Treatment and Maintenance of Abnormal Temperature Rise of Hearth Side Wall of 5 100 m3 BF in Shandong Steel
After the medium maintenance and opening of the blast furnace,the temperature of the side walls of two 5 100 m3 blast furnaces increased abnormally.Through sorting and analyzing the reasons for the abnormal increase,measures were taken to improve the raw fuel conditions,strengthen iron mouth maintenance,press slurry into the furnace,block the tuyere,use titanium containing materials to protect the furnace,strengthen cooling,and reduce circulation in the active furnace.The temperature of the side walls of the blast furnace decreased to a safe and controllable range,and the blast furnace maintained efficient and stable operation.The utilization coefficient is 2.25 t/(m3·d),and the fuel ratio is 500 kg/t.
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