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《Coal Preparation Technology》 2010-01
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An Experimental Study on Terminal Velocity of Free Settlement of Particles in the Fluidized Bed

Gui Xiahui et al  
By conducting intensive research on the speed of free settlement of thick coal in the fluidized bed,we have set up the fluidized bed testing system.The calculation of parameters like Reynolds Number and the terminal velocity of free settlement of fluidized bed get the conclusion that the Alien Formula of Physical Model is the appropriate formula of thick coal particles free settlement terminal velocity;the Slovakia Wansen Formula of Empirical Model nearest to the actual value;the granularity and density are the most important two factors affecting the settlement of particles that with the increasing of the granularity and density,the irregularity of free settlement increases and the distance between the calculation value of free settlement and the actual testing value concluded by the Physical Model and the Empirical Model increases.
【Fund】: 国家863计划项目“高灰难选煤泥的高效分选设备与工艺研究(2007AA05Z339)”
【CateGory Index】: TD942
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