Process for supplying a blast furnace with air enriched in oxyge

Details Process for supplying a blast furnace with air enriched in oxyge Process for supplying a blast furnace with air enriched in oxyge

1992-06-09

1993-09-14

Andrews, Melvyn J.

Specialized metallurgical processes, compositions for use therei

Processes

Producing or treating free metal

266141, 266160, C21B 900, C21B 500

Patent

active

052444899

ABSTRACT:
There is produced by an air distillation apparatus (4) a desired fraction of air from the stream of air leaving at least one blower (3) of the blast furnace, and there is sent to the blast furnace the oxygen produced by this distillation apparatus. The distillation apparatus comprises an air/liquid oxygen mixing column which operates at about 1 bar above the delivery pressure of the blower (3) and which directly produces the oxygen for enriching the air.

REFERENCES:
patent: 3304074 (1967-02-01), Atherton
patent: 4022030 (1977-05-01), Brugerolle

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