|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||CFD Modeling and Simulation in Materials Processing
||G-1: Gas-solid Flow and Injected Gas Distribution in Oxygen Blast Furnace Analyzed by DEM-CFD Coupling Model
||Zeshang Dong, Jingsong Wang, Jinzhou Liu, Xuefeng She, Qingguo Xue, Lin Lin
|On-Site Speaker (Planned)
DEM-CFD coupled mathematical model of oxygen blast furnace (OBF) is established. Then it is applied to study the gas-solid flow in OBF. The effects of burden motion state, particle size, auxiliary tuyere size and the ratio of injected gas flow rate to total gas flow rate on the injected gas distribution were investigated in detail. The results show that there are 4 moving regions in the OBF. The high particles velocity corresponds to the high porosity in furnace, so the injected gas can penetrate into the center in moving bed more easily than fixed bed. Both decreasing particle size and increasing auxiliary tuyeres area will increase the injected gas ratio at the edge, but decrease at the center. Calculation results also prove that the ratio of injected gas flow rate to total gas flow rate is crucial for the injected gas distribution in the furnace.
||Planned: A print-only volume