Influence Analyse of Raw Fuel Change on Blast Furnace Condition of Jiuquan Steel

Because of the continuous price rising and quality deterioration of raw fuel since the second half of 2017, the technical and economic indicators of blast furnace of Jiuquan steel have been worsened. All kinds of consumption remains high level and it shows a continuous increasing trend which causing significant increasing cost of pig iron. The deterioration of raw Condition causes the fluctuation of furnace condition and the technical indicators, which seriously affects the stable operation of blast furnace and the safe production of ironmaking. This paper analyzed the effect of raw fuel condition on the economic indexes and the stability of the blast furnace in recent years. The raw fuel condition that can be adapted to the blast furnace was summarized. The raw fuel quality can be improved and the technical indexes can be optimized to reduce the cost of pig iron.