WO1990000933A1 - Hammer-type crusher for shredding metal objects - Google Patents

Hammer-type crusher for shredding metal objects Download PDF

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Publication number
WO1990000933A1
WO1990000933A1 PCT/FR1989/000378 FR8900378W WO9000933A1 WO 1990000933 A1 WO1990000933 A1 WO 1990000933A1 FR 8900378 W FR8900378 W FR 8900378W WO 9000933 A1 WO9000933 A1 WO 9000933A1
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WO
WIPO (PCT)
Prior art keywords
wall
drum
crusher according
crusher
hammers
Prior art date
Application number
PCT/FR1989/000378
Other languages
French (fr)
Inventor
Arnaud Becker
Original Assignee
Arnaud Becker
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
Priority claimed from FR8810083A external-priority patent/FR2634399B1/en
Application filed by Arnaud Becker filed Critical Arnaud Becker
Priority to KR1019890701817A priority Critical patent/KR900700544A/en
Publication of WO1990000933A1 publication Critical patent/WO1990000933A1/en

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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
    • 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
    • B02C13/28—Shape or construction of beater elements
    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C19/00—Other disintegrating devices or methods
    • B02C19/0056—Other disintegrating devices or methods specially adapted for specific materials not otherwise provided for
    • B02C19/0062—Other disintegrating devices or methods specially adapted for specific materials not otherwise provided for specially adapted for shredding scrap metal, e.g. automobile bodies
    • 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
    • B02C2013/28618—Feeding means
    • B02C2013/28672—Feed chute arrangements

Definitions

  • the present invention relates to the field of recovery of metallic products from manufactured objects, in particular by shredding, and for fear is a hammer mill for shredding metallic objects.
  • 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 crusher.
  • This tilting of the chassis allows an 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 transferring said object towards the entry of said grinder.
  • 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.
  • FR-A-2 522 536 also discloses an arrangement of screening walls in the lower part and in the upper part of a crusher, respectively for elimination of the calibrated waste by gravity and for elimination by projection, the projected waste through the upper screening wall being directed through a corresponding channel to a recovery device.
  • Known hammer mills generally have reversible hammers, that is to say which can be turned 180 ° at their point of attachment to the drive drum after wear.
  • a hammer-carrying axes of the hammer receiving drum with a view to reversing their mounting on said drum as well as certain protections of the rotor, which results in downtime and significant labor and therefore an increase in the cost of production.
  • This embodiment allows good protection of the discs constituting the drum, at their circumferential part, but, however, has the disadvantage of offering no protection at the place of passage of the hammers where crushed particles can penetrate under the envelope and possibly participate in wear of said discs, in particular at the level of the hammer articulation.
  • the present invention aims to overcome these drawbacks.
  • a hammer mill for shredding metallic 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, this enclosure being connected to a feed device provided with crushing drums and a ramp for introduction into the crusher, characterized in that the hammer drive drum is driven in both directions of rotation, in that the upper screening wall is interchangeable and movable above the grinding chamber, in that the walls of the grinding chamber are provided with interchangeable shields and in that the crushing drums of the feed device are infinitely adjustable in their mutual position, relative to the introduction ramp.
  • Figure 1 is a side elevational view of the mill according to the invention provided with the feed device
  • Figure 2 is a side elevational view in section, on a larger scale of the hammer mill alone;
  • Figure 3 is a side elevational view of a disc of the hammer drive drum, provided with protections;
  • FIG. 4 is a partial view in longitudinal section of the hammer drive drum
  • Figure 5 is an elevational view of an end disc of the hammer drive drum, with its protections.
  • the hammer mill for shredding metal objects which essentially consists of hammers 1 mounted on a drive drum 2 arranged in a grinding chamber 3 for a view of 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 and a ramp 9 for introduction in the mill, is characterized in that the hammer drive drum 2 1 is driven in both directions of rotation.
  • the upper screening wall 5 of the enclosure 3 is interchangeable and movable above said grinding enclosure 3 and the walls of the grinding enclosure 3 are provided with interchangeable shields 10.
  • the crushing drums 7 and 8 of the feed device 6 are infinitely adjustable in their mutual position, relative to the insertion ramp 9.
  • the upper screening wall 5 is advantageously subdivided into two parts 5 'and 5 "separated from each other by an opening 5"', which, in the normal position of use of the wall 5, is located above a central densification element 11 comprising, at its part facing the drive drum 2, on each longitudinal edge, an anvil 12, a jack 13 disposed externally to the enclosure 3 acting on one end of the wall 5 to move it in order to release openings on either side of the central densification element 11.
  • the wall 5 can easily be extracted. full of the crusher and replaced by another wall having a finer or larger screening size, as required.
  • the crusher is provided, above the screening wall 5, with a closing flap 14 operable by means of a jack or the like, articulated to the side wall of said crusher near the wall 5, above the latter and parallel to the central element 11 and having an opening of section corresponding to that of the part 5 ′ of the wall 5 (FIG. 2).
  • the interchangeable shields 10 delimiting the walls of the grinding chamber parallel to the axis of the drum 2 are advantageously in the form of plates provided with fixing lugs 16 passing through the walls of the crusher and provided with holes 17 for passage of an axis.
  • This embodiment allows mounting and easy removal of the shields when they change, after wear, loosening of the screws 19 unlocking the axis 18, which can then be extracted from the holes 17 of the fixing lugs 16, so that the shields can be removed.
  • reversible anvils 22 and 23 are provided intended to cooperate with the hammers 1, the upper anvil 23 having a degraded part in the direction of the upper screening wall 5 (FIG. 2 ).
  • the grinding chamber 3 is provided, at the end of the screening wall 4 opposite the inlet of the crusher, with an additional anvil 24 projecting from the densification wall preceding it in the direction of clockwise rotation.
  • the lower screening wall 4 can be equipped with two different grids, namely, either a grid 4 ′ with asymmetrical arc-shaped relief, extending in the opposite direction to the direction of clockwise rotation, that is to say a 4 "grid with symmetrical draft and converging towards the outside of the enclosure 3 for each bar of the grid.
  • the grid 4 ' is intended to allow good clearance of the product to grind when the rotor turns in one direction and allow densification of the product by crushing against the wall of the body, otherwise the 4 "grid is intended for identical calibration and densification of the product to be ground, in both directions of rotation of the drum 2.
  • the supply device 6, which is constituted by a frame 25 movable by pivoting relative to the insertion ramp 9 by means a cylinder 26, comprises at least two crushing drums 7 and 8, one of which, 7, is housed in a bearing at the free end of the chassis 25, above the ramp 9, and the one or more others, 8, is mounted on a sub-frame 27 pivotally hinged .on the free end of the frame 25 and movable by means of a jack 28.
  • the hammer drive drum 2 1 is advantageously provided, at each disc 29 constituting it, with shell elements 30 in the form of circular segments provided with lateral cheeks 31 surrounding said discs 29 and fixed on the latter by means of pins 32 for mounting the hammers 1, the cheeks 31 being applied to the corresponding faces of the discs 29 by means of sockets 33 clamped between said cheeks 31 during the assembly of the discs 29 to form the drum 2.
  • each individual disc 29 forming the drum 2 is fully protected over its entire periphery by interchangeable protective shells after wear.
  • the drum 2 can be supplemented by densification tools 34 (fi ⁇ ures 3 and 4) reversible and interchan gageable and mounted in the empty spaces between the discs 29 on the axes 32 for mounting the hammers 1.
  • densification tools 34 reversible and interchan gageable and mounted in the empty spaces between the discs 29 on the axes 32 for mounting the hammers 1.
  • Such a mounting of tools 34 is possible because the hammers 1 are uniformly distributed on the drum 2 leaving gaps between the discs 29.
  • These densification tools 34 make it possible to accelerate the densification of the particles of objects in the grinding chamber 3 and therefore a better yield for the whole of the
  • the elements 30 covering the end discs 29 of the drum 2 are advantageously provided, in addition to the densification tools 35, with other densification tools. 36 with deflecting edges converging towards the opposite end of the drum 2. This embodiment makes it possible to automatically bring the particles of objects towards the middle of the grinding chamber 2 and thus to avoid any harmful accumulation near the side walls.
  • 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 grinder according to the invention has a drum whose discs are fully protected by easily interchangeable wear elements.

