CAS OpenIR
Experimental and numerical study of the characteristics of the forced oscillation in a pulsation fluidized bed (PFB) for coal separation
Dong, Liang1,2; Zhu, Fenglong1,3; Li, Yanjiao1,3; Zhao, Yuemin1,3; Duan, Chenlong1,3; Ren, Yongxin1,3; Wang, Guanghui1,2; He, Jingfeng1,3; Zhang, Yong1,4
2021-04-28
Source PublicationCHEMICAL ENGINEERING SCIENCE
ISSN0009-2509
Volume234Pages:12
AbstractPulsation 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.
KeywordDry coal beneficiation Pressure fluctuation CFD-DEM simulation Power Spectral Density Bubble motion
DOI10.1016/j.ces.2021.116459
Language英语
Funding ProjectFundamental Research Funds for the Central Universities of China[2018QNA12]
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
Funding OrganizationFundamental Research Funds for the Central Universities of China
WOS IDWOS:000620375100001
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/43628
Collection中国科学院过程工程研究所
Corresponding AuthorDong, Liang; Zhang, Yong
Affiliation1.China Univ Min & Technol, Minist Educ, Key Lab Coal Proc & Efficient Utilizat, Xuzhou 221116, Jiangsu, Peoples R China
2.China Univ Min & Technol, Artificial Intelligence Res Inst, 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
Recommended Citation
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.
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