CAS OpenIR  > 研究所(批量导入)
Application of the discrete approach to the simulation of size segregation in granular chute flow
Alternative TitleInd. Eng. Chem. Res.
Zhang, JY; Hu, ZG; Wei, G; Zhang, YJ; Li, TH; Li, JH
2004-09-01
Source PublicationINDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
ISSN0888-5885
Volume43Issue:18Pages:5521-5528
AbstractSize segregation is commonly observed in flows of particles with different physical and mechanical properties. It can be favorable or undesirable, depending on different industrial processes. In our case, the size segregation of ore particles in a chute flow is utilized to prepare a well-bedded feedstock for high sintering quality, and magnets are installed below the chute to enhance size segregation. Discrete element method (DEM) simulations are carried out to explore the optimal arrangement of the magnets. The system is reduced to two dimensions, and the irregular ore particles of continuous size distribution are represented by rough disks of four diameters, with their properties reasonably sampled from the sintering materials. The magnetic fields are calculated using Ansoft in advance, which excludes the influence of the ore layer itself because it is weakly magnetic only. The simulations show that the proper magnetic field can significantly enhance the segregation, and it seems that the component normal to the chute has the dominant effect on segregation but the tangential component is also critical. The simulation results are in good agreement with our experiences in the industrial systems designed with consultation to these results. We suggest that despite major simplifications, the DEM is still an effective tool for dynamic studies and the design of complex granular flows in mineral processing.; Size segregation is commonly observed in flows of particles with different physical and mechanical properties. It can be favorable or undesirable, depending on different industrial processes. In our case, the size segregation of ore particles in a chute flow is utilized to prepare a well-bedded feedstock for high sintering quality, and magnets are installed below the chute to enhance size segregation. Discrete element method (DEM) simulations are carried out to explore the optimal arrangement of the magnets. The system is reduced to two dimensions, and the irregular ore particles of continuous size distribution are represented by rough disks of four diameters, with their properties reasonably sampled from the sintering materials. The magnetic fields are calculated using Ansoft in advance, which excludes the influence of the ore layer itself because it is weakly magnetic only. The simulations show that the proper magnetic field can significantly enhance the segregation, and it seems that the component normal to the chute has the dominant effect on segregation but the tangential component is also critical. The simulation results are in good agreement with our experiences in the industrial systems designed with consultation to these results. We suggest that despite major simplifications, the DEM is still an effective tool for dynamic studies and the design of complex granular flows in mineral processing.
KeywordParticle Simulation Rolling Friction Fluidized-bed Drum
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1021/ie034254f
URL查看原文
Indexed BySCI
Language英语
WOS KeywordPARTICLE SIMULATION ; ROLLING FRICTION ; FLUIDIZED-BED ; DRUM
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
WOS IDWOS:000223648400013
Citation statistics
Cited Times:37[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/4897
Collection研究所(批量导入)
Affiliation1.Chinese Acad Sci, Inst Proc Engn, Multi Phase React Lab, Beijing 100080, Peoples R China
2.Baoshan Iron & Steel Co Ltd, Ctr Technol, Shanghai 201900, Peoples R China
Recommended Citation
GB/T 7714
Zhang, JY,Hu, ZG,Wei, G,et al. Application of the discrete approach to the simulation of size segregation in granular chute flow[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,2004,43(18):5521-5528.
APA Zhang, JY,Hu, ZG,Wei, G,Zhang, YJ,Li, TH,&Li, JH.(2004).Application of the discrete approach to the simulation of size segregation in granular chute flow.INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,43(18),5521-5528.
MLA Zhang, JY,et al."Application of the discrete approach to the simulation of size segregation in granular chute flow".INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH 43.18(2004):5521-5528.
Files in This Item:
File Name/Size DocType Version Access License
Application of the d(1005KB) 限制开放CC BY-NC-SAApplication Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Zhang, JY]'s Articles
[Hu, ZG]'s Articles
[Wei, G]'s Articles
Baidu academic
Similar articles in Baidu academic
[Zhang, JY]'s Articles
[Hu, ZG]'s Articles
[Wei, G]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Zhang, JY]'s Articles
[Hu, ZG]'s Articles
[Wei, G]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.