Blast furnace control method

Details Blast furnace control method Blast furnace control method

C - Chemistry, Metallurgy

21

B

341/32, 53/42

C21B 7/00 (2006.01)

Patent

CA 1216156

BLAST FURNACE CONTROL METHOD Abstract of the Disclosure A method for maintaining a uniform stable opera- tion of a blast furnace susceptible to erratic behavior because of large disturbances introduced into the furnace is described. The method includes: (a) determining a high temperature heat parameter (HTH) over a predetermined period of time, (b) determining a CEEP parameter over a predeter- mined period of time, (c) comparing the differences between the HTH and the CEEP parameters and their respective averages during selected time periods of operation, and (d) changing the temperature and/or moisture content of the hot blast air dependent upon the values in step (c). - 1 -

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