| 摘要 |
<p>A method and apparatus for regulating an arc discharge furnace having a lining, a plurality of electrodes disposed above a bath of conductive material, an adjustable transformer for applying to each electrode a voltage which causes an arc current proportional to the applied transformer voltage to flow between the electrode and the bath, a device for varying the voltage applied by the transformer to each electrode, and a device for varying the vertical spacing between each electrode and the bath. Desired values for a maximum of two of the following parameters are selected: the voltage of the arc current produced by one electrode; the arc current produced by the one electrode; the power of the arc produced by the one electrode; a parameter which is proportional to the wear caused to the furnace lining by the arc produced by the one electrode; and a correcting variable for the voltage applied to the one electrode by the transformer. The voltage varying device and the electrode spacing varying device are each controlled on the basis of a selected parameter.</p> |
