EP0370861A1 - Hammer mill with central feeding for shredding metal objects - Google Patents

Hammer mill with central feeding for shredding metal objects Download PDF

Info

Publication number
EP0370861A1
EP0370861A1 EP89403114A EP89403114A EP0370861A1 EP 0370861 A1 EP0370861 A1 EP 0370861A1 EP 89403114 A EP89403114 A EP 89403114A EP 89403114 A EP89403114 A EP 89403114A EP 0370861 A1 EP0370861 A1 EP 0370861A1
Authority
EP
European Patent Office
Prior art keywords
covers
drum
mill
crushing
crusher according
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.)
Withdrawn
Application number
EP89403114A
Other languages
German (de)
French (fr)
Inventor
Arnaud Becker
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0370861A1 publication Critical patent/EP0370861A1/en
Withdrawn legal-status Critical Current

Links

Images

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
    • 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
    • B02C13/286—Feeding or discharge

Definitions

  • the present invention relates to the field of recovery of metallic products from manufactured objects, in particular by shredding, and relates to a hammer mill, with central feed, for shredding metallic objects.
  • the recovery of metallic products from end-of-life objects, in particular motor vehicles, by means of crushers or shredders is carried out by application of known methods, which generally consist in introducing said metallic products, by means of a feed device with crushing drums and an introduction ramp, in a hammer mill which tears off and shreds the material entering said mill, by interaction with one or more anvils, and which ejects and / or evacuates through walls screening the metallic waste obtained, having a predetermined size, this waste then being treated with a view to eliminating materials unfit for reuse and sorting the remaining materials according to their metallurgical characteristics.
  • the presently existing grinding devices generally have, in particular according to FR-A-2 522 536, a feed device whose crushing drums are arranged at a fixed position on a frame which can be tilted relative to the ramp for introduction into the grinder.
  • This tilting of the chassis allows adjustment of the crushing of the metal object to be shredded subsequently, by means of the crushing drums which simultaneously carry out an action of transporting said object in the direction of the inlet of said grinder.
  • the present invention aims to overcome these drawbacks.
  • a hammer mill for shredding metal objects essentially constituted by hammers mounted on a drive drum disposed in a grinding chamber provided with screening walls in the lower part and in the upper part and by a feed device with crushing drums, characterized in that it has an upper central feed, in that it is provided, in addition, with two covers pivotally mounted on the frame of the crusher and delimiting, on the side opposite to their axis of articulation, the central feed inlet of the mill, in that the hammer drive drum is driven in both directions of rotation, and in that the crushing drum feed device is mounted at pivoting on one of the pivoting covers or on the lower chassis of the mill, so that it can be moved in the space defined between the covers.
  • the hammer mill for shredding metallic objects which essentially consists of hammers 1 mounted on a drive drum 2 disposed in a grinding enclosure 3 provided with screening walls 4 and 5 in the lower part and in the upper part, this enclosure 3 being connected to a supply device 6 provided with crushing drums 7, 8, is characterized in that it has an upper central supply, in that it is further provided with two covers 9 pivotally mounted on the chassis 10 of the mill and delimiting, on the side opposite their axis of articulation 11, the inlet 12 central supply of the crusher, in that the hammer drive drum 2 is driven in both directions of rotation, and in that the crushing drum supply device 7, 8 is pivotally mounted on one of the pivoting covers 9 or on the lower chassis 10 of the mill, so that it can be moved in the space delimited between the covers 9.
  • the covers 9 are advantageously mounted with articulation on two opposite sides of the chassis 10 of the crusher and are pivotable between the open and closed positions by means of hydraulic jacks 13 fixed at one end to the chassis 10 and at their other end to the covers 9.
  • This embodiment makes it possible to completely free access to the enclosure 3 and therefore to the drum 2 for driving the hammers 1, in particular for interventions of repair or change of said hammers 1.
  • the lower screening wall 4 is advantageously in the form of a grid extending in the bottom of the chassis 10 around the drum 2 and is extended on either side, parallel to the axis of the drum 2, by bars 14 of shredding and densification, square, round or other.
  • the bars 14 can also be replaced by grids. In such a case, the efficiency of the mill can be significantly increased.
  • the pivoting covers 9 each have, internally, an interchangeable and movable upper screening wall 5 above the grinding chamber 3, in the closing position of the covers 9, by means of at least one hydraulic cylinder 16, the section, closed by this screening wall 5 in the service position, being delimited in the direction of the grinding chamber 3 by densification walls 17 and 18 extending, respectively, up to the shredding and densification bar 14 upper, in position for closing the cover, and up to a reversible anvil 19 extending along the cover 9 on the side opposite its hinge pin 11 (FIG. 1).
  • the upper screening walls 5, movable by means of the jacks 16, serve, in their retracted position releasing the corresponding opening in the cover, ejection valves for objects which cannot be shredded.
  • the reversible anvils 19 are anvils which have four effective edges and that it therefore suffices simply to turn a quarter of a turn, after wear of an edge, to have a new effective edge. These anvils are advantageously fixed, in a known manner, by bolting or by a through axis bearing on the side walls.
  • each cover 9 has a chamber 20 for discharging the dense ground products communicating with the chamber 21, extending in the frame 10 under the screening wall 4.
  • the feed device with crushing drums 7 and 8 is advantageously, as shown in FIG. 1, in the form of a pair of support arms 22 pivotally mounted on the sides of one of the covers 9 against the action of hydraulic cylinders 23 (FIG. 2) and carrying at least one crushing drum 7, one or more crushing drums 8 being mounted movably relative to the drum 7 and to the arm 22 on a pivoting support frame 24 articulated at the free end of the arms 22 and actuated by means of hydraulic cylinders 25.
  • hydraulic cylinders 23 FIG. 2
  • the drum 2 can operate indifferently in both directions of rotation, due to the perfect symmetry of the ejection grids with respect to the vertical axis of the mill.
  • the invention it is possible to produce a hammer mill, in which the hammer drive drum can rotate in both directions, thus allowing regular wear of the hammers without dismantling them, therefore with an optimization of the yield.
  • the feeding of this mill can also be carried out optimally, the rolling of the objects to be ground can be adjusted.
  • the mill according to the invention being provided with a central feed inlet, its size, with capacity for equal grinding, is significantly lower than that of known mills and its yield is significantly higher.

