METHOD FOR COMBINED DEVELOPMENT OF ORE Russian patent published in 2018 - IPC E21C41/00 B07B9/00 

FIELD: mining.

SUBSTANCE: invention relates to the mining industry and is intended for the ores with the useful component low content extraction and processing, in particular, uranium. Method comprises the ore breaking, the chipped ore discharging from the chambers, its crushing, screening, X-ray radiometric separation, separation products collection, and differs in that when the ore is screened, selecting the oversize fraction with fineness of +150 mm, which is subjected to additional crushing, after which it is combined with the screen throughs and subjected to secondary screening with separation into three products: oversize fraction with fineness of -150+40 mm, screen throughs with fineness of -40+5 mm and enriched ore fines with fineness of -5+0 mm. Ore fines are processed on the surface by hydrometallurgical methods, ore with fineness of -150+40 mm is subjected to X-ray radiometric separation with the ore separation into concentrate, industrial products and tailings, the concentrate is processed on the surface by hydrometallurgical methods, the industrial product is combined with the screen throughs with fineness of -40+5 mm and placed into the worked out space for underground leaching, separation tailings are delivered to waste treatment chambers and used as the dry backfilling material.

EFFECT: increasing in the development method efficiency by reducing the produced to surface ore amount by 40–45 %, use of separation tailings (waste rock) as the backfilling material and obtained during sorting poor ore modular underground leaching.

1 cl, 6 dwg