Repair of flue gas stack No. 1 and restoring repair of main smelting unit, Vanukov furnace No. 2, commenced at Copper Plant. Activities will last for ten days.
According to the production process the repair of flue gas stack (treated off-gas from Vanukov furnaces is discharged through stack No. 1) is associated with repair of furnace No. 2 or No. 3.
The maintenance will involve the whole production chain. The following equipment will be inspected: furnace charging system (including three conveyors, eight feeders with hoppers), gas treatment system (Ventury pipes, droplet separator, gas duct 1400 mm in diameter), furnace cooling elements and off-gas cooling system (gas cooler, eight heat-exchangers, two tray thickeners, and others).
At the furnace itself it is planned to replace about 65 copper cooling elements, 70 copper skid pipes, about 200 tons of refractories, 4000 meters of different pipelines, and about 20 tons of steelwork.
Norilsknickelremont and Spetsremenergo-21 were assigned as contractors for the repair. 180 people per day will be engaged in repair of the furnace and production chain.
Restoring repair will allow reliable, trouble-free operation of the furnace and efficiency of the whole production chain. (Norilsk Nickel/Ukrainian metal)