Abstract

The present invention relates to a hammer mill for the shredding of metal articles, which consist essentially of hammers (1) mounted on a drive drum (2) arranged in a crushing enclosure (3) equipped with riddling walls (4 and 5) in the lower part and upper part and of a feed device (6) with crossing drums (7, 8), characterised in that it has an upper central feed (12), in that it is equipped, furthermore, with two covers (9) mounted pivotably on the frame (10) of the mill and delimiting the central feed entrance (12) of the mill on the opposite side to their opposite axle (11), in that the drum (2) driving the hammers (1) is driven in the two directions of rotation, and in that the feed device (6) with crossing drums (7, 8) is mounted pivotably on one of the pivoting covers (9) or on the lower frame of the mill so as to be displaceable in the space delimited between the covers (9). <IMAGE>

Description

La présente invention concerne le domaine de la récupération de produits métalliques à partir d'objets manufacturés, en particulier par déchiquetage, et a pour objet un broyeur à marteaux, à alimentation centrale, pour le déchiquetage d'objets métalliques.The present invention relates to the field of recovery of metallic products from manufactured objects, in particular by shredding, and relates to a hammer mill, with central feed, for shredding metallic objects.

La récupération de produits métalliques à par­tir d'objets hors d'usage, en particulier de véhicules automobiles, au moyen de concasseurs ou de broyeurs, est effectuée par application de procédés connus, qui con­sistent généralement à introduire lesdits produits mé­talliques, au moyen d'un dispositif d'alimentation à tambours écraseurs et à rampe d'introduction, dans un broyeur à marteaux qui arrache et déchiquette la matière entrant dans ledit broyeur, par interaction avec une ou plusieurs enclumes, et qui éjecte et/ou évacue à travers des parois criblantes les déchets métalliques obtenus, présentant un calibre prédéterminé, ces déchets étant ensuite traités en vue d'une élimination des matières impropres à la réutilisation et d'un tri des matières restantes en fonction de leurs caractéristiques métal­lurgiques.The recovery of metallic products from end-of-life objects, in particular motor vehicles, by means of crushers or shredders, is carried out by application of known methods, which generally consist in introducing said metallic products, by means of a feed device with crushing drums and an introduction ramp, in a hammer mill which tears off and shreds the material entering said mill, by interaction with one or more anvils, and which ejects and / or evacuates through walls screening the metallic waste obtained, having a predetermined size, this waste then being treated with a view to eliminating materials unfit for reuse and sorting the remaining materials according to their metallurgical characteristics.

