2003 Takanobu Inada Effect of Blast Furnace Profile on Inner Furnace States isijinternational.43.1003

This study investigates the influence of blast furnace profile on operational results and stability, with a focus on enhancing productivity through advanced mathematical simulations. The aim is to establish quantitative guidelines for furnace profile design, as existing approaches rely extensively on experiential judgments derived from historical data. The methodology entails employing three mathematical simulators, which include a 3-dimensional dynamic simulator for assessing working zone conditions, a mechanical stress simulator for the packed bed, and subsequent interlinking to analyze various performance aspects of the blast furnace. The targeted blast furnace had an inner volume of 3,000 m3, with profile conditions meticulously defined. Results indicate that the choice of furnace profile significantly correlates with operational efficiency, highlighting the importance of optimizing parameters such as material flow and temperature distribution. Furthermore, the study reveals that while qualitative assessments have been articulated in prior research, there remains a substantial gap in the theoretical foundations necessary for comprehensive furnace design assessment. Overall, the findings underscore the critical relationship between mathematical modeling and practical operation enhancements in blast furnace technology.