1541
How to mine
Stoilensky mine started to develop in 1961. This is one of the largest deposits of the Kursk Magnetic Anomaly. After 20 years, next to mine built Mining and Processing Plant (GOK). In the 1990s, the company reincorporated and now mine is part of NLMK Group is one of the three major iron ore suppliers in Russia, accounting for more than 15% of the market. The main products of the plant - iron ore and iron ore sintering. They are used for the production of metal.
Stoilensky lead extraction of iron ore by open way. The main minerals that are mined, - ferruginous quartzites and rich ore. Quarry depth is 375 meters.
To get to the high-grade ore and ferruginous quartzite, you need to remove and move in the dumps millions of cubic meters of clay, silt, sand and chalk. Later, waste rock is also allowed in the case. Chalk is used in the production of cement, sand - construction, rubble - the production of road works.
To get to the high-grade ore and ferruginous quartzite, you need to remove and move in the dumps millions of cubic meters of clay, silt, sand and chalk. Later, waste rock is also allowed in the case. Chalk is used in the production of cement, sand - construction, rubble - the production of road works.
In a career working 24 career truck BelAZ carrying capacity of 136 tons each, nine 55-ton and six 10-ton dump trucks, excavators and 9 39 drilling rigs, 30 traction units and 12 locomotives.
To break up the rock and ferruginous quartzites, you need to spend a blast. This happens about 18 times a year. Initially geologists determine places for explosions - blocks. On selected blocks are drilled network of 40-60 wells, which are staggered at a distance of three or four meters from each other. As well pour explosive in the form of a gel and lay detonators. The total mass of explosives reaches thousands of tons. Detonation is transmitted from hole to hole with a delay of a second. This is done in order to reduce the effect on the seismic ground.
Explosion lots ferruginous quartzite with iron content of 25-29%. Then to the site of the explosion distilled excavators. The volume of the bucket is 10-12 cubic meters. Excavators crushed ore is loaded into dump trucks BelAZ carrying capacity of 136 tons. BelAZ to take out ore transshipment warehouses, placed in the top third of the depth of the pit.
14 million tonnes of iron ore concentrate - volume production
in 2013
On reloading warehouses ferruginous quartzites poured from trucks and loaded into wagons for transportation to housing large crushing concentrator.
On reloading warehouses ferruginous quartzites poured from trucks and loaded into wagons for transportation to housing large crushing concentrator.
There ore from cars poured into large crushing mills that grind rock - derived pieces of 200 mm in diameter. Fragmented ore by conveyor belt is passed into the body of medium and fine crushing for further grinding.
Then ore lumps the size of 15-20 mm fall to the processing plant. In ball mills ore milled again in the powder. After classification and separation he gets on magnetic separators. Drums separators magnetic powder selected from the component, and a waste water mixture is sent to the tailings pond.
The result is an iron ore concentrate with an iron content of 66, 5%. Before giving concentrate on node shipment from it using a vacuum filter removes excess moisture.
Iron ore concentrate to a predetermined moisture content and iron 66, 5% shipped to consumers. It will be used in blast furnaces for steel production, together with fluxes, pellets of iron and other components.
Source: www.the-village.ru
Stoilensky lead extraction of iron ore by open way. The main minerals that are mined, - ferruginous quartzites and rich ore. Quarry depth is 375 meters.
To get to the high-grade ore and ferruginous quartzite, you need to remove and move in the dumps millions of cubic meters of clay, silt, sand and chalk. Later, waste rock is also allowed in the case. Chalk is used in the production of cement, sand - construction, rubble - the production of road works.
To get to the high-grade ore and ferruginous quartzite, you need to remove and move in the dumps millions of cubic meters of clay, silt, sand and chalk. Later, waste rock is also allowed in the case. Chalk is used in the production of cement, sand - construction, rubble - the production of road works.
In a career working 24 career truck BelAZ carrying capacity of 136 tons each, nine 55-ton and six 10-ton dump trucks, excavators and 9 39 drilling rigs, 30 traction units and 12 locomotives.
To break up the rock and ferruginous quartzites, you need to spend a blast. This happens about 18 times a year. Initially geologists determine places for explosions - blocks. On selected blocks are drilled network of 40-60 wells, which are staggered at a distance of three or four meters from each other. As well pour explosive in the form of a gel and lay detonators. The total mass of explosives reaches thousands of tons. Detonation is transmitted from hole to hole with a delay of a second. This is done in order to reduce the effect on the seismic ground.
Explosion lots ferruginous quartzite with iron content of 25-29%. Then to the site of the explosion distilled excavators. The volume of the bucket is 10-12 cubic meters. Excavators crushed ore is loaded into dump trucks BelAZ carrying capacity of 136 tons. BelAZ to take out ore transshipment warehouses, placed in the top third of the depth of the pit.
14 million tonnes of iron ore concentrate - volume production
in 2013
On reloading warehouses ferruginous quartzites poured from trucks and loaded into wagons for transportation to housing large crushing concentrator.
On reloading warehouses ferruginous quartzites poured from trucks and loaded into wagons for transportation to housing large crushing concentrator.
There ore from cars poured into large crushing mills that grind rock - derived pieces of 200 mm in diameter. Fragmented ore by conveyor belt is passed into the body of medium and fine crushing for further grinding.
Then ore lumps the size of 15-20 mm fall to the processing plant. In ball mills ore milled again in the powder. After classification and separation he gets on magnetic separators. Drums separators magnetic powder selected from the component, and a waste water mixture is sent to the tailings pond.
The result is an iron ore concentrate with an iron content of 66, 5%. Before giving concentrate on node shipment from it using a vacuum filter removes excess moisture.
Iron ore concentrate to a predetermined moisture content and iron 66, 5% shipped to consumers. It will be used in blast furnaces for steel production, together with fluxes, pellets of iron and other components.
Source: www.the-village.ru
