巴西萨玛柯精粉在宝钢的试验研究

Study on the Samarco pellet feed in Baosteel

通过采用X射线衍射、扫描电子显微镜和矿相显微镜以及微型烧结等方法对巴西萨玛柯精粉矿进行试验研究。萨玛柯精粉品位较高,Si O2、Al2O3和磷的含量均较低;粒度组成细;含铁矿物主要为赤铁矿,脉石矿物主要是石英;结构疏松。烧结杯试验和工业试验结果表明,在一定的使用比例范围,通过少量提高生石灰使用比例和燃料消耗,烧结产量、质量指标可以保持在较好的水平。

By means of X-ray diffraction,scanning electron microscope,mineral phase microscope and micro-sintering,the performance of the Samarco pellet feed was studied. Fe content of Samarco pellet feed is higher and the silicon,alumina and phosphorus content is lower. The size distribution is finer. It mainly contain hematite and quartz. Microstructure is loose. The sintering pot test and industrial test were carried out. The results show that by slightly increasing the use ratio of lime and fuel consumption,the Samarco pellet feed can meet the needs of Baosteel in a certain extent.