Abstract

The present invention relates to a hammer-type crusher for shredding metal objects, essentially comprised of hammers (1) mounted on a driving drum (2) which is arranged within a crushing housing (3) provided with lower and upper screening walls (4, 5), said housing (3) being connected to a supply device (6) having crusher drums (7, 8) and an introduction ramp (9). The crusher is characterized in that the drum (2) which drives the hammers (8) is driven in both rotation directions, in that the upper screening wall (5) is interchangeable and movable above the crushing housing (3), in that the walls of the crushing housing (3) are provided with interchangeable armour plates (10) and in that the crusher drums (7, 8) of the supply device (6) are continuously adjustable in their mutual position in relation to the introduction ramp (9).

Description

Broyeur à marteaux pour le dechiquetage d'objets  Hammer mill for shredding objects
métalliques  metallic
La présente invention concerne le domaine de la récupération de produits métalliques à partir d'objets manufacturés, en particulier par dechiquetage, et a peur objet un broyeur à marteaux pour le dechiquetage d'objets métalliques. The present invention relates to the field of recovery of metallic products from manufactured objects, in particular by shredding, and for fear is a hammer mill for shredding metallic objects.
La récupération de produits métalliques à partir d'objets hors d'usage, notamment de véhicules automobiles, au moyen de concasseurs ou de broyeurs, s'effectue selon des procédés largement répandus.  The recovery of metallic products from end-of-life objects, in particular from motor vehicles, by means of crushers or grinders, is carried out according to widely used methods.
Ces procédés connus consistent généralement à introduire, au moyen d'un dispositif d'alimentation à tambours ecraseurs et à rampe d'introduction, un broyeur à marteaux qui arrache et déchiqueté 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.  These known methods generally consist in introducing, by means of a feed device with crushing drums and an introduction ramp, a hammer mill which tears off and shredded the material entering: in said mill, by interaction with one or more anvils , and which ejects and / or evacuates through screening walls the metallic waste obtained, having a predetermined size, this waste being then treated with a view to eliminating materials unfit for reuse and sorting the remaining materials according of their metallurgical characteristics.
Les dispositifs de broyage existants actuellement présentent généralement, en particulier selon  Currently existing grinding devices generally have, in particular according to
FR-A-2 522 536, un dispositif d'alimentation dont les tambours ecraseurs sont disposés à poste fixe sur un châssis pouvant être basculé par rapport à la rampe d'introduction dans le broyeur. 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 crusher.
Ce basculement du châssis permet un réglage de l'écrasement, de l'objet métallique à déchiqueter ultérieurement, au moyen des tambours ecraseurs qul realisent simultanément une action de transcert dudit objet en direction de l'entrée dudit broyeur. Cependant, dans ce dispositif connu, l'écartement individuels 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. This tilting of the chassis allows an 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 transferring said object towards the entry of said grinder. 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, on connaît également par FR-A-2 522 536 une disposition de parois criblantes en partie inférieure et en partie supérieure d'un broyeur, respectivement pour une élimination des déchets calibrés par gravite et pour une élimination par projection, les déchets projetés à travers la paroi criblante supérieure étant dirigés par un canal correspondant vers un dispositif de récupération.  In addition, FR-A-2 522 536 also discloses an arrangement of screening walls in the lower part and in the upper part of a crusher, respectively for elimination of the calibrated waste by gravity and for elimination by projection, the projected waste through the upper screening wall being directed through a corresponding channel to a recovery device.
Les broyeurs à marteaux connus, présentent généralement des marteaux réversibles, c'est-à-dire pouvant être tournés de 180º sur leur point de fixation sur le tambour d'entraînement après usure. Cependant, un tel mode de réalisation nécessite un démontage des axes porte-marteaux du tambour de réception des marteaux en vue d'une inversion de leur montage sur ledit tambour ainsi que de certaines protections du rotor, ce qui entraîne un temps d'immobilisation et de main d'oeuvre important et donc un renchérissement du coût de production.  Known hammer mills generally have reversible hammers, that is to say which can be turned 180 ° at their point of attachment to the drive drum after wear. However, such an embodiment requires disassembly of the hammer-carrying axes of the hammer receiving drum with a view to reversing their mounting on said drum as well as certain protections of the rotor, which results in downtime and significant labor and therefore an increase in the cost of production.
Enfin, afin de protéger le tambour de support des marteaux, il a été proposé un montage de segments métalliques autour desdits marteaux, sur les axes d'articulation de ces derniers, ces segments recouvrant entièrement les disques formant ledit tambour (FR-A-2 304 404), seules des ouvertures de passage et d'escamotage des marteaux restant disponibles entre lesdites enveloppes au niveau desdits marteaux.  Finally, in order to protect the support drum from the hammers, it has been proposed to mount metal segments around said hammers, on the articulation axes of the latter, these segments entirely covering the discs forming said drum (FR-A-2 304 404), only openings for the passage and retraction of the hammers remaining available between said envelopes at the level of said hammers.
Ce mode de réalisation permet une bonne protection des disques constituant le tambour, à leur partie circonférentielle, mais, présente, toutefois l'inconvénient de n'offrir aucune protection à l'endroit de passage des marteaux où des particules broyées peuvent pénétrer sous l'enveloppe et éventuellement participer à une usure desdits disques, notamment au niveau de l'articulation des marteaux. This embodiment allows good protection of the discs constituting the drum, at their circumferential part, but, however, has the disadvantage of offering no protection at the place of passage of the hammers where crushed particles can penetrate under the envelope and possibly participate in wear of said discs, in particular at the level of the hammer articulation.
