Determining the gas trajectory in blast-furnace injection of pulverized coal

V. P. Lyalyuk; A. K. Tarakanov; D. A. Kassim; P. I. Otorvin; D. V. Pinchuk

doi:10.3103/S0967091217040088

Determining the gas trajectory in blast-furnace injection of pulverized coal

Authors: Lyalyuk V.P.¹, Tarakanov A.K.², Kassim D.A.¹, Otorvin P.I.³, Pinchuk D.V.³
Affiliations:
1. Krivoi Rog Metallurgical Institute
2. Ukrainian National Metallurgical Academy
3. PAO ArcelorMittal Krivoi Rog
Issue: Vol 47, No 4 (2017)
Pages: 257-262
Section: Article
URL: https://journals.rcsi.science/0967-0912/article/view/179516
DOI: https://doi.org/10.3103/S0967091217040088
ID: 179516

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Abstract

A method is outlined for determining the gas trajectory from the blast-furnace tuyere. The change in the trajectory on switching from natural-gas injection to pulverized-coal injection is considered. With the same rate of coke consumption in the furnace, switching to pulverized-coal injection intensifies the peripheral gas flow. This may be eliminated by restoring the optimal total energy of the blast and the hearth gas.