Les dispositifs de broyage existants actuelle­ment présentent généralement, en particulier selon FR-A-2 522 536, un dispositif d'alimentation dont les tambours écraseurs sont disposés à poste fixe sur un châssis pouvant être basculé par rapport à la rampe d'introduction dans le broyeur.The presently existing grinding devices generally have, in particular according to FR-A-2 522 536, a feed device whose crushing drums are arranged at a fixed position on a frame which can be tilted relative to the ramp for introduction into the grinder.

Ce basculement du châssis permet un réglage de l'écrasement, de l'objet métallique à déchiqueter ulté­rieurement, au moyen des tambours écraseurs qui réali­sent simultanément une action de transport dudit objet en direction de l'entrée dudit broyeur.This tilting of the chassis allows adjustment of the crushing of the metal object to be shredded subsequently, by means of the crushing drums which simultaneously carry out an action of transporting said object in the direction of the inlet of said grinder.

Cependant, dans ce dispositif connu, l'écarte­ment individuel des tambours par rapport à la rampe d'introduction reste fixe, de sorte qu'il n'est pas pos­sible de modifier l'écrasement réalisé respectivement par chaque tambour individuellement.However, in this known device, the individual spacing of the drums relative to the introduction ramp remains fixed, so that it is not possible to modify the crushing produced respectively by each drum individually.

En outre, les broyeurs à marteaux existants né­cessitent toujours une rampe d'alimentation spéciale dé­bouchant à leur entrée et entraînant une augmentation substantielle de leur encombrement.In addition, existing hammer mills still require a special feed ramp leading to their entry and resulting in a substantial increase in their size.

La présente invention a pour but de pallier ces inconvénients.The present invention aims to overcome these drawbacks.

Elle a, en effet, pour objet un broyeur à mar­teaux pour le déchiquetage d'objets métalliques, essen­tiellement constitué par des marteaux montés sur un tam­bour d'entraînement disposé dans une enceinte de broyage pourvue de parois criblantes en partie inférieure et en partie supérieure et par un dispositif d'alimentation à tambours écraseurs, caractérisé en ce qu'il présente une alimentation centrale supérieure, en ce qu'il est pour­vu, en outre, de deux couvercles montés pivotants sur le châssis du broyeur et délimitant, du côté opposé à leur axe d'articulation, l'entrée d'alimentation centrale du broyeur, en ce que le tambour d'entraînement des mar­teaux est entraîné dans les deux sens de rotation, et en ce que le dispositif d'alimentation à tambours écraseurs est monté à pivotement sur l'un des couvercles pivotants ou sur le châssis inférieur du broyeur, de manière dé­plaçable dans l'espace délimité entre les couvercles.It has, in effect, a hammer mill for shredding metal objects, essentially constituted by hammers mounted on a drive drum disposed in a grinding chamber provided with screening walls in the lower part and in the upper part and by a feed device with crushing drums, characterized in that it has an upper central feed, in that it is provided, in addition, with two covers pivotally mounted on the frame of the crusher and delimiting, on the side opposite to their axis of articulation, the central feed inlet of the mill, in that the hammer drive drum is driven in both directions of rotation, and in that the crushing drum feed device is mounted at pivoting on one of the pivoting covers or on the lower chassis of the mill, so that it can be moved in the space defined between the covers.

L'invention sera mieux comprise grâce à la des­cription ci-après, qui se rapporte à un mode de réalisa­tion préféré, donné à titre d'exemple non limitatif, et expliqué avec référence aux dessins schématiques annexés, dans lesquels :

  • la figure 1 est une vue en élévation latérale et en cou­pe du broyeur conforme à l'invention muni du dispositif d'alimentation, et
  • la figure 2 est une vue en élévation latérale correspon­dante du broyeur.
The invention will be better understood from the description below, which relates to a preferred embodiment, given by way of nonlimiting example, and explained with reference to the appended schematic drawings, in which:
  • FIG. 1 is a side elevation view in section of the mill according to the invention fitted with the feed device, and
  • Figure 2 is a corresponding side elevational view of the mill.