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 dechiquetage 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, cette enceinte étant reliée à un dispositif d'alimentation muni de tambours ecraseurs et d'une rampe d'introduction dans le broyeur, caractérisé en ce que le tambour d'entraînement des marteaux est entraîné dans les deux sens de rotation, en ce que la paroi criblante supérieure est interchangeable et mobile au-dessus de l'enceinte de broyage, en ce que les parois de l'enceinte de broyage sont munies de blindages interchangeables et en ce que les tambours ecraseurs du dispositif d'alimentation sont réglables en continu dans leur position mutuelle, relativement à la rampe d'introduction.  It has, in effect, a hammer mill for shredding metallic 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, this enclosure being connected to a feed device provided with crushing drums and a ramp for introduction into the crusher, characterized in that the hammer drive drum is driven in both directions of rotation, in that the upper screening wall is interchangeable and movable above the grinding chamber, in that the walls of the grinding chamber are provided with interchangeable shields and in that the crushing drums of the feed device are infinitely adjustable in their mutual position, relative to the introduction ramp.
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  The invention will be better understood thanks to the description below, which relates to a preferred embodiment, given by way of nonlimiting example, and explained with reference to the schematic drawings
annexés, dans lesquels : annexed, in which:
la figure 1 est une vue en élévation latérale du broyeur conforme à l'invention muni du dispositif d'alimentation ; Figure 1 is a side elevational view of the mill according to the invention provided with the feed device;
la figure 2 est une vue en élévation latérale et en coupe, à plus grande échelle du broyeur à marteaux seul ; la figure 3 est une vue en élévation latérale d'un disque du tambour d'entraînement des marteaux, muni de protections ; Figure 2 is a side elevational view in section, on a larger scale of the hammer mill alone; Figure 3 is a side elevational view of a disc of the hammer drive drum, provided with protections;
la figure 4 est une vue partielle en coupe longitudinale du tambour d'entraînement des marteaux, et FIG. 4 is a partial view in longitudinal section of the hammer drive drum, and
la figure 5 est une vue en élévation d'un disque d'extrémité du tambour d'entraînement des marteaux, avec ses protections. Figure 5 is an elevational view of an end disc of the hammer drive drum, with its protections.
Conformément à l'invention, et comme le montrent plus particulièrement les figures 1 et 2 des dessins annexés, le broyeur à marteaux pour le dechiquetage 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 pour vue 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 ecraseurs 7, 8 et d'une rampe 9 d'introduction dans le broyeur, est caractérisé en ce que le tambour 2 d'entraînement des marteaux 1 est entraîné dans les deux sens de rotation. La paroi criblante supérieure 5 de l'enceinte 3 est interchangeable et mobile au-dessus de ladite enceinte de broyage 3 et les parois de l'enceinte de broyage 3 sont munies de blindages interchangeables 10. En outre, les tambours ecraseurs 7 et 8 du dispositif d'alimentation 6 sont réglables en continu dans leur position mutuelle, relativement à la rampe d'introduction 9.  According to the invention, and as shown more particularly in Figures 1 and 2 of the accompanying drawings, the hammer mill for shredding metal objects, which essentially consists of hammers 1 mounted on a drive drum 2 arranged in a grinding chamber 3 for a view of 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 and a ramp 9 for introduction in the mill, is characterized in that the hammer drive drum 2 1 is driven in both directions of rotation. The upper screening wall 5 of the enclosure 3 is interchangeable and movable above said grinding enclosure 3 and the walls of the grinding enclosure 3 are provided with interchangeable shields 10. In addition, the crushing drums 7 and 8 of the feed device 6 are infinitely adjustable in their mutual position, relative to the insertion ramp 9.
La paroi criblante supérieure 5 est avantageusement subdivisée en deux parties 5' et 5" séparées entre elles par une ouverture 5"', qui, en position normale d'utilisation de la paroi 5 est située au-dessus d'un élément central de densification 11 comportant, à sa partie tournée vers le tambour d'entraînement 2, sur chaque arête longitudinale, une enclume 12, un vérin 13 disposé extérieurement à l'enceinte 3 agissant sur une extrémité de la paroi 5 pour la déplacer afin de libérer des ouvertures de part et d'autre de l'élément central de densification 11.  The upper screening wall 5 is advantageously subdivided into two parts 5 'and 5 "separated from each other by an opening 5"', which, in the normal position of use of the wall 5, is located above a central densification element 11 comprising, at its part facing the drive drum 2, on each longitudinal edge, an anvil 12, a jack 13 disposed externally to the enclosure 3 acting on one end of the wall 5 to move it in order to release openings on either side of the central densification element 11.
En effet, par un déplacement de la paroi 5, l'ouverture 5"' est déplacée d'un côté au-dessus de l'enceinte 3 et la partie 5" est déplacée au-dessus de l'élément central 11, libérant totalement le passage audessus de l'enceinte 3 afin de permettre l'éjection d'objets ne pouvant être broyés.  Indeed, by a displacement of the wall 5, the opening 5 "'is moved on one side above the enclosure 3 and the part 5" is moved above the central element 11, completely freeing the passage above the enclosure 3 in order to allow the ejection of objects which cannot be shredded.
La paroi 5 peut facilement être extraite corn plètement du broyeur et remplacée par une autre paroi présentant un calibre de criblage plus fin ou plus gros, en fonction des besoins. The wall 5 can easily be extracted. full of the crusher and replaced by another wall having a finer or larger screening size, 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.
