Novel Method for Stirring BOF Melts in Conjunction with Slag Splashing
The basic oxygen furnace (BOF) is used to convert iron into steel by blowing oxygen into the hot metal to remove carbon and impurities. The metallurgy and efficiency of top oxygen blowing can be improved with the use of bottom stirring. A novel tuyere was developed by Air Products for bottom stirring that can maintain the stirring efficiency of the tuyere for a BOF campaign in conjunction with slag splashing, which can significantly improve the economics and the batch quality, while maintaining the efficiency of the bottom stirring for a much longer campaign.