Off-line model of blast furnace liquid levels

A1 Originalartikel i en vetenskaplig tidskrift (referentgranskad)

Interna författare/redaktörer

Publikationens författare: Mauricio Roche, Mikko Helle, Jan van der Stel, Gerard Louwerse, Lei Shao, Henrik Saxén
Förläggare: Iron and Steel Institute of Japan
Förlagsort: Tokyo, Japan
Publiceringsår: 2018
Tidskrift: Isij International
Volym: 58
Nummer: 12
Artikelns första sida, sidnummer: 2236
Artikelns sista sida, sidnummer: 2245
eISSN: 1347-5460


An off-line simulation model of the blast furnace hearth is developed based on mass balances for iron
and slag, expression of the liquids outflow rates and logical conditions for the start and the end of the
outflow of liquids. The dynamic model divides the furnace hearth into two regions of sizes that may
change during the tapping process. It provides a description of the time evolution of the liquid levels and
predicts the duration and the periods of iron- or slag-only flow in the beginning of the taps. The values of
some model parameters are estimated on the basis of measurements in a reference blast furnace, while
others are fixed. A sensitivity analysis of the model is provided, revealing the role of some key parameters.
The model is demonstrated to describe the overall drainage behavior of the reference furnace reasonably
well, and the presence of pools with different liquid levels can also be deduced from the real data. Finally,
some recommendations for future work are suggested.

Senast uppdaterad 2020-10-04 vid 03:41