ELECTRIC ARC FURNACE AND METHOD FOR PREHEATING SCRAP IN ELECTRIC ARC FURNACE

摘要

The present invention provides an electric arc furnace. The electric arc furnace of the present invention comprises: a furnace body having a cylindrical container for accommodating scraps to be melted and a container cover for covering the upper portion of the container; a scrap preheating and charging furnace which stores therein the scraps to be supplied to the furnace body and preheats the scraps using a part of a hot exhaust gas discharged from an exhaust port of the furnace body before the scraps are supplied to the furnace body, the scrap preheating and charging furnace being provided on one side of the furnace body; a main exhaust line for connecting the exhaust port of the furnace body to an exhaust unit having a suction fan; and an exhaust gas recirculation unit for supplying a part of the hot exhaust gas discharged through the main exhaust line to the scrap preheating and charging furnace.