ANALYSIS ON ABNORMAL FURNACE CONDITION OF No.3 BF IN ANYANG STEEL
By analyzing and studying the changes in various process parameters and the use of raw materials during furnace condition fluctuations,it is found that the reason for furnace condition fluctuations is that there are many types of iron containing raw materials entering the furnace,and continuous measures are taken to optimize gas utilization,resulting in changes in the distribution of blast furnace airflow,with significant weakening of the airflow at the center and edges.After the pressure relationship becomes tense,local airflow is generated,ultimately causing abnormal furnace conditions.By improving the permeability of the material column,directing the two airflows,and reducing the types of iron containing raw materials entering the furnace,the blast furnace condition can be quickly restored.
Large blast furnaceGas flowFurnace fluctuationFuel ratioFurnace condition recovering