Study on the temperature field and raw material reduction rate in the rotary kiln of Ni-Fe smelting
- 作者：LIU PengLI BaokuanWU Wenyuan
- 会议时间：2013-06-01
- 关键词：Ni-Fe smelting ; rotary kiln ; temperature filed ; reduction rate of raw material
- 作者单位：School of Materials and Metallurgy,Northeastern University,Shenyang 110819,Liaoning,China
- 母体文献：第五届宝钢学术年会论文集
- 会议名称：第五届宝钢学术年会
- 会议地点：上海
- 主办单位：中国金属学会
- 语种：chi
摘要
In present study,a mathematical model coupling the gas flow and the combustion of pulverized coal and furnace gas were developed to study the reduction rate of raw material in the rotary kiln,in which,k - ε turbulence model was used,the pulverized coal was treated as dispersed phase,combustion was simulated by species transport model,and the Pl radiation model was adopted.The model was validated by the experimental data.Based on this model,the velocity field of gas,the temperature distribution of the rotary kiln,the reduction rate of main components of NiO and Fe2O3 was obtained.