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| Fluidization performances of nanometer particles with sound field reflecting |
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LI Yan1,LIU Hui-e1,GUO Qing-jie1,WANG Ming-hua1,CHEN Shuang1,WANG Jie-wu2
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(1.College jf Chemistry and Chemical Engineering in China University of Petroleum r Dongying 257061，Shandong Province，China;2. Xi'an Changqin Technology Engineering Corporation 710021, China)
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| Abstract: |
| Under different sound pressure levels and different frequencies, the fluidization performances Si02 and Ti02 nanometer particles were investigated in a glass fluidized bed with diameter of 56 mm- Under the conditiom of low frequency of 40 —60 Hz and sound pressure level M^ier than 100 tJS, ibe slug anti channel tsxi be eliminated% and the fluidizatioii quality was promoted. Even and stable agglomerates were formed by nanometer particles. The minimum fluidization velocity decreases sharply with the sound pressure level increasing, and the fliiidized curve inclines to ihe Geldart A group particles. It is also indicated that the different phenomena among kinds of particles were obvious. |
| Key words: nancmeter particles acoustic field fluidization agglomerates |
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