Title: Research and Application of Economy Smelting Technology Applied in Chongqing Steel's 2500m~3 BF
Abstract: Considering the technical difficulties brought by low grade of charged ore,high slag ratio,and more harmful elements in raw material faced by Chongqing Steel's 2500m3 blast furnace,research is made to obtain economy smelting technology for blast furnace by changing the concept with respect to smelting.The achieved economy smelting technologies in 2500 m3 blast furnace mainly include properly reducing blast inlet area,increasing blast speed and kinetic energy,making blast penetrating through the center burden,keeping hearth active,coordinating working system of upper part and lower part of furnace,improving gas utilization rate,holding high physical heat,appropriately increasing alkalinity,controlling magnesium and aluminum at reasonable ratio,speeding up slag fluidity,maintaining blast furnace at good operation profile and adopting economy injected coal ratio.
Publication Year: 2015
Publication Date: 2015-01-01
Language: en
Type: article
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