Main Efforts in Zenith Steel No.3 BF for Successful Smelting with High Stock Batch Weight
The main efforts tried in Zenith Steel No.3 BF for achieving successful smelting under high stock batch weight are summarized.After blowing on,some measures are taken while building up the furnace operating profile,such as improving the quality of raw materials and fuel,optimizing the basic operating system,implementing higher flowrate pulverized coal in-jection under higher oxygen-enrichment,and stabilizing the heat load of the furnace.The stock batch weight is increased gradually from 90t to 111t,the furnace keeps on smooth and stable running,and main techno-economic indicators improve significantly,hitting the target of excellent quality,high output and low consumption.Under the condition of only 56.5％-57.2％comprehensive ore grade,the fuel rate is 495.88kg/t only and the coal rate 163.31 kg/t.The furnace overcomes the short but intensified pain while forming the operating profile,and realizes low cost production.
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