Process for the production of molten pig iron and steel pre-prod

Details Process for the production of molten pig iron and steel pre-prod Process for the production of molten pig iron and steel pre-prod

1985-11-14

1988-03-01

Andrews, Melvyn J.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 38, 75 40, 75 43, C21B 1108

Patent

active

047283602

ABSTRACT:
A process and an arrangement for the production of molten pig iron or steel pre-products from particulate ferrous material as well as for the production of reducing gas in a meltdown gasifier. A fluidized bed of coke particles is formed by the addition of coal and the injection of oxygen-containing gas. In order to ensure a satisfactory mode of operation of the meltdown gasifier even if coal of inferior quality with a high moisture content and a high portion of volatile matter is used, additional heat is supplied to the meltdown gasifier above the feed lines for the fluidized-bed-forming oxygen-containing gas by burning and/or degassing coal particles separated from the reducing gas.

REFERENCES:
patent: 4317677 (1982-03-01), Weber et al.
patent: 4396421 (1983-08-01), Stift et al.
patent: 4409023 (1983-10-01), Weber et al.
patent: 4542889 (1985-09-01), Vuletic
patent: 4588437 (1986-05-01), Kepplinger et al.

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