Mill arrangement with temporary storage vessel and a process of

Details Mill arrangement with temporary storage vessel and a process of Mill arrangement with temporary storage vessel and a process of

1987-08-04

1989-09-19

Andrews, Melvyn J.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 46, 75 5923, 266142, 266160, C21B 1314, F27B 1904

Patent

active

048677876

ABSTRACT:
In operating a mill including a blast furnace and a steel converter, it is difficult to mutually adapt the operations of the blast furnace and of the converter in a flexible way. When using scrap as a coolant in the refining process, undesired accompanying elements are introduced into the metal melt.
The invention consists in that, instead of a blast furnace, a direct reduction plant in combination with a meltdown gasifier are provided as the pig iron source. This aggregate is operated in combination with a single steel converter. The direct reduction plant, on its discharge side, is connected both with the meltdown gasifier and with the steel converter via sponge iron transporting devices. The meltdown gasifier communicates with the steel converter via a transport line for molten pig iron. As the solid charge in the refining process sponge iron is exclusively used.

REFERENCES:
patent: 4244732 (1981-01-01), Brauns
patent: 4419128 (1983-12-01), Nakagawa et al.
patent: 4578110 (1986-03-01), Price-Falcon
patent: 4690387 (1987-09-01), Rockenschaub et al.
Direct Reduced Iron, TN707 D 56, Aug. 1982 pp. 115-118.

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