The paper analyzes the dust characteristics of ironmaking raw material de-dusting system of blast furnace and proposes several ways to improve the dust collection efficiency of raw ma⁃terial system,which provides technical reference for ultra-low emission transformation...MORE The paper analyzes the dust characteristics of ironmaking raw material de-dusting system of blast furnace and proposes several ways to improve the dust collection efficiency of raw ma⁃terial system,which provides technical reference for ultra-low emission transformation and en...