ANALYSIS OF MOLTEN IRON COMPOSITION DIFFERENCE AT IRON-STEEL INTERFACE
Composition is one of the key parameters of the operation of the interface material flow of iron and steel in the steel manufacturing process,and the problem of the difference in the composition of molten iron measured in the ironmaking and steelmaking processes is common in iron and steel enterprises,which leads to the large consumption of desulfurizer in the desulfurization station,the long processing cycle and the high production cost.In view of the difference in the composition of molten iron in the application process of Shougang Jingtang Iron and Steel interface"one package to the end"technology,combined with the actual production data,the current situation of the difference in molten iron composition was counted,and the reasons for the difference were analyzed from the aspects of production process and detection method.The results show that the absolute deviation of Si content and S content measured by blast furnace and desulfurization station is 0.06%and 0.024%on average,and the composition of molten iron measured by ironmaking has limited reference for desulfurization and steelmaking.At the same time,it is pointed out that iron and steel enterprises should solve the problem of molten iron composition difference at the interface of iron and steel by optimizing the blast furnace tapping operation system,improving the hot metal sampling method,strengthening the management of hot metal ladle,strengthening the quality management of sampling probes and building rapid sampling devices for molten iron along the way.
iron-steel interfaceone-pack to the endmolten iron pretreatmentmolten iron compositiondesulfurization
万方数据
维普
