Application of Independent Integration Innovative Technologies in Shagang's 5800m3 BF

A series of independent design and integration technologies are used in Shagang's 5 800 m3 blast furnace, such as comprehensive long campaign technologies of blast furnace, furnace design adapting to beneficiated burden materials, hot metal tapping from 3-tapholes of super-large blast furnace, hot metal handling without re-ladling from iron-making to steel making sequence, new type of environment friendly slag treatment, energy saving equipment configuration for high tempera- ture blasting, optimized general layout, PCI with high oxygen enrichment and smelting with high top pressure. The blast fur- nace operation realizes high efficiency, high quality, energy saving and environment protection targets. Application of these technologies also results in considerable energy saving and consumption and brings obvious social and economic benefits.