Flow pattern transition characteristics in vibrated gas-solid fluidized bed of Geldart B magnetite powder using pressure drop signals analysis
Flow pattern transition characteristics in vibrated gas-solid fluidized bed of Geldart B magnetite powder using pressure drop signals analysis
复制标题
利用压降信号分析 Geldart B 磁铁矿粉振动气固流化床流型转变特性
DOI：
10.1016/j.powtec.2017.12.089
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发表时间：
2018-03
影响因子：
5.2
通讯作者：
Xuliang Yang
中科院分区：
文献类型：
--
作者：
Yadong Zhang;Yuemin Zhao;Liang Dong;Chenlong Duan;Enhui Zhou;Junyu Lu;Bo Zhang;Xuliang Yang
The vibrated gas-solid fluidized bed with the − 0.3 + 0.074 mm magnetite powder was utilized to study the flow pattern of bed and the effects of bubble motion on the fluidization characteristics. The results demonstrated that the standard deviation of the bed pressure fluctuation changed, as the gas velocity increased forming an inverted “U” shape plot. When the bed was in the bubbling fluidization mode, the bubbles were produced with a main frequency of 7.5 Hz and the pressure drop signal energy was high. When the bed was in a quasi-turbulent state, the bed mainly produced relatively smaller bubbles between 7.5 and 20 Hz in frequency and the pressure drop signal energy was low. As the vibration frequency increased, both the bed initiation bubbling velocityu1and the onset velocity of turbulent fluidizationu2,decreased. The values of Δu= u2− u1, firstly increased and then gradually decreased with the increase of vibration frequency. Under the condition of vibration frequencyf= 25 Hz and three different vibration amplitudesA(i.e., 1, 2 and 3 mm), the maximum values of Δuare 8.9 cm/s, 7.67 cm/s and 7.28 cm/s, respectively.
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DOI：
10.1016/j.ijmst.2017.03.013
发表时间：
2017-05
影响因子：
11.8
作者：
L. Tang
通讯作者：
L. Tang
影响因子：
2.1
作者：
Haibo Jin;Z. Tong;Ji-yu Zhang;Bijiang Zhang
通讯作者：
Haibo Jin;Z. Tong;Ji-yu Zhang;Bijiang Zhang
影响因子：
4.7
作者：
Jin Ren;Qiming Mao;Jinghai Li;Weigang Lin
通讯作者：
Jin Ren;Qiming Mao;Jinghai Li;Weigang Lin
影响因子：
3.5
作者：
M. Tamadondar;R. Zarghami;M. Tahmasebpoor;N. Mostoufi
通讯作者：
M. Tamadondar;R. Zarghami;M. Tahmasebpoor;N. Mostoufi
影响因子：
2.1
作者：
Xuliang Yang;Yuemin Zhao;Z. Luo
通讯作者：
Xuliang Yang;Yuemin Zhao;Z. Luo