APPARATUS FOR PRODUCING FERROUS OR NON-FERROUS METALS FROM SELF-FLUXING OR NOT, SELF-REDUCING AGGLOMERATES OR ORES

摘要

Process and apparatus for producing ferrous or non-ferrous metals from a charge formed by self-reducing agglomerates (comprising pulverized ores, carbonaceous material plus a binder) consisting the apparatus of a shaft furnace, comprising a cylindrical or conical shaft (3), having, at the top portion thereof, loading gates or devices (1) and an outlet for gases through a chimney (19) or a chamber leading the same to heat regenerators (9) to pre-heat blown-in air and also having one or more rows of tuyeres (15) for blowing air; and a cylindrical or conical hearth (5) having a diameter greater than that of shaft (3) by an amount sufficient for positioning fuel feeders (4) directly over a fuel bed; and on the lower part, one or more rows of tuyeres (13) distributed so as to blow air oxygen enriched or not and injecting or not liquid gaseous, or pulverized fuels, this same apparatus being capable of melting 100% metallic charges of any metal and alloys or different proportions of metallic forms and self-reducing agglomerates.