Apparatus and process for undersea mining of mineral bearing sand and gravel
专利汇可以提供Apparatus and process for undersea mining of mineral bearing sand and gravel专利检索，专利查询，专利分析的服务。并且A process and mobile apparatus for the undersea mining of sand and gravel deposits containing gold particles and associated heavy minerals such as platinum, magnetite, etc., includes an excavating device which continuously excavates the sand and gravel material. Conveyor means receive the excavated sand and gravel and conveys the material to a discharge point which is located a predetermined distance above and a predetermined distance upstream from a screen type collection device. The predetermined difference in elevation and the downstream spacing between the collection device and the discharge point is so related to the ambient ocean current adjacent the ocean floor that separation of the sand and gravel discharged from the discharge point takes place as a result of the action of gravity and the subsurface ambient current acting on the material. The gold and associated metal particles (platinum, magnetite, etc.) and sand and gravel particles which are slightly coarser than the gold particles will be moved downstream by the ambient ocean current as the material falls and will be received by the collection device, while the sand particles will be carried downstream beyond the collection device, and the more coarse materials will fall upstream with respect to the collection device.，下面是Apparatus and process for undersea mining of mineral bearing sand and gravel专利的具体信息内容。
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