| 摘要 |
<p>A method of determining carbon content of a heat during an oxygen blow into a BOF vessel. The light intensity emitted from the BOF vessel is measured by measuring an (ILI) value indicative of an increase, and a (DLI) value indicative of a decrease in light intensity emitted from the vessel, and calculating a DLI/ILI ratio. The amount of oxygen blown into the vessel is measured and the in-blow % carbon content of the heat is calculated using the ratio and the amount of oxygen blown. The oxygen blow into the vessel is stopped when the calculated carbon content is equal to an aim carbon for the heat, and the heat is then tapped for further processing into a finished steel product. Also claimed are a further two methods of determining carbon content of a heat during an oxygen blow into a BOF vessel. Also claimed are two apparatus for determining in-blow % carbon content in a BOF vessel. Also claimed is a light meter.</p> |
