Experiment study of adding VTi pellet in burden structure of blast furnace
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Abstract:
In allusion to the existing material conditions of blast furnace in Shuicheng I﹠S Corporation, rationality of sinter with VTi pellets is studied through metallurgical performance tests of single ore. Regularity for change of reducibility, reduction degradation index, melting and dropping index changes of burden structure are researched, at increased VTi pellets in the same proportion of sinters and different proportion of imported lump ores. The results show that sinter RI reaches 90.68%, integrated charge RDI and soft melting index are improved by adding vanadiumtitanium pellets. The charge structure is the best when VTi pellets ratio at 20%, which softening starting temperature is 1 147 ℃, softening range is 156℃, dripping temperature at is 1 349 ℃, maximum pressure is 2 223 Pa and has a good permeability.
