Research Progress on Injection Technology in Converter Steelmaking Process

During the converter steelmaking process, gas-slag-metal three-phase emulsification is realized by injecting gas to complete metallurgical tasks such as slagging, dephosphorization, decarburization, and heating. As green and intelligent development of the steel industry progresses, converter steelmaking injection technology is also constantly innovating. In this review, the types and applications of top blowing injection elements, bottom blowing injection elements, and injection the medium are reviewed. Three different types of combined blowing processes are compared. At the same time, the advantages and disadvantages of different bottom blowing elements and injection media are respectively discussed. Finally, based on the research and application status of converter injection technology, the development direction of converter steelmaking injection technology is discussed. Accelerating the innovation of converter steelmaking injection technology, especially the improvement and breakthrough of high efficiency, reductions the environmental burden, and long life technology, will play an important role in promoting the transformation and improvement of the steel industry.

Automated summary

This article reviews the types, applications, and development direction of converter steelmaking injection technology. Gas-slag-metal three-phase emulsification is achieved by injecting gas, which plays a key role in metallurgical tasks such as slag removal, dephosphorization, decarburization, and heating. Accelerating the innovation of converter steelmaking injection technology, particularly the improvement and breakthrough of efficient, environmentally friendly, and long-lasting technology, is crucial for the transformation and improvement of the steel industry.