The results show that, when 4%steelmaking sludge was added to pelletized material, the pellet quality is uninfluenced and the bentonite requirement and the pelletizing cost were decreased.

• 结果均表明,配加4%25左右的炼钢污泥对球团矿产质量无不利影响,而且能降低膨润土用量和球团矿生产成本。