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Research on Type Selection of Lift Pipe and Hydrodynamic Parameters Check for Underwater Transport System in Deep-Sea Mining
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Ming ZHANG1, Hao ZHENG1, Manhong LI1, Xiaoyan LI1, Huanfeng SONG2
Mining and Metallurgical Engineering | 2023, 43(5) : 37 - 41
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Mining and Metallurgical Engineering | 2023, 43(5): 37-41
• MINING •
Research on Type Selection of Lift Pipe and Hydrodynamic Parameters Check for Underwater Transport System in Deep-Sea Mining
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Ming ZHANG1, Hao ZHENG1, Manhong LI1, Xiaoyan LI1, Huanfeng SONG2
Affiliations
  • 1.State Key Laboratory of Exploitation and Utilization of Deep Sea Mineral Resources, Changsha Research Institute of Mining and Metallurgy Co Ltd, Changsha 410012, Hunan, China
  • 2.Shanghai Branch of China Ship Scientific Research Center, Shanghai 200011, China
Published: 2023-10-01 doi: 10.3969/j.issn.0253-6099.2023.05.008
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In order to explore the reliability of type selection in the design of lift pipe for underwater transport system in deep sea mining, hydrodynamic parameters were checked with transport indices as input for design. Based on the settling velocity of polymetallic nodules, anti-fatigue threaded sleeve of P110 steel, with outer diameter of 244.48 mm and wall thickness of 20.24 mm, was selected for lift pipe. And a towing test performed in a pool shows that the resistance drag coefficient is 1.4 for the lift pipe at the upper end of the pump and 1.3 at the lower end of the pump. Hydrodynamic parameters were calculated and analyzed for the underwater transport system according to working conditions and launching conditions, showing that the safety factor of lift pipe can meet the requirements of API RP 2RD Standard. In the deep-sea polymetallic nodules mining test project, lift pipe in the at-sea acceptance test, with reliable joint connection, could meet the requirement for each transporting parameter, which has verified that the type selection of lift pipe in the design is acceptable.

deep sea mining  /  underwater transport system  /  lift pipe  /  hydrodynamics  /  pipeline transport
Ming ZHANG, Hao ZHENG, Manhong LI, Xiaoyan LI, Huanfeng SONG. Research on Type Selection of Lift Pipe and Hydrodynamic Parameters Check for Underwater Transport System in Deep-Sea Mining[J]. Mining and Metallurgical Engineering, 2023 , 43 (5) : 37 -41 . DOI: 10.3969/j.issn.0253-6099.2023.05.008
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Year 2023 volume 43 Issue 5
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Article Info
doi: 10.3969/j.issn.0253-6099.2023.05.008
  • Receive Date：2023-05-05
  • Online Date：2026-03-05
  • Published：2023-10-01
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  • Received：2023-05-05
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Affiliations
    1.State Key Laboratory of Exploitation and Utilization of Deep Sea Mineral Resources, Changsha Research Institute of Mining and Metallurgy Co Ltd, Changsha 410012, Hunan, China
    2.Shanghai Branch of China Ship Scientific Research Center, Shanghai 200011, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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