METHOD FOR DRYING DUST OR FINE ORE

摘要

PROBLEM TO BE SOLVED: To use a waste plastic as a heat source for a drying oven of dust or fine ore and use an unburned char as a reducing agent. SOLUTION: Hot air is made by burning a waste plastic at 700-1,100 deg.C, and used as a heat source for drying apparatuses 2 and 6. An unburned char is collected in dust separators 3 and 7, mixed in dust or iron ore after drying and used as a reducing agent.