Arrangement for recovering molten pig iron or steel pre-products

Details Arrangement for recovering molten pig iron or steel pre-products Arrangement for recovering molten pig iron or steel pre-products

1989-08-28

1990-09-11

Andrews, Melvyn J.

Metallurgical apparatus

With means treating or handling gases exhausted by treating...

By means recycling exhaust gas

266172, 266160, 266183, F27B 1508

Patent

active

049555871

ABSTRACT:
There is disclosed a process of recovering molten pig iron or steel pre-products from lumpy iron-oxide containing charging substances. The charging substances are reduced to sponge iron in a direct reduction zone, the sponge iron is smelted in a meltdown gasifying zone under supply of carbon carriers and oxygen-containing gas forming a coal fluidized bed, and CO and H.sub.2 containing reduction gas is produced, which is injected into the direct reduction zone and reacted there. For the commercial utilization of low-quality scrap grades, such as, e.g., automotive scrap,

REFERENCES:
patent: 4007034 (1977-02-01), Hartwig et al.
patent: 4111687 (1978-09-01), Syska
patent: 4317677 (1982-03-01), Weber et al.
patent: 4448402 (1984-05-01), Weber et al.
patent: 4566902 (1986-01-01), Sulzbacher

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