【作者】 杨利彬； 曾加庆； 王杰； 林腾昌；

【Author】 Yang Libin;Zeng Jiaqing;Wang Jie;Lin Tengchang;Metallurgical Department,Central Iron and Steel Research Institute;

【机构】 钢铁研究总院冶金工艺研究所；

【摘要】 针对100t转炉高效双渣脱磷工艺,经过热力学及动力学分析及试验得出工艺制度。为了保证冶炼过程脱磷动力学条件,经过系统分析对原有底吹系统进行改造,改造后底吹供气强度达到0.25Nm~3/t·min。工艺优化后,有效提高了冶炼前期及过程脱磷效率,冶炼终点钢水碳氧积由0.00335降低到了0.00283,避免了钢水过氧化,降低有效石灰加入量25%,渣量减少20.12%。更多还原

【Abstract】 Aiming at the effective dephosphorization technique of 100 t converter, based on thermodynamic and dynamical analysis and experiments, relative technique has been developed. Based on evaluation, the bottom system has been optimized. The bottom blowing intensity has been inproved to 0.25Nm~3/(t·min). The results show that the dephosphorization raised effectively,the average measured w(C)·w(O) at endpoint of whole campaign reduced from 0.00335 to 0.00283, lime comsumption reduced 25%,and the slag weight reduced 20.12%.更多还原