Designs and parameters of stepping mechanisms for the complex of extraction of minerals scattered on the seabed

The work is devoted to the description of designs and parameters of stepping mechanisms for deep sea mining complex. The geological characteristics of ferromanganese nodules and cobalt-manganese crusts are considered. An analysis of existing analogues of mining technologies is carried out. Common components of all considered variants of mining complexes are analyzed, remarks which should be taken into account when developing new technologies of deep-water mining. The description of the proposed complex and comparison of its productivity at different rates of lifting and lowering of the extracted material are given. The estimated productivity by payload is considered to be profitable when the ascent speed of the filled reservoir is higher than 2 m/sec. The stepping algorithm is described and the movement speed of the auxiliary device for capturing and carrying the bottom equipment is calculated, based on the choice of a pumping unit with characteristics that allow working in the bottom area. It would take 9 minutes to move the collector or box-anchor with charging station to 30 meters. Experimental study of two samples of the support part of the stride mechanism on the influence of hydrodynamic forces of medium resistance during the movement of objects has been carried out, according to the results of which a conclusion has been made about the required design features of the support body of the displacement lever.

Yungmeister D. A., Smolenskii M. P., Isaev A. I., Efimov F. A. Designs and parameters of stepping mechanisms for the complex of extraction of minerals scattered on the seabed. MIAB. Mining Inf. Anal. Bull. 2023;(11-1):159-174. [In Russ]. DOI: 10.25018/0236_1 493_2023_111_0_159.

D.A. Yungmeister¹, Dr. Sci. (Eng.), Professor, Professor, e-mail: Yungmeyster_DA@pers.spmi.ru, ORCID ID: 0000-0001-7858-8340,
M.P. Smolenskii¹, Graduate Student, e-mail: s215053@stud.spmi.ru,
A.I. Isaev¹, Cand. Sci. (Eng.), Assistant Professor, e-mail: Isaev_AI@pers.spmi.ru,
F.A. Efimov, Engineer of 3rd Category, «Mekhanobr-Ural» LLC, Ekaterinburg, Russia, e-mail: fyodor_efimov99@mail.ru,
¹ Empress Catherine II Saint-Petersburg Mining University, 199106, Saint-Petersburg, Russia.

D.A. Yungmeister, e-mail: Yungmeyster_DA@pers.spmi.ru.

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