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Experimental Studies of Air-Lift Pump for Deep Sea Mining

[+] Author Affiliations
Satoru Takano, Sotaro Masanobu, Shigeo Kanada, Masao Ono, Hiroki Sasagawa

National Maritime Research Institute, Tokyo, Japan

Paper No. OMAE2018-77812, pp. V006T05A014; 5 pages
  • ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering
  • Volume 6: Ocean Space Utilization
  • Madrid, Spain, June 17–22, 2018
  • Conference Sponsors: Ocean, Offshore and Arctic Engineering Division
  • ISBN: 978-0-7918-5125-8
  • Copyright © 2018 by ASME


The air-lift pumping system is one of the promising method for subsea mineral lifting. It is significant to figure out the relation between water flux and injected air volume or submergence ratio. In this paper, the authors conducted the experiment to obtain basic data for vertical air-lift pumping. As the results of the experiment, the water flux increased with increasing the submergence ratio. Then the water flux increased with increasing the injected air volume up to a value. In addition, the authors calculated the solid flux using large internal diameter of pipe. The calculated results are in good agreement with the experimental ones.

Copyright © 2018 by ASME



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