Conformément à l'invention, et comme le mon­trent plus particulièrement, à titre d'exemple, les fi­gures 1 et 2 des dessins annexés, le broyeur à marteaux pour le déchiquetage d'objets métalliques, qui est essentiellement constitué par des marteaux 1 montés sur un tambour d'entraînement 2 disposé dans une enceinte de broyage 3 pourvue de parois criblantes 4 et 5 en partie inférieure et en partie supérieure, cette enceinte 3 étant reliée à un dispositif d'alimentation 6 muni de tambours écraseurs 7, 8, est caractérisé en ce qu'il présente une alimentation centrale supérieure, en ce qu'il est pourvu, en outre, de deux couvercles 9 montés pivotants sur le châssis 10 du broyeur et délimitant, du côté opposé à leur axe d'articulation 11, l'entrée 12 d'alimentation centrale du broyeur, en ce que le tambour 2 d'entraînement des marteaux 1 est entraîné dans les deux sens de rotation, et en ce que le dispositif d'ali­mentation à tambours écraseurs 7, 8 est monté à pivote­ment sur l'un des couvercles pivotants 9 ou sur le châs­sis inférieur 10 du broyeur, de manière déplaçable dans l'espace délimité entre les couvercles 9.In accordance with the invention, and as shown more particularly, by way of example, FIGS. 1 and 2 of the appended drawings, the hammer mill for shredding metallic objects, which essentially consists of hammers 1 mounted on a drive drum 2 disposed in a grinding enclosure 3 provided with screening walls 4 and 5 in the lower part and in the upper part, this enclosure 3 being connected to a supply device 6 provided with crushing drums 7, 8, is characterized in that it has an upper central supply, in that it is further provided with two covers 9 pivotally mounted on the chassis 10 of the mill and delimiting, on the side opposite their axis of articulation 11, the inlet 12 central supply of the crusher, in that the hammer drive drum 2 is driven in both directions of rotation, and in that the crushing drum supply device 7, 8 is pivotally mounted on one of the pivoting covers 9 or on the lower chassis 10 of the mill, so that it can be moved in the space delimited between the covers 9.

Les couvercles 9 sont avantageusement montés à articulation sur deux côtés opposés du châssis 10 du broyeur et sont pivotables entre les positions d'ouver­ture et de fermeture au moyen de vérins hydrauliques 13 fixés à une extrémité sur le châssis 10 et à leur autre extrémité sur les couvercles 9. Ce mode de réalisation permet de dégager entièrement l'accès à l'enceinte 3 et donc au tambour 2 d'entraînement des marteaux 1, notam­ment pour des interventions de réparation ou de change­ment desdits marteaux 1.The covers 9 are advantageously mounted with articulation on two opposite sides of the chassis 10 of the crusher and are pivotable between the open and closed positions by means of hydraulic jacks 13 fixed at one end to the chassis 10 and at their other end to the covers 9. This embodiment makes it possible to completely free access to the enclosure 3 and therefore to the drum 2 for driving the hammers 1, in particular for interventions of repair or change of said hammers 1.

La paroi criblante inférieure 4 est avanta­geusement sous forme d'une grille s'étendant dans le fond du châssis 10 autour du tambour 2 et est prolongée de part et d'autre, parallèlement à l'axe du tambour 2, par des barreaux 14 de déchiquetage et de densification, de section carrée, ronde ou autre.The lower screening wall 4 is advantageously in the form of a grid extending in the bottom of the chassis 10 around the drum 2 and is extended on either side, parallel to the axis of the drum 2, by bars 14 of shredding and densification, square, round or other.

Selon une variante de réalisation de l'inven­ tion, non représentée aux dessins annexés, les barreaux 14 peuvent également être remplacés par des grilles. Dans un tel cas, le rendement du broyeur peut être sen­siblement augmenté.According to an alternative embodiment of the invention tion, not shown in the accompanying drawings, the bars 14 can also be replaced by grids. In such a case, the efficiency of the mill can be significantly increased.

Les couvercles pivotants 9 présentent chacun, intérieurement, une paroi criblante supérieure 5 inter­changeable et mobile au-dessus de l'enceinte de broyage 3, en position de fermeture des couvercles 9, au moyen d'au moins un vérin hydraulique 16, la section, fermée par cette paroi criblante 5 en position de service, étant délimitée en direction de l'enceinte de broyage 3 par des parois de densification 17 et 18 s'étendant, respectivement, jusqu'au barreau de déchiquetage et de densification 14 supérieur, en position de fermeture du couvercle, et jusqu'à une enclume réversible 19 s'éten­dant le long du couvercle 9 du côté opposé à son axe d'articulation 11 (figure 1). Les parois criblantes su­périeures 5, mobiles au moyen des vérins 16, servent, dans leur position rétractée libérant l'ouverture cor­respondante dans le couvercle, de clapets d'éjection pour des objets ne pouvant être broyés. Les enclumes ré­versibles 19 sont des enclumes qui présentent quatre arêtes efficaces et qu'il suffit donc simplement de tourner d'un quart de tour, après usure d'une arête, pour disposer d'une nouvelle arête efficace. Ces enclu­mes sont avantageusement fixées, de manière connue, par boulonnage ou par un axe traversant prenant appui sur les parois latérales.The pivoting covers 9 each have, internally, an interchangeable and movable upper screening wall 5 above the grinding chamber 3, in the closing position of the covers 9, by means of at least one hydraulic cylinder 16, the section, closed by this screening wall 5 in the service position, being delimited in the direction of the grinding chamber 3 by densification walls 17 and 18 extending, respectively, up to the shredding and densification bar 14 upper, in position for closing the cover, and up to a reversible anvil 19 extending along the cover 9 on the side opposite its hinge pin 11 (FIG. 1). The upper screening walls 5, movable by means of the jacks 16, serve, in their retracted position releasing the corresponding opening in the cover, ejection valves for objects which cannot be shredded. The reversible anvils 19 are anvils which have four effective edges and that it therefore suffices simply to turn a quarter of a turn, after wear of an edge, to have a new effective edge. These anvils are advantageously fixed, in a known manner, by bolting or by a through axis bearing on the side walls.

