DEM-CFD numerical simulation on the influence of coke diameter on combustion behavior of a blast furnace raceway

In-depth investigation of the raceways' dynamic behavior can shed valuable insights into the optimization of blast furnace (BF) operations in the ironmaking industry. In this work, DEM-CFD method was used to explore particle-scale transport phenomena and thermochemical behavior in a three-dimensional BF raceway. The influences of coke diameter on combustion characteristics and thermochemical behaviors are investigated and microscopic analysis on the coke bed is carried out. These results provide novel findings regarding the behavior of complex processes in the raceway, which will help to optimize the iron-making process.