In recent years some key technologies in BF oxygen-coal injection such as oxygen-coal lance,oxygen supply and safe control,pulverized coal flow rate metering and controlling and mixed coal injection were developed.

• 近年来,研究开发了一系列高炉富氧喷煤关键技术,如氧煤枪、炉前供氧与安全控制、煤粉流量计量与控制以及煤粉混合喷吹等技术。