Method and device for fine grinding of mineral particles

Details Method and device for fine grinding of mineral particles Method and device for fine grinding of mineral particles

B - Operations, Transporting

02

C

B02C 17/20 (2006.01)

Patent

CA 2450190

A method for fine grinding of mineral particles consists of producing beads (38), made from steel with a high carbon content, or cast iron, by means of atomisation with a granular size range less than 15 mm and mixing the beads (38) with balls (36), made from steel or cast iron with dimensions between 20mm and 120mm, in a rotating grinding mill, the proportion by weight of beads (38) depending on the granular size of the mineral particles for grinding and the desired reduction ratio.

Un procédé de broyage fin de particules minérales consiste à fabriquer par atominsation des billes (38) d'acier à haute teneur en carbone ou de fonte dans une gamme de granulométrie restant inférieure à 15 mm, et mélanger dans un broyeur (12) rotatif les billes (38) avec des boulets (36) en acier ou en fonte ayant des dimensions comprises entre 20 mm et 120 mm, la proportion pondérale des billes (38) dépendant de la granulométrie des particules minérales à broyer, et du rapport de réduction souhaité.

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