Authors: A.Y. Zakharov, A.V. Grigoriev, A.G. Zakharova, I.A. Lobur, N.M. Shauleva

Title of the article: Structural scheme of the device to detect longitudinal tears on conveyor belts with minimum influence of electromagnetic interference

Year: 2023, Issue: 1, Pages: 11-17

Branch of knowledge: 2.4.2. Electrotechnical complexes and systems (engineering)

Index UDK: 622.271.4:622.684

DOI: 10.26730/1816-4528-2023-1-11-17

Abstract: A longitudinal tear of a conveyor belt operating in a coal mine results in significant economic costs. The most promising direction for solving the problem of detecting a longitudinal tear can be considered the transfer of energy along the cross section of the conveyor belt in the form of electro-magnetic fields. However, for mine conditions (where there are electromagnetic fields for various purposes), in order to increase the reliability of the operation of the device, it is proposed to place the transmitter and the power source in the conveyor belt. The power supply and transmitter are connected by wires running across the tape. Receivers are installed in certain places on the supporting structure of the conveyor. If the connecting wires are intact, the permanent magnet installed on the carrier structure of the conveyor turns on the reed switch, the transmitter sends a signal to the receiver, which is also on the carrier structure of the conveyor, which receives this signal, then the logic unit processes the information. In the event of a longitudinal break in the conveyor belt, the connecting wires break and the transmitter does not send a signal, the logic block generates a command to turn off the conveyor. The article presents a block diagram of the proposed device for detecting a longitudinal tear of the belt, the layout of transmitters and receivers on a belt conveyor, block diagrams of various options for detecting a longitudinal rupture of the belt: with two reed switches; with one reed switch and with a Wiegand sensor. The requirements for the transmitter and receiver and directions for further research are formulated.

Key words: belt conveyors longitudinal tear a device to detect longitudinal tears on conveyor belts automated system to detect longitudinal tears on conveyor belts reed switch Wiegand sensor

Receiving date: 28.09.2022

Approval date: 01.12.2022

Publication date: 09.03.2023

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