Abstract
In the long-term accumulation process, coal gangue can lead to severe consequences such as spontaneous combustion and explosions due to external factors. Additionally, the coal gangue that ignites spontaneously significantly pollutes the land and groundwater, causing serious risks to the health and safety of individuals living and working in the vicinity. Therefore, to mitigate the risk of spontaneous combustion resulting from the long-term accumulation of coal gangue, a monitoring system based on LoRa wireless communication technology is proposed to collect and monitor the internal temperature of coal gangue mountains in real time. In the laboratory, active temperature rise monitoring was conducted on the simulated coal gangue pile to effectively observe the range of temperature diffusion. Simultaneously, field tests were performed in the coal gangue mountain at the coal mine. The laboratory simulation and field test results demonstrate that the system can effectively monitor the internal temperature changes of the gangue mountain, particularly within the horizontal range of 0–0.2 m near the heat source and the vertical range of 0–0.3 m. In addition, the system test indicates that the maximum effective transmission distance for penetration between the main control station and the node is 8 m, while the distance between the nodes is 7.14 m. The system demonstrates strong feasibility for monitoring and providing early warnings regarding the internal temperature of the coal gangue mountain.
Recommended Citation
X. Liu et al., "Research On Wireless Monitoring System For Internal Temperature Field Of Coal Gangue Mountain," Case Studies in Thermal Engineering, vol. 66, article no. 105742, Elsevier, Feb 2025.
The definitive version is available at https://doi.org/10.1016/j.csite.2025.105742
Department(s)
Mining Engineering
Publication Status
Open Access
Keywords and Phrases
Coal gangue mountain; Internal temperature field; Methods of monitoring; Spontaneous combustion; Wireless transmission
International Standard Serial Number (ISSN)
2214-157X
Document Type
Article - Journal
Document Version
Final Version
File Type
text
Language(s)
English
Rights
© 2025 Elsevier, All rights reserved.
Creative Commons Licensing
This work is licensed under a Creative Commons Attribution 4.0 License.
Publication Date
01 Feb 2025
Comments
Anhui University of Science and Technology, Grant None