The hearth oxygen injection technique used in cupola melting and t he effects resulted from using it to increase tapping temperature,reduce coke c onsumption,reduce melting loss of elements and so on was described.

• 阐述了冲天炉熔炼炉缸喷氧技术和在提高铁液出炉温度、降低焦碳消耗、增加熔化率、减少元素损耗等方面的应用效果。