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以CaO-SiO2-FeO三元渣系为基,利用正规溶液模型计算了不同碱度、炉渣组分对于脱磷转炉内磷分配比和终点磷含量的影响规律;同时,采用Factsage软件计算了不同脱磷渣系的液相线温度,考察了添加不同炉渣组元对于渣系液相线温度的影响规律。综合理论计算结果,得到脱磷转炉适宜的成渣路线为铁质成渣路线,脱磷初渣成分为15%CaO-44%SiO2-41%FeO,中期渣成分为53%CaO-25.5%SiO2-21.5%FeO,后期固磷渣成分为63.6%CaO-30.3%SiO2-6.1%FeO。可为脱磷转炉的生产操作提供参考。
Based on the CaO-SiO2-FeO ternary slag system, the effect of different basicity and slag components on the phosphorus distribution ratio and the end-point phosphorus content in the dephosphorization converter was calculated based on the normal solution model. Meanwhile, Factsage software was used to calculate the difference The liquidus temperature of dephosphorization slag system was investigated. The effect of adding different slag components on the temperature of slag liquidus was investigated. According to the results of the comprehensive theoretical calculation, the suitable slag-forming route for the dephosphorization converter is the iron-based slag-forming route. The primary dephosphorization slag composition is 15% CaO-44% SiO2-41% FeO and the medium slag composition is 53% CaO-25.5% SiO2 -21.5% FeO, and the final phosphorous-fixing slag is 63.6% CaO-30.3% SiO2-6.1% FeO. For dephosphorization converter can provide reference for the production operation.