Development of graphite fields

The development of graphite ores is carried out by open and underground methods. Among the three operated graphite deposits in Russia, two (Noginskoye, Botogolskoye) are being developed underground and one (Taiginskoye) is open.

The sizes of the quarry with open development at the Taiginskoye deposit of crystalline graphite have a length of about 3 km, a width of 200-250 m and a depth of more than 50 m. Losses in production are about 1%, dilution is negligible.

In the United States, the open mining of graphite ore is carried out using drilling and blasting operations with the subsequent transportation of ore by road to the concentrators.

The original system of development of graphite deposits is applied in the Republic of Madagascar. Openly processed are the upper, weathered graphite ores to a depth of 30-40 m. The work is carried out by terraces with the descent of ore to the lower horizons, from where the ore enters the concentrator.

The Noginsk graphite deposit, developed by the underground method (mine and mine), is characterized by a dilution rate of 2.8%, an ore humidity of 4.5%, a loss of 17.8%.

The Botogol deposit of high-quality, dense-grained graphite is developed by the tunnel method. The extraction is carried out by horizontal layers from the bottom upwards, with a bookmark of clearing space. Losses in production are about 8%.