FIELD: mining; technological processes.
SUBSTANCE: group of inventions relates to processes of extraction and beneficiation of metal-bearing ore, in particular, to concentration of ore of precious or rare-earth metals, for example, in gold-mining industry. Method for automated instrumental beneficiation of metal-containing ore includes redistribution of metal-containing ore by means of transfer-forming assemblies, instrumental registration of metal particles in formed massif of ore and separation of metal particles from waste rock and sludge with production of metal concentrate. Redistribution of metal-containing ore is carried out by filling cells in perforated plate elements arranged in lower part of ore feed hopper with possibility of periodic displacements. Instrumental recording of metal particles is performed by means of metal sensors located in zones of cells passage. Separation of metal particles is carried out either by means of nozzles, or by means of mechanical pushers arranged downstream of metal detectors along the process, by pushing cell contents with detected metal particles. Method is implemented at the plant including at least one reloading-shaping unit, devices for registration of metal particles in the formed massif of ore and facilities for separation of metal particles from empty rock and sludge with obtaining metal concentrate. Transshipment-forming unit for metal-containing ore is made in the form of feeding hopper and located in its lower zone of not less than one set of movable perforated plate-like elements with cells. Devices for recording metal particles are made in form of metal sensors arranged on metal pickup crossarms coaxially to cells of plate elements. Means for separation of metal particles are made either in the form of nozzles, or in the form of metal extruders located after metal sensors along the process on separate traverses coaxially to cells of plate elements.
EFFECT: increased efficiency of installation in different climatic zones and operating conditions, as well as increased efficiency of metal-containing ore beneficiation.
10 cl, 33 dwg
