Mill device

Details Mill device Mill device

B - Operations, Transporting

02

C

B02C 17/04 (2006.01) B02C 17/22 (2006.01)

Patent

CA 2106226

According to the invention there is provided a mill drum comprising a hollow drum structure in use mounted to rotate about a substantially horizontal axis extending longitudinally through the bore of the drum structure. The drum structure including lifter means mounted thereto to extend into the bore of the drum structure. The lifter means in use when the drum structure rotates and material to be ground has been introduced into the drum structure, selectively catch and scoop up larger parts or fragments of the mill contents from the bottom of the drum structure while allowing smaller particles to remain at the said bottom. The lifter members thereafter drop the scooped up parts or fragments at or towards the upper end of the rotating drum structure causing the parts or fragments to fall onto the rest of the contents at the bottom of the drum structure and thus causing a milling action.

'invention porte sur un tambour de broyage comportant une structure creuse montée et tournant sur un arbre essentiellement horizontal qui se prolonge longitudinalement dans l'alésage de la structure du tambour. La structure du tambour comprend un mécanisme releveur intégré qui se prolonge dans l'alésage de la structure du tambour. Le mécanisme releveur, qui fonctionne lorsque la structure du tambour tourne et que le matériau à broyer a été introduit dans la structure du tambour, prend de façon sélective de gros morceaux ou fragments de matériau dans la partie basse de la structure du tambour tout en laissant les petites particules dans ladite partie basse. Les éléments du mécanisme releveur font tomber les parties ou fragments en partie haute ou vers la partie haute du tambour d'où elles retombent sur le reste du matériau dans la partie basse du tambour, ce qui produit une action de broyage.

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