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采用攀钢高炉现场渣经过还原 ,获得具有一定钛氧化物还原度的炉渣试样 ,进一步测定样品的粘度和熔化性温度。随着钛氧化物还原度的提高 ,炉渣的粘度和熔化性温度总体呈上升趋势。用矿相显微镜研究了炉渣的显微结构并用图象分析仪对渣中TiC、TiN进行了定量研究。结果表明 ,高钛型高炉渣的变稠还与钛氧化物还原生成的TiC、TiN数量有关。因此高炉冶炼过程中用钛氧化物还原度作为判断和控制钛渣变稠的指标能更准确地反映高炉过程特点。
Using the slag on the blast furnace of Panzhihua Iron and Steel (Group) Co., Ltd. after reduction, a slag sample with a certain degree of reduction of titanium oxide was obtained, and the viscosity and the melting temperature of the sample were further determined. With the increase of titanium oxide reduction, the viscosity and melting temperature of slag generally show an upward trend. The microstructure of the slag was studied by using a phase microscope and the quantitative analysis of TiC and TiN in the slag was carried out with an image analyzer. The results show that the thickening of high-titanium blast furnace slag is also related to the amount of TiC and TiN generated by the reduction of titanium oxide. Therefore, the process of blast furnace smelting titanium oxide reduction as a judge and control of titanium slag thickening index can more accurately reflect the characteristics of the blast furnace process.