| 摘要 |
FIELD: ferrous metallurgy. SUBSTANCE: method for production of particles of sponge iron and liquid pig iron from lump iron ore includes supply of iron ore to reactor of direct reduction, reduction with high-temperature reducing gases into sponge iron and subsequent smelting in reducing atmosphere produced by introduced carbon and blown oxygen-containing gas. At least, one part of reducing gas after cooling down to temperature required for reduction is introduced into the reactor reducing zone. Considerable part of carbon and reducing gas is produced from the mixture of hydrocarbon-containing synthetic materials, and petroleum coke and/or coke, for instance, coke fines. Reducing gases, at least, partially are produced by cracking of synthetic materials and thermal coke gasification. EFFECT: higher efficiency. |
