Coupled DEM - CFD Modelling of the Iron-Making Blast Furnace

摘要：

The modern iron-making blast furnace is a complex counter-current multi-phase high temperature reactor; its highly interdependent parameters make process simulation a very challenging task. Any accurate process simulation requires a realistic model of the solid and gas flow as well as their interaction. To achieve this, a coupled simulation is used linking solid flow modelled by the Discrete Element Model (DEM) to gas flow by CFD. The use of the DEM method ensures a realistic solid flow based on particle properties and fully takes into account its discrete nature. The main focus of the project lies on the cohesive zone, where the ore fed into the blast furnace softens and melts. The ore layers, alternating with coke layers, become increasingly impermeable and generate increased friction to the solid burden flow. The cohesive zone is critical to blast furnace performance and stability due to its influence on the gas and solid flow. Coupling of the DEM and the CFD methods gives the possibility of introducing thermodynamics and reaction kinetics into the continuous phase. The combination of the modelling techniques allows for simulation of the blast furnace process including realistic solid burden flow.

关键词： blast furnace solid flow DEM CFD

作者: Adema Allert Yang Yongxiang Boom Rob

作者单位: Materials Innovation Institute, M2i, Delft, The Netherlands Department of Materials Science and Engi Department of Materials Science and Engineering,Delft University of Technology, Mekelweg 2, 2628 CD,

会议类型: 国际会议

会议名称: The 5th International Congress on the Science and Technology of Ironmaking(第五届国际炼铁科技大会 ICSTI09)

会议地点: 上海

会议语种:英文

页码: 1085-1089

在线出版日期: 2009-10-20（万方平台首次上网日期，不代表论文的发表时间）