Keywords: WielkiPiec.JPG Blast furnace diagram<br />1 Hot blast from Cowper stoves <br />2 Melting zone<br />3 Reduction zone of ferrous oxide<br /> 4 Reduction zone of ferric oxide<br /> 5 Pre-heating zone<br />6 Feed of ore limestone and coke<br /> 7 Exhaust gases<br /> 8 Column of ore coke and limestone<br /> 9 Removal of slag<br /> 10 Tapping of molten pig iron<br /> 11 Collection of waste gases http //commons wikimedia org/wiki/ Image VysokaPec jpg 2008-09-06 Robert Blazek Pezinok Slovakia cs Wikipedia Robert Blazek Pezinok Slovakia Blast furnaces |