Spouted bed circulating fluidized bed direct reduction system an

Details Spouted bed circulating fluidized bed direct reduction system an Spouted bed circulating fluidized bed direct reduction system an

1995-09-13

1997-10-07

Andrews, Melvyn

Specialized metallurgical processes, compositions for use therei

Processes

Producing or treating free metal

266172, C21B 1302, C22B 514

Patent

active

056743084

ABSTRACT:
A method and apparatus for producing direct reduced iron from iron oxide fines. The iron oxide raw material are passed through a pre-heater having a spouted port then to a primary spouted bed circulating fluidizing bed reactor and then to a bubbling fluidizing bed reactor. The reaction of the strong reducing gas mixture, through this series of beds allows intimate contact between the fines and small particles with the reducing gas to facilitate the direct reduction of the iron oxide fines to metallized iron.

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