| 摘要 |
The invention relates to a method for processing steel slags and iron carriers such as, e.g., electric furnace slags, converter slags, fine ores, dusts from the production of steel and millscale, for recovering pig iron and environmentally safe slags. A molten slag bath and a molten iron bath are used at a volume ratio of between 0.5:1 and 1.5:1 and carbon carriers are introduced into the bath and hot air is top-blown. From the starting slags and iron carriers, a mixed slag having a basicity CaO/SiO2 of between 1.2 and 2.5 is adjusted, which is transferred into a hearth-type furnace or a ladle, wherein hot air is top-blown for afterburning at a post-combustion degreeof between 0.70 and 0.85 the CO formed from the carbon in the bath. The hot offgases from the furnace or the ladle are drawn off tangentially to the axis of the mouth of the hot air feeding lance.
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