Dans le cas d'une rotation du tambour 2 dans le sens des aiguilles d'une montre, les particules de matière, de calibre correspondant à celui du crible de la paroi 5, sont projetées vers le haut à travers la partie 5' de la paroi criblante 5, tandis que dans le cas d'une rotation inverse, ces particules sont projetées à travers la partie 5" de la paroi 5.  In the case of a rotation of the drum 2 in a clockwise direction, the particles of material, of caliber corresponding to that of the screen of the wall 5, are projected upward through the part 5 'of the screening wall 5, while in the case of a reverse rotation, these particles are projected through the 5 "part of the wall 5.
Selon une caractéristique de l'invention, le broyeur est pourvu, au-dessus de la paroi criblante 5, d'un volet de fermeture 14 manoeuvrable au moyen d'un vérin ou autre, articulé à la paroi latérale dudit broyeur près de la paroi 5, au-dessus de cette dernière et parallèlement à l'élément central 11 et présentant une ouverture de section correspondante à celle de la partie 5' de la paroi 5 (figure 2).  According to a characteristic of the invention, the crusher is provided, above the screening wall 5, with a closing flap 14 operable by means of a jack or the like, articulated to the side wall of said crusher near the wall 5, above the latter and parallel to the central element 11 and having an opening of section corresponding to that of the part 5 ′ of the wall 5 (FIG. 2).
Ainsi, lors de la rotation du tambour 2 dans le sens des aiguilles d'une montre, les particules, éjectées à travers la partie 5' dans l'espace de déflexion 15 au-dessus de la paroi 5, sont empêchées de retomber à travers la partie 5" dans l'espace de broyage 3, la partie 5' étant alors fermée par le volet 14 rabattu sur la paroi 5, l'ouverture 15 du volet correspondant à la partie 5' .  Thus, when the drum 2 is rotated clockwise, the particles, ejected through the part 5 ′ into the deflection space 15 above the wall 5, are prevented from falling through the part 5 "in the grinding space 3, the part 5 'then being closed by the flap 14 folded over the wall 5, the opening 15 of the flap corresponding to the part 5'.
Les blindages interchangeables 10 délimitant les parois de l'enceinte de broyage parallèlement à l'axe du tambour 2 se présentent avantageusement sous forme de plaques munies de pattes de fixation 16 traversant les parois du broyeur et pourvus de trous 17 de passage d'un axe de fixation 18 sur lequel est fixé un manchon muni de deux pattes latérales traversées par deux vis 19 de serrage bloquées en position, chacune au moyen d'un contre-écrou 20, et s'appuyant sur la face externe des parois du broyeur 16. Ce mode de réalisation permet un montage et un démontage faciles des blindages lors de leur changement, après usure, le desserrage des vis 19 débloquant l'axe 18, qui peut alors être extrait des trous 17 des pattes de fixation 16, de sorte que les blindages peuvent être retirés. Le montage de ces blindages 10 s'effectue de manière inverse, le serrage des vis 19 sur la face externe des parois permettant un verrouillage de l'axe 18 et donc un plaquage desdits blindages contre les parois internes du broyeur, les vis 19 étant alors bloquées en position, de manière connue, au moyen des contre-écrous 20. The interchangeable shields 10 delimiting the walls of the grinding chamber parallel to the axis of the drum 2 are advantageously in the form of plates provided with fixing lugs 16 passing through the walls of the crusher and provided with holes 17 for passage of an axis. fixing 18 on which is fixed a sleeve provided with two lateral tabs crossed by two clamping screws 19 locked in position, each by means of a lock nut 20, and bearing on the external face of the walls of the crusher 16. This embodiment allows mounting and easy removal of the shields when they change, after wear, loosening of the screws 19 unlocking the axis 18, which can then be extracted from the holes 17 of the fixing lugs 16, so that the shields can be removed. The mounting of these shields 10 is carried out in reverse, the tightening of the screws 19 on the external face of the walls allowing a locking of the axis 18 and therefore a plating of said shields against the internal walls of the mill, the screws 19 then being locked in position, in known manner, by means of the locknuts 20.
De part et d'autre de l'entrée 21 du broyeur, sont prévues des enclumes réversibles 22 et 23 destinées à coopérer avec les marteaux 1, l'enclume supérieure 23 présentant une partie dégradée en direction de la paroi criblante supérieure 5 (figure 2).  On either side of the inlet 21 of the crusher, reversible anvils 22 and 23 are provided intended to cooperate with the hammers 1, the upper anvil 23 having a degraded part in the direction of the upper screening wall 5 (FIG. 2 ).
En outre, l'enceinte de broyage 3 est munie, à l'extrémité de la paroi criblante 4 opposée à l'entrée du broyeur, d'une enclume complémentaire 24 en saillie par rapport à la paroi de densification la précédant dans le sens de rotation des aiguilles d'une montre.  In addition, the grinding chamber 3 is provided, at the end of the screening wall 4 opposite the inlet of the crusher, with an additional anvil 24 projecting from the densification wall preceding it in the direction of clockwise rotation.
Selon une autre caractéristique de l'invention, la paroi criblante inférieure 4 peut être équipée de deux grilles différentes, à savoir, soit d'une grille 4' à dépouille asymétrique en forme d'arc, s'étendant en direction contraire au sens de rotation des aiguilles d'une montre, soit d'une grille 4" avec dépouille symétrique et convergente vers l'extérieur de l'enceinte 3 pour chaque barreau de la grille. La grille 4' est destinée à permettre un bon dégagement du produit à broyer lorsque le rotor tourne dans un sens et de permettre une densification du produit par écrasement contre la paroi de la dépouille, dans le cas contraire. La grille 4" est destinée à un calibrage et une densification identiques du produit à broyer, dans les deux sens de rotation du tambour 2. According to another characteristic of the invention, the lower screening wall 4 can be equipped with two different grids, namely, either a grid 4 ′ with asymmetrical arc-shaped relief, extending in the opposite direction to the direction of clockwise rotation, that is to say a 4 "grid with symmetrical draft and converging towards the outside of the enclosure 3 for each bar of the grid. The grid 4 'is intended to allow good clearance of the product to grind when the rotor turns in one direction and allow densification of the product by crushing against the wall of the body, otherwise the 4 "grid is intended for identical calibration and densification of the product to be ground, in both directions of rotation of the drum 2.
