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Effect of Sudden Increase of Solid Feed Rate on the Arching in Hoppers Connected to a Moving-Bed Standpipe with Interstitial Gas Flow

Effect of Sudden Increase of Solid Feed Rate on the Arching in Hoppers Connected to a Moving-Bed Standpipe with Interstitial Gas Flow
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摘要 In this paper, a model is proposed for the prediction of the width of arching in hoppers resulted from sudden changes in solid feed rates. Such changes in solid feed rate usually come from the collision on the surface of the moving-bed in the standpipe. The model also takes into account the effect of the powder height in the standpipe of the hopper. The model proves to be adaptable for predicting operational conditions to avoid arching by keeping constant powder height in the main standpipe with interstitial gas flow. In this paper, a model is proposed for the prediction of the width of arching in hoppers resulted from sudden changes in solid feed rates. Such changes in solid feed rate usually come from the collision on the surface of the moving-bed in the standpipe. The model also takes into accountthe effect of the powder height in the standpipe of the hopper. The model proves to be adaptable for predicting operational conditions to avoid vxching by keeping constant powder height in the main standpipe wlth interstitial gas flow.
作者 景山 李洪钟
出处 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 1999年第1期1-9,共9页 中国化学工程学报(英文版)
基金 Supported by the China Petrochemical Corporation.
关键词 moving-bed standpipe width of arching model sudden increase of solid feed rate 固体进料速度 拱状模型 流体性质 移动床 气流
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二级参考文献4

  • 1李洪钟,Prowder Technol,1994年,78卷,179页
  • 2李洪钟,Powder Technol,1992年,73卷,147页
  • 3赵郡,化工冶金,1991年,12卷,3期,249页
  • 4李洪钟,高校化学工程学报,1990年,4卷,321页

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