METHOD AND APPARATUS FOR RAPID REDUCTION OF IRON OXIDE IN A ROTARY HEARTH FURNACE

摘要

A method and apparatus (34) for producing direct reduced iron from dry compacts composed of iron oxide and carbonaceous material by feeding compacts no more than two layers deep onto a hearth (36) and removing all the volatiles and metallizing the compacts by exposing said compacts to a radiant heat source at a temperature of from about 1315 to about 1430 degrees C for a total time period of about four to ten minutes and partially cooling the compacts while discharging them from the hearth (36).