FIELD: mining.
SUBSTANCE: invention relates to beneficiation of minerals from ore pulps and can be used for processing mineral raw material, containing non-ferrous, ferrous, rare, precious metals, non-metal minerals, as well as when treating waste water from solid particles and oil products. Method for beneficiation of minerals by density of useful component comprises passing a hydraulic mixture through, connected with pressure hydrotransport, hydraulic pipe at a rate providing stable mode of hydrotransportation of solid phase particles, wherein hydraulic mixture is passed via at least one, curvilinear portion made in said pipe in order to form stable secondary cross flow forming paired vortex, which, when applied on progressive flow of hydraulic mixture, leads to emergence of two screw threads, which change path of particles of solid phase depending on their density. Radius of curvature of pipe and average speed of hydraulic mixture is set depending on density of extracted useful component. Device for beneficiation of minerals by density of useful component for implementing method comprises connected with pressure hydrotransport hydrodynamic pipe for passage of hydraulic mixture, connected to a receiver for separated particles of useful component through a slot in its wall. Hydrodynamic pipe is made with at least with one curvilinear section, radius of curvature and speed of hydraulic mixture through which are set by selecting depending on density of extracted useful component. Slot is made on curved section. Receiver for separated particles of useful component is divided into communicating sections, each of which is equipped with locking devices, and one of them is connected to pipelines for water supply and discharge of gas.
EFFECT: high efficiency of separation of particles of solid phase of different fractions from liquid during continuous operation of installation.
3 cl, 4 dwg
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