Au-dessus de la paroi criblante 5 et derrière la paroi de densification 17, chaque couvercle 9 présen­te une chambre 20 d'évacuation des produits broyés den­ses communiquant avec la chambre 21, s'étendant dans le châssis 10 sous la paroi criblante 4.Above the screening wall 5 and behind the densification wall 17, each cover 9 has a chamber 20 for discharging the dense ground products communicating with the chamber 21, extending in the frame 10 under the screening wall 4.

Le dispositif d'alimentation à tambours écra­seurs 7 et 8 se présente avantageusement, comme le mon­tre la figure 1, sous forme d'une paire de bras de sup­port 22 montés pivotants sur les côtés de l'un des cou­vercles 9 contre l'action de vérins hydrauliques 23 (figure 2) et portant au moins un tambour écraseur 7, un ou plusieurs tambours écraseurs 8 étant montés de maniè­re mobile par rapport au tambour 7 et au bras 22 sur un châssis de support pivotant 24 articulé à l'extrémité libre des bras 22 et actionné au moyen de vérins hydrau­liques 25. Ainsi, il est possible de réaliser un écrase­ment progressif du produit à déchiqueter, avant son en­trée dans l'enceinte de broyage 7, et d'améliorer son avance dans l'entrée 12 d'alimentation centrale. Bien entendu, il est également possible, de n'utiliser, de manière connue, comme le montre la figure 2, qu'un seul tambour écraseur monté au bout des bras pivotants.The feed device with crushing drums 7 and 8 is advantageously, as shown in FIG. 1, in the form of a pair of support arms 22 pivotally mounted on the sides of one of the covers 9 against the action of hydraulic cylinders 23 (FIG. 2) and carrying at least one crushing drum 7, one or more crushing drums 8 being mounted movably relative to the drum 7 and to the arm 22 on a pivoting support frame 24 articulated at the free end of the arms 22 and actuated by means of hydraulic cylinders 25. Thus, it is possible to achieve a progressive crushing of the product to be shredded, before it enters the grinding chamber 7, and to improve its advance in the inlet 12 of central supply. Of course, it is also possible to use, in known manner, as shown in FIG. 2, only one crushing drum mounted at the end of the pivoting arms.

La prévision des tambours écraseurs supplémen­taires 8 permet un réglage en continu de leur position par rapport au tambour 7 et donc de leur position rela­tive par rapport à l'entrée d'alimentation 12 en fonc­tion des besoins.The provision of additional crushing drums 8 allows continuous adjustment of their position relative to the drum 7 and therefore of their relative position relative to the supply inlet 12 as required.

La possibilité d'une rotation dans les deux sens du tambour 2 permet une utilisation des marteaux sur leurs deux faces utiles, sans nécessiter un arrêt prolongé du broyeur et un démontage suivi d'une inver­sion et d'un remontage desdits marteaux, ce qui permet un gain de temps appréciable.The possibility of a rotation in both directions of the drum 2 allows the use of the hammers on their two useful faces, without requiring a prolonged stop of the crusher and a disassembly followed by an inversion and a reassembly of said hammers, which allows significant time savings.

En outre, le tambour 2 peut fonctionner indif­féremment dans les deux sens de rotation, du fait de la symétrie parfaite des grilles d'éjection par rapport à l'axe vertical du broyeur.In addition, the drum 2 can operate indifferently in both directions of rotation, due to the perfect symmetry of the ejection grids with respect to the vertical axis of the mill.

