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Author(s): |
Buwei Ma, Department of Chemistry and Chemical Engineering, Henan University of Urban Construction, Pingdingshan, Henan, China
Zhenxin Zhao, Department of Chemistry and Chemical Engineering, Henan University of Urban Construction, Pingdingshan, Henan, China
Yaoling Wang, Department of Chemistry and Chemical Engineering, Henan University of Urban Construction, Pingdingshan, Henan, China
Shuquan Zhu, School of Chemistry & Environmental Engineering, China University of Mining & Technology (Beijing), Beijing, China |
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Abstract: |
The essay takes lignite in Inner Mongolia as its object, takes 10.5% oxygen gas as the drying medium to conduct a serial experiments of fluid bed drying. All prove different Fractions of critical fluidization velocity of lignite, drying cabinet (200℃~240℃),drying time(5~8min) and drying characteristics of Fluidized bed. By dewatering and drying experiment of all fractions of lignite, it gives equation which shows that there is a close relationship among drying methods, drying medium temperature and wind speed. From the energy point of view, the moisture is controlled in about 5% is appropriate to the dehydration and drying of lignite.
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