Suspended magnetic roasting study of fine grained iron ore

摘要

Suspension roasting furnace was used as the reactor of magnetic roasting of fine grained siderite, and the N_2 was used as the conveying gas. The results show that, the siderite ore be roasted at the conditions of gas velocity is 1.7m/s, and the roasted time is 12.35s, according to magnetic separation can obtained iron concentrate grade is 65.04%, and recovery rate is 93.03%.