FIELD: process engineering.
SUBSTANCE: invention relates to mining and can be used for development of natural and man-made high-mud gravel deposits of minerals with increased content of fine gold. Proposed method comprises jet high rate feed into hydrodynamic generator and material treatment by active hydrodynamic affects caused by interconnected stationary cavitation elements arranged coaxially inside the housing. Deep disintegration of hydro mix mineral component (classified to 50-mm class) to micro level of 1-2 mcm is performed by conversion of fluid flow kinetic energy into that acoustic oscillations in hydrodynamic generator. High-rate submerged jet is created at the inlet of the latter by spherical reflection surface of said stationary cavitation element and toroidal cavitation zone with oscillation jump amplification and origination of the fields of primary and secondary acoustic cavitation in hydro mix. Slit-like openings and vanes of tapered cavitation surfaces and stacks of moving resilient plate-like cavitation elements are used for multiple thin-jet separation of hydro mix with amplification of cavitation-acoustic effects to mineral disintegration of the mix mineral component.
EFFECT: higher efficiency of disintegration.
5 cl, 5 dwg.
