Abstract：One kind of new production method of low silica alkaline pellets was studied by adding limestone. It was studied that the effect of limestone as a kind of alkaline flux on the pelletizing process, roasting process and metallurgical performance of pellets. Experimental results showed that the fine grinding limestone could improve green pellet properties. The green pellet drop and the compression performance had different degrees of improvement. With the increase of the ratio of limestone, the intensity of the roasting ball gradually decreased. By raising the roasting temperature, the intensity of the roasting ball can be improved. On the condition of raw material at the present, the reduction swelling of alkaline pellet was higher when the alkalinity was below 1.00, which cannot meet production requirements. The reduction swelling of alkaline pellet can decreased bellow 20% when the alkalinity was above 1.00.
2018, Vol. 28 
