Direct current melting furnace - having controlled arc deflection as required during the melting cycle.

摘要

Appts. comprises a direct current smelting furnace having top electrode with relative return lines, a number of bottom electrodes (11) in the furnace hearth (12) arranged as electrode assemblies, each assembly with a dedicated supply line transformer (16) and thyristor rectifier assembly (17) controlling voltage (26) current (24), and firing angle (23). The supply lines and return flow lines are screened to minimise the external magnetic field effects.