一种巴西低铝粉矿在宝钢的试验研究

通过采用X射线衍射、微型烧结等方法对巴西的一种低铝粉矿进行试验研究。该低铝粉矿品位较高,SiO2含量中等,Al2O3和磷含量均较低;粒度组成细;含铁矿物主要为赤铁矿,脉石矿物主要是石英;气孔率较低。烧结杯试验和工业试验结果表明,通过少量提高生石灰粉使用比例等,在一定的使用比例范围内烧结矿产量和质量指标可以保持在较好的水平。

Study on sinter feed low alumina of Brazil in Baosteel

By means of X-ray diffraction and micro-sintering,the performance of the sinter feed low alumina of Brazil was studied.The Fe content of sinter feed low alumina is higher and the silicon content is medium,alumina and phosphorus content is lower.The size distribution is finer.It mainly contain hematite and quartz.Porosity is lower.The sintering pot test and industrial test were carried out.The results show that by slightly increasing the ratio of lime,the sinter feed low alumina can meet the needs of Baosteel in a certain extent.