FIELD: mining.
SUBSTANCE: composition of the mixture for filling the recovered cavity includes, per 1 m3: wastes of leaching the tails from the complex ore enrichment - 1380-1590 kg, quicklime grinded to 1-3 mm - 40-180 kg, sodium lignosulphonate - 0.80-1.5 kg, water - remaining till 1 m3. Sodium lignosulphonate is dissolved in water and then mixed with the other components of the specified composition.
EFFECT: consumption of precious components, energy and materials is reduced; single-purpose rock recovery for mixture preparation is avoided and mixture solidification is accelerated.
6 cl
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