The application discloses a method for reducing iron loss in
slag in early
smelting stage of an electric furnace, and belongs to the technical field of
electric arc furnace
steelmaking. The method comprises the following steps: controlling the temperature in the early blowing stage to be 1350-1450 DEG C, which comprises two stages, the first stage is 0-5 min after the blowing is started, and the
oxygen blowing intensity is 0.2-0.5 m3 / t / min; the second stage is from 5 min after the blowing is started to before the
slag is discharged in the early stage, the
excess oxygen content in the
slag is calculated according to the
flue gas analysis result, and the blowing parameters are formulated, wherein the
excess oxygen content in the slag refers to the total
oxygen content in the slag except for
silicon dioxide. According to the method, the blowing parameters in the early
smelting stage are dynamically adjusted according to the
excess oxygen content in the slag, the oxidizability of the slag in the early
smelting stage is reasonably controlled, meanwhile, the "iron inclusion in the slag" phenomenon caused by the over-strong
molten pool stirring due to the over-high blowing intensity is effectively avoided, and therefore the iron loss in the slag when the slag is discharged in the early stage is effectively reduced.