To increase the supply of fresh air to the lower horizons of underground mines, in 2017 we launched main ventilation fans in the western service shaft of Kirovsky Mine and the VS-1 and VS-2 shafts of Rasvumchorrsky Mine. The air supplied to the mine is heated using gas-powered heating units.
Investment in the project stands at RUB 1.5 billion.
The main shaft No. 2 (GS-2) equipped with two skips (self-unloaders) with a capacity of 45 t was put into operation after an overhaul at the Kirovsk mine in August 2015. From the engineering perspective, it is a highly complex underground crusher and above-ground mining facility designed to deliver ore from the underground facility to the surface from a depth of about 350 m. The launch of GS-2 enabled us to replace retired capacities and boost the mine’s production from 14 to 22 mtpa.
Total investment in the project exceeded RUB 12 billion.