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使用RTW-10型熔体物性综合测定仪,测定CaO-SiO2-MgO-Al2O3-TiO2渣系粘度随温度的变化,并计算其熔化性温度,研究渣系高温冶金性能.结果表明,渣中TiO2含量由1.0%升高至2.2%时,炉渣的熔化性温度和粘度均降低;随渣中Al2O3含量的提高,炉渣的熔化性温度上升,炉渣粘度增大;在高温区,炉渣粘度小于0.7 Pa?s,炉渣仍具有良好的流动性.MgO含量由8.5%升高至10.5%时,熔化性温度逐渐降低,炉渣粘度变化较小.对于工业生产中炉渣TiO2含量较低的高炉,可考虑增加含钛原料的使用,以进行护炉操作.
The change of viscosity of CaO-SiO2-MgO-Al2O3-TiO2 slag system with temperature was measured by RTW-10 melt physical property analyzer, and its melting temperature was calculated to study the metallurgical properties of slag system. When the content increased from 1.0% to 2.2%, the melting temperature and viscosity of the slag decreased. With the increase of Al2O3 content in the slag, the melting temperature of the slag increased and the viscosity of the slag increased. In the high temperature zone, the slag viscosity was less than 0.7 Pa ? s, the slag still has good fluidity.MgO content increased from 8.5% to 10.5%, the melting temperature gradually decreased, the slag viscosity changes less for the industrial production of slag with lower TiO2 content in the blast furnace can be considered to increase Use of titanium-containing materials for furnace protection operations.