The profile geometry of BF significantly influences the iron-smelting process. However, the design optimization of furnace profiles is often reliant on empirical knowledge. Consequently, this study employs a three-dimensional multiphase blast furnace process model to conduct a numerical investigation on the recommended values of the H/D ratio (Effective height / Belly diameter) for volumes ranging from 500 m³ to 6000 m³. The results indicate that customized recommendations for the H/D ratio can be determined by minimizing the total energy consumption. Furthermore, large-volume BFs exhibit higher thermal energy efficiency and lower coke rate, primarily attributed to the diminished dissipation of heat from the top gas and furnace wall. Lastly, beyond the critical threshold of 2000 m³, global performance indicators and inner states stabilize. This model serves as a valuable tool for designing furnaces and assessing variations among furnaces with different volumes.
 

blast furnace,furnace profile,numerical simulation and modeling,computational fluid dynamics model