高炉炉頂プロフィール計を活用した装入物分布モデルによる炉内状態の検討(高炉のモデル解析)(<特集>製銑技術の拡大と高度化)

概要

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Based on the results of profile meter measurements in the blast furnace, an advanced burden distribution model was developed. The simulated results were used as input data to the two dimensional blast furnace model, which was developed by considering radial distributions of gas flow, heat transfer, and reactions. The effects of burden distribution on the condition inside of blast furnace were numerically studied. The burden distribution investigated was the radial distribution of ore to coke ratio (O/C) and the radial distribution of particle diameter. It was clarified that the condition inside of blast furnace was strongly affected by the radial distribution of O/C. For example, by moving the armor position of the ore to the furnace center, O/C at the wall was decreased and the shape of the cohesive zone was changed from a inverted V type to a W type. The changes in gas composition and temperature distributions at the top and also in gas pressure at the furnace wall in the stack, which were caused by O/C distribution change, were in good agreement with the simulated results.
社団法人日本鉄鋼協会の論文
1987-11-01