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1-9 of 9
Keywords: lifting pipe
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Proceedings Papers
Paper presented at the Ninth ISOPE Ocean Mining Symposium, June 19–24, 2011
Paper Number: ISOPE-M-11-021
... of experiments, this article presents a velocity data analysis on single, uniform group particles with a diameter range from 5 to 50 mm under different concentrations. EXPERIMENT SETUP AND METHODS The pipe system of the testing installation (Fig. 1) is composed of a main lifting pipe of 200 mm inner diameter...
Proceedings Papers
Paper presented at the Seventh ISOPE Ocean Mining Symposium, July 1–6, 2007
Paper Number: ISOPE-M-07-032
... surface. manganese nodule artificial lift system characteristic curve lifting pipe lifting motor pump nodule mining test lifting pump comra diameter metals & mining lifting technology stage lifting pump requirement cross-section lifting method impeller concentration upstream...
Proceedings Papers
Paper presented at the Fifth ISOPE Ocean Mining Symposium, September 15–19, 2003
Paper Number: ISOPE-M-03-014
... ABSTRACT: The movement of the lifting pipe influences not only its stability but also its flow efficiency. In order to investigate the effects, we developed a finite element model considering liquid and structural transients in a deep ocean mining pipe. Two examples are presented...
Proceedings Papers
Paper presented at the Second ISOPE Ocean Mining Symposium, November 24–26, 1997
Paper Number: ISOPE-M-97-013
... ABSTRACT: The lifting pipe system has been developed as one of the subsystems of the manganese nodule mining system supported by NEDO (New Energy Development Organization) directed by the Agency of Industrial Science and Technology the Ministry of International Trade and Industry of Japan...
Proceedings Papers
Paper presented at the Second ISOPE Ocean Mining Symposium, November 24–26, 1997
Paper Number: ISOPE-M-97-019
... (internal rate of return), and the sensitivity analysis of the IRR. banking & finance annual operating expense private company lifting pipe metal price collector processing plant economics hwang asset and portfolio management expenditure equilibrium price manganese nodule...
Proceedings Papers
Paper presented at the Second ISOPE Ocean Mining Symposium, November 24–26, 1997
Paper Number: ISOPE-M-97-014
... ABSTRACT: For two lifting pipe models which had been in literature proposed for production of manganese nodules out of water depth of 5,000m and 6,000m, respectively, nonlinear dynamic analyses on forced axial vibrations in vertical position and on 3-D tow behaviors are carried out in time...
Proceedings Papers
Paper presented at the Second ISOPE Ocean Mining Symposium, November 24–26, 1997
Paper Number: ISOPE-M-97-020
...) and the basic characteristics of solid-liquid two phase now transport, a calculating model was founded and the prediction and optimization of hydraulic lifting parameters of a manganese nodule mining system were made. The reasonable concentration, diameter of lifting pipe, velocity of mixture now, pressure...
Proceedings Papers
Paper presented at the Second ISOPE Ocean Mining Symposium, November 24–26, 1997
Paper Number: ISOPE-M-97-012
... ABSTRACT: A conventional lifting pipe for deep sea mining is usually very long and consist of many short pipe pieces. In order to connect these pipes, each piece must have a special connecting mechanism and this part is vulnerable to fatigue damage during local operation period. To improve...
Proceedings Papers
Paper presented at the First ISOPE Ocean Mining Symposium, November 21–22, 1995
Paper Number: ISOPE-M-95-010
... ABSTRACT: The motion characteristics of a towed collector for a manganese nodule mining system which consists of a mining ship, lifting pipes, flexible hoses and the collector are investigated by realistic computer simulations. The collector is controlled by the ship" s tow only. Three typical...