METHOD FOR DETERMINING A TIME FOR CHARGING AN ELECTRIC ARC FURNACE WITH MATERIAL TO BE MELTED, SIGNAL PROCESSING DEVICE, MACHINE-READABLE PROGRAM CODE, STORAGE MEDIUM AND ELECTRIC ARC FURNACE.

摘要

The invention relates to an electric arc furnace, to a signal processing device, to a storage medium, to a machine-readable program code, and to a method for determining a time for charging, in particular recharging, an electric arc furnace (1) with material to be melted (G), in particular scrap, wherein the electric arc furnace (1) comprises at least one electrode (3a, 3b, 3c) for heating material to be melted (G) that is arranged inside the electric arc furnace (1) by means of an electric arc. By detecting a first signal (S) for determining a phase state of an electric arc root on the side of the material to be melted on the basis of a captured electrode current (Ik), by checking whether the first signal (S) exceeds a predetermined threshold value for a predetermined minimum duration, and by ensuring that the time for charging is reached at the earliest when the first signal exceeds the threshold value for the predetermined minimum duration, a state-oriented charging time for the operation of an electric arc furnace can be determined in order to reduce the use of energy, the use of resources, and the production time for a production cycle to reach a tap weight.