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Distribution of marine mineral resource and advances of deep-sea lifting pump technology |
Xiao Yexiang1, Yang Lingbo2, Cao Lei1, Wang Zhengwei1 |
1.State Key Laboratory of Hydroscience and Engineering & Department of Thermal Engineering, Tsinghua University, Beijing 100084, China; 2.School of Mechanical Electronic and Information Engineering, China University of Mining and Technology, Beijing 100083, China |
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Abstract Ocean is a huge treasure rich in biotic and minerals resources as well as energy. Exploitation of marine resources is a new national strategic objective, and the pace of deep-sea mining needs to be accelerated. Due to poor working conditions, the requirements for mining equipment are so high that the research of mining system, especially for the lifting pump system is very important. The classification and global distribution of subsea mineral resources were described. The situation of deep-sea mining in China in detail was summarized. The lifting technology is an important part of deep-sea mining system, and the pipe lifting method is considered to be one of the most promising lifting me-thods, which includes hydraulic lifting, air lifting, light medium and heavy media lifting, et al. Slurry pump lifting and air lift pump lifting technology have been carried out in deep sea trials, proving that they have the best development prospects. Finally, the development of hydraulic lifting technology, highlighting the development prospect of slurry pump and its commercial applications were elaborated, when the trend of deep-sea mining was discussed.
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Received: 04 November 2013
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