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Review of Linear Electric Motor Hammers—An Energy-Saving and Eco-Friendly Solution in Industry

Author

Listed:
  • Adam Wróblewski

    (Faculty of Geoengineering, Mining and Geology, Wroclaw University of Science and Technology, Na Grobli 15, 50-421 Wroclaw, Poland)

  • Pavlo Krot

    (Faculty of Geoengineering, Mining and Geology, Wroclaw University of Science and Technology, Na Grobli 15, 50-421 Wroclaw, Poland)

  • Radosław Zimroz

    (Faculty of Geoengineering, Mining and Geology, Wroclaw University of Science and Technology, Na Grobli 15, 50-421 Wroclaw, Poland)

  • Timo Mayer

    (Lekatech Oy, 47400 Kausala, Finland)

  • Jyri Peltola

    (Lekatech Oy, 47400 Kausala, Finland)

Abstract

Standard hydraulic breaking hammers are widely used for crushing oversized blasted materials and concrete structures demolition in industry. These hammers, installed in on-surface working excavators or stationary manipulators at the dumping points of underground conveyors, provide the required limited sizes of bulk materials and enable the safe operation of other equipment (screens, crushers). In parallel, hydraulic hammers have an alternative—fully electric hammers. This paper aims to review existing linear electric motor (LEM) hammers as an energy-saving and eco-friendly solution in industry. Global market analysis is presented with potential branches of LEM hammers. Several aspects for implementation—design optimization, dynamics simulation, machine control, and performance estimation—are considered. Different case studies for LEM-hammer application are given. The preliminary measurements are demonstrated on the electric hammer of Lekatech Company, which is intended for the mining industry and construction demolition. Experiments showed that depending on the impact frequency, type of rock, and shape of the crushing tool, the time to fracture varies significantly. Optimal parameters exist for every case, for which adjusting requires online hammer control.

Suggested Citation

  • Adam Wróblewski & Pavlo Krot & Radosław Zimroz & Timo Mayer & Jyri Peltola, 2023. "Review of Linear Electric Motor Hammers—An Energy-Saving and Eco-Friendly Solution in Industry," Energies, MDPI, vol. 16(2), pages 1-28, January.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:2:p:959-:d:1036160
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    References listed on IDEAS

    as
    1. Dawid Szurgacz, 2021. "Dynamic Analysis for the Hydraulic Leg Power of a Powered Roof Support," Energies, MDPI, vol. 14(18), pages 1-12, September.
    2. Milos Vukovic & Roland Leifeld & Hubertus Murrenhoff, 2017. "Reducing Fuel Consumption in Hydraulic Excavators—A Comprehensive Analysis," Energies, MDPI, vol. 10(5), pages 1-25, May.
    3. Victor Goman & Vladimir Prakht & Vladimir Dmitrievskii & Fedor Sarapulov, 2021. "Analysis of Coupled Thermal and Electromagnetic Processes in Linear Induction Motors Based on a Three-Dimensional Thermal Model," Mathematics, MDPI, vol. 10(1), pages 1-20, December.
    4. Piotr Bortnowski & Lech Gładysiewicz & Robert Król & Maksymilian Ozdoba, 2021. "Energy Efficiency Analysis of Copper Ore Ball Mill Drive Systems," Energies, MDPI, vol. 14(6), pages 1-14, March.
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    Cited by:

    1. Sergey Zhironkin & Dawid Szurgacz, 2023. "Mining Technologies Innovative Development II: The Overview," Energies, MDPI, vol. 16(15), pages 1-5, July.
    2. Adam Wróblewski & Arkadiusz Macek & Aleksandra Banasiewicz & Sebastian Gola & Maciej Zawiślak & Anna Janicka, 2023. "CFD Analysis of the Forced Airflow and Temperature Distribution in the Air-Conditioned Operator’s Cabin of the Stationary Rock Breaker in Underground Mine under Increasing Heat Flux," Energies, MDPI, vol. 16(9), pages 1-18, April.

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