Conformément à une autre caractéristique de l'invention, et comme le montre plus particulièrement la figure 1 des dessins annexés, le dispositif d'alimentation 6, qui est constitué par un châssis 25 déplaçable par pivotement relativement à la rampe d'introduction 9 au moyen d'un vérin 26, comporte au moins deux tambours ecraseurs 7 et 8, dont l'un, 7, est logé dans un palier de l'extrémité libre du châssis 25, au-dessus de la rampe 9, et dont le ou les autres, 8, est monté sur un châssis annexe 27 articulé à pivotement .sur l'extrémité libre du châssis 25 et déplaçable au moyen d'un vérin 28. Ainsi, il est possible de réaliser un réglage en continu de la position mutuelle des tambours ecraseurs 7 et 8 relativement à la rampe d'introduction 9, et d'influer sur le laminage préalable des produits sur la rampe 9 avant leur dechiquetage à l'entrée du broyeur et de permettre une alimentation en continu, sans actionner le châssis 25.  According to another characteristic of the invention, and as shown more particularly in Figure 1 of the accompanying drawings, the supply device 6, which is constituted by a frame 25 movable by pivoting relative to the insertion ramp 9 by means a cylinder 26, comprises at least two crushing drums 7 and 8, one of which, 7, is housed in a bearing at the free end of the chassis 25, above the ramp 9, and the one or more others, 8, is mounted on a sub-frame 27 pivotally hinged .on the free end of the frame 25 and movable by means of a jack 28. Thus, it is possible to continuously adjust the mutual position of the drums crushers 7 and 8 relative to the introduction ramp 9, and to influence the prior rolling of the products on the ramp 9 before their shredding at the inlet of the mill and allow continuous feeding, without actuating the frame 25.
Selon une autre caractéristique de l'invention, et comme le montrent les figures 3 à 5, le tambour 2 d'entraînement des marteaux 1 est avantageusement muni, au niveau de chaque disque 29 le constituant, d'éléments de coquille 30 en forme de segments circulaires pourvus de joues latérales 31 entourant lesdits disques 29 et fixés sur ces derniers au moyen des axes 32 de montage des marteaux 1, les joues 31 étant appliquées sur les faces correspondantes des disques 29 par l'intermédiaire de douilles 33 serrées entre lesdites joues 31 lors de l'assemblage des disques 29 pour former le tambour 2.  According to another characteristic of the invention, and as shown in FIGS. 3 to 5, the hammer drive drum 2 1 is advantageously provided, at each disc 29 constituting it, with shell elements 30 in the form of circular segments provided with lateral cheeks 31 surrounding said discs 29 and fixed on the latter by means of pins 32 for mounting the hammers 1, the cheeks 31 being applied to the corresponding faces of the discs 29 by means of sockets 33 clamped between said cheeks 31 during the assembly of the discs 29 to form the drum 2.
Grâce à ce mode de réalisation, chaque disque individuel 29 formant le tambour 2 est entièrement protégé sur toute sa périphérie par des coquilles de protection interchangeables après usure.  Thanks to this embodiment, each individual disc 29 forming the drum 2 is fully protected over its entire periphery by interchangeable protective shells after wear.
Selon une autre caractéristique de l'invention, le tambour 2 peut être complété par des outils de densification 34 (fiαures 3 et 4) réversibles et interchan geables et montés dans les espaces vides entre les disques 29 sur les axes 32 de montage des marteaux 1. Un tel montage d'outils 34 est possible du fait que les marteaux 1 sont uniformément répartis sur le tambour 2 en laissant des vides entre les disques 29. Ces outils de densification 34 permettent d'accélérer la densification des particules d'objets dans l'enceinte de broyage 3 et donc un meilleur rendement de l'ensemble du According to another characteristic of the invention, the drum 2 can be supplemented by densification tools 34 (fiαures 3 and 4) reversible and interchan gageable and mounted in the empty spaces between the discs 29 on the axes 32 for mounting the hammers 1. Such a mounting of tools 34 is possible because the hammers 1 are uniformly distributed on the drum 2 leaving gaps between the discs 29. These densification tools 34 make it possible to accelerate the densification of the particles of objects in the grinding chamber 3 and therefore a better yield for the whole of the
broyeur. grinder.
Il est également possible, conformément à une autre caractéristique de l'invention représentée aux figures 3 à 5, de munir, par soudage, les éléments de coquille 30 recouvrant les disques 29 d'outils de densification 35 sous forme de barres en saillie sur les parties courbes desdits éléments 30.  It is also possible, in accordance with another characteristic of the invention shown in FIGS. 3 to 5, to provide, by welding, the shell elements 30 covering the discs 29 with densification tools 35 in the form of bars projecting from the curved parts of said elements 30.
En outre, les éléments 30 recouvrant les disques 29 d'extrémité du tambour 2 sont avantageusement munies, en supplément des outils de densification 35 d'autres outils de densification.36 à arêtes déflectrices convergentes en direction de l'extrémité opposée du tambour 2. Ce mode de réalisation permet de ramener automatiquement les particules d'objets vers le milieu de l'enceinte de broyage 2 et ainsi d'éviter toute accumulation néfaste près des parois latérales.  In addition, the elements 30 covering the end discs 29 of the drum 2 are advantageously provided, in addition to the densification tools 35, with other densification tools. 36 with deflecting edges converging towards the opposite end of the drum 2. This embodiment makes it possible to automatically bring the particles of objects towards the middle of the grinding chamber 2 and thus to avoid any harmful accumulation near the side walls.
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 présente un tambour dont les disques sont entièrement protégés par des éléments d'usure facilement interchangeables.  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 grinder according to the invention has a drum whose discs are fully protected by easily interchangeable wear elements.
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 drawings attached. 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

