iron pellet reduction in sponge iron kilns crusher tree ice - Direct reduced iron
Keywords: Tunnel Kiln, Iron ore-coal composite pellets, Sponge iron, Thermal efficiency, Carbon utilization efficiency, Percentage metallic iron . 1. INTRODUCTION The tunnel kilns are mostly used by the ceramic industries for heating refractory and ceramic products [1-2]. In the year 1908 use of tunnel kiln started for iron oxide reduction. ThisTunnel kiln is fired with producer gas from coal gasification. Reduction temp. is 1140 -1200 degree and reduction time -42 hours. Sponge iron produced from staggers is in briquette from for further end use. Any removal of impurities in above sponge iron could be carried out by Magnetic separation.