Stable Production Practice of Ultra-low silicon Blast Furnace at Han Steel No.1 Blast Furnace
In 2023,with the continuous downturn in the steel market,the pressure to reduce costs in the system is enormous.In order to further reduce pre iron costs,Han Steel's No.l blast furnace has implemented ultra-low silicon smelting production practice.With blast furnace operation management as the core,measures such as strengthening raw material management,improving slag alkalinity,formulating reasonable operating policies,stabilizing furnace conditions,and strengthening equipment maintenance and guarantee have been taken to achieve low silicon but not low heat,reducing silicon but not reducing quality.The silicon content of molten iron is an important indicator for evaluating the quality and production technology level of blast furnace iron.From July to November 2023,the average w[Si]=0.27％and w[S]=0.035％of pig iron were achieved.At the same time,the blast furnace continued to operate smoothly,achieving good economic benefits for the company and making outstanding contributions in reducing costs and increasing efficiency.
low silicon smeltingcontrol of harmful elementsblast furnace operation
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