ABSTRACT In shougang ironmaking system, the key technologies are researched and developed, the advanced engineering integration system is designed and constructed. It configures a high pellet charging ratio and high efficiency low carbon smelting process system, to realize the ironmaking process dissipation system optimization. The technical characteristics of Shougang’s blast furnace include improve the blast oxygen enrichment ratio, reduce the blast volume and bosh gas volume, improve the PCI amount and top pressure, as well as raise the hot blast temperature steadily. The comprehensive technologies of thick material layer sintering and hot air circulation has realized the reduction of resources and energy, and effectively reduced the emission of CO2 and pollutants in the sintering process. The travelling grate induration machine is applied to produce high quality and high performance pellet, the preparation and application technology of alkaline pellet are developed and applied, which establishes a technical foundation for the blast furnace ionmaking of high proportion of pellet charging.
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