Manganese nodule collecting shovel

Abstract

The invention discloses an undersea mining machine which is a manganese nodule collecting shovel, wherein the manganese nodule collecting shovel is integrally formed by combining a frame main beam, a scraper bucket, relieving teeth, a central stirring shaft, an anti-sinking plate, an anti-sinking sledge, a front end traction tie and a rear end traction tie through welding, fastener connecting and other modes; a hoist on a mining dredger supplies power to the collecting shovel via cable wires so that the collecting shovel can continuously mine on a undersea surface with the bearing capacity less than 7 kpa, and can collect the manganese nodule with the grain diameter greater than 20mm. The cable wires can drive stirring shaft blades in the scraper bucket to clockwise and counterclockwise rotate back and forth; and the sediment is filtered through gaps of the scraper bucket. After the shovel finishes collecting, the cable wires lift the collecting shovel from the sea level, opens a side door and the scraper bucket inclines a certain degree so that the manganese nodule mine is poured in the mining carrying vehicle on a dredger. Under the collecting conditions of 5-7 kg / m<2> abundance ratio of the manganese nodule mine, taking depth of water 6000m as an example, the time of the single shovel mining is 1.5 hours (comprising auxiliary time), the weight of the mine is 200 tons, and the service life is more than 10 years.

Description

Technical field [0001] The invention relates to a seabed mining machine Background technique [0002] The 21st century is the century when mankind develops and utilizes the ocean. As the last undeveloped area of ​​mankind, the deep sea is rich in resources. It has become an important place for countries all over the world to fight for maritime rights, develop high-tech, carry out international cooperation and display their own strength, and will show unlimited commercial value. [0003] Manganese nodules are famous deep-sea minerals discovered in large numbers in the 1970s. The brown manganese nodules resemble potatoes, sliced ​​to see layers of onions. This kind of nodules is often based on shells, corals, fish bones, etc., and other materials are gathered around. The growth rate is slow, about 1mm in 1000 years, and some 1 million years until 4mm. Manganese nodules contain more than 20 elements such as manganese, iron, and nickel, and their economic value is very high. Manga...

AI Technical Summary

Problems solved by technology

Because there are more than 20 technical problems such as the development of high-power ultra-deep submersible motors, the positioning, attitude, walking, and measurement and control technology of the mining machine, the undulating and swaying of the mining ship and the expansion and contraction compensation device between the mining machine and so on.

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