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Experimental Study on the Performance of a Novel Unidirectional Explosive Element and an Explosive Logic Network

Author

Listed:
  • Fei Wang

    (State Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal Mines, Anhui University of Science and Technology, Huainan 232001, China
    Institute of Energy, Hefei Comprehensive National Science Center, Hefei 230031, China)

  • Honghao Ma

    (CAS Key Laboratory of Mechanical Behavior and Design of Materials, University of Science and Technology of China, Hefei 230026, China)

  • Zhaowu Shen

    (CAS Key Laboratory of Mechanical Behavior and Design of Materials, University of Science and Technology of China, Hefei 230026, China)

Abstract

Considering the unsafety of the present blasting network used in the blasting mining of coalfield fires, a unidirectional explosive element (named explosive diode) is proposed according to explosive logic element principles. Through theoretical and experimental analysis, the internal structure and mechanism of the unidirectional transmission of the detonation signal were studied. For an explosive diode, the length of the quenching channel was defined to be the key parameter. The explosive diode was implemented in the traditional blasting network, obtaining an explosive logic network. To evaluate the safety and reliability of the explosive diode and explosive logic network, detonation propagation and explosion-proof experiments were conducted in the lab. The optimum length of the quenching channel to obtain unidirectional detonation transmission was established. The results showed that the explosive diode could reliably control the propagation direction of the detonation signal when the length of the quenching channel was between 15 mm and 25 mm. The explosive logic network achieved a reliable detonation propagation and was explosion-proof. In comparison with traditional networks, the explosive logic network showed increased safety and reliability as the number of subnets increased. This is a significant improvement to mining safety and demonstrates great promise for engineering applications.

Suggested Citation

  • Fei Wang & Honghao Ma & Zhaowu Shen, 2022. "Experimental Study on the Performance of a Novel Unidirectional Explosive Element and an Explosive Logic Network," Energies, MDPI, vol. 15(14), pages 1-12, July.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:14:p:5141-:d:863729
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    References listed on IDEAS

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    1. Zhenlu Shao & Deming Wang & Yanming Wang & Xiaoxing Zhong & Xiaofei Tang & Xiangming Hu, 2015. "Controlling coal fires using the three-phase foam and water mist techniques in the Anjialing Open Pit Mine, China," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 75(2), pages 1833-1852, January.
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