ABSTRACT
Replacement of metallurgical coke by pulverized coal (PC) injected in blast furnace (BF) tuyeres is a major economical challenge, due to the high price of coke and unfavourable effect of its production for the environment. Theoretical and experimental research of PC burning process under conditions of raceway have been carried out. Among them there are enriching blast with oxygen and its rational use. Recommendations to coal grinding and method of complex compensation for the changes in technological regime have been developed.
