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Experimental and numerical study of the characteristics of the forced oscillation in a pulsation fluidized bed (PFB) for coal separation. Chem Eng Sci 2021. [DOI: 10.1016/j.ces.2021.116459] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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The Effect of the Characteristics of the Partition Plate Unit on the Separating Process of −6 mm Fine Coal in the Compound Dry Separator. MINERALS 2019. [DOI: 10.3390/min9040215] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Although compound dry separation technology has been applied to industrial applications for +6 mm size fraction of coal separation, the technology has not been widely applied in the separation of fine coal (−6 mm). In this study, the effect of the partition plate unit characteristics on both the average density of particles in the bed uniformly and the final separation results in a fine coal separation process were studied. According to the results, the standard deviations of the corresponding density distribution were 0.08, 0.14, and 0.07 when the height of the partition plate was 2.5 cm, the partition plate angle was 35°, and the distance from the apex of partition plate on the backplane, was 12 cm, respectively, which were the lowest values at the same level. These results showed that the average density of particles in the bed was uniformly, and its corresponding density distribution contour map was more regular. When the amplitude was 2.8 mm, the frequency was 29 Hz, the height of the partition plate was 2.5 cm, the partition plate angle was 35°, and the distance from the apex of the partition plate to the backplane was 12 cm; as a result, the E value was 0.115 g/cm3, the yield of the concentrate was 69.24%, the ash content was 12.52%, and the separation effect was better. The characteristics of the partition plate unit have an important effect on the separating process of −6 mm fine coal in the compound dry separator.
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Wang S, Yang Y, Yang X, Zhang Y, Zhao Y. Dry beneficiation of fine coal deploying multistage separation processes in a vibrated gas-fluidized bed. SEP SCI TECHNOL 2019. [DOI: 10.1080/01496395.2018.1505917] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Song Wang
- School of Chemical Engineering and Technology, China University of Mining & Technology, Xuzhou, China
| | - Yu Yang
- School of Chemical Engineering and Technology, China University of Mining & Technology, Xuzhou, China
| | - Xuliang Yang
- School of Chemical Engineering and Technology, China University of Mining & Technology, Xuzhou, China
- Key Laboratory of Coal Processing and Efficient Utilization of Ministry of Education, China University of Mining & Technology, Xuzhou, China
| | - Yadong Zhang
- School of Chemical Engineering and Technology, China University of Mining & Technology, Xuzhou, China
| | - Yuemin Zhao
- School of Chemical Engineering and Technology, China University of Mining & Technology, Xuzhou, China
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Lv B, Luo Z, Zhang B, Qin X, Zhu X. Particle motion and separation behavior of coal in gas–solid separation fluidized bed. POWDER TECHNOL 2018. [DOI: 10.1016/j.powtec.2018.08.013] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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5
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Characterization of temporal and spatial distribution of bed density in vibrated gas-solid fluidized bed. ADV POWDER TECHNOL 2018. [DOI: 10.1016/j.apt.2018.07.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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6
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Zhou E, Zhang Y, Zhao Y, Luo Z, He J, Duan C. Characteristic gas velocity and fluidization quality evaluation of vibrated dense medium fluidized bed for fine coal separation. ADV POWDER TECHNOL 2018. [DOI: 10.1016/j.apt.2018.01.017] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Zhou E, Zhang Y, Zhao Y, Luo Z, Yang X, Duan C, Dong L, Fu Z. Effect of vibration energy on fluidization and 1–6 mm coal separation in a vibrated dense medium fluidized bed. SEP SCI TECHNOL 2018. [DOI: 10.1080/01496395.2018.1445757] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Enhui Zhou
- Key Laboratory of Coal Processing and Efficient Utilization of Ministry of Education, China University of Mining and Technology, Xuzhou, China
- School of Chemical Engineering & Technology, China University of Mining and Technology, Xuzhou, China
| | - Yadong Zhang
- Key Laboratory of Coal Processing and Efficient Utilization of Ministry of Education, China University of Mining and Technology, Xuzhou, China
- School of Chemical Engineering & Technology, China University of Mining and Technology, Xuzhou, China
| | - Yuemin Zhao
- Key Laboratory of Coal Processing and Efficient Utilization of Ministry of Education, China University of Mining and Technology, Xuzhou, China
- School of Chemical Engineering & Technology, China University of Mining and Technology, Xuzhou, China
| | - Zhenfu Luo
- Key Laboratory of Coal Processing and Efficient Utilization of Ministry of Education, China University of Mining and Technology, Xuzhou, China
- School of Chemical Engineering & Technology, China University of Mining and Technology, Xuzhou, China
| | - Xuliang Yang
- Key Laboratory of Coal Processing and Efficient Utilization of Ministry of Education, China University of Mining and Technology, Xuzhou, China
- School of Chemical Engineering & Technology, China University of Mining and Technology, Xuzhou, China
| | - Chenlong Duan
- Key Laboratory of Coal Processing and Efficient Utilization of Ministry of Education, China University of Mining and Technology, Xuzhou, China
- School of Chemical Engineering & Technology, China University of Mining and Technology, Xuzhou, China
| | - Liang Dong
- Key Laboratory of Coal Processing and Efficient Utilization of Ministry of Education, China University of Mining and Technology, Xuzhou, China
- School of Chemical Engineering & Technology, China University of Mining and Technology, Xuzhou, China
| | - Zhijie Fu
- Key Laboratory of Coal Processing and Efficient Utilization of Ministry of Education, China University of Mining and Technology, Xuzhou, China
- School of Chemical Engineering & Technology, China University of Mining and Technology, Xuzhou, China
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Flow pattern transition characteristics in vibrated gas-solid fluidized bed of Geldart B magnetite powder using pressure drop signals analysis. POWDER TECHNOL 2018. [DOI: 10.1016/j.powtec.2017.12.089] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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9
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Yang X, Wang S, Zhang Y, Zhao Y, Luo Z. Dry beneficiation of fine coal using planar air jets. POWDER TECHNOL 2018. [DOI: 10.1016/j.powtec.2017.10.042] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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