Crushing material

Details Crushing material Crushing material

B - Operations, Transporting

02

C

B02C 4/02 (2006.01) B02C 4/08 (2006.01) B02C 4/28 (2006.01) B02C 4/32 (2006.01) B02C 21/00 (2006.01) B02C 25/00 (2006.01)

Patent

CA 2585345

A method and an apparatus for crushing material, particularly mined material, is disclosed. In one embodiment two or more pairs (3,7) of crushing rolls successively crush mined material. The pairs of crushing rolls are arranged and operated so that an upstream pair (3) of rolls produces a feed, preferably a pressurised feed, for a downstream pair (7) of rolls. In another embodiment, at least an upstream pair (3) of rolls is driven intermittently, for example by means of a stepping motor to provide stepped rotational movement of the rolls.

L'invention concerne un procédé et un dispositif pour le broyage de matériau, en particulier issu de la mine. Selon une variante, on décrit deux ou plus de deux paires (3,7) de rouleaux broyeurs qui broient ledit matériau en succession et qui sont disposées et exploitées de sorte qu'une paire amont (3) de rouleaux produise une charge, de préférence sous pression, destinée à une paire aval (7) de rouleaux. Selon une autre variante, au moins une paire amont (3) de rouleaux est entraînée par intermittence, par exemple au moyen d'un moteur pas-à-pas, afin d'assurer au pas-à-pas un mouvement de rotation des rouleaux.

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