Customised Lining Design for Improvement in Lining Life of 150T Steel Ladle at Rourkela Steel Plant

摘要

At Rourkela Steel Plant, the life of steel ladle was low mainly due to failure at bottom and slag zone and sometimes in metal zone. For the improvement in life in key brick lining, design was made in place of vartical brick lining. For the improvement in the life of steel ladle bottom, Al_2O_3-MgO-C bricks (AMC) was developed and for the improvement in metal zone, 75 percent Al_2O_3 brick with repetitive PLCR was tried. MgO-C bricks with superior properties were used in slag zone. Around 40 percent improvement in ladle life was achieved with a combination of design and the use of superior quality refractories in different zones.