Title: Process and apparatus for directly reducing iron to produce heat
Application Number: 87102144 Application Date: 1987.03.17
Publication Number: 1013462 Publication Date: 1987.09.23
Approval Pub. Date: 1991.09.04 Granted Pub. Date: 1991.09.04
International Classifi-cation: C21B13/02
Applicant(s) Name: Yersa Co. Address:
Inventor(s) Name: Padrick W. Mike
Attorney & Agent: WANG ZHONGZHONG HE GUANYUAN
Abstract:
    A method and an apparatus for the gaseous reduction of particulate iron ores is disclosed, wherein the reduced ore, commonly called DRI (Direct Reduced Iron) or sponge iron, is treated in a vertical shaft moving bed furnace and discharged from said furnace in solid particulate form at high temperature, e.g. above 500 DEG C. The shaft furnace is of the type wherein a bed of particles descends by gravity through said furnace which has an upper section where ore pellets, lumps, or the like are reduced by reaction with a hot reducing gas, and a lower section of a downwardly tapering, preferably, in a generally conical shape, which converges to an outlet discharge orifice of smaller cross sectional area than the rest of said furnace.
Time: 5
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