| 摘要 |
An iron production device includes material charging chutes end portions of a furnace, electrodes in a central region, and secondary combustion burners in an upper portion having stepped portions descending from both end portions to the electrodes. Raw material layers inclined downwardly to lower portions of the electrodes are formed by charging carbonaceous material from the chutes, and metal agglomerate raw material layers are formed thereon. Molten iron is produced by sequentially melting lower end portions of the metal agglomerate raw material layers by arc heating at the electrodes, whilst blowing oxygen from the secondary combustion burners to combust CO-containing gas generated from the metal agglomerate raw material layers, while the metal agglomerate raw material layers descend along the slopes of the raw material layers, and are heated by the radiant heat of the combustion. |
