After 60 hours of maintenance since June 25th,it is difficult to resume air circulation of No.2 blast furnace in Anyang Steel.By analyzing the quality of raw materials and fuels,the condition of the furnace hearth,the treatment of air vents and the storage space of the silo,the main reasons for slow recovery of furnace conditions are fluctuations in the quality of sintered ore entering the furnace,the structure and quality of coke,the poor working conditions of the furnace hearth and long idle time are the direct reasons for the slow recovery of the furnace condition.By improving the quality of raw materials and fuels,shutting down the slag filling vents,temporarily blocking some vents to appropriately increase wind speed and blowing energy,and improving the uniformity of gas flow distribution,the blast furnace condition is gradually restored.
维普
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