Experimental and numerical study of the characteristics of the forced oscillation in a pulsation fluidized bed (PFB) for coal separation
文献类型：期刊论文
| 作者 | Dong, Liang1,2; Zhu, Fenglong2,3; Li, Yanjiao2,3; Zhao, Yuemin2,3; Duan, Chenlong2,3; Ren, Yongxin2,3; Wang, Guanghui1,2; He, Jingfeng2,3; Zhang, Yong2,4
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| 刊名 | CHEMICAL ENGINEERING SCIENCE
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| 出版日期 | 2021-04-28 |
| 卷号 | 234页码:12 |
| 关键词 | Dry coal beneficiation Pressure fluctuation CFD-DEM simulation Power Spectral Density Bubble motion |
| ISSN号 | 0009-2509 |
| DOI | 10.1016/j.ces.2021.116459 |
| 英文摘要 | Pulsation fluidized bed (PFB) has indisputable advantages for the dry coal beneficiation process. Due to the interaction mechanism between pulsation gas flow and particles is not clear, the regulation of the parameters is still based on empirical method. In this study, the oscillation characteristics of PFB in relation to pressure fluctuations and bubbles motion were studied by both lab experiments and CFD-DEM simulation. Power Spectral Density (PSD) results indicated that dominant frequency of pressure fluctuations was the same as the pulsation frequency of gas flow. In addition, double peaks were clearly formed when the pulsation frequency was set close to the bed natural frequency (about 3.49 Hz). Furthermore, Bubble growth was limited at a moderate frequency (3.49 Hz), but continued to increase at a higher frequency (5.24 Hz). Lab separation experiment also proved that, the pulsation frequency in the middle ranges (especially close to the natural frequency) can significantly improve separation performance. (C) 2021 Elsevier Ltd. All rights reserved. |
| 资助项目 | Fundamental Research Funds for the Central Universities of China[2018QNA12] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000620375100001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | Fundamental Research Funds for the Central Universities of China |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/43627]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Dong, Liang; Zhang, Yong |
| 作者单位 | 1.China Univ Min & Technol, Artificial Intelligence Res Inst, Xuzhou 221116, Jiangsu, Peoples R China 2.China Univ Min & Technol, Minist Educ, Key Lab Coal Proc & Efficient Utilizat, Xuzhou 221116, Jiangsu, Peoples R China 3.China Univ Min & Technol, Sch Chem Engn & Technol, Xuzhou 221116, Jiangsu, Peoples R China 4.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Dong, Liang,Zhu, Fenglong,Li, Yanjiao,et al. Experimental and numerical study of the characteristics of the forced oscillation in a pulsation fluidized bed (PFB) for coal separation[J]. CHEMICAL ENGINEERING SCIENCE,2021,234:12. |
| APA | Dong, Liang.,Zhu, Fenglong.,Li, Yanjiao.,Zhao, Yuemin.,Duan, Chenlong.,...&Zhang, Yong.(2021).Experimental and numerical study of the characteristics of the forced oscillation in a pulsation fluidized bed (PFB) for coal separation.CHEMICAL ENGINEERING SCIENCE,234,12. |
| MLA | Dong, Liang,et al."Experimental and numerical study of the characteristics of the forced oscillation in a pulsation fluidized bed (PFB) for coal separation".CHEMICAL ENGINEERING SCIENCE 234(2021):12. |
入库方式： OAI收割
来源：过程工程研究所
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