Dry collection of metallized fines

Details Dry collection of metallized fines Dry collection of metallized fines

1981-02-18

1982-11-09

Andrews, M. J.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

55 1, 55429, 75 35, 16510416, 266155, 266156, 266157, C22B 702

Patent

active

043583105

ABSTRACT:
A method and apparatus for the dry collection of metallized fines from a direct reduction furnace cooling zone in which cooling gas removed from the cooling zone passes through a dust collector and the removed dust is cooled in a fluidized bed, the fluidizing gas being recirculated through an indirect cooler. The process is continuous and the fines are collected at a sufficiently low temperature for easy handling. The apparatus includes a hot gas cyclone in the cooling gas withdrawal line connected to a fluidized bed cooler, a conduit for withdrawing fluidizing gas from the fluidized bed cooler passes through a second cyclone dust collector then through an indirect cooler and returns to the fluidized bed cooler. Cool fines are withdrawn from the fluidized bed cooler into a collector.

REFERENCES:
patent: 2915365 (1959-12-01), Saussol
patent: 4169533 (1979-10-01), Rubio
patent: 4207093 (1980-06-01), Pastorino et al.

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