Exploration of Long term Blockage Operation Mode of Shaogang 3 200 m3 Blast Furnace
Recently,the sidewall temperature T2183(elevation 7.63 m)of Shaoguan Iron and Steel's No.8 blast furnace(3 200 m3)has risen by over 635 ℃,posing a safety hazard of burning through the furnace hearth.To control the continued rise of sidewall temperature,measures were taken to seal the No.13 tuyere,adjust the area of some tuyere,and reduce the erosion of edge airflow on the corresponding furnace hearth area to stabilize the sidewall temperature.Under the condition of long-term blockage of the gas distribution in the furnace cylinder,starting from improving raw materials,measures such as adjusting the upper and lower parts,controlling reasonable gas flow distribution,controlling appropriate air volume,refining operations,and strengthening the management of iron outside the furnace are taken to achieve the goal of preventing the side wall temperature from continuing to rise and maintaining relatively stable furnace conditions.
blocking air ventsside wall temperatureheat load fluctuationslag skin
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