中文摘要：

为了更好地利用各种铁矿粉,使用“座滴法”研究了TiO_2含量对含钛铁矿粉的熔化行为。结果表明：试样收缩过程主要分为慢速和快速两个阶段;随着TiO_2含量的升高,除TiO_2含量为1%外,铁矿粉特征熔化温度呈现升高的趋势;TiO_2含量为1%时,铁矿粉特征熔化温度较低;随着TiO_2含量的升高,铁矿粉熔化时间呈现增加的趋势;TiO_2含量过高不利于降低烧结燃耗,综合考虑含钛铁矿粉特征温度和熔化时间,TiO_2含量应控制在3%以内。

英文摘要：

In order to make better use of all kinds of iron ores, the effects of TiO2 content on melting be- havior of titanium-containing ilmenite powder were studied by the seat drop method. The results showed that the sample shrinkage process was divided into two stages ： slow and fast steps. The melting tempera- ture of iron ore powder showed a increasing trend with the increase of TiO2 content. However, the melting temperature of iron ore powder was lower when the TiO2 content was 1%. The melting time of iron ore powder showed an increasing trend with the increase of TiO2 content. Sintering fuel consumption can not be reduced when TiO2 content is too high. Taking into account the characteristic temperature and melting time of the ilmenite powder,the TiO2 content should be controlled less than 3%.