针对重庆钢铁集团近年来增加澳矿使用量后，炉渣中Al2O3含量的增加对炉渣流动性的不利影响，对重钢高炉的炉渣性能进行了试验研究。以重钢高炉现场渣为基础，利用旋转黏度计测试了Al2O3质量分数为12%、MgO质量分数为8%、TiO2质量分数为5%、碱度为1.07～1.50时，CaO-SiO2-Al2O3-MgO-TiO2渣系黏度变化情况；并测量了不同TiO2含量时炉渣黏度变化情况。研究结果表明：在当前碱度范围内，随着二元碱度增加，炉渣黏度降低，当二元碱度超过1.35时，黏度降低趋势变平缓；炉渣中加入适量TiO2能降低黏度，改善流动性。
More and more Australian iron ore had been consumed in Chongqing Iron and Steel Group Co., Ltd. in recent years and consequently the slag property had been changed, especially the increased value of Al2O3 in slag has defect on slag fluidity.The viscosity in CaO-SiO2-Al2O3-MgO-TiO2 slag that add chemical agents to industrial slags has been mea-sured at different R and the mass percent of Al2O3, MgO, TiO2 were fixed at 12%, 8%, 5%respectively. In addition the slags viscosity at different cotent of TiO2 has been measured. The results show that moderate content of TiO2 can reduce viscosity, and viscosity decreasing with basicity increasing at current scope, the viscosity decreasing trend flattens when basicity exceed 1.35.
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