B - Operations – Transporting – 02 – C
Patent
B - Operations, Transporting
02
C
B02C 4/00 (2006.01) B02C 7/00 (2006.01) B02C 15/00 (2006.01) B02C 17/00 (2006.01)
Patent
CA 2619011
A method for reducing particle size of a particulate comprising feeding a feed material to a grinding mill having a power of at least 500kW, the mill having a specific power draw of at least 50kW per cubic metre of grinding volume of the mill and the grinding mill including a grinding media comprising particulate material having a specific gravity of not less than 2.4 tonnes/m3 and a particle size falling in the range of from about 0.8 to 8mm, grinding the feed material in the grinding mill and removing a product from the grinding mill, the product having a particle size range such that D80 of the product is at least about 20 microns.
La présente invention concerne un procédé permettant de réduire la taille d'un matériau particulaire, consistant à : alimenter un broyeur en matériau d'alimentation, ledit broyeur présentant une puissance d'au moins 500 kW, la meule ayant un prélèvement de courant spécifique d'au moins 50 kW par mètre cube de volume de broyage de la meule et le broyeur incluant des corps broyants comprenant un matériau particulaire ayant une masse volumique d'au moins 2,4 tonnes/m3 et une taille de particule comprise dans la plage allant de 0,8 à 8 mm,: broyer le matériau d'alimentation dans le broyeur et retirer un produit du broyeur, le produit ayant une plage de taille de particule telle que le D80 du produit mesure au moins environ 20 microns.
Anderson Gregory Stephen
Curry Daniel Charles
Pease Joseph Damian
Goudreau Gage Dubuc
Xstrata Technology Pty Ltd
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