FIELD: mining.
SUBSTANCE: disclosed group of inventions relates to mining in the field of geotechnologies - methods of extracting solid mineral by means of underground leaching (UL). Method of selective extraction of metals from liquid bulk concentrate of useful components of ore at mining site at underground leaching includes supply of collective concentrate to underground step stratifying string at mining section, stratification of collective concentrate into light, medium and heavy fractions, each within its cylindrical volume of stratifying string, corresponding to specific contribution of fractions into volume of liquid collective concentrate and ratio of step diameter to its height equal to one to one, and extracting from the heavy fraction of the priority useful component of the ore by means of a gambling-like matrix which is disseminated by metalophilic microorganisms, which regularly oscillates up and down along the axial axis of symmetry of the cylindrical volume of the lower stage containing the heavy fraction. After bacterial extraction of the priority useful component from the heavy fraction, all fractions separately, first, the light fraction is first from the stratifying tower top step, then the middle fraction is from the middle stage, after, heavy fraction - from lower step in series laminar flow pumped into individual underground collecting tanks, and sludge from sump - into underground sludge collector, from where they are taken for further separate enrichment at the production site and obtaining a compact intermediate product suitable for transportation outside the mining industry for process repartition and/or industrial use. Method is realized by means of an automatic device containing an underground three-staged stratifying string with a sump.
EFFECT: technical result is higher efficiency of selective extraction of metals from liquid bulk concentrate of useful components of ore at production site at underground leaching.
9 cl, 7 dwg
