Analysis of Heat Loads and Lining Wear of Blast-Furnace Crucible of Various Designs

Abstract

The article presents the results of analysis of thermal operation and hearth lining melting of blast furnaces of various designs on the basis of information from the system of monitoring of thermal operation and hearth lining melting – mathematical model “Hearth” developed in Iron and Steel Institute NAS of Ukraine (ISI NASU). Realization of continuous monitoring of the hearth melting in blast furnaces made it possible to estimate the effect of using “ceramic cup” in terms of the value of heat losses of the hearth and coke consumption for their compensation. It is established that the value of specific heat loss per unit volume of blast furnace in blast furnaces with a “ceramic cup” ~ 0,4-0,7 kW/m3, in blast furnaces without it ~0,9-1,1 kW/m3. Ceramic cup gives savings of about 1 kg/t-HM of coke.