COMPOSITION OF FILLING MIXTURE AND METHOD OF ITS PRODUCTION Russian patent published in 2013 - IPC E21F15/00 

FIELD: mining.

SUBSTANCE: composition of a mixture for filling of mined space includes wastes of enrichment processes, lime, sodium lignosulfonate and water. The specified wastes are current tails of floatation dressing of polymetal ores with moisture of less than 30% at the following content of components, kg/m³: current tails of floatation enrichment of polymetal ores with moisture of less than 30% 1800 - 2010, lime 80 - 120, sodium lignosulfonate 1.2 - 1.5 and water - balance to 1 m³. The method to manufacture the composition of the mixture for filling of the mined space includes drying of current tails of floatation enrichment of polymetal ores to moisture content of less than 30%. Sodium lignosulfonate is previously dissolved in water, and then mixed with dried tails and lime.

EFFECT: simplified and cheaper filling mixture with preserved operating properties.

3 cl, 1 tbl