986-11-04 | 1992-09-29 | Shanley And Baker | Apparatus for size reduction of heavy solid waste materials |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1523614A (en) * | 1922-07-14 | 1925-01-20 | Harry J Shelton | Grinder and shredder |
| DE7301542U (en) * | 1973-01-12 | 1973-04-05 | American Pulverizer Co | GRATING FOR CRUSHING GRINDERS |
-
1996
- 1996-03-11 DE DE19609347A patent/DE19609347A1/en not_active Ceased
-
1997
- 1997-03-06 DE DE59700834T patent/DE59700834D1/en not_active Expired - Lifetime
- 1997-03-06 DK DK97103686T patent/DK0795352T3/en active
- 1997-03-06 ES ES97103686T patent/ES2142637T3/en not_active Expired - Lifetime
- 1997-03-06 AT AT97103686T patent/ATE187662T1/en active
- 1997-03-06 EP EP97103686A patent/EP0795352B1/en not_active Expired - Lifetime
- 1997-03-06 PT PT97103686T patent/PT795352E/en unknown
- 1997-03-10 JP JP05514997A patent/JP4031080B2/en not_active Expired - Lifetime
- 1997-03-10 US US08/814,271 patent/US5950940A/en not_active Expired - Lifetime
-
2000
- 2000-02-29 GR GR20000400487T patent/GR3032786T3/en unknown
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2946523A (en) * | 1955-07-18 | 1960-07-26 | Strong Scott Mfg Company | Interchangeable screen construction for mill |
| US4061277A (en) * | 1976-09-20 | 1977-12-06 | Sivyer Steel Corporation | Shredder with grate cartridge |
| GB1577769A (en) * | 1977-05-18 | 1980-10-29 | Maillet E J | Shredders notably for processing heterogeneous materials |
| US4378756A (en) * | 1979-09-10 | 1983-04-05 | Recycled Paper Bedding, Inc. | Animal bedding, process and apparatus for preparing the same |
| GB2068260A (en) * | 1980-01-30 | 1981-08-12 | Previero Sas | Selecting grating for granulating mill |
| US5150844A (en) * | 1986-11-04 | 1992-09-29 | Shanley And Baker | Apparatus for size reduction of heavy solid waste materials |
Also Published As
| Publication number | Publication date |
|---|---|
| DE19609347A1 (en) | 1997-09-18 |
| ATE187662T1 (en) | 2000-01-15 |
| GR3032786T3 (en) | 2000-06-30 |
| ES2142637T3 (en) | 2000-04-16 |
| JPH10369A (en) | 1998-01-06 |
| JP4031080B2 (en) | 2008-01-09 |
| DE59700834D1 (en) | 2000-01-20 |
| DK0795352T3 (en) | 2000-05-08 |
| US5950940A (en) | 1999-09-14 |
| PT795352E (en) | 2000-06-30 |
| EP0795352B1 (en) | 1999-12-15 |
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