Study on the Reduction Swellability of Panzhihua V-Ti bearing magnetite Concentrate Pellets

The effect of the binder content and the calcination atmosphere on the reduction swellability of the pellets is monitored by the on-line pellet morphology detector.The research results show that by adding a small amount of binder(the bentonite content is less than 1.5%) to the Panzhihua V-Ti bearing magnetite concentrate,the resulting pellets could meet the requirements of the blast furnace after magnetizing roasting in temperature of 1 100~1 200℃,with a maximum linear expansion rate of less than 5% during reduction.The pellets which are not pulverized contribute to the smooth operation of blast furnace.