title: Analytical research of the reduction processes in blast furnace at powder coal injection
abstract: The objective of the article is to investigate analytically the alternations in reduction processes indices in a blast furnace at partial replacement of coke with powder coal. To compensate the reduced gas permeability of the charge materials column at powder coal injection the share of direct mixed supplies in charging cycles was decreased. The performed comparison revealed that the indices of reduction processes in the investigated periods turned out to be close enough. It was found out that i
journal: Reporter of the Priazovskyi State Technical University Section Technical sciences