FIELD: mining industry.
SUBSTANCE: proposed invention relates to the mining industry and can be used in the development of natural and man-made high-clay alluvial mineral deposits with a high content of fine gold. The method for activating the microdisintegration of the polymineral component of the slurry includes a high-speed flow of the jet into the hydrodynamic generator on a cone-shaped splitter with blades, processing the slurry flow under active hydrodynamic influences by means of the influence, inclined surfaces with cavitation sills placed inside the body of the device and sequentially installed from different sides along the flow of the slurry ensuring deep disintegration of the polymineral component of the slurry to the micro level by converting the kinetic energy of the fluid flow into the energy of acoustic vibrations in the hydrodynamic generator. A high-speed jet from the diffuser is sequentially supplied to the cone-shaped splitters with blades for stratification of the flow and amplification of oscillations, installed in steps in the center of the hydrodynamic generator and fixed on an axis with a reverse taper along the flow of the slurry. To enhance the fields of primary hydrodynamic cavitation and create secondary acoustic cavitation along the perimeter of the hydrodynamic generator casing, a cascade overflow of the slurry flow occurs, interacting with inclined screw-type surfaces made with an offset along the flow of the slurry and equipped with cavitation sills made along the inclined screw-type surfaces, as well as equipped with support rods to increase the rigidity of the structure. The gap between the cone-shaped baffles/splitters along the axis is set depending on the ratio of solid to liquid in the slurry to obtain a given average value of the bulk density of the hydrodynamic disturbance to provide a pressure gradient exceeding the ultimate strength of the microparticles.
EFFECT: increase in technological and operational efficiency of the process of deep disintegration of the polymineral component of the slurry.
1 cl, 2 dwg