Grâce à l'invention, il est possible de réali­ser un broyeur à marteaux, dans lequel le tambour d'en­traînement des marteaux peut tourner dans les deux sens, permettant ainsi une usure régulière des marteaux sans démontage de ces derniers, donc avec une optimalisation du rendement.Thanks to the invention, it is possible to produce a hammer mill, in which the hammer drive drum can rotate in both directions, thus allowing regular wear of the hammers without dismantling them, therefore with an optimization of the yield.

En outre, l'alimentation de ce broyeur peut également être effectuée de manière optimale, le lamina­ge des objets à broyer pouvant être réglé. Enfin, le broyeur conforme à l'invention étant muni d'une entrée d'alimentation centrale, son encombrement, à capacité de broyage égale, est sensiblement inférieure à celui des broyeurs connus et son rendement est nettement supé­rieur.In addition, the feeding of this mill can also be carried out optimally, the rolling of the objects to be ground can be adjusted. Finally, the mill according to the invention being provided with a central feed inlet, its size, with capacity for equal grinding, is significantly lower than that of known mills and its yield is significantly higher.

Bien entendu, l'invention n'est pas limitée au mode de réalisation décrit et représenté aux dessins an­nexés. Des modifications restent possibles, notamment du point de vue de la constitution des divers éléments ou par substitution d'équivalents techniques, sans sortir pour autant du domaine de protection de l'invention.Of course, the invention is not limited to the embodiment described and shown in the accompanying drawings. Modifications remain possible, in particular from the point of view of the constitution of the various elements or by substitution of technical equivalents, without thereby departing from the scope of protection of the invention.

Claims (7)

