FIELD: mining.
SUBSTANCE: present invention pertains to mining minerals from high-strength and high-plasticity sand and clay rocks during surface mining of gold-bearing placers. The hydro-transportation pressure system with mechanical cavitation has a narrowing element and an element for expanding the mechanical cavitator, with rigidly fixed swirlers. The movable reflecting element has an opening with curved edges. The swirlers are in form of right-angled triangles, the acute angles of which, in the narrowing element, are aligned in the direction of motion of the hydro-stream, and in the expansion element - against the direction of motion of the hydro-stream. The movable reflecting element is fitted on an axis with provision for periodic partial covering of the narrowest opening of the mechanical cavitator on both sides and is connected to the actuator of its rotation in the vertical plane.
EFFECT: intensification of the process of directed crushing of sand and clay rocks using mechanical cavitation with application of hydro-transportation to high-level processing system.
7 dwg
