Solids motion and segregation of binary mixtures in a rotating drum mixer
文献类型：期刊论文
| 作者 | He, Y. R.; Chen, H. S.; Ding, Y. L.; Lickiss, B. |
| 刊名 | CHEMICAL ENGINEERING RESEARCH & DESIGN
 |
| 出版日期 | 2007-07-01 |
| 卷号 | 85期号:A7页码:963-973 |
| 关键词 | solids motion binary mixture rotating drum rolling mode numerical simulation Euler-Euler multi-fluid model |
| 英文摘要 | Mathematical modelling based on the continuum assumption and the dense phase kinetic theory is used in the work. It is found that the model captures the main features of solids motion and segregation in the drum and the results agree well with limited experimental data. The results show a clear two-region bed structure in the transverse plane of the drum operated in the rolling mode in terms of both total solids concentration and solids velocity distributions, a surface (active) layer with a low average concentration and a high velocity, and a passive layer close to the drum wall with high solids concentration and low solids velocity. The thickness of the two regions in terms of solids concentration differs greatly from that in terms of solids velocity, suggesting inaccuracy of the thin layer approximation models proposed in the past for predicting solids motion in the surface layer of rotating drums operated in the rolling mode. The results also show a clear core-shell structure in the transverse plane of the drum in terms of concentration of small and large particles. Under the conditions of this work, small particles tend to concentrate in the core region, while large particles tend to occupy the shell region, consistent with most experimental observations. Starting with a homogenous mixture of small and large particles, the above mentioned bed structures are found to be nearly fully developed within similar to 2.56 drum revolutions, which is consistent with experimental observations. An initial attempt has also been made to simulate the axial particle segregation. Although the initial results are promising, more work is clearly needed to establish a better picture of axial segregation. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Engineering, Chemical |
| 研究领域[WOS] | Engineering |
| 关键词[WOS] | AXIAL SEGREGATION ; RADIAL SEGREGATION ; ROTARY CYLINDERS ; TRANSVERSE PLANE ; GRANULAR MEDIA ; PARTICLES ; FLOW ; KINETICS ; MODELS ; KILN |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000248676300009 |
| 公开日期 | 2015-12-22 |
| 源URL | [http://ir.etp.ac.cn/handle/311046/106317]  |
| 专题 | 工程热物理研究所_中国科学院工程热物理所（论文库）_期刊论文（SCI） |
| 作者单位 | 1.Univ Leeds, Inst Particle Sci & Engn, Leeds, W Yorkshire, England 2.Chinese Acad Sci, Inst Engn Thermophys, Beijing, Peoples R China 3.Procter & Gamble Co, Newcastle Tech Ctr, Newcastle Upon Tyne, Tyne & Wear, England |
| 推荐引用方式 GB/T 7714 | He, Y. R.,Chen, H. S.,Ding, Y. L.,et al. Solids motion and segregation of binary mixtures in a rotating drum mixer[J]. CHEMICAL ENGINEERING RESEARCH & DESIGN,2007,85(A7):963-973. |
| APA | He, Y. R.,Chen, H. S.,Ding, Y. L.,&Lickiss, B..(2007).Solids motion and segregation of binary mixtures in a rotating drum mixer.CHEMICAL ENGINEERING RESEARCH & DESIGN,85(A7),963-973. |
| MLA | He, Y. R.,et al."Solids motion and segregation of binary mixtures in a rotating drum mixer".CHEMICAL ENGINEERING RESEARCH & DESIGN 85.A7(2007):963-973. |
入库方式： OAI收割
来源：工程热物理研究所
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