FIELD: mining.
SUBSTANCE: present invention pertains to mining valuable minerals from strong and high-ductile sandy and clay rocks during open mining of gold-bearing placers. The hydro-transportation pressure system with cavitation elements comprises a pipe with curves, and pipe narrowing and widening elements, rigidly joined together. The hydro-transportation pressure system has a jet aero-hydrodynamic cavitation system and rigidly fixed swirlers. The jet aero-hydrodynamic cavitation system comprises a system of jet nozzles, which are directed, with provision for supplying air in the direction of the main movement of the hydro-stream, in the zone of the widening element, and fitted between the narrowing element and the widening element with insertion of jet nozzles in the wall of the widening element, with provision for air-tightness. Round diverters are fitted in front of the jet nozzles. The swirlers are fitted inside the narrowing element and the widening element, and are in form of right-angled triangles, the acute angles of which in the narrowing element, are oriented in the main direction of movement of the hydro-stream, and opposite the main direction of movement of the hydro-stream in the widening element.
EFFECT: intensification of the process of guided destruction of sandy and clay rocks using jet aero-hydrodynamic cavitation with pressure hydro-transportation to high-level processing systems.
6 dwg
