采用新型粘结剂代替膨润土,用正交试验法进行预热和焙烧试验,得到最佳预热和焙烧工艺参数。在最佳工艺参数条件下,进行了扩大验证试验。结果表明:配加新型粘结剂B与配加膨润土比较,相同配比条件下,生球性能更好,成品球强度更高,低温还原膨胀指标更佳。新型粘结剂可以完全替代膨润土,达到提高球团矿强度和节能的效果。 A new type of binder was used instead of bentonite. The preheating and roasting tests were carried out by orthogonal test to get the best preheating and roasting process parameters. Under the optimum process parameters, the extended verification test was carried out. The results show that with the addition of new binder B and bentonite, the properties of green pellets are better under the same compounding ratio, the strength of finished pellets is higher and the index of low temperature reduction and expansion is better. The new binder can completely replace bentonite, to improve the pellet strength and energy saving effect.