| 摘要 |
<p>PURPOSE:To make possible to economically dive utilizing ocean current and tidal current by providing a heavy metal absorbing device to a blade shaped body which is attitude-controlled by use of a ballast tank, tidal electric power generator, attitude control fin and attitude detector. CONSTITUTION:A heavy metal absorbing device 15, which is provided to a closed hollow shaped blade body 10 disposed with a control device for controlling a fin 18 on the basis of the output supplied from a ballast tank 17, tidal electric power generator 27, attitude control fin 18, attitude detector, is connected to a fixing stracture 12 by a lanyard 13. Thus, it is possible to recover heavy metal in sea water, with said device 15 dived into the sea water having sea current and/or tidal current, resulting in eliminating the effect of sea weather such as wave and wind. Further, since said device is dived in the sea water utilizing sea current and/or tidal current by means of the fixing structure in the sea bottom, the initial constructing cost is cheaper than that of a semi- diving marine structure or jack up type marine structure so that it is advantageous at an economic viewpoint.</p> |
