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Design and Test of Underwater Feeder for Deep-Sea Mining
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Guang'an YU1, Yang CAO2, Hao LYU3, Ruijie ZHAO3, Xinguang DU2
Mining and Metallurgical Engineering | 2026, 46(3) : 75 - 81
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Mining and Metallurgical Engineering | 2026, 46(3): 75-81
• SPECIAL TOPIC ON BREAKTHROUGHS IN KEY TECHNOLOGIES AND COORDINATED DEVELOPMENT OF INDUSTRIAL CHAINS FOR DEEP-SEA MINERAL RESOURCE EXPLOITATION •
Design and Test of Underwater Feeder for Deep-Sea Mining
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Guang'an YU1, Yang CAO2, Hao LYU3, Ruijie ZHAO3, Xinguang DU2
Affiliations
  • 1.Taihu Laboratory of Deepsea Technological Science, Wuxi 214082, Jiangsu, China
  • 2.China Ship Scientific Research Center, Wuxi 214082, Jiangsu, China
  • 3.Research Center of Fluid Machinery Engineering and Technology, Jiangsu University, Zhenjiang 212013, Jiangsu, China
doi: 10.3969/j.issn.0253-6099.2026.03.009
Outline
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The working principle and structural design method of the underwater feeder for deep-sea mining is presented in the paper. The discrete element method (DEM) is adopted to conduct a full-process simulation analysis of the dynamic feeding process of the feeder, which has been verified by land-based tests and water tank tests. It is found that at the rated rotational speed of 35 r/min, the actual feeding rate of the designed feeder reaches 11.1 t/h, which satisfies the design index of greater than 10 t/h; an eccentric feed inlet design can effectively reduce the resistance torque; and the error between the DEM simulation results and the land-based test results is controlled within 2%. A water tank test shows that the overall mineral collection rate exceeds 90%, which further verifies the reliability of the device under continuous underwater operation.

deep-sea mining  /  underwater feeder  /  conveying system  /  discrete element simulation  /  land-based test  /  water tank test  /  impeller  /  hydraulic motor  /  rotational speed
喻光安, 曹阳, 吕浩, 赵睿杰, 杜新光. 深海采矿水下给料装置设计与试验. 矿冶工程杂志, 2026 , 46 (3) : 75 -81 . DOI: 10.3969/j.issn.0253-6099.2026.03.009
Guang'an YU, Yang CAO, Hao LYU, Ruijie ZHAO, Xinguang DU. Design and Test of Underwater Feeder for Deep-Sea Mining[J]. Mining and Metallurgical Engineering, 2026 , 46 (3) : 75 -81 . DOI: 10.3969/j.issn.0253-6099.2026.03.009
Appendix
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Year 2026 volume 46 Issue 3
104
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Article Info
doi: 10.3969/j.issn.0253-6099.2026.03.009
  • Receive Date：2026-02-12
  • Online Date：2026-10-08
Article Data
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  • Received：2026-02-12
Funding
Affiliations
    1.Taihu Laboratory of Deepsea Technological Science, Wuxi 214082, Jiangsu, China
    2.China Ship Scientific Research Center, Wuxi 214082, Jiangsu, China
    3.Research Center of Fluid Machinery Engineering and Technology, Jiangsu University, Zhenjiang 212013, Jiangsu, 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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