Balance of Efficiency and Security-influence on Slurry Transport from the Diffusion of Flow Passages of a Deep-sea Mining Pump
Slurry transport pumps, the central equipment of deep-sea mining (DSM) systems, provide the lifting power required for lifting mineral ores from the seafloor to the surface. The current technical challenges are associated with transport security and the economic aspects of coarse ore particles in pu...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Isfahan University of Technology
2023-05-01
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| Series: | Journal of Applied Fluid Mechanics |
| Subjects: | |
| Online Access: | https://www.jafmonline.net/article_2253_dcc9caec073102f3fc24edf077e09107.pdf |
| _version_ | 1827932402164432896 |
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| author | Z. Zhu Y. Lv X. Su J. Zhang R. Wang W. Lu J. Sun |
| author_facet | Z. Zhu Y. Lv X. Su J. Zhang R. Wang W. Lu J. Sun |
| author_sort | Z. Zhu |
| collection | DOAJ |
| description | Slurry transport pumps, the central equipment of deep-sea mining (DSM) systems, provide the lifting power required for lifting mineral ores from the seafloor to the surface. The current technical challenges are associated with transport security and the economic aspects of coarse ore particles in pumps and pipelines. This paper focuses on the transportation characteristics of slurry pumps and uses theoretical methods, numerical calculations, and experimental methods to identify a feasible working mode. The geometric parameters of impeller channels in pump hydraulics significantly influence the migration properties of particles which in turn affects the overall security and economy of the system. The ratio of the impeller cross-sectional area F2/F1 (F1: cross-sectional area of the impeller outlet; F2: cross-sectional area of the impeller inlet) affects the particle passing capacity but negatively impacts pump efficiency. The percent of particles in the excellent passage interval of 0.2 s to 0.25 s increases from 25 to 43% when the number increases from 1.57 to 2.51. The pump behavior increases of the head by 5–10 m, and the efficiency decreases by 5–10%. So, the recommended span of F2/F1 is 1.57–2.00, and satisfying particle passing ability and efficiency can be achieved in this range. This study can provide a reference for the commercial transportation of slurry ores for deep-sea mining systems. |
| first_indexed | 2024-03-13T07:09:13Z |
| format | Article |
| id | doaj.art-fe49b099882f4cf3ab6e5964d8c61baa |
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| issn | 1735-3572 1735-3645 |
| language | English |
| last_indexed | 2024-03-13T07:09:13Z |
| publishDate | 2023-05-01 |
| publisher | Isfahan University of Technology |
| record_format | Article |
| series | Journal of Applied Fluid Mechanics |
| spelling | doaj.art-fe49b099882f4cf3ab6e5964d8c61baa2023-06-06T06:55:48ZengIsfahan University of TechnologyJournal of Applied Fluid Mechanics1735-35721735-36452023-05-011681690170310.47176/jafm.16.08.17362253Balance of Efficiency and Security-influence on Slurry Transport from the Diffusion of Flow Passages of a Deep-sea Mining PumpZ. Zhu0Y. Lv1X. Su2J. Zhang3R. Wang4W. Lu5J. Sun6Zhejiang Sci-Tech University, Hangzhou 310000, ChinaZhejiang Sci-Tech University, Hangzhou 310000, ChinaZhejiang Sci-Tech University, Hangzhou 310000, ChinaZhejiang Sci-Tech University, Hangzhou 310000, ChinaZhejiang Sci-Tech University, Hangzhou 310000, ChinaZhejiang Sci-Tech University, Hangzhou 310000, ChinaTengda Construction Group LTD, Taizhou 318000, ChinaSlurry transport pumps, the central equipment of deep-sea mining (DSM) systems, provide the lifting power required for lifting mineral ores from the seafloor to the surface. The current technical challenges are associated with transport security and the economic aspects of coarse ore particles in pumps and pipelines. This paper focuses on the transportation characteristics of slurry pumps and uses theoretical methods, numerical calculations, and experimental methods to identify a feasible working mode. The geometric parameters of impeller channels in pump hydraulics significantly influence the migration properties of particles which in turn affects the overall security and economy of the system. The ratio of the impeller cross-sectional area F2/F1 (F1: cross-sectional area of the impeller outlet; F2: cross-sectional area of the impeller inlet) affects the particle passing capacity but negatively impacts pump efficiency. The percent of particles in the excellent passage interval of 0.2 s to 0.25 s increases from 25 to 43% when the number increases from 1.57 to 2.51. The pump behavior increases of the head by 5–10 m, and the efficiency decreases by 5–10%. So, the recommended span of F2/F1 is 1.57–2.00, and satisfying particle passing ability and efficiency can be achieved in this range. This study can provide a reference for the commercial transportation of slurry ores for deep-sea mining systems.https://www.jafmonline.net/article_2253_dcc9caec073102f3fc24edf077e09107.pdfdeepsea mining slurry transport pump solidliquid twophase flow flow channel diffusion cfddem coupling |
| spellingShingle | Z. Zhu Y. Lv X. Su J. Zhang R. Wang W. Lu J. Sun Balance of Efficiency and Security-influence on Slurry Transport from the Diffusion of Flow Passages of a Deep-sea Mining Pump Journal of Applied Fluid Mechanics deep sea mining slurry transport pump solid liquid two phase flow flow channel diffusion cfd dem coupling |
| title | Balance of Efficiency and Security-influence on Slurry Transport from the Diffusion of Flow Passages of a Deep-sea Mining Pump |
| title_full | Balance of Efficiency and Security-influence on Slurry Transport from the Diffusion of Flow Passages of a Deep-sea Mining Pump |
| title_fullStr | Balance of Efficiency and Security-influence on Slurry Transport from the Diffusion of Flow Passages of a Deep-sea Mining Pump |
| title_full_unstemmed | Balance of Efficiency and Security-influence on Slurry Transport from the Diffusion of Flow Passages of a Deep-sea Mining Pump |
| title_short | Balance of Efficiency and Security-influence on Slurry Transport from the Diffusion of Flow Passages of a Deep-sea Mining Pump |
| title_sort | balance of efficiency and security influence on slurry transport from the diffusion of flow passages of a deep sea mining pump |
| topic | deep sea mining slurry transport pump solid liquid two phase flow flow channel diffusion cfd dem coupling |
| url | https://www.jafmonline.net/article_2253_dcc9caec073102f3fc24edf077e09107.pdf |
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