PRODUCTION OF REDUCED CHROMIUM ORE PELLET BY ROTARY KILN AND DEVICE USED THEREIN

摘要

PURPOSE: To obtain the effective reduction yield of reduced chromium ore pellets in a rotary kiln. ;CONSTITUTION: The stagnation time of the pellets is shortened in an oxidation zone of 1000°C in the rotary kiln and the stagnation time of the pellets is prolonged in a high-temp. reduction zone of ≥1000°C, by which the pellets are effectively reduced. The pellet discharge end of the rotary kiln device is provided with dike bricks 5. In addition, the inside wall corresponding to the high-temp. reduction zone of ≥1000°C is provided with spiral bricks 4.;COPYRIGHT: (C)1994,JPO&Japio