Development and Application of Air-Cooled Mine Flameproof Three-Phase Permanent Magnet Synchronous Electric Drum
DOI:
https://doi.org/10.54097/49xp7879Keywords:
Air-cooled, Permanent Magnet Synchronous Electric Drum, Belt Conveyor, Heat Dissipation StructureAbstract
To solve the poor heat dissipation problem of conventional permanent magnet synchronous electric drums, this paper analyzes the application difficulties of permanent magnet synchronous electric drums used in mine belt conveyors. Based on the working principle of permanent magnet direct-drive motors, an air-cooled mine flameproof three-phase permanent magnet synchronous electric drum is independently developed. Main performance tests of the permanent magnet direct-drive motor are carried out, including starting characteristics, power factor, transmission efficiency and heat dissipation performance. Field application is implemented on the belt conveyor of No.10 Coal Mine of Pingdingshan. The research results show that the developed air-cooled mine flameproof three-phase permanent magnet synchronous electric drum significantly improves the heat dissipation performance of the motor. The transmission efficiency of the whole system is increased by 17%, the maintenance frequency is reduced by 70%, the failure rate is decreased by 70%, and the operating noise is reduced by 18%. It can save the enterprise 17,900 yuan in power consumption cost and 28,000 yuan in maintenance cost every year, providing a new solution for the application of industrial conveying equipment under harsh working conditions.
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