SURFACE MINING
Original Paper
UDC 620.531 © A.S. Morin, V.I. Migunov, K.A. Shulgina, 2022
ISSN 0041-5790 (Print) • ISSN 2412-8333 (Online) • Ugol’ – Russian Coal Journal, 2022, № 10, pp. 33-39
DOI: http://dx.doi.org/10.18796/0041-5790-2022-10-33-39
Title
ANALYSIS OF THE AMPLITUDE VERSUS FREQUENCY RESPONSE CHARACTERISTIC OF VIBROACOUSTIC SIGNALS IN MONITORING THE TECHNICAL CONDITION OF AN OPEN-PIT DEWATERING PLANT
Authors
Morin A.S.1, Migunov V.I.1, Shulgina K.A.1
1Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Authors Information
Morin A.S., Doctor of Engineering Sciences, Associate Professor, Head of Department of Mining Machines and Complexes, e-mail: AMorin@sfu-kras.ru
Migunov V.I., Post-Graduate Student, Department of Mining Machines and Complexes, e-mail: VMigunov@sfu-kras.ru
Shulgina K.A., Post-Graduate Student, Department of Mining Machines and Complexes, e-mail: KShtresler@sfu-kras.ru
Abstract
The article is dedicated to enhancement of open-pit mine drainage system. The process of upgrading the main dewatering plant of a coal mine, which allowed to optimize its operation, is shown. An analytical justification of reasonable geometric and hydrodynamic parameters of a dewatering plant that uses polyethylene pipes according to requirements of GOST 18599-2001 is provided as well as recommendations developed for its operation. During the upgrading process, the technical condition of the pump units was inspected with the help of vibroacoustic signals depending on the current operating parameters of the dewatering plant. The amplitude versus frequency response characteristics of 1D630-90 pump in various (from emergency to optimum) operating modes are presented. The obtained characteristics are recommended to be used as the reference values when creating a data base for remote monitoring systems of 1D630-90 centrifugal pumps. It is specified, that the annual economic effect of the implemented measures will reach 2.9 million rubles with the pay-back period of additional capital investments of 10.5 months.
Keywords
Dewatering of open-pit mines, Centrifugal pump, Impeller, Cavitation, Chemical erosion, Feed, Head, Pipelines, Monitoring, Amplitude-frequency response, Diagnostics, Blade frequency.
References
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For citation
Morin A.S., Migunov V.I. & Shulgina K.A. Analysisof the amplitude versus frequency response characteristic of vibroacoustic signals in monitoring the technical condition of an open-pit dewatering plant Ugol’, 2022, (10), pp. 33-39. (In Russ.). DOI: 10.18796/0041-5790-2022-10-33-39.
Paper info
Received June 15, 2022
Reviewed July 18, 2022
Accepted September 26, 2022
