# Comparison of different types of starting the belt conveyor of the coal mines

The paper is devoted to the problem of starting an asynchronous electric motor of a belt conveyor, which is an urgent problem in the coal mining industry, where the belt conveyor is one of the most common transport mechanisms. It is considered how the tension of the belt affects the start of the conveyor, and what critical situations can occur when starting the conveyor. For the study, three main methods of starting the electric motor were chosen: direct start from the mains, starting the motor using a soft starter and using a frequency converter. To study the starting modes, a mathematical model of the conveyor was developed as a system with lumped parameters. The model is assembled from elementary blocks in the MATLAB Simulink environment. Comparison with other studies has shown the adequacy of the created mathematical model. The research results show that starting the conveyor with a soft starter slightly reduces the starting currents of the motor and allows reducing the dynamic moment of resistance in the belt. The use of a frequency converter can significantly reduce both inrush currents and the dynamic moment of resistance, which makes it possible to reduce wear of the belt, the lining of the drive drum and reduce energy consumption.

Keywords: belt conveyor, asynchronous electric drive, soft starter, frequency converter, mathematical modeling, belt tension, driving drum, lumped parameters.
For citation:

Kotin D. A., Sukhinin S. E., Ivanov I. A. Comparison of different types of starting the belt conveyor of the coal mines. MIAB. Mining Inf. Anal. Bull. 2022;(12-2):129—142. [In Russ]. DOI: 10.25018/0236_1493_2022_122_0_129.

Acknowledgements:
Issue number: 12
Year: 2022
Page number: 129-142
ISBN: 0236-1493
UDK: 622.647.2-83
DOI: 10.25018/0236_1493_2022_122_0_129
Article receipt date: 24.01.2022
Date of review receipt: 27.09.2022
Date of the editorial board′s decision on the article′s publishing: 10.11.2022

Kotin D. A., Cand. Sci. (Eng.), Associate Professor, http://orcid.org/0000-0003-3879-3029, Novosibirsk state technical university,630073, Novosibirsk, Russia, e-mail: d.kotin@corp. nstu.ru;
Sukhinin S. E., postgraduate student, https://orcid.org/0000-0003-4149-7757, Novosibirsk state technical university,630073, Novosibirsk, Russia, e-mail: s.suxinin@corp.nstu.ru;
Ivanov I. A., postgraduate student, assistant, https://orcid.org/0000-0001-7189-8178, Novosibirsk state technical university,630073, Novosibirsk, Russia, e-mail:i.a.ivanov@ corp.nstu.ru.

For contacts:

Sukhinin S. E., e-mail: s.suxinin@corp.nstu.ru

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