| 摘要 |
The invention relates to a method for operating an alternating-current electric arc furnace, to a device for performing the method, and tp an alternating-current electric arc furnace having such a device. During the operation of an alternating-current electric arc furnace (1), which comprises at least one electrode (3a, 3b, 3c) for producing a melt, vibrations are measured at a wall (2a) of a furnace vessel (2), whereby a slag height (Hrel) of the melt is determined. A rapid reaction to the change in the slag height is made possible by adjusting the arc length of the at least one electrode (3a, 3b, 3c) in the case of deviations of a measured actual value (A, B, C) of the slag height (Hrel) from a target value (S). |
