Using Coal-Dust Fuel in Ukrainian and Russian Blast Furnaces

Abstract

Over the past 25 years, 130 blast furnaces, producing around 300 million t/yr of hot metal, have successfully introduced coal-dust fuel, along with improvements in coke quality and other compensatory measures. As of 2007, smelting with coal-dust injection at the rate of 200–260 kg/t of hot metal was being introduced worldwide, with the replacement of up to 40– 50% of the coke employed and reduction in coke consumption by 250–300 kg/t. This is only the beginning, as indicated by theoretical analysis and the change in coal-dust and coke consumption in the developed nations over the last 10–15 years