针对高钛型磁铁精矿烧结精粉率高,制粒效果差的问题,进行了不同配比活性灰替代生灰石的实验研究。结果表明,活性灰改善混合料制粒的效果明显,有利于提高烧结过程透气性,加快烧结速度,在700 mm料层情况下,活性灰配比不超过7%时,对提高烧结矿强度效果显著。 In order to solve the problem of high sinter flour content in high-titanium magnetite concentrate and poor granulation effect, experimental studies on the replacement of limestone with different ratios of active ash were carried out. The results show that the active ash can improve the granulation effect of the mixture significantly, improve the permeability of the sintering process and speed up the sintering speed. When the ratio of active ash is less than 7% in the case of 700 mm layer, the effect of improving sinter strength Significant.