PJSC «Zaporizhstal» performed the second category overhaul repair of Blast Furnace No. 5 (BF-5) according to the program of the main production facilities updating. Duration of the overhaul repair made up 45 days, financing was about UAH 107 million.
In the course of repair, they restored the shell integrity of BF-5 and its geometry, replaced the belles top charging device (BLT), made complete relining of the furnace shaft applying the state-of-the-art technologies, and restored the refractory lining of the bottom and the hearth. The common weight of the newly lined refractory lining made up over 1.5 thousand tons. Besides, they performed repair of the cooling system, the main parts of the dust-exhaust system equipment at the Blast Furnace No.5.
The Works’ specialists together with contractors and designing institutions performed the overhaul repair of Blast Furnace No.5. Daily, the repair involved totally over 500 people. The general weight of the erected metal structures at BF-5 made up about 1 thousand tons.
Daily output of BF-5 makes up about 2,850 tons.