REVENDICATIONS
1. Broyeur à marteaux pour le dechiquetage 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, 5) en partie inférieure et en partie supérieure, cette enceinte (3) étant reliée à un dispositif d'alimentation (6) muni de tambours ecraseurs (7, 8) et d'une rampe (9) d'introduction dans le broyeur, caractérisé en ce que le tambour (2) d'entraînement des marteaux (1) est entraîné dans les deux sens de rotation, en ce que la paroi criblante supérieure (5) est interchangeable et mobile au-dessus de l'enceinte de broyage (3), en ce que les parois de l'enceinte de broyage (3) sont munies de blindages interchangeables (10) et en ce que les tambours ecraseurs (7, 8) du dispositif d'alimentation (6) sont réglables en continu dans leur position mutuelle, relativement à la rampe d'introduction (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, 5) in lower part and upper part, this enclosure (3) being connected to a feed device (6) provided with crushing drums (7, 8) and a ramp (9) for introduction into the crusher, characterized in that that the hammer drive drum (2) is driven in both directions of rotation, in that the upper screening wall (5) is interchangeable and movable above the grinding chamber (3), in that the walls of the grinding chamber (3) are provided with interchangeable shields (10) and in that the crushing drums (7, 8) of the supply device (6) are infinitely adjustable in their mutual position , relative to the introduction ramp (9).
2. Broyeur, suivant la revendication 1, caractérisé en ce que la paroi criblante supérieure (5) est avantageusement subdivisée en deux parties (5') et (5") séparées entre elles par une ouverture (5"'), qui, en position normale d'utilisation de la paroi (5) est située au-dessus d'un élément central de densification (11) comportant, à sa partie tournée vers le tambour d'entraînement (2), sur chaque arête longitudinale, une enclume (12), un vérin (13) disposé extérieurement à l'enceinte (3) agissant sur une extrémité de la paroi (5) pour la déplacer afin de libérer des ouvertures de part et d'autre de l'élément central de densification (11).  2. Crusher according to claim 1, characterized in that the upper screening wall (5) is advantageously subdivided into two parts (5 ') and (5 ") separated from each other by an opening (5"'), which, in normal position of use of the wall (5) is located above a central densification element (11) comprising, at its part facing the drive drum (2), on each longitudinal edge, an anvil ( 12), a jack (13) arranged outside the enclosure (3) acting on one end of the wall (5) to move it in order to release openings on either side of the central densification element (11 ).
3. Broyeur, suivant l'une quelconque des revendications 1 et 2, caractérisé en ce qu'il est pourvu, au-dessus de la paroi criblante (5), d'un volet de fermeture (14) manoeuvrable au moyen d'un vérin ou autre, articulé à la paroi latérale dudit broyeur près de la paroi (5), au-dessus de cette dernière et parallèlement à l'élément central (11) et présentant une ouverture de section correspondante à celle de la partie (5') de la paroi ( 5 ) . 3. Crusher according to any one of claims 1 and 2, characterized in that it is provided, above the screening wall (5), with a closing flap (14) operable by means of a cylinder or other, hinged to the side wall of said grinder near the wall (5), above the latter and parallel to the central element (11) and having an opening of section corresponding to that of the part (5 ') of the wall (5).
4. Broyeur, suivant la revendication 1, caractérisé en ce que les blindages interchangeables (10) délimitant les parois de l'enceinte de broyage parallèlement à l'axe du tambour (2) se présentent avantageusement sous forme de plaques munies de pattes de fixation (16) traversant les parois du broyeur et pourvus de trous (17) de passage d'un axe de fixation (18) sur lequel est fixé un manchon muni de deux pattes latérales traversées par deux vis (19) de serrage bloquées en position, chacune au moyen d'un contre-écrou (20), et s'appuyant sur la face externe des parois du broyeur (16).  4. Crusher according to claim 1, characterized in that the interchangeable shields (10) delimiting the walls of the grinding chamber parallel to the axis of the drum (2) are advantageously in the form of plates provided with fixing lugs (16) passing through the walls of the mill and provided with holes (17) for the passage of a fixing pin (18) on which is fixed a sleeve provided with two lateral tabs crossed by two tightening screws (19) locked in position, each by means of a lock nut (20), and resting on the external face of the walls of the mill (16).
5. Broyeur, suivant la revendication 1, caractérisé en ce que de part et d'autre de son entrée (21) sont prévues des enclumes réversibles (22 et 23) destinées à coopérer avec les marteaux (1), l'enclume supérieure (23) présentant une partie dégradée en direction de la paroi criblante supérieure (5).  5. Crusher according to claim 1, characterized in that on either side of its inlet (21) are provided reversible anvils (22 and 23) intended to cooperate with the hammers (1), the upper anvil ( 23) having a degraded part in the direction of the upper screening wall (5).
