Research and Application on Improving Pelletizing Degree of Green Balls at Oxidized Pellets Production Line in KISC

The production line of oxidized pellets in KISC is designed with 1.2 Mt/a output capacity.Due to complex conditions of raw materials and some defects of process design,the pelletizing degree of green balls just attained to about 30% at the beginning of the startup,which brings the difficulties to improve pellet yields and technical parameters.Thus,KISC and Central South University have fully made experimental researches and practical investigations,and successively carried out a series of technology reformations and process improvements for the four steps,which contributed to achieving the remarkable effects.Consequently,the pelletizing degree of green balls has been increased to over 60%,and also the designed target output has been achieved for the production line of oxidized pellets in KISC.