A commercial test of charging hot-briquetted iron is carried out in Baosteel No.2 BF to figure out a new approach to reduce carbon emission of the furnace.It is introduced the role of HBI on the production of the furnace from furnace run-ning,gas permeability,gas amount generated,heat system,slag ratio,daily output,and CO2 emissions.As the amount of HBI increases to 60 kg/t,it is seen that(1)the furnace runs more smoothly as the rate of HBI increases,the grade of the charged ore improves,the fuel rate drops greatly and the output increases also,signifying an remarkable result in output in-crease and consumption reduction;(2)the coke rate falls from 415kg/t in the reference period to 353kg/t,and the fuel rate drops from 514 kg/t to 492 kg/t;(3)the oxygen enrichment rate climbs to 4.255％,and the productivity hits 2.181 t/(m3·d),the daily output is 5.9％higher than that in the base period.
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