6. Broyeur, suivant l'une quelconque des revendications 1 et 5, caractérisé en ce que l'enceinte de broyage (3) est munie, à l'extrémité de la paroi criblante (4) opposée à l'entrée du broyeur, d'une enclume complémentaire (24) en saillie par rapport à la paroi de densification la précédant dans le sens de rotation des aiguilles d'une montre.  6. Crusher according to any one of claims 1 and 5, characterized in that the grinding chamber (3) is provided, at the end of the screening wall (4) opposite the inlet of the crusher, d 'a complementary anvil (24) projecting from the densification wall preceding it in the direction of rotation of the needles of a watch.
7. Broyeur, suivant la revendication 1, caractérisé en ce que la paroi criblante inférieure (4) peut être équipée de deux grilles différentes, à savoir, soit d'une grille (4') à dépouille asymétrique en forme d'arc, s'étendant en direction contraire au sens de rotation des aiguilles d'une montre, soit d'une grille (4") avec dépouille symétrique et convergente vers l'extérieur de l'enceinte (3) pour chaque barreau de la grille . 7. Crusher according to claim 1, characterized in that the lower screening wall (4) can be equipped with two different grids, namely, either a grid (4 ') with asymmetrical arc-shaped relief, s 'extending in the opposite direction to the clockwise direction of rotation, either of a grid (4 ") with symmetrical draft and converging towards the outside of the enclosure (3) for each bar of the wire rack .
8. Broyeur, suivant la revendication 1, caractérisé en ce que le dispositif d'alimentation (6), qui est constitué par un châssis (25) déplaçable par pivotement relativement à la rampe d'introduction (9) au moyen d'un vérin (26), comporte au moins deux tambours ecraseurs (7 et 8), dont l'un (7) est logé dans un palier de l'extrémité libre du châssis (25), au-dessus de la rampe (9), et dont le ou les autres (8) est monté sur un châssis annexe (27) articulé à pivotement sur l'extrémité libre du châssis (25) et déplaçable au moyen d'un vérin (28).  8. Crusher according to claim 1, characterized in that the feed device (6), which is constituted by a frame (25) movable by pivoting relative to the introduction ramp (9) by means of a jack (26), comprises at least two crushing drums (7 and 8), one of which (7) is housed in a bearing at the free end of the chassis (25), above the ramp (9), and the other (s) of which (8) is mounted on an auxiliary chassis (27) pivotally articulated on the free end of the chassis (25) and movable by means of a jack (28).
9. Broyeur, suivant l'une quelconque des revendications 1, 2 et 4, caractérisé en ce que le tambour (2) d'entraînement des marteaux (1) est avantageusement muni, au niveau de chaque disque (29) le constituant, d'éléments de coquille (30) en forme de segments circulaires pourvus de joues latérales (31) entourant lesdits disques (29) et fixés sur ces derniers au moyen des axes (32) de montage des marteaux (1), les joues (31) étant appliquées sur les faces correspondantes des disques (29) par l'intermédiaire de douilles (33) serrées entre lesdites joues (31) lors de l'assemblage des disques (29) pour former le tambour (2).  9. Crusher according to any one of claims 1, 2 and 4, characterized in that the drum (2) for driving the hammers (1) is advantageously provided, at each disc (29) constituting it, d shell elements (30) in the form of circular segments provided with lateral cheeks (31) surrounding said discs (29) and fixed on the latter by means of pins (32) for mounting the hammers (1), the cheeks (31) being applied to the corresponding faces of the discs (29) by means of sockets (33) clamped between said cheeks (31) during the assembly of the discs (29) to form the drum (2).
10. Broyeur, suivant la revendication 9, caractérisé en ce que le tambour (2) est complété par des outils de densification (34) réversibles et- interchangeables et montés dans les espaces vides entre les disques (29) sur les axes (32) de montage des marteaux (1).  10. Crusher according to claim 9, characterized in that the drum (2) is completed by densification tools (34) reversible and- interchangeable and mounted in the empty spaces between the discs (29) on the axes (32) for mounting the hammers (1).
11. Broyeur, suivant la revendication 9, caractérisé en ce que les éléments de coquille (30) recouvrant les disques (29) sont munis d'outils de densification (35) sous forme de barres en saillie sur les parties courbes desdits éléments (30).  11. Crusher according to claim 9, characterized in that the shell elements (30) covering the discs (29) are provided with densification tools (35) in the form of bars projecting from the curved parts of said elements (30 ).
12. Broyeur, suivant l'une quelconque des revendications 9 et 11, caractérisé en ce que les éléments (30) recouvrant les disques (29) d'extrémité du tambour (2) sont avantageusement munies, en supplément des ou tils de densification (35) d'autres outils de densification (36) à arêtes deflectrices convergentes en direction de l'extrémité opposée du tambour (2). 12. Crusher according to any one of claims 9 and 11, characterized in that the elements (30) covering the discs (29) end of the drum (2) are advantageously provided, in addition to or densification screens (35) of other densification tools (36) with deflecting edges converging towards the opposite end of the drum (2).
PCT/FR1989/000378 1988-02-03 1989-07-19 Hammer-type crusher for shredding metal objects WO1990000933A1 (en)