1. Broyeur à marteaux pour le déchiquetage d'objets métalliques, essentiellement constitué par des marteaux (1) montés sur un tambour d'entraînement (2) disposé dans une enceinte de broyage (3) pourvue de pa­rois criblantes (4 et 5) en partie inférieure et en par­tie supérieure et par un dispositif d'alimentation (6) à tambours écraseurs (7, 8), caractérisé en ce qu'il pré­sente une alimentation centrale supérieure (12), en ce qu'il est pourvu, en outre, de deux couvercles (9) mon­tés pivotants sur le châssis (10) du broyeur et délimi­tant, du côté opposé à leur axe d'articulation (11), l'entrée d'alimentation centrale (12) du broyeur, en ce que le tambour (2) d'entraînement des marteaux (1) est entraîné dans les deux sens de rotation, et en ce que le dispositif d'alimentation (6) à tambours écraseurs (7, 8) est monté à pivotement sur l'un des couvercles pivo­tants (9) ou sur le châssis inférieur du broyeur, de ma­nière déplaçable dans l'espace délimité entre les cou­vercles (9).1. Hammer mill for shredding metallic objects, essentially consisting of hammers (1) mounted on a drive drum (2) disposed in a grinding chamber (3) provided with screening walls (4 and 5) in lower part and upper part and by a feed device (6) with crushing drums (7, 8), characterized in that it has an upper central feed (12), in that it is provided, in addition , of two covers (9) pivotally mounted on the chassis (10) of the mill and delimiting, on the side opposite their articulation axis (11), the central feed inlet (12) of the mill, in that the hammer drive drum (2) (2) is driven in both directions of rotation, and in that the crushing drum feeder (6) (7, 8) is pivotally mounted on one of the swivel covers (9) or on the lower frame of the grinder, movable in space delimited between the covers (9). 2. Broyeur, suivant la revendication 1, carac­térisé en ce que les couvercles (9) sont avantageusement montés à articulation sur deux côtés opposés du châssis (10) du broyeur et sont pivotables entre les positions d'ouverture et de fermeture au moyen de vérins hydrauli­ques (13) fixés à une extrémité sur le châssis (10) et à leur autre extrémité sur les couvercles (9).2. Crusher according to claim 1, characterized in that the covers (9) are advantageously mounted with articulation on two opposite sides of the chassis (10) of the crusher and are pivotable between the open and closed positions by means of jacks hydraulics (13) fixed at one end to the chassis (10) and at their other end to the covers (9). 3. Broyeur, suivant la revendication 1, carac­térisé en ce que la paroi criblante inférieure (4) est avantageusement sous forme d'une grille s'étendant dans le fond du châssis (10) autour du tambour (2) et est prolongée de part et d'autre, parallèlement à l'axe du tambour (2), par des barreaux (14) de déchiquetage et de densification, de section carrée, ronde ou autre.3. Crusher according to claim 1, characterized in that the lower screening wall (4) is advantageously in the form of a grid extending in the bottom of the frame (10) around the drum (2) and is extended by hand and on the other, parallel to the axis of the drum (2), by shredding and densification bars (14), of square, round or other section. 4. Broyeur, suivant la revendication 3, carac­ térisé en ce que les barreaux 14 sont remplacés par des grilles.4. Crusher according to claim 3, charac terized in that the bars 14 are replaced by grids. 5. Broyeur, suivant l'une quelconque des reven­dications 1 et 2, caractérisé en ce que les couvercles pivotants (9) présentent chacun, intérieurement, une pa­roi criblante supérieure (5) interchangeable et mobile au-dessus de l'enceinte de broyage (3), en position de fermeture des couvercles (9), au moyen d'au moins un vé­rin hydraulique (16), la section, fermée par cette paroi criblante (5) en position de service, étant délimitée en direction de l'enceinte de broyage (3) par des parois de densification (17 et 18) s'étendant, respectivement, jusqu'au barreau de déchiquetage et de densification (14) supérieur, en position de fermeture du couvercle, et jusqu'à une enclume réversible (19) s'étendant le long du couvercle (9) du côté opposé à son axe d'articu­lation (11).5. Crusher according to any one of claims 1 and 2, characterized in that the pivoting covers (9) each have, internally, an upper screen wall (5) interchangeable and movable above the grinding chamber ( 3), in the closed position of the covers (9), by means of at least one hydraulic cylinder (16), the section, closed by this screening wall (5) in the service position, being delimited in the direction of the enclosure grinding (3) by densification walls (17 and 18) extending, respectively, to the upper shredding and densification bar (14), in the closed position of the cover, and to a reversible anvil ( 19) extending along the cover (9) on the side opposite its axis of articulation (11). 6. Broyeur, suivant l'une quelconque des reven­dications 1, 2 et 5, caractérisé en ce que, au-dessus de la paroi criblante (5) et derrière la paroi de densifi­cation (17), chaque couvercle (9) présente une chambre (20) d'évacuation des produits broyés denses communi­quant avec la chambre (21), s'étendant dans le châssis (10) sous la paroi criblante (4).6. Crusher according to any one of claims 1, 2 and 5, characterized in that, above the screening wall (5) and behind the densification wall (17), each cover (9) has a chamber (20) for evacuating the dense crushed products communicating with the chamber (21), extending in the frame (10) under the screening wall (4). 7. Broyeur, suivant la revendication 1, carac­térisé en ce que le dispositif d'alimentation à tambours écraseurs (7 et 8) se présente avantageusement sous for­me d'une paire de bras de support (22) montés pivotants sur les côtés de l'un des couvercles (9) ou sur le châs­sis inférieur (2) du broyeur contre l'action de vérins hydrauliques (23) et portant au moins un tambour écra­seur (7), un ou plusieurs tambours écraseurs (8) étant montés de manière mobile par rapport au tambour (7) et au bras (22) sur un châssis de support pivotant (24) ar­ticulé à l'extrémité libre des bras (22) et actionné au moyen de vérins hydrauliques (25).7. Crusher according to claim 1, characterized in that the feed device for crushing drums (7 and 8) is advantageously in the form of a pair of support arms (22) pivotally mounted on the sides of the one of the covers (9) or on the lower frame (2) of the mill against the action of hydraulic cylinders (23) and carrying at least one crushing drum (7), one or more crushing drums (8) being mounted in a movable manner relative to the drum (7) and the arm (22) on a pivoting support frame (24) articulated at the free end of the arms (22) and actuated by means of hydraulic cylinders (25).
EP89403114A 1988-11-10 1989-11-10 Hammer mill with central feeding for shredding metal objects Withdrawn EP0370861A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8814974 1988-11-10
FR8814974A FR2638662B1 (en) 1988-11-10 1988-11-10 HAMMER CRUSHER, CENTRAL FEED, FOR SHREDDING METAL OBJECTS

Publications (1)

Publication Number Publication Date
EP0370861A1 true EP0370861A1 (en) 1990-05-30

Family

ID=9371952

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89403114A Withdrawn EP0370861A1 (en) 1988-11-10 1989-11-10 Hammer mill with central feeding for shredding metal objects

Country Status (2)

Country Link
EP (1) EP0370861A1 (en)
FR (1) FR2638662B1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1006965A3 (en) * 1993-04-07 1995-02-07 Lefort Presses & Cisailles Improved shredder
ITUD20090211A1 (en) * 2009-11-19 2011-05-20 Raf Ricambi Attrezzature Per La F Rantumazione S CRUSHER MILL
WO2012140388A1 (en) * 2011-04-15 2012-10-18 Arnaud Becker Combined equipment for treating products by grinding, shredding, or compaction

