METHOD OF REMOVING BRINE DURING FILLING CHAMBERS Russian patent published in 2019 - IPC E21F15/08 E21F16/00 

FIELD: mining.

SUBSTANCE: invention relates to mining and can be used in development of mineral deposits by chamber system with chamber filling. Proposed method comprises preparatory works on upper and lower beds to be filled with chambers. Initially at the mouth of the ore discharge holes of upper and lower formations there installed are filtering wells. Filtration crosspieces are installed at mouths of filled upper chambers, and blind bridges are erected in extraction and ventilation gates of the lower formation. Sectional brine-receiver is located in the lowest point of the lower formation in end waste chambers, and pumps of the district pump station are placed in the extraction formation of the lower formation. Then pulp-by-flow wells are drilled from soil of chambers of upper formation into roof of chambers of lower formation and in interchamber pillars of upper formation. Lining material is fed into lower bed chambers via pulp-bypass wells from upper formation, brine is discharged through filtration wells of ore discharge wells to conveyor track, then through the wells to the section brine-force pipe, from which is pumped by pumps of the pump station, after which the upper reservoirs chambers are filled, note here that said brine is drained via filtration wells of the ore-desiccation wells to lower formation, then into conveyor drift and then through wells to sectional brine pipe, from which they are pumped by pumps of pump station.

EFFECT: high degree of filtration of brine from filling operations.

1 cl, 3 dwg