| 摘要 |
The present invention relates to a dredging apparatus, a dredged soil transfer apparatus, and a method for same, with which the earth and sand on the seabed to be dredged are dredged and the dredged soil is transferred with ease from a dredging point to a dredged soil burial region in a case where the geological feature of the seabed of a dredging region is the earth and sand and the burial region of the dredged earth and sand are far apart from the dredging region. More particularly, two high-pressure pumps, a rotation phenomenon preventing device, an attraction generating device, a tapered pipe, a nozzle pipe, a guide pipe, an air compressor, a compressed air supply pipe, and the like are appropriately disposed and operated so as to improve the capability for dredging the earth and sand on the seabed. The air in the atmosphere is allowed to flow into a rotating type vortex generating device by an air supply device so that fluids are arranged and transferred in the order of air, seawater, and dredged soil from an inner wall of a dredged soil transferring pipe to the center of the pipe by the spiral vortex flow generated through the operation of the rotating type vortex generating device with respect to the air, the seawater, and the dredged soil transferred into the rotating type vortex generating device. The seawater and the dredged soil are not in direct contact with the inner wall of the dredged soil transferring pipe, and thus the energy loss due to a direction friction between the seawater and the dredged soil and the inner wall of the dredged soil transferring pipe is significantly reduced. By using this effect, a relatively large amount of dredging per unit time and a long-distance transfer of the dredged soil are possible with relatively low power, and thus the period of construction and the cost of construction can be significantly reduced. |
