| 摘要 |
<p>Disclosed is a method for producing molten metal from a raw material comprising metal oxide agglomerates by reduction and melting in an electric arc furnace smelting operation, by which molten metal is produced from a metal oxide after metal oxide agglomerates are directly reduced and melted with a carbonaceous material in an electric heating and melting furnace. The electric furnace for producing molten metal has a process material recycling capability, where raw material fines are periodically removed through vents or ports without requiring the furnace to be shutdown. The method comprises selectively removing a portion of the raw material from the furnace through a plurality of openings disposed in a sloped bottom portion thereof such that a raw material bed or layer disposed on the sloped bottom portion has predetermined characteristics over time. The plurality of openings are coupled to a plurality of hoppers; and then recycling the portion of the raw material removed from the furnace back to the furnace.T he portion of the raw material removed from the furnace is recycled back to the furnace as part of the raw material bed or layer or as additional bed or layer.</p> |
