Fluidization characteristics and separation performance of mild-hot gas-solid fluidized bed

• Autorzy: Lv Bo , Luo Zhenfu , Zhang Bo , Zhao Yuemin , Qin Yunfei

Identyfikatory

DOI

10.5277/ppmp18120

• Języki publikacji: EN

Abstrakty

EN

In recent years, the mild-hot gas-solid fluidized bed had a crucial influence on wet-in-feed sorting when it comes to moist feed (e.g., lignite) because of its expanding sorting range. To explain the favorable sorting effect of the mild-hot gas-solid fluidized bed, the fluidization characteristics (e.g., the pressure drop, density, etc.) was studied under different work conditions. In addition, a high-speed dynamic camera was used in this study to compare the slumping behavior of the magnetite slag at different temperatures. The optimum conditions for coal separation was also studied by Design-Expert software. It was shown that the bed temperature of the fluidized bed has a particular effect on its stability when the bed temperature was below 120 °C, which had a great influence on the separation. Finally, the probable deviation E of the mild-hot gas-solid fluidized bed under optimum operation conditions could be as low as 0.09 g/cm3 which showed the good separation ability.

Słowa kluczowe

EN

dry coal separation; mild-hot gas-solid fluidized bed; bed temperature; fluidization characteristics

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Physicochemical Problems of Mineral Processing
• Rocznik: 2019
• Tom: Vol. 55, iss. 1
• Strony: 184--195
• Opis fizyczny: Bibliogr. 23 poz., rys., tab.

Twórcy

autor

Lv Bo

• Key Laboratory of Coal Processing and Efficient Utilization of Ministry of Education, China University of Mining & Technology, Xuzhou 221116, China
• School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou, 221116, China

autor

Luo Zhenfu

• Key Laboratory of Coal Processing and Efficient Utilization of Ministry of Education, China University of Mining & Technology, Xuzhou 221116, China
• School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou, 221116, China

autor

Zhang Bo

• Key Laboratory of Coal Processing and Efficient Utilization of Ministry of Education, China University of Mining & Technology, Xuzhou 221116, China
• School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou, 221116, China

autor

Zhao Yuemin

• Key Laboratory of Coal Processing and Efficient Utilization of Ministry of Education, China University of Mining & Technology, Xuzhou 221116, China
• School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou, 221116, China

autor

Qin Yunfei

• Key Laboratory of Coal Processing and Efficient Utilization of Ministry of Education, China University of Mining & Technology, Xuzhou 221116, China
• School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou, 221116, China

Bibliografia

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Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).