Direct current arc furnace operation involves feeding a gas through the melt to raise the surface and reduce the distance to the electrode

摘要

A process for operating a direct current arc furnace comprises feeding flushing and/or process gas through nozzles or stones in the floor of the container that holds the melt (5). The gas is supplied with an intensity that causes the melt surface to build up, reducing the distance between the melt and the electrode, so the arc is deflected to the side of the built-up area.