Study on Melting Rate of Metalized Pellets of Vanadium-bearing Titaniferous Magnetite
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摘要: 采用逐步逼近、快速冷却的试验方法，以熔化时间来反映熔化速率的大小，分别考察铁浴温度、碱度、球铁比以及金属化率对钒钛磁铁矿金属化球团熔化速率的影响。研究结果表明：在一定试验条件下，钒钛磁铁矿金属化球团的熔化速率随铁浴温度、金属化率及球铁比的升高而逐渐增大，且金属化率与熔化时间呈线性关系。碱度趋于1.1时，熔化时间最短，即熔化速率较快，当碱度过低或过高时，熔化时间增加。Abstract: The effect of influencing factors including melting temperature,alkalinity,slag to iron ratio and metalizing rate on the melting rate of metalized pellet of vanadium-bearing titaniferous magnetite was studied. The results indicate that the melting rate increases with the increase of melting temperature, metalizing rate and slag to iron ratio,and there is a kind of linear relationship between metalizing rate and melting time under certain conditions. When the alkalinity approaches 1.1,the melting time is the shortest,which means the melting rate is comparatively fast. However,when the alkalinity is either too high or low,the melting time increases.
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Key words:
- vanadium-bearing titaniferous magnetite /
- metalized pellet /
- melting rate /
- prereducing
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