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Title:
AIR BUBBLE AMOUNT ADJUSTMENT DEVICE
Document Type and Number:
Japanese Patent JP2017002533
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an air bubble amount adjustment device that adjusts the amount of air bubbles in a transfer hose through which a resource containing mud is made to float from a seabed.SOLUTION: An air bubble amount adjustment device is fitted on a transfer hose through which a resource containing seabed mud is made to float using air bubbles, the transfer hose being hung down from a resource recovery vessel toward the seabed. The air bubble amount adjustment device includes: a main body pipe fitted at an intermediate location of the transfer hose; an air bubble chamber fitted on a side part of the main body pipe, for collecting air bubbles; an air bubble escape hole provided on the air bubble chamber for letting the collected air bubbles escape; an air bubble discharging hose connected to the air bubble escape hole, having an end with a bottom part thereof opened and filled with seawater inside, and letting the discharged air bubbles float; a valve that opens/closes the air bubble escape hole; and a float that moves the valve vertically to suit a water surface level of the air bubble chamber.SELECTED DRAWING: Figure 1

Inventors:
SAKAMOTO SHOICHI
Application Number:
JP2015116278A
Publication Date:
January 05, 2017
Filing Date:
June 09, 2015
Export Citation:
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Assignee:
SAKAMOTO YOSHIO
International Classes:
E02F3/88; E21C50/00
Domestic Patent References:
JP2013036419A2013-02-21
JP2013036421A2013-02-21
JP2011196364A2011-10-06
JP2010000999A2010-01-07
Foreign References:
US20140169989A12014-06-19
Attorney, Agent or Firm:
Kyosei International Patent Office