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The inferences of burden metallization rate on softening-melting dropping properties were investigated through\udsoftening-melting dropping test of three kinds of metalized burden pressure drop. The results indicated that the softeningmelting\udtemperature interval of pre-reduction mixed burden is bigger than primeval mixed burden, the melting interval\udnarrow with the rise of metallization rate of ferric burden as well as dropping temperature interval. The average pressure\uddrop, maximum pressure drop and softening-melting dropping properties eigenvalue decrease with the rise of metallization\udrate of ferric burden. Besides, the dropping temperature of burden reduces with the rise of carbon content of molten\udiron. The combination high metalized burden and higher carbon content of molten iron is benefit to decreasing thickness\udof cohesive zone and improve permeability of cohesive zone

STUDY ON SOFTENING AND DROPPING PROPERTIES OF METALIZED BURDEN INSIDE BLAST FURNACE