Spiral flow mineral sucking and selecting device and method for separating seawater and minerals through device

Abstract

The invention discloses a spiral flow mineral sucking and selecting device and a method for separating seawater and minerals through the device.The device comprises a novel spiral mineral sucking device and a cyclone separation device connected with the novel spiral mineral sucking device; vortexes are generated by inducing and sucking water flow through a spiral flow guide plate (2) according to the tornado principle to suck up marine minerals through little energy consumption; solid granular minerals with the large weight generate cyclone centrifugal motion and achieve the downward settlement action by utilizing a cyclone separator through the cyclone and settlement action respectively and are finally discharged into a mineral collecting device through a mineral outlet, and therefore sludge and the seawater are together discharged through a sludge outlet of the cyclone separation device.According to the device, the slurry mixed with the minerals can be directly separated at the seabed, then only the minerals are lifted, not only can energy consumption be significantly reduced, but also the influence of marine benthos on marine upper-layer biotic environment can be reduced to the maximum limitation, and therefore submarine mining achieves sustainable development.

Description

technical field [0001] The invention relates to the fields of marine engineering and mechanical engineering, in particular to a swirl-effect-based spiral flow ore-suction ore-separation device directly operating on the seabed and a method for separating seawater and minerals. Background technique [0002] The ocean is the largest potential resource base on the earth that has not been fully understood and utilized by humans. In addition to offshore oil and gas resources and coastal mineral sands, the seabed is currently known to have commercial mining value as well as metal mineral resources such as polymetallic nodules, cobalt-rich crusts and polymetallic sulfides. These minerals are rich in nickel, cobalt, copper, manganese, gold and silver metals, etc., and the total reserves are dozens to thousands of times higher than the corresponding reserves on land. In 2013, my country officially obtained a Pacific cobalt-rich crust mining area. Obviously, the development of deep s...

AI Technical Summary

Problems solved by technology

This method is less affected by the deep sea environment, but it consumes a lot of energy. The mud also needs to be lifted by the slurry pump along with the minerals at the same time, which not only consumes unnecessary resources, but also the suspension mixed with mud passes through the simple filtration of the minerals on the mining ship. re-discharged into the sea

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