Study on Separation Kinetics of Non-Spherical Single Feeding Particle in the Gas–Solid Separation Fluidized Bed
Gas–solid separation fluidized bed is an efficient and clean coal separation technology with a good separation effect for coal particles. However, there is a lack of systematic research on the complex motion behavior of the feeding particles in gas–solid separation fluidized beds. In this study, the...
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| Format: | Article |
| Language: | English |
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MDPI AG
2024-11-01
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| Series: | Separations |
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| Online Access: | https://www.mdpi.com/2297-8739/11/12/341 |
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| author | Xuchen Fan Yuping Fu Yongliang He Liying Sun |
| author_facet | Xuchen Fan Yuping Fu Yongliang He Liying Sun |
| author_sort | Xuchen Fan |
| collection | DOAJ |
| description | Gas–solid separation fluidized bed is an efficient and clean coal separation technology with a good separation effect for coal particles. However, there is a lack of systematic research on the complex motion behavior of the feeding particles in gas–solid separation fluidized beds. In this study, the separation kinetics of non-spherical single feeding particles in the fluidized bed are examined. The particle sphericity coefficient Φ is introduced to characterize the morphology of irregular coal particles, and the drag coefficient for the feeding particles is modified to verify the suitability of the non-spherical particle drag model for gas–solid fluidized bed separation. After optimization and correction, a <i>ρ<sub>S.sus</sub></i> (the bed density when single feeding particles are suspended in the gas–solid separation fluidized bed) prediction model is obtained. When the prediction accuracy of the <i>ρ<sub>S.sus</sub></i> prediction model is 90%, the confidence degree is 85.72%. This <i>ρ<sub>S.sus</sub></i> of the single non-spherical feeding particle prediction model highlights a direction for improving the separation effect, provides a theoretical basis for the industrialization of gas–solid fluidized bed, and promotes the process of dry fluidized separation. |
| format | Article |
| id | doaj-art-8eedf14b4b8c4f1a9042f5a9ecf78596 |
| institution | DOAJ |
| issn | 2297-8739 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Separations |
| spelling | doaj-art-8eedf14b4b8c4f1a9042f5a9ecf785962025-08-20T02:43:50ZengMDPI AGSeparations2297-87392024-11-01111234110.3390/separations11120341Study on Separation Kinetics of Non-Spherical Single Feeding Particle in the Gas–Solid Separation Fluidized BedXuchen Fan0Yuping Fu1Yongliang He2Liying Sun3School of Safety and Emergency Management Engineering, Taiyuan University of Science and Technology, Taiyuan 030024, ChinaSchool of Safety and Emergency Management Engineering, Taiyuan University of Science and Technology, Taiyuan 030024, ChinaSchool of Safety and Emergency Management Engineering, Taiyuan University of Science and Technology, Taiyuan 030024, ChinaSchool of Safety and Emergency Management Engineering, Taiyuan University of Science and Technology, Taiyuan 030024, ChinaGas–solid separation fluidized bed is an efficient and clean coal separation technology with a good separation effect for coal particles. However, there is a lack of systematic research on the complex motion behavior of the feeding particles in gas–solid separation fluidized beds. In this study, the separation kinetics of non-spherical single feeding particles in the fluidized bed are examined. The particle sphericity coefficient Φ is introduced to characterize the morphology of irregular coal particles, and the drag coefficient for the feeding particles is modified to verify the suitability of the non-spherical particle drag model for gas–solid fluidized bed separation. After optimization and correction, a <i>ρ<sub>S.sus</sub></i> (the bed density when single feeding particles are suspended in the gas–solid separation fluidized bed) prediction model is obtained. When the prediction accuracy of the <i>ρ<sub>S.sus</sub></i> prediction model is 90%, the confidence degree is 85.72%. This <i>ρ<sub>S.sus</sub></i> of the single non-spherical feeding particle prediction model highlights a direction for improving the separation effect, provides a theoretical basis for the industrialization of gas–solid fluidized bed, and promotes the process of dry fluidized separation.https://www.mdpi.com/2297-8739/11/12/341feeding particlefluidized bedseparation kineticsdensity |
| spellingShingle | Xuchen Fan Yuping Fu Yongliang He Liying Sun Study on Separation Kinetics of Non-Spherical Single Feeding Particle in the Gas–Solid Separation Fluidized Bed Separations feeding particle fluidized bed separation kinetics density |
| title | Study on Separation Kinetics of Non-Spherical Single Feeding Particle in the Gas–Solid Separation Fluidized Bed |
| title_full | Study on Separation Kinetics of Non-Spherical Single Feeding Particle in the Gas–Solid Separation Fluidized Bed |
| title_fullStr | Study on Separation Kinetics of Non-Spherical Single Feeding Particle in the Gas–Solid Separation Fluidized Bed |
| title_full_unstemmed | Study on Separation Kinetics of Non-Spherical Single Feeding Particle in the Gas–Solid Separation Fluidized Bed |
| title_short | Study on Separation Kinetics of Non-Spherical Single Feeding Particle in the Gas–Solid Separation Fluidized Bed |
| title_sort | study on separation kinetics of non spherical single feeding particle in the gas solid separation fluidized bed |
| topic | feeding particle fluidized bed separation kinetics density |
| url | https://www.mdpi.com/2297-8739/11/12/341 |
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