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采用多功能熔体物性测定仪研究不同条件下TiO_2和TiC对中钛高炉渣流动性能的影响规律,分析高炉不同风口区域的含钛炉渣黏度变化规律。结果表明,在还原性气氛条件下,中钛高炉渣的黏度-温度曲线有明显的转折点,且黏度随TiO_2含量的增加而增加,炉渣熔化性温度随TiO_2含量的增加而升高。中性气氛下,中钛高炉渣的黏度和熔化性温度随TiO_2含量增加均降低。中钛高炉渣的黏度和熔化性温度随炉渣中TiC含量的增加急剧升高。高炉风口区域炉渣中含有的TiC和TiN含量较高,导致该区域炉渣的稳定性差。研究结果可为高炉生产制定合理的中钛高炉渣操作制度提供理论依据。
The influence of TiO_2 and TiC on the flow properties of medium-sized titanium blast furnace slag under different conditions was studied by using multi-functional melt property analyzer. The variation of viscosity of slag containing titanium in different tuyeres area was analyzed. The results show that there is a significant turning point in the viscosity-temperature curve of medium-sized titanium blast furnace slag in reducing atmosphere, and the viscosity increases with the increase of TiO 2 content. The melting temperature of slag increases with the increase of TiO 2 content. Under the neutral atmosphere, the viscosity and melting temperature of medium-titanium blast furnace slag decrease with the increase of TiO 2 content. The viscosity and melting temperature of medium-titanium blast furnace slag increase sharply with the increase of TiC content in slag. The content of TiC and TiN contained in blast furnace tuyere area is relatively high, resulting in poor stability of slag in this area. The results of the study can provide a theoretical basis for making a reasonable operating system of blast furnace slag in blast furnace production.