Reducing Graphitized-Electrode Consumption by Sealing the Electrode Gaps in-the Furnace Roof

摘要

The electrode gaps in the roof of a 120-t arc smelting furnace are sealed gas-dynamically, by thejet-injection principle. Laval nozzles are employed; the refractory dosing units in the intermediate ladle of thecontinuous-casting machine serve as mixing chambers.