Diagnosis and Control of Abnormal Temperature Drop in Shagang's 5800 m3 BF Core
The temperature of Shagang's 5 800 m3 BF core drops by 151 ℃ abnormally.A big data analysis is carried out based on the integrated management platform of cast house operation.It is seen from the result that the response of BF core temperature to the change of BF operating parameters delays 3-5 days,and the said abnormal temperature drop is mainly in-duced by abnormal fluctuation of the sinter quality and the significant decrease of coke rate at furnace edge after the furnace distribution matrix is adjusted.By strengthening the quality management of raw materials and fuel,controlling the basic metal load in the furnace,optimizing the burden distribution and the blasting operation system,and normalizing the tapping activi-ties,the overall basic metal load of the furnace declines to 2.88kg/t,the core temperature turns up from the lowest 227 ℃ to 450 ℃,and the main techno-economic indicators improve significantly.
super-large sized blast furnacecore temperaturesinterload of basic metalore and coke rate at furnace edge
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