Method for operating shaft furnace

Details Method for operating shaft furnace Method for operating shaft furnace

C - Chemistry, Metallurgy

21

B

53/352, 53/42, 3

C21B 5/00 (2006.01) C21B 7/00 (2006.01) F27B 1/20 (2006.01)

Patent

CA 1297299

- 33 - ABSTRACT OF THE DISCLOSURE A method for operating a shaft furnace is performed by charging different ore/coke ratio mixture in radially different positions in the furnace. The ore/coke mixture ratio may be determined according to desired heat distribution in radial direction. For this, at least two mutually independently determined ore/coke mixture ratio mixtures are provided in each charge cycle of the burden. The mixture to be charged in the central portion of the furnace may have a higher coke content or a lower ore content for better permeability to the heating gas.

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