Study on Sintering Technology of Manganese Ore Fines Strengthened by Pellet-Sintering Process

The experimentation allowing comparison of manganese ore fines pellet sintering and traditional sintering of manganese ore fines in terms of sintering performance are studied. The results show that, compared with traditional sintering, the pellet-sintering process can significantly reduce the coke level while ensuring the quality of sinter. Pellet sintering required 10.54 kgce/t lower solid fuel rate in total and 26.28 kgCO₂/t lower CO₂ emission rate than traditional one, of which solid fuel consumption and CO₂ emission rate are 88.7 kgce/t and 221.13 kgCO₂/t, respectively. In addition, pellet-sintering products exhibit higher electrical resistivity and a superior tumble index compared to traditional manganese sintered products. Compared with traditional sintering, the electrical resistivity and tumbling index of pellet-sintering products are changed from 30.6 MΩ·m, 51.7% to 49.9 MΩ·m, and 62.5%, respectively. It provides a new method for low-carbon production of manganese ore fines.