| 摘要 |
<p>1. Method of reducing ores using a drying and/or comminuting apparatus, a suspension gas preheater for the preheating, calcination and prereduction of the ores, furthermore a complete reduction furnace and an agglomeration means, reducing agents being introduced into a furnace exhaust gas conduit leading to the preheater, characterised in that the prereduced ores after leaving the suspension gas preheater are hot briqueted and thereafter completely reduced in an electric furnace, at least a protion of the electric furnace exhaust gases being supplied to the suspension gas preheater and the preheater exhaust gases being supplied to the drying and/or comminuting apparatus.</p> |
