Process of hard-burning iron ore pellets on a traveling grate

Details Process of hard-burning iron ore pellets on a traveling grate Process of hard-burning iron ore pellets on a traveling grate

C - Chemistry, Metallurgy

22

B

53/9

C22B 1/20 (2006.01) C22B 1/24 (2006.01) C22B 1/245 (2006.01)

Patent

CA 1258376

ABSTRACT OF THE DISCLOSURE: In order to decrease the energy consumed during an oxidizing hard burning operation, carbonaceous solids are incorporated into the iron ore pellets in such a quantity that the pellets contain Cfi in excess of the quantity which is stoichiometrically required to reduce hematite to magnetite and, in addition, of the quantity required to decompose heat-consuming fluxes. In the burning zone of the traveling grate on which these pellets are burned, hot gases under a pressure of 5 to 20 millibars below atmospheric pressure are passed through the pellet bed.

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