Floating internals in fast bed of cohesive particles
文献类型：期刊论文
| 作者 | Tong, Hua1; Li, Hongzhong2 |
| 刊名 | POWDER TECHNOLOGY
 |
| 出版日期 | 2009-03-25 |
| 卷号 | 190期号:3页码:401-409 |
| 关键词 | Floating internal Fast bed Agglomerate Cohesive particles |
| ISSN号 | 0032-5910 |
| 通讯作者 | Tong, H |
| 英文摘要 | Four kinds of spherical materials with diameter between 0.3 mm to 0.6 mm were employed as floating internal in fast bed of cohesive particles to reduce agglomerate size and narrow the size distribution. The fast bed of cohesive particles with floating internals preserves basic fluidizing characteristics of fast fluidization. However, the size of agglomerates in fast beds of all four types of cohesive particles employed in experiments was notablely reduced. The effect of floating internals could be obviously observed only when the fluidizing gas velocity is higher than about 3-4 times of incipient fluidizing velocity of floating internals. This phenomenon may indicate an "active velocity" for floating internals to take effect. Under specific operating conditions and a matching between cohesive powder and floating internal, there will be a maximal agglomerate size that floating internals can break. This suggests a proper startup procedure for fast bed with floating internals to prevent the formation of oversize agglomerates. Methods for estimating the gas velocity at which floating internal take effect and the terminal velocity of floating internals and agglomerates were developed to give operating range of fluidizing gas velocity of fast bed with floating internals. A model for calculating maximal agglomerate size that floating internal can break was also developed, and an analysis on the influence of fast bed's operating conditions on the maximal size was made based on the model. (C) 2008 Published by Elsevier B.V. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Engineering, Chemical |
| 研究领域[WOS] | Engineering |
| 关键词[WOS] | CIRCULATING FLUIDIZED-BED ; ULTRAFINE POWDERS ; FORCES |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000264471800016 |
| 公开日期 | 2013-12-10 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/6702]  |
| 专题 | 过程工程研究所_多相复杂系统国家重点实验室 |
| 作者单位 | 1.Beijing Univ Chem Technol, Dept Environm Engn, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, Beijing 100081, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tong, Hua,Li, Hongzhong. Floating internals in fast bed of cohesive particles[J]. POWDER TECHNOLOGY,2009,190(3):401-409. |
| APA | Tong, Hua,&Li, Hongzhong.(2009).Floating internals in fast bed of cohesive particles.POWDER TECHNOLOGY,190(3),401-409. |
| MLA | Tong, Hua,et al."Floating internals in fast bed of cohesive particles".POWDER TECHNOLOGY 190.3(2009):401-409. |
入库方式： OAI收割
来源：过程工程研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。