CAJ | 학술논문

通过对转炉喷吹CO2+O2混合气体的热力学分析,结合实验室模拟转炉吹炼末期喷吹CO2+O2实验结果,探讨了在顶吹转炉中应用CO2+O2进行脱碳抑氧的可行性。得出结论,混合气体中CO2比例增大,碳氧积降低,枪位对碳氧积的影响减弱,但回磷量增加,当CO2比例增大到CO2：O2=1：1时,顶吹转炉碳氧积可控制在0.23×10-6~0.25×10-6,平均回磷量0.001%,混合气体中CO2最大理论比例可增加到79.1%。
통과대전로분취CO2+O2혼합기체적열역학분석,결합실험실모의전로취련말기분취CO2+O2실험결과,탐토료재정취전로중응용CO2+O2진행탈탄억양적가행성。득출결론,혼합기체중CO2비례증대,탄양적강저,창위대탄양적적영향감약,단회린량증가,당CO2비례증대도CO2：O2=1：1시,정취전로탄양적가공제재0.23×10-6~0.25×10-6,평균회린량0.001%,혼합기체중CO2최대이론비례가증가도79.1%。
Based on the thermod ynamic analysis of mixture gas including CO2 and O2 blown into BOF together with the experimental results of blowing mixture gas including CO2 and O2 into simulative converter at the final blowing stage in laboratory, the feasibility of blowing CO2 and O2 into the top blown converter for decarburization and control of oxygen is discussed. It is concluded that the product of carbon and oxygen reduces and the influence of the lance location on the prod-uct weakens as the ratio of CO2 in mixture gas increases, but the quantity of rephosphoration in-creases. when the ratio of CO2 in mixture gas increases to the 1 to 1 degree of CO2 and O2, the product of carbon and oxygen can be controlled between 0.23 ×10-6 and 0.25 ×10-6 in top blown converter and the average quantity of rephosphoration 0.001% while the theoretical maximum ratio of CO2 in mixture gas can increase up to 79.1%.