| 摘要 |
A direct current arc furnace composed of a boiler covered with a vault, a coaxially located shaft, negative electrodes, and a tank fitted with a positive furnace hearth electrode and the bottom outlet to release metal. It is characterised in that the shaft is composed of the upper part (6), generally in the form of a cone, and of a bottom part (7), generally in the form of a prism, preferably a regular prism, where the bottom part (7) of the shaft is fitted with sets (8) of mobile fingers. |
