| 摘要 |
A method and apparatus for removing silt, muck and other deposits from a water covered basin whose bottom has been covered with a relatively thick deposit, involving the use of a submerged housing unit supported from the surface in a controlled relationship to the deposits on the bottom of the basin. The submerged unit is provided with a gate at its forward end so as only to permit the entry of silt into the housing at the forward end as it is moved along the bottom, with the arrangement being such that a pressurized jet can be injected into the entering material to enable a workable mixture of water and silt to be achieved. Means are provided for then drawing the mixture to the surface so that the silt can be disposed of at a location outside the basin. Other facets of the invention include the use of automatic means for maintaining the submerged housing unit in a desirable relationship to the silt deposits; the use of a selectively operable gate at each end of the device so as to enable operation in either direction; and automatic means for injecting additional jets of water as needed to maintain proper consistency of the material being discharged.
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