Improvement of the Process of Conducting Arc-Free Ferronickel Melting in a Six-Electrode Furnace

Abstract

For three-phase six-electrode submerged-arc furnaces, a technical solution has been proposed that allows to determine the contour of an electrode with an arc discharge by analyzing the harmonic spectrum of offset voltage of zero point, created artificially. Researches carried out on an industrial six-electrode furnace which melts ferronickel, have confirmed the possibility of using the proposed method for monitoring and controlling the operating mode of the furnace.