煤质在线检测技术研究现状

Research Status of Coal Quality Online Detection Technology

摘要: 本文聚焦煤质检测技术，指出其对煤炭高效清洁利用、能源安全及环保的关键作用。煤质检测核心指标包括工业分析(水分、灰分等)和元素分析(C, H, O, N, S)，传统检测方法操作复杂、耗时较长。随着光谱学技术发展，在线检测技术逐步应用，涵盖天然γ射线检测法、X射线检测法、拉曼光谱法和激光诱导击穿光谱法(LIBS)等。其中，近红外光谱法和激光诱导击穿光谱分析法已成熟，前者成本低、精度高但受样品状态影响，后者可全元素分析却面临重复性等问题。这些技术为煤炭工业可持续发展提供了重要支撑。

Abstract: This paper highlights the crucial significance of rapid and accurate coal quality testing technology for the efficient and clean utilization of coal, energy security, environmental protection, and industrial upgrading. It elaborates on the core indicators of coal quality testing, including industrial analysis indicators (moisture, ash, etc.) and elemental analysis indicators (C, H, O, N, S), and points out that traditional testing methods are complex, time-consuming, and unsuitable for modern industry. With the maturity of spectroscopy technology, online coal quality testing technologies have been applied, such as natural γ-ray detection, X-ray detection, Raman spectroscopy, near-infrared spectroscopy, and laser-induced breakdown spectroscopy (LIBS). Among them, near-infrared spectroscopy and LIBS have become mature technologies. The paper also analyzes the principles, advantages, and limitations of these technologies, which provide technical support for the sustainable development of the coal industry.