TECHNICAL FIELD The present invention relates to a method of manufacturing a steel in an arc furnace and an arc furnace for performing the same.

摘要

The present invention relates to an arc furnace comprising a vessel accommodating a bath of molten steel, a loop lying at the top of the vessel, and a single loop electrode or a plurality of loop electrodes containing arc electrodes placed in the cylinder, Wherein the jetting gas is sprayed from an upper portion of the furnace and the jetted gas is sprayed toward the surface of the bath so that the impingement region of the jetting gas does not cover the electrode or the cylinder on the surface of the bath, And the gas penetrates shallowly into the bath.;The present invention also relates to a method for producing a single loop electrode or a single loop electrode or a plurality of single loop electrodes placed in a cylinder, comprising a container 1 for containing molten steel 2 and a steel material 2 'to be melted, And means for injecting oxygen gas jets (12, 13, 14) toward the surface of the steel (2) in the vessel (1) Wherein the means for preventing the collision does not cover the electrode or the cylinder, characterized in that the means comprises the tuyeres (9, 10, 11) formed in the roof (3) will be.