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KR1019890701817A KR900700544A (en) 1988-02-03 1989-09-30 A mixture of poly and polyester and products made therefrom.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR88/10083 1988-07-19
FR8810083A FR2634399B1 (en) 1988-07-19 1988-07-19 HAMMER CRUSHER FOR SHREDDING METAL OBJECTS
FR89/00869 1989-01-20
FR8900869A FR2634400B1 (en) 1988-07-19 1989-01-20 HAMMER CRUSHER FOR SHREDDING METAL OBJECTS PROVIDED WITH A DEVICE FOR PROTECTING THE HAMMER DRIVE DRUM

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WO1990000933A1 true WO1990000933A1 (en) 1990-02-08

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GB2154470A (en) * 1984-02-22 1985-09-11 Hoffmann Albert Kg Comminuting apparatus in a mill

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2660213A1 (en) * 1990-03-30 1991-10-04 Becker Arnaud Centrally fed hammer mill for shredding metallic objects
US5690905A (en) * 1990-08-08 1997-11-25 Rhomed Incorporated Peptide-metal ion pharmaceutical labeling method
US5645815A (en) * 1991-02-08 1997-07-08 Diatide, Inc. Radiolabled compounds for thrombus imaging
US5830856A (en) * 1991-02-08 1998-11-03 Diatide, Inc. Radiolabeled compounds for thrombus imaging
US5849260A (en) * 1991-02-08 1998-12-15 Diatide, Inc. Technetium-99M labeled peptides for thrombus imaging
US6074627A (en) * 1991-02-08 2000-06-13 Diatide, Inc. Technetium-99m labeled peptides for imaging
US5567408A (en) * 1992-02-20 1996-10-22 Rhomed Incorporated YIGSR peptide radiopharmaceutical applications
US5925331A (en) * 1992-05-21 1999-07-20 Diatide, Inc. Technetium-99m labeled peptides for thrombus imaging
US5968476A (en) * 1992-05-21 1999-10-19 Diatide, Inc. Technetium-99m labeled peptides for thrombus imaging
EP2851123A1 (en) * 2013-09-20 2015-03-25 Metso Minerals (Deutschland) GmbH Hammer crusher grate
WO2015039836A1 (en) * 2013-09-20 2015-03-26 Metso Minerals (Deutschland) Gmbh Hammer crusher grate

Also Published As

Publication number Publication date
FR2634400B1 (en) 1991-12-06
FR2634400A1 (en) 1990-01-26

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