Experimental study and numerical simulation on fly ash separation with different plate voltages in rotary triboelectrostatic separator

• Autorzy: Zhang L. , Tao Y. , Tao D. , Zhang W. , Yang L.

Identyfikatory

DOI

10.5277/ppmp1872

• Języki publikacji: EN

Abstrakty

EN

As the main solid wastes of coal-fired power plants, fly ash particles with different electrical properties are usually recycled using triboelectrostatic separator. The purpose of this study was to investigate the effect of different plate voltages on the separation of fly ash in a rotary triboelectrostatic separator with experiments and numerical simulation. The maximum values of yield of ash products (48.30%), and decarbonisation rate (50.89%) and the minimum loss-on-ignition (6.61%) were obtained when the plate voltage was 24 kV in the separation experiments, while 55.98%, 59.46%, 5.80% were reached respectively when the plate voltage was 26 kV in the simulation. In general, experimental data were similar with numerical simulation. The turning points appeared around 25 kV due to the increasing mismatch in products, which resulted from the reinforced rebound phenomena, namely the charged particle rebound from the electrode plate with a larger reflection velocity, when the plate voltage increased from 18 to 28 kV. It was validated by the numerical simulation results.

Słowa kluczowe

EN

fly ash; rotary triboelectrostatic separator; plate voltage; numerical simulation

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Physicochemical Problems of Mineral Processing
• Rocznik: 2018
• Tom: Vol. 54, iss. 3
• Strony: 722--731
• Opis fizyczny: Bibliogr. 16 poz., rys., tab.

Twórcy

autor

Zhang L.

• School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou 221116, Jiangsu, China

autor

Tao Y.

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

autor

Tao D.

• School of Mining Engineering, University of Science and Technology Liaoning, Anshan, 114051, Liaoning, China

autor

Zhang W.

• School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou 221116, Jiangsu, China

autor

Yang L.

• School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou 221116, Jiangsu, China

Bibliografia

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