The Mechanism of Post Combustion in Converter

Abstract

A study has been made on the mechanism of post combustion by the hot metal experiment using 250 t converter and O₂-CO experimental combustion furnace. In addition to these experiments, the decarburization experiment has been pursued using 10 t ladle.
Post combustion ratio "α" observed is well explained by the post combustion model presented in this report. The equations to estimate post combustion ratio are as follows.
α_i≅ 0.1 ( h/d₀ )^0.3-(h/d₀)^-0.7+0.01
α= ^Σ_ij(α_i × β_ij × F_O2i) / ^Σ_iF_O2i
(β_ijF_O2i+β_jiF_O2j = 0 (-1 ≤ β_ij≤ 1 ))