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113289724A (en) * 2021-04-13 2021-08-24 长沙量纹科技有限公司 Hammer crusher with self-supplied oil

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4009836A (en) * 1975-06-30 1977-03-01 American Pulverizer Company Material reducing machine
GB2116088A (en) * 1982-03-03 1983-09-21 Newell Mfg Co Hammer mill having capped disc rotor
EP0103778A2 (en) * 1982-09-16 1984-03-28 Lindemann Maschinenfabrik GmbH Hammer mill

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4009836A (en) * 1975-06-30 1977-03-01 American Pulverizer Company Material reducing machine
GB2116088A (en) * 1982-03-03 1983-09-21 Newell Mfg Co Hammer mill having capped disc rotor
EP0103778A2 (en) * 1982-09-16 1984-03-28 Lindemann Maschinenfabrik GmbH Hammer mill

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1006965A3 (en) * 1993-04-07 1995-02-07 Lefort Presses & Cisailles Improved shredder
ITUD20090211A1 (en) * 2009-11-19 2011-05-20 Raf Ricambi Attrezzature Per La F Rantumazione S CRUSHER MILL
EP2327478A1 (en) * 2009-11-19 2011-06-01 Raf - Ricambi Attrezzature Per La Frantumazione - Spa Crusher mill
US8505843B2 (en) 2009-11-19 2013-08-13 RAF—Ricambi Attrezzature per la Frantumazione-SpA Crushing mill
WO2012140388A1 (en) * 2011-04-15 2012-10-18 Arnaud Becker Combined equipment for treating products by grinding, shredding, or compaction
FR2974017A1 (en) * 2011-04-15 2012-10-19 Arnaud Becker COMBINED PRODUCT PROCESSING INSTALLATION BY MILLING, CUTTING OR COMPACTING

Also Published As

Publication number Publication date
FR2638662A1 (en) 1990-05-11
FR2638662B1 (en) 1991-02-01

Similar Documents

Publication Publication Date Title
EP2560763B1 (en) Pre-crusher or pre-shredder with driving device
WO2012140388A1 (en) Combined equipment for treating products by grinding, shredding, or compaction
WO2014083257A1 (en) Impact screen for an impact crusher, impact crusher provided with said impact screen, and crushing facility
WO1990000933A1 (en) Hammer-type crusher for shredding metal objects
EP0370861A1 (en) Hammer mill with central feeding for shredding metal objects
FR2660213A1 (en) Centrally fed hammer mill for shredding metallic objects
EP2470303B1 (en) Device for shearing or shredding and grinding material
WO2012020199A1 (en) Hammer crusher or hammer mill, shredder, or the like provided with movable feeding device
WO1992010297A1 (en) Compact hammer mill for shredding metal objects and the like
CA2746697C (en) Small mill having a rotor inclined relative to the axis of the feed chute
WO2010103241A1 (en) Device for pre-compacting and pre-shearing material to be ground
WO2011018585A1 (en) Device for shearing materials to be ground, and combined equipment including such device
FR2677559A1 (en) Small-size hammer mill for shredding metal objects or the like, with automatic and continuous bottom feed
FR2464097A1 (en) Domestic and garden refuse shredder - has rotating drum with sharp edge inside rings longitudinally connected by radially distributed crushing bars
FR2634399A1 (en) Hammer mill for shredding metal objects
FR2580193A1 (en) Rebound crushers
EP2701847B1 (en) Pre-grinder or a pre-shredder
EP1055459A1 (en) Device for force feeding of plastic parts or waste elements of different sizes into all kinds of crushing machines
WO2011018584A2 (en) Pre-grinder or pre-shredder
CA2429244A1 (en) Reduction grinder for organic material
EP2070595B1 (en) Device for dimensional reduction by grinding, crushing, shredding or nibbling of manufactured products or materials of considerable size
EP0937503A1 (en) Discharging device for a wet grinding mill
EP2603323A1 (en) Hammer mill or hammer crusher or the like provided with a device for extracting the rotor
FR2522536A1 (en) Impact crusher e.g. for car bodies - has rotor built up from discs with free-swinging hammer elements in gaps between discs and wear resistant cover on disc edges
IES990920A2 (en) A glass crusher

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE ES GB GR IT LI LU NL SE

17P Request for examination filed

Effective date: 19901127

17Q First examination report despatched

Effective date: 19911021

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19921013