METHOD FOR ORE ATTRITIONING Russian patent published in 2009 - IPC B03B1/00 B03B5/02 

FIELD: mining.

SUBSTANCE: invention is related to methods for cleaning and enrichment of particulate materials and may be used in preparation for further processing of rocks, in which useful component is either located in shell or in mineral grain nucleus. Method for attritioning of ores includes mixing of pulp in machine chamber in presence of reagents and material, hardness of which is more than 6 according to Mohs scale. Reagent used is peptizing agent, for instance, liquid glass with temperature of 40° or salts of carboxymethylcellulose. Material with hardness of more than 6 according to Mohs scale is represented by granules with diametre of 4-10 mm. Lower part of machine chamber is arranged in the form of truncated cone with height that does not exceed distance from chamber bottom to upper disk of impeller, under which under-impeller cone is installed. Turbulent motion of pulp is created for maximum collision of mineral particles with granules with the help of radial ribs arranged on truncated cone.

EFFECT: higher efficiency of films attritioning from surface of grainy materials, reduction of intermediate product amount, and also lower circulation of enrichment products and improved quality of produced concentrate without extraction losses.

1 dwg, 4 ex