80t单嘴真空精炼装置脱碳工艺试验研究

Experiment Research on Decarburization Technology of 80 t Single Snorkel Vacuum Refining Equipment

单嘴真空精炼装置是一种新型的炉外精炼设备。采用80 t单嘴真空精炼装置进行了127炉脱碳工业试验,试验结果表明,单嘴真空精炼装置可以获得较好的脱碳效果,试验最低碳质量分数为10×10-6。主要介绍了单嘴精炼装置的试验情况,分析了钢包底吹气体流量、钢包内渣层厚度、钢包自由空间高度、脱碳时间、钢水温度及成分对脱碳效果的影响,并提出了合理的工艺参数。

Single snorkel vacuum refining equipment is a new style refining equipment. One hundred twenty seven heats experiments on decarburization were carried out by 80 t single snorkel vacuum refining equipment. The results indicate that single snorkel vacuum refining equipment can obtain better decarburization effect. The minimum content of carbon is 10 × 10^-6. The experiment process of single snorkel vacuum refining equipment is introduced in this text, and analyzing different inflation factors for results of decarburization. The factors contain flow ration of ladle bottom blowing, thickness of slag in the ladle, free space height of ladle, treating time, temperature and component of steel liquid. The reasonable technology parameters were suggested.