| abstract |
The present invention relates to a kind of blast furnace for the method and Metal Production for handling metallic ore, method comprises the following steps：The reducing metal ore in blast-furnace shaft, in particular metal oxide；Produced in blast-furnace shaft and contain CO 2 Furnace gas；Furnace gas is discharged from blast-furnace shaft；At least part of furnace gas is directly or indirectly guided to CO 2 In converter；And in the case where the C of stoichiometric excess be present, in CO 2 The CO that will be contained in converter in furnace gas 2 It is converted into by carrier gas and the molecular aerosol of C grains；CO will be come from 2 At least Part I of the aerosol of converter is guided into blast-furnace shaft；And by H 2 O is introduced in blast-furnace shaft.By means of reaction C+H 2 O→CO 2 + 2H, the nascent hydron for the quick reduction for causing metallic ore is produced in blast furnace.The reduction rate of metallic ore is thereby increases and it is possible to increase blast furnace transmission capacity or reduce blast furnace size.It can be easy to be introduced in blast-furnace shaft in the aerosol of fluid form. |