Authors: S.L. Serzhan, D.V. Malevannyi

Title of the article: Technology of deep-water mining of solid minerals using an intermediate capsule

Year: 2023, Issue: 2, Pages: 49-56

Branch of knowledge: 2.8.8. Geotechnology, Mining machines (engineering)

Index UDK: 622.232

DOI: 10.26730/1816-4528-2023-2-49-56

Abstract: The paper presents the technology for the development of deep-sea deposits of solid minerals. In particular, the transport part of the mining process is considered. The analysis of mining and geological resources of deep-water deposits of iron ore and crusts is made, the average indicators of the conditions among the deposits belonging to the Russian Federation are highlighted. The existing underwater mining complexes, their principle of operation are considered, the disadvantages of using the flow method of mineral lifting are indicated. The necessity of dividing the transportation process into two stages, thereby carrying out lifting by the cyclic-flow method is indicated. The construction of the capsule with atmospheric air is described and its main elements and functions are considered. The technology using the capsule is described and the estimated production cycle is given. The formula for calculating the annual productivity of the transport stage of the technology is derived, taking into account the assumptions in the productivity of the soil intake device. The calculation of productivity was made on the basis of data on mining and geological conditions of iron ore deposit location in the Russian Exploration Region of the Atlantic Ocean. The obtained data was entered into the table. The productivity growth graph was plotted when the length of the semi-major axis of the ellipsoidal capsule changed from 1 meter to 25 meters. The value of the maximum possible productivity with the given ratio of axes was deduced.

Key words: underwater mining of solid minerals ferromanganese nodules underwater mining complex intermediate capsule hydraulic lifting of nodules

Receiving date: 16.03.2023

Approval date: 18.04.2023

Publication date: 17.05.2023

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