METHOD OF LAYER-BY-LAYER LAYING OF CLAY-SALT SLIMES AND SALT WASTES IN ONE CHAMBER Russian patent published in 2011 - IPC E21F15/00 

FIELD: mining.

SUBSTANCE: invention relates to mining and can be used in underground mining of potash mines with goaf stowing. Proposed method comprises forming laying cavity in the chamber, separate transfer and storage of salt wastes and clay-salt slimes, discharged of settled brine. Note here that chamber laying cavity is filled, first, with clay-slat slimes and, after settling of said slimes and brine clarification, salt wastes pulp is fed into said chamber to fill it completely. Note also that solid fraction of clay-salt slimes fed into the chamber is determined by the following formula : where M_sl is weight of solid clay-salt slime fraction in the chamber, t; M_sc is weight of salt waste in the chamber without clay-salt slime, t; S+Sl is sum of salt wastes and clay-salt slimes withdrawn from enrichment process. Invention is detailed in dependent claims.

EFFECT: increased volume of laid clay-salt slime in goaf stowing.

4 cl, 1 ex, 3 dwg