Abstract The ability of seal gas of solids with wide rang particle is measured in standpipe of �� 70 mm �� 4 800mm. On the basis of Ergun equation modified by Yoon and Kunii,the moving bed flow of solids with wide range particle in standpipe is calculated.The calculating results are consistent with experiment results.It indicates that Ergun equation modified by Yoon and Kunii can be used to calculate the moving bed flow of solids with wied range particle in standpipe.And we found that Ergun equation modified by Yoon and Kunii can be used to calculate the ability of seal gas of solids with wide rang particle if only the segregation velocities(included initial and complete) are known.
CHENG Zhong hu,ZHANG Jian min,ZHANG Hai shen,WANG Yang .The Moving bed Flow of Solid with Wide range Particle in Standpipe[J] Chemcial Industry and Engineering, 2000,V17(1): 8-14
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