Apparatus for directly making liquid pig-iron from coarse iron o

Details Apparatus for directly making liquid pig-iron from coarse iron o Apparatus for directly making liquid pig-iron from coarse iron o

1983-05-12

1984-05-15

Andrews, M. J.

Metallurgical apparatus

Means for treating ores or for extracting metals

By means applying heat to work, e.g., furnace

75 38, 414197, 414213, F27B 120

Patent

active

044484020

ABSTRACT:
A device is described for directly making liquid pig-iron from coarse iron ore. Hot sponge-iron particles are directly conveyed by a worm conveyor (17) through a communicating passage (19) from a direct-reduction blast-furnace shaft (2) into a smelter-gasifier (1), and a stream (24) of gas flows, after cooling to below 950.degree. C., in counter-current to the sponge-iron particles, from the smelter-gasifier (1) to the blast-furnace shaft (2), this gas stream having a volumetric flow-rate not more than 30 percent of the total reduction-gas flow reaching the blast-furnace shaft (FIG. 1).

REFERENCES:
patent: 2889219 (1959-06-01), Halley
patent: 3704011 (1972-11-01), Hand et al.
patent: 4005857 (1977-02-01), Colautti
patent: 4288217 (1981-09-01), Christini et al.

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