The influence of technology of pulverized coal to the height of the lining and the thermal performance of the peripheral zone blast furnace number 4 "Zaporizhstal" - A. L. Chajka; V. V. Lebed; A. A. Zherebetskij; K. S. Tsjupa; S. V. Goman; A. P. Fomenko (Fundamental and applied problems of ferrous metallurgy, 2015)