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为了改善脱磷,在实验室和工业转炉的基础上开展了一些试验.结果表明,在顶底吹条件下,搅拌强度、碳磷氧化反应转化温度、金属液碳含量和炉渣成分对脱磷有明显影响.用试验数据建立了一个包括碳含量和搅拌因素在内的磷分配比公式,并验证了一个脱磷反应速率方程.在考察熔池氧化性的同时,提出了一个支配铁氧化的吹炼指数来调整氧在炉渣和金属液之间的分配.在实际操作中,通过控制顶底吹条件和炉渣成分使脱磷和熔池中铁的过氧化均获得改善.
In order to improve the dephosphorization, some experiments were carried out on the basis of laboratory and industrial converter.The results showed that under the top and bottom blowing conditions, the stirring intensity, the conversion temperature of phosphorus and phosphorus oxidation, the carbon content of liquid metal and the composition of slag on dephosphorization A significant influence was obtained.An experimental data was used to establish a formula for phosphorus distribution including carbon content and mixing factors and a dephosphorization reaction rate equation was established.At the same time, Refining index to adjust the oxygen distribution between the slag and the molten metal.In practice, dephosphorization and iron peroxidation in the molten pool are improved by controlling top and bottom blowing conditions and slag composition.