Research on the Application of THz-TDS in Coal–Rock Interface Recognition

The recognition of coal–rock interface is very crucial for research in the intelligent production of coal mines. To this end, the study investigated the application of terahertz time-domain spectroscopy in the recognition of coal–rock interface, including the identification of coal–rock and coal–roc...

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Bibliographic Details
Published in:Applied sciences 2024-02, Vol.14 (4), p.1431
Main Authors: Jiang, Zichao, Meng, Tianhua, Yang, Chunhua, Huang, Lei, Liu, Hongmei, Hu, Weidong
Format: Article
Language:English
Subjects:
Coal industry
Coal mining
coal mining machines
coal–rock interface
Energy consumption
Fourier transforms
Identification
Interfaces
Lasers
Mineral industry
Mining industry
Mining machinery
Occupational health and safety
optical parameter
Radar
Spectrum analysis
Stone
terahertz detection
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Summary:The recognition of coal–rock interface is very crucial for research in the intelligent production of coal mines. To this end, the study investigated the application of terahertz time-domain spectroscopy in the recognition of coal–rock interface, including the identification of coal–rock and coal–rock mixtures, as well as the accurate characterization of coal seam thickness. Terahertz detection was used to obtain the optical parameter information of pressed pellets prepared by mixing two different kinds of coal and two kinds of rock. Based on the experiment’s results, a database was established for the identification of coal–rock interfaces for coal mining machines. The terahertz detection was performed on 10 different kinds of sheet anthracite with different thicknesses, and the terahertz spectra of coal seams with different thicknesses were simulated and calculated using simulation software. By comparing the two effective mining thicknesses, parameters can be provided for coal seam mining. The experiment and simulation show that the terahertz time-domain spectroscopy technology has a promising application prospect in the identification of coal–rock interface.
ISSN:2076-3417
2076-3417
DOI:10.3390/app14041431