BLAST FURNACE HUMIDIFICATION SYSTEM FOR VANADIUM TITANIUM MAGNETITE SMELTING
Based on the characteristics of vanadium titanium magnetite blast furnace smelting and the production environment in the north,the influence of moisture content in cold air on the theoretical combustion temperature in front of the tuyere of vanadium titanium magnetite blast furnace was analyzed,and the importance of controlling the theoretical combustion temperature in the smelting process of vanadium titanium magnetite blast furnace was determined.The smelting method of blast furnace cold air and constant humidity was determined.Through practical demonstration,the traditional empirical calculation formula for the theoretical combustion temperature in front of the tuyere has been optimized.Based on the optimized theoretical combustion temperature calculation formula,the corresponding relationship between the blast furnace cold air humidity,atmospheric humidity,and other related parameters was studied through tracking and statistics in actual production.Based on this,the theoretical combustion temperature in front of the 1 250 m3 vanadium titanium blast furnace tuyere and the humidification amount of blast furnace air were correctly adjusted and controlled.On the basis of constant cold air humidity,the temperature distribution range in the furnace is made more reasonable and stable by flexibly controlling the theoretical combustion temperature in front of the tuyere,achieving the goal of optimizing the initial distribution and adjustment of the gas flow in the furnace hearth,stabilizing the gas flow channel in the furnace body,and enhancing the risk resistance of the vanadium titanium magnetite blast furnace in response to changes in production peripheral conditions.It implements adjustment measures to enhance the smelting strength of vanadium-titanium-magnetite in blast furnaces,stabilize the furnace condition trend and further ensure long-term stability.
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万方数据
