Production Practice of Treating Slag Peeling in Changgang No.9 Blast Furnace
In view of the phenomenon of slag crust falling off frequently in the lower part of shaft during the smelting process of Changgang No.9 blast furnace in August,the causes of slag skin falling off and its influence on blast furnace smelting are briefly explained.This paper focuses on the measures taken by No.9 blast furnace to strengthen the control of raw materials,adjust the upper adjustment system,optimize the lower air supply system,activate the hearth and strengthen the tapping organization.The practice shows that by adopting the above measures,the slag peel off phenomenon in the lower part of shaft is effectively controlled,the stability of the furnace condition is improved,the utilization coefficient of the blast furnace is increased by 0.09 t/(m3·d),and the fuel ratio is reduced by about 14.5 kg/t,which accumulates valuable experience for the stable and smooth operation of the blast furnace and the completion of economic indicators in the future.
slag crust fall-offstability of furnace conditioneconomic indicator
NETL
NSTL
万方数据
