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Aero-hydro-dynamic experimental research of the properties of the deepwater hydraulic hoist pipeline units

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Category: Mining

Last Updated on 19 March 2014

Published on 26 February 2013

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Authors:

O.G. Goman, Dr. Sci. (Phys.-Math.), Professor, O. Honchar Dnipropetrovsk National University, Professor of the Department of Aero-Hydro-Mechanics and Heat and Mass Transfer, Dnipropetrovsk, Ukraine

V.Ye. Kirichenko, Cand. Sci. (Tech.), Associate Professor, State Higher Educational Institution “National Mining University”, Assistant Lecturer of the Department of Automation and Computer Systems, Dnipropetrovsk, Ukraine

A.V. Romanyukov, State Higher Educational Institution “National Mining University”, postgraduate student, Senior Research Fellow of the Department of Mining Machines and Engineering, Dnipropetrovsk, Ukraine

Abstract:

Purpose. To choose a rational design of pipeline of deep water hydraulic hoist, which improves its fluidic characteristics to minimize the power consumption by the propellers of the carrier and eliminate the most hazardous aerohydroelastic instability.

Methodology. Technique and experimental program, which includes a detailed description of the test bench and test equipment has been developed. For the experiments we have used the existing wind tunnel and strain gage balance located in specialized aero hydrodynamic laboratories of Oles Honchar Dnipropetrovsk National University.

Findings. The analysis of the experimental results allowed choosing technically possible rational design of the pipeline of the hydraulic hoist at current stage of development of deep water mining. The feature of this design is that the pipeline system is locked with the cylindrical cover with gaps in areas of flanges. At the gaps of cover the installation of special cowlings reducing drag force has been proposed. Due to the series of experimental studies conducted for different types of cowlings their most suitable form has been selected and the geometric dimensions have been set.

Practical value. The selected design of deep water hydraulic hoist’s pipeline minimizes the carrier’s propellers power spent on dragging the pipeline in the water, which eventually results into decrease of the cost of the produced material, and also eliminates the possibility of the most dangerous types of flutter.

References:

1.       Гоман О.Г. Экспериментальные исследования аэроупругой неустойчивости элементов става / Гоман О.Г., Графский И.Ю., Кириченко Е.А. // Сб. науч. тр. НГАУ – Днепропетровск, 1998. – №2. – С. 400–417.

Goman, O.G., Grafskiy, I.Yu. and Kirichenko, Ye.A. (1998), “Experimental research of aero-hydro-elastic instability of the elements of the pipeline”, Sbornik nauchnykh trudov NGAU, no. 2, pp. 400–417.

2.       Кириченко Е.А. Исследование параметрического резонанса пульпопровода эрлифтного гидроподъема / Кириченко Е.А. // Збагачення корисних копалин. – 2000. – № 9. – С. 78–84.

Kirichenko, Ye. A. (2000), “Study of parametrical resonance of slurry pipeline of airlift hydrohoist”, Zbahachennya korysnykh kopalyn, no.9., pp. 78–84.

3.      Кириченко Е.А. Исследование собственных частот продольных колебаний трубного става глубоководного гидроподъема / Кириченко Е.А. // Геотехническая механика : межв. сб. научн. тр. ИГТМ НАН Украины. – Днепропетровск, 1999. – №18. – С. 75–80.

Kirichenko, Ye.A. (1999), “Study of the natural frequencies of the longitudinal oscillations of pipeline of deep water hydrohoist”, Geotekhnicheskaya mekhanika, IGTM NAN Ukrainy, no.18, p. 75–80.

4.    Кириченко Е.А. Исследование условий потери устойчивости транспортного трубопровода эрлифтного гидроподъема / Кириченко Е.А. // Гірн. електромеханіка та автоматика: наук.-техн. зб. – 2000. – №64. – С. 109–113.

Kirichenko, Ye.A. (2000), “Study of conditions of buckling of transportation pipeline of airlift hydrohoist”, Hirnycha elektromekhanika ta avtomatyka, no. 64, pp. 109–113.

5.     Кириченко Е.А. Механика глубоководных гидротранспортных систем в морском горном деле / Е.А. Кириченко – Днепропетровск: Национальный горный университет, 2009. – 334 с. –ISBN978-966-350-170-3.

Kirichenko, Ye.A. (2009), Mekhanika glubokovodnykh gidrotransportnykh sistem v morskom gornom dele, [Mechanics of the Deepwater Systems in Sea Mining], National Mining University, Dnepropetrovsk, Ukraine.

6.     Кириченко Е.А. Научное обоснование параметров трубных систем для гидроподъема полезных ископаемых: автореф. дис. на соискание научн. степени докт. техн. наук: спец. 05.05.06 „Горные машины“ / Е. А. Кириченко. – 2001. – 38 с.

Kirichenko, Ye.A. (2001), “Scientific substantiation of parameters of pipe systems for the hydraulic hoisting of minerals”, Abstract of Dr. Sci. (Tech.) dissertation, Mining Machines, National Mining University, Dnipropetrovsk, Ukraine.

7.     Гоман О.Г. Аэродинамические характеристики погружных конструкций системы для подводной добычи полезных ископаемых / Гоман О.Г., Графский И.Ю., Кириченко Е.А. // Сб. науч. тр. НГАУ. – Днепропетровск, 1998. – № 2. – С. 418–430.

Goman, O.G., Grafsky, I.Yu. and Kirichenko, Ye.A. (1998), “The aerodynamic characteristics of submerged constructions for the system of deep water minig”, Sbornik nauchnykh trudov NGAU, no. 2, pp. 418–430.

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