FIELD: mining.
SUBSTANCE: proposed invention relates to mining industry and can be used for gravitational extraction of precious metals from natural and technogenic ores and high-clay placers containing fine and fine particles of valuable components. Method for gravity extraction of polymineral components with hydrodynamic activation includes preliminary disintegration and classification of high-clay sands, Supply of slurry to the plant for concentration in thin-layer flow, trapping of polymineral components by removable traps of fine gold with rounded walls, accumulation of heavy fraction of valuable components and unloading of polymineral components. After preliminary disintegration and classification, micro-disintegration is carried out by supplying a high-speed jet of hydraulic mixture through a nozzle to a flat surface of a divider, which is coupled through a base with stiffeners and a cone-shaped divider in the device for preliminary disintegration, made with inclined vertical walls and straight front wall to reflect the flow of hydraulic mixture, as well as with inclined guides for preliminary formation of the flow of the hydraulic mixture and smooth input to the enrichment plant in the thin-layer flow, made in the form of inclined chutes with sections of hydrodynamic activation arranged in two rows, sections are installed on support frames and have arc-shaped walls on both sides along the flow of hydraulic mixture to intensify activation of stratification by means of wave-like movement of hydraulic mixture flow formed by narrowing gaps. Bottom of removable traps of fine gold is made according to configuration of bottom of sections of hydrodynamic activation. Rounded walls are made according to the configuration of the arched walls of the above sections and are equipped with fastening elements for connection of the grippers with the bars of the lifting mechanism of the automatic control system. Accumulation of heavy fraction of valuable components at the bottom of removable traps is fixed by means of sensors of automatic control system installed on arc-shaped walls of inclined chutes. Process of completion of unloading of polymineral components is monitored by means of sensors fixed on rods of the lifting mechanism of the automatic control system.
EFFECT: increased process and operational efficiency of extraction of fine and fine particles of valuable components in thin-layer flows due to activation of hydraulic mixture micro-disintegration.
1 cl, 4 dwg
