Speaker
SERGEI ZAGAINOV
(Ural Federal University (URFU))
Description
The overall carbon rate supplied by coke and supplemental fuels is proposed as the parameter for energy efficiency estimation. The following measures ensure high energy efficient operation of blast furnace, operating with titania-magnetite burden: maximum possible top pressure; optimal slag composition; usage of special fluxes; maximum intensity of blast furnace operation; optimal distribution of ore load at the furnace top; optimization of raw material granulometry; optimal combination of coke, PCI and natural gas injection depending on coke and supplemental fuels qualities. All of these allowed to run NTMK-EVRAZ blast furnaces with overall carbon consumption of 400 -410 kg carbon/thm maintaining the specific productivity at 3- 3.3 thm/m3/day (working volume) level.
Author
SERGEI ZAGAINOV
(Ural Federal University (URFU))
Co-authors
ALEXANDER LAZOVICH
(Ural Federal University (URFU))
LARISA GILEVA
(Ural Federal University (URFU))
S. JIMOH
(Ural Federal University (URFU))
SERGEI FILATOV
(Novo-Lipetsk metallurgical combine)
VALENTIN FILIPPOV
(Nizhne-Tagilskiy metallurgical combine)
YAKOV GORDON
(Hatch Ltd.)