METHOD OF REDUCING RISK OF FLOODING OF PUMP STATIONS IN MINES Russian patent published in 2025 - IPC E21F15/08 B65G5/00 

FIELD: mining.

SUBSTANCE: invention relates to mining and can be used in development of mineral deposits by chamber system with hydraulic filling of chambers. Method of reducing the risk of flooding of pumping stations in mines involves hydraulic filling of chambers, pumping out of circulating brine by pumping units of the local pumping station, monitoring of brine level in the brine collector by means of an automation system. For installation of pumping units there are openings with slopes in the upper and lower levels of the mine. On the upper horizon at different elevations on height there are transport and ventilation slopes, which are connected to each other by crossings. On the lower horizon there is a drainage slope, from which under each breakdown of the upper horizon there are openings-brine collectors and they are connected to the breakdowns by brine bypass wells. Two pumping units are installed in the initial breakdown of the upper horizon at different elevations in height and when the critical level of the brine is exceeded, successive transfers of the pumping units to the above breakdowns are carried out with provision of uninterrupted pumping of brine until the critical inflow of brine into the brine collector is eliminated. Pump unit installed at the lower mark of the initial breakdown is installed on the lower mark of the above-located breakdown, and the pump unit installed at the upper mark of the initial breakdown is installed on the upper mark of the above-located breakdown.

EFFECT: providing uninterrupted pumping of circulating brine and maintaining serviceability of the pump station during hydraulic filling of chambers in conditions of sharp rise of brine level in brine collector.

4 cl, 3 dwg