Method to protect the anode bottoms in batch DC electric arc furnace steel production

摘要

A batch process for an electric arc furnace (1) to manufacture steel (10) includes the steps of providing an empty furnace having a bottom (14) and sides (16) and electrodes (2, 3); adding molten metal to the empty furnace; adding other necessary ingredients through charge openings (26); applying current to provide an arc (4) and supplying oxygen through an oxygen lance (6) to react and melt the contents of the furnace and form a top slag (9) and bottom molten metal/steel (10); and stopping the reaction and pouring out all the slag through a slag tap (5) and molten metal tap (32) to provide an empty furnace for the next batch run.