Optimization of the operation of hot stoves

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Sammanfattning

The operation of hot stoves used for preheating the blast in the ironmaking blast furnace has a strong effect on the consumption of reductants, economic performance of and CO2 emissions from the steelmaking site. Generally, it is recommended to maintain as high blast temperature as possible, because this minimizes the rate of reductants in the blast furnace. The blast temperature is affected in a complex way by the time periods of heating and cooling of the stoves, and by the amount of gas combusted in the stoves. Furthermore, as the hot stoves show degraded performance with age, it is a non-trivial task to select optimal operation parameters for the stoves. The paper addresses this computationally by applying a one-dimensional heat-transfer model of the hot stoves for optimization of the performance of the system. The complexity and strong coupling of the decision variables is demonstrated by numerical examples, where the blast temperature is maximized under different constraints.
OriginalspråkOdefinierat/okänt
Titel på värdpublikation54th Annual Conference of Metallurgists hosting America's Conference on Aluminum Alloys
Redaktörer n/a
FörlagCanadian Institute of Mining, Metallurgy and Petroleum
Sidor1–10
ISBN (elektroniskt)978-1-926872-32-2
StatusPublicerad - 2015
MoE-publikationstypA4 Artikel i en konferenspublikation
EvenemangConference of Metallurgists AND America's Conference on Aluminum Alloys - 54th Annual Conference of Metallurgists (COM 2015). America's Conference on Aluminum Alloys (AMCAA)
Varaktighet: 23 aug. 201526 aug. 2015

Konferens

KonferensConference of Metallurgists AND America's Conference on Aluminum Alloys
Period23/08/1526/08/15

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