Substantiation of the Draghead Application as a Mining Unit in Conditions of Solid Minerals Deep-Sea Mining

International science and technology conference "Earth science"

Serzhan, S.L.^1 ; Trufanova, I.S.^1 ; Malevannyi, D.V.^1

Saint-Petersburg Mining University, 21st Line, 2, St.-Petersburg

199106, Russia^1

关键词: Alternative source;    Ferromanganese nodules;    Industrial scale;    Solid minerals;    Technical solutions;    Technological solution;    Vertical axis;    Working element;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/272/2/022048/pdf
DOI  :  10.1088/1755-1315/272/2/022048

来源: IOP

【 摘 要 】

Deep sea solid mineral resources (SMR) of the World Ocean, such as ferromanganese nodules (FMN), cobalt-manganese crusts (CMC) and the depth polymetallic sulphides (DPS) should become an alternative source of mineral resources in the near future. Reliable and productive complexes are necessary for the implementation of deep-sea mining on an industrial scale, which will be able to develop deposit with a minimum ecosystem load. So, the main problems in technological solutions are the collection or separation of SMR at the bottom and lifting them to the surface. As a technical solution, it is proposed to use a special construction draghead device for FMN and CMC collecting and separating from the bottom. The distinctive feature of the device is a vertical axis of rotation of the drive engine and the working body, which can be represented by a faceplate or a crown, the working element with the engine are concentrically inscribed in the casing with the catcher, which enclose the loosening zone, protecting surrounding water area from the turbulent mud and separated fractions. Nodules and crusts lifting using the draghead is carried out in the form of slurry through a pipeline.