| 狭缝式矩形喷动床中多粒度颗粒体系的最大喷动压降 |
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| 引用本文： | 王宝群,罗保林,林尊锦.狭缝式矩形喷动床中多粒度颗粒体系的最大喷动压降[J].化学反应工程与工艺,2001,17(2):107-111. |
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| 作者姓名： | 王宝群 罗保林 林尊锦 |
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| 作者单位： | 1. 中国科学院化工冶金研究所,
2. 加拿大不列颠哥伦比亚大学化工与生物资源工程系, |
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| 摘 要： | 在 15 0 mm× 5 0 mm× 110 0 mm的矩形喷动床中 ,研究了单一粒径体系和二组分及三组分混合粒径颗粒体系的最大喷动压降受颗粒粒径及粒度组成、静止床高和气体入口狭缝宽度的影响情况。实验采用宽度为2、4、6 mm三种宽度的狭缝式气体分布板 ,实验物料为单一粒径分别为 1、1.5、2 mm的玻璃珠。实验表明矩形喷动床的最大喷动压降与上述三种影响因素都有关系。本文还给出了最大喷动压降随这三种因素变化的实验关联式
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| 关 键 词： | 狭缝式矩形喷动床 多粒度颗粒 最大喷动压降 颗粒粒径 粒度组成 |
| 文章编号： | 1001－7631（2001）02－0107－05 |
| 修稿时间： | 2000年6月2日 |
MAXIMUM SPOUTED PRESSURE DROP OF MULTI-COMPONENT PARTICLE MIXTURES IN A SLOT -RECTANGULAR SPOUTED BED |
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| WANG Bao-qun,LUO Bao-lin,C.J.Lim.MAXIMUM SPOUTED PRESSURE DROP OF MULTI-COMPONENT PARTICLE MIXTURES IN A SLOT -RECTANGULAR SPOUTED BED[J].Chemical Reaction Engineering and Technology,2001,17(2):107-111. |
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| Authors: | WANG Bao-qun LUO Bao-lin CJLim |
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| Abstract: | The maximum spouted pressure drop of multi si ze composition glass bead mixtures was investigated in a rectangular slot spout ed bed with a gas entry slot which width varies from 2mm to 6mm .The experimenta l results of single and multi size composition particle mixtures showed that th e maximum spouted pressure drop was strongly dependent on the particle size and its composition in the particle mixtures, the static bed height and the gas entr y slot. In the present work, regimes describing variation of maximum spouted pre ssure drop for multi size composition particle mixtures were obtained. An empir ical relation for the maximum spouted pressure drop ΔPms was determined t o be:ΔPms（1－ε）（ρs－ρf）gH＝0．023HDc－0．074HsDc0．028ρs－ρfρf－0．65∏ni＝1dpiDc－0．54Xi (n=3) |
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| Keywords: | slot rectangular spouted bed multi-size composition maximum spouted pressure drop |
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