Open AccessInfluence of transition modes of blast-furnace smelting to change the temperature of the cooling-system plates
Author(s) -
V. V. Horupakha,
Yu. S. Semenov,
E.I. Schumelchyk,
С. В. Ващенко,
E. D. Vyshinskaya
Publication year - 2018
Publication title -
metallurgičeskaâ i gornorudnaâ promyšlennostʹ
Language(s) - English
Resource type - Journals
eISSN - 2077-0545
pISSN - 0543-5749
DOI - 10.33101/s065456789
Subject(s) - blast furnace , smelting , thermocouple , pulverized coal fired boiler , tuyere , coal , water cooling , thermal state , intensity (physics) , cast iron , metallurgy , thermal , materials science , waste management , engineering , mechanical engineering , composite material , thermodynamics , physics , quantum mechanics
Purpose. Estimation of the influence of non-stationary blast-furnace smelting on the thermal state of the cooling system.Methodology. Analysis of changes in the meanings of thermocouples installed in the body of the cooling system plates, under different operating conditions of the blast furnace.Results. The study of the influence of transitional modes of blast-furnace smelting on the temperature change of the cooling-system plates at the joint use of natural gas and coal-pulverized fuel, under conditions of a low-intensity blast furnace operation and using pulverized coal with a consumption of more than 110 kg/ton of pig iron.Findings. The peculiarities of the influence of transitional modes of blast-furnace smelting on the thermal state of the cooling system are established: incl. with various fuel additives for blasting and with the operation of the furnace with reduced intensity.Practical value. The results presented in the article can be used in the design of the cooling system, as well as in the selection of rational operating modes of the blast furnace.Keywords. blast furnace, PCI technology, natural gas, cooling-system plates, thermocouple.