Force characteristic of the large coal particle moving in a dense medium gas–solid fluidized bed
Force characteristic of the large coal particle moving in a dense medium gas–solid fluidized bed
复制标题
重介质气固流化床中煤大颗粒运动的受力特性
DOI：
10.1016/j.powtec.2014.01.072
复制
发表时间：
2014-03
影响因子：
5.2
通讯作者：
et al
中科院分区：
文献类型：
--
作者：
He J F;Zhao Y M;Luo Z F;et al
以粒径为100-300 μm的Geldart B磁铁矿粉为流化介质，研究了煤大颗粒在重介质气固流化床中运动时的受力特性。选取当量直径为13和25 mm的两组煤粒作为研究对象。通过受力分析，建立了大颗粒煤体受力的理论计算模型。采用实验测量和数值模拟相结合的方法，确定了煤大颗粒的受力特性。结果表明，当重介质气固流化床保持稳定流化状态时，各力在一定范围内变化，并呈现均匀波动。采用谱分析方法对测试结果与仿真结果进行了对比分析。最后得出理论受力计算结果与实测结果和仿真结果吻合较好的结论，验证了大颗粒煤体受力特性实测结果的准确性和仿真结果的可靠性。
Force characteristic of the large coal particle was investigated when it moved in a dense medium gas–solid fluidized bed with the 100–300 μm Geldart B magnetite powder as fluidized medium. We selected two groups of coal particles with the equivalent diameters of 13 and 25 mm as the studying objects. The theoretical force calculation model of the large coal particle was established by force analysis. The approaches of experimental measurement and numerical simulation were combined to determine the force characteristic of the large coal particle. The results indicate that the forces vary within certain suitable ranges and present uniform fluctuations when the dense medium gas–solid fluidized bed maintains a stable fluidization state. The spectral analysis method was introduced to compare the force results of measurement and simulation. Finally, we obtain the conclusion that the theoretical force calculation results provide good agreements with the measurement and simulation results, which also validates the accuracy of the measurement results and the reliability of the simulation results for the force characteristic of the large coal particle.
登录
查看更多内容
影响因子：
4.7
作者：
A. Hoffmann;L. Janssen;J. Prins
通讯作者：
A. Hoffmann;L. Janssen;J. Prins
稠密气固流化床中浸入大颗粒的受力测量与计算
影响因子：
5.2
作者：
Zhao Y M;Zhao Y M;He Y Q,et al.;He Y Q,et al.
通讯作者：
He Y Q,et al.
DOI：
10.1080/19392699.2013.790818
发表时间：
2013-04
影响因子：
2.1
作者：
Jing-feng He;Yuemin Zhao;Yaqun He;Z. Luo;C. Duan
通讯作者：
Jing-feng He;Yuemin Zhao;Yaqun He;Z. Luo;C. Duan
影响因子：
5.2
作者：
B. Hao;H. Bi
通讯作者：
B. Hao;H. Bi
影响因子：
--
作者：
Luo Zhen-fu;Chen Qing-ru
通讯作者：
Luo Zhen-fu;Chen Qing-ru