Abstract：Based on the material balance and thermal balance theory，the lime consumption forecast model in single slag dephosphorization process is designed，using visual basic software and the theoretical results are modified by the date from steel plant. By comparing the forecast lime consumption with the date from steel plant， the errors in the range of 20% and less than 10% account for 93.4% and 82.7%，respectively. The effect of initial Si and P content and End-P content on lime consumption are analyzed through the model. The results show that the lime consumption increases with the increase of initial Si and P content and the decrease of End-P content. Lime consumption increases significantly when initial P content exceeds a critical value. The critical P content in hot metal is 0.15%， 0.14%， 0.13% and 0.12%， respectively， when the initial Si content is 0.2%， 0.4%， 0.6% and 0.8%， respectively. When the End-P content is less than 0.01%， the lime consumption increases significantly， and the economic condition is poor. When the End-P content is less than 0.007%，the End-P content is almost unchanged with the increase of lime consumption. Thus，the single slag process is not suitable for the production of ultra-low phosphorus steel.
张思源，包燕平，林路，郭建龙，王敏. 单渣脱磷石灰消耗量预报模型的应用与分析[J]. 中国冶金, 2016, 26(11): 21-25.
ZHANG Si-yuan，BAO Yan-ping，LIN Lu，GUO Jian-long，WANG Min. Application and analysis of lime consumption forecast model in single slag dephosphorization. China Metallurgy, 2016, 26(11): 21-25.
2016, Vol. 26 
