The operation condition of Tanggang No.3 blast furnace was poor after it was putted into use.Situations like high fuel ratio,low output and high daily tapping times frequently appeared.Through the analysis and study of the airflow distribution,furnace hearth status and pre-furnace operation,the key factors that affect the iron production time are finally ascertained.Obvious results are achieved after taking corresponding measures,including the reduce of the times of daily iron-tapping,the consumption of the pre-furnace and the workload of the furnaceman,the saving of the cost,improving of various technical indicators and so on.The condition of the furnace has improved significantly,realizing low carbon,low consumption and efficient production.
Blast furnaceTemperatureAlkalinityCannon mudTimes of daily iron-tapping