Heat Transfer Modelling of a Blast Furnace Hearth

QC 20100706 Tidigare titel: Heat transfer modeling of a blast furnace hearth
This paper describes the development of a heat transfer model with the purpose of studying the heat flows in the hearth of an operating blast furnace. Temperature profiles were calculated for a period of time to study the transition from steady blast furnace operation to an unsteady period, and back to a steady period. This total time period had the highest lining temperatures registered since the beginning of the current campaign. It was concluded that no part of the lining had an inner temperature higher than the critical temperature of 1150 degrees C. Thus, no refractory could have been in direct contact with slag or iron. The corner between the wall and the bottom was identified to be the most sensitive part of the lining. It is suggested that thermocouples are installed in this area, to improve the temperature control.

TEKNIK OCH TEKNOLOGIER Materialteknik Metallurgi och metalliska material hsv//swe
ENGINEERING AND TECHNOLOGY Materials Engineering Metallurgy and Metallic Materials hsv//eng
Blast furnace
modelling
heat transfer
hearth
measurements
STATE
TEMPERATURE
OPERATION
Metallurgical process engineering
Metallurgisk processteknik

By the author/editor: Swartling, Maria; Sundelin, Bo; Tilliander, Ande ...; Jönsson, Pär

About the subject

ENGINEERING AND TECHNOLOGY: ENGINEERING AND ...; and Materials Engine ...; and Metallurgy and M ...

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