Method of operating electric arc furnace

A method of operating an electric arc furnace,

• wherein the electric arc furnace comprises:
• (a) a furnace shell that includes a cylindrical circumferential wall portion, a furnace bottom portion and a tapping hole;
• (b) a furnace roof that has a plurality of electrodes provided so as to face downwards;
• and
• (c) a rotating apparatus that rotates the furnace shell around a vertical axis relative to the electrodes,
• wherein the method comprises:
• a charging step of, above the furnace shell, opening an opening-and-closing door on a bottom portion of a scrap bucket, which contains a metal material, to form an opening, and falling the metal material into the furnace shell via the opening, and
• a melting step of melting the metal material, and
• wherein the furnace shell is rotated by the rotating apparatus until achieving a positional relationship in which a direction of a line connecting a center of the furnace shell to a center of the tapping hole intersects an extension direction of a seam at a closing side of the opening-and-closing door of the scrap bucket, then the opening-and-closing door of the scrap bucket is opened in this positional relationship, and the metal material is charged.