METHOD OF GRINDING REBELLIOUS ORES AND CAVITATION DISPERSER FOR METHOD EMBODIMENT Russian patent published in 2003 - IPC

FIELD: mining industry; applicable in fine grinding of rebellious ores for their preparation to concentration. SUBSTANCE: method includes dosed supply of water-ore suspension and grinding it with opening of mineral grains by natural defects. Ore grinding is performed in cavitation disperser successively generating the hydro-impact loads and cavitation pulses formed by widening of flow channel curd and vibrations of resonators with frequency of ore particle natural oscillations. Cavitation disperser has body accommodating rotor and stator with slots in side walls and working chamber. Said slots in rotor are made in the form of subsonic nozzles narrowing towards stator whose slots are widening towards body and have concave surfaces. Cavitation disperser has resonators controlled by vibration frequency and secured in working chamber coaxially to stator slots. Numbers of slots in rotor and stator are different. EFFECT: reduced power consumption and time of ore grinding and specific quantity of metal due to provision of conditions for breakage of ore particles in water suspension under regime of resonant breakage. 3 cl, 3 dwg