Authors: S.L. Serzhan, D.V. Malevannyi, E.V. Fedorov, L.M. Dadayan

Title of the article: Prospects of application of a production complex with a capsule in the conditions of mining on the Russian Federation shelf iron-manganese nodules

Year: 2022, Issue: 4, Pages: 3-11

Branch of knowledge: 05.05.06 Mining machines

Index UDK: 622.23, 629.051

DOI: 10.26730/1816-4528-2022-4-3-11

Abstract: The paper considers the principal technologies for the development of deep-sea deposits of solid minerals. In particular, we consider the shelf deposits of iron-manganese nodules. The analysis of mining and geological resources of the occurrence of iron-manganese nodule deposits on the shelf is made, the average indicators of the conditions among the deposits of the Russian Federation shelves are highlighted. The existing underwater extraction complexes, their principle of operation are considered, and the classification of extraction and transportation machines by the type of energy used is reviewed. The necessity of dividing the process of extraction and transportation into two separate machines, interconnected in time and space and forming a complex, is outlined. The method of transportation of ferromanganese nodules by means of a submersible capsule filled with atmospheric air has been proposed and justified. A mathematical model for determining the rational depth of capsule immersion has been constructed. The model was calculated for the depth range from 50 to 300 meters, with a step of 50 meters. The capacity of the extraction complex and the efficiency of the capsule utilization at the given depth range were calculated. The energy consumption of the complex without and with the use of the capsule was calculated. The graphs of the dependence of the energy intensity of the process on the used method of lifting are plotted. The effect of using a submersible capsule is shown, and the type of effect depending on the immersion depth is determined.

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

Receiving date: 02.06.2022

Approval date: 15.07.2022

Publication date: 08.09.2022

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