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为研究煤受热升温电磁辐射效应,建立了煤受热升温电磁辐射实验系统,对煤受热升温时产生的电磁辐射进行了实验研究,并对煤受热升温产生电磁辐射的机理进行了分析.结果表明:煤在受热升温过程中伴随有不同频率电磁辐射信号产生;电磁辐射与温度的升高呈正相关,温度越高,电磁辐射信号越强;电磁辐射能够反映煤在受热升温时的温度变化及变形破裂过程;电磁辐射是热致膨胀变形和热致胀裂的结果.
In order to study the electromagnetic radiation effect of coal heating and heating up, an experimental system of coal heating and heating electromagnetic radiation was established, the electromagnetic radiation generated when the coal was heated and heated was experimentally studied, and the mechanism of electromagnetic radiation generated by heating and heating of the coal was analyzed. Coal is accompanied by electromagnetic radiation signals with different frequencies during the heating process. Electromagnetic radiation is positively correlated with the temperature rise. The higher the temperature, the stronger the electromagnetic radiation signal. The electromagnetic radiation can reflect the temperature change and the deformation and rupture of the coal when it is heated Process; electromagnetic radiation is caused by thermal deformation and thermal expansion caused by thermal cracking.