Influence of Partially Reduced Pellets on Technical and Economic Features of Blast-Furnace Smelting

Considering the modern level of technological development, the efficiency for making cast iron in blast furnaces has reached its limit. The technology for improving the productivity of blast-furnace, considered in this article, consists in using high-strength partially reduced iron ore pellets, which allows cutting back the consumption of furnace coke by rapid reduction and, as a consequence, cutting back greenhouse gas emissions. According to available data, 1% of partially reduced charge pellets saves 46 cents, whereas an additional percent of metallization saves 13 cents.