FIELD: mining engineering.
SUBSTANCE: method includes feeding hydraulic mixture and separation of mineral hydraulic mixture component into fractions by creating a profile of flow velocities due to installation of flow deformations in inclined chute with smooth bottom, taking into account dilution of hydraulic mixture, change of inclination of inclined chute and granulometric composition of gold, discharge of slurry in benefication working cycle and periodically automated cleaning of heavy fraction from zones with removable and automatically controlled lifting of templates by means of an irrigation system. In the process of the benefication working cycle, the hydrodynamic effects of the resonance type are periodically formed as mineral hydraulic mixture enters the front part of the inclined chute with disintegration system of clay inclusions by means of flat stationary dividers rigidly fixed by supports on the sides of the inclined chute from two sides in the fron and the middle portions of the inclined chute, between the zones of heavy fracion deposition with templates. The dividers are installed in pairs by cross-piece under inclines relative to the planes parallel to the smooth bottom, at angles of 10° to 20° and in a certain sequence from the top to the bottom, in the front part of the inclined chute depending on dynamics of disintegration of highly-clay sands with gaps between each other and the smooth bottom, exceeding the maximum size of the pellets of clay inclusions in the mineral hydraulic mixture, and oriented at one angle equal to 90°, towards mineral hydraulic mixture, for formation of rarefied areas under smooth and flat stationary dividers, providing formation of cavitation effect facilitating destruction of clay inclusions and extraction of fine and fine mineral particles of valuable components.
EFFECT: increased performance by providing efficiency of disintegration process of hydraulic mixture mineral component of high-clay placers of noble metals with high content of thin fractions of valuable components.
3 dwg
