A METHOD FOR INCREASING SCRAP MELTING RATE IN ELECTRIC FURNACE

摘要

PURPOSE: A method for promoting smelting of scrap iron during operation of an electric furnace is provided to promote smelting of scrap iron, thereby decreasing a basic unit of electric power by increasing heating value of aluminum dross higher using peroxidation free liquid oxygen together with aluminum dross. CONSTITUTION: In an operation method for an electric furnace comprising smelting and refining by conducting charged scrap ore, a method for promoting smelting of scrap iron during operation of an electric furnace comprises the processes of feeding 12 to 48 kg of aluminum dross briquette per ton of charged scrap ore before charging the scrap ore, charging and conducting the scrap ore, and supplying 45 to 75 wt.% of liquid oxygen per aluminum dross briquette until the scrap ore is completely smelted. Therefore, a smelting time of scrap ore and a basic unit of electric power can be reduced during operation of an electric furnace.