LIBS – A New Approach on Automating Extraction Machinery in Firedamp Atmospheres
LIBS – A New Approach on Automating Extraction Machinery in Firedamp Atmospheres
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LIBS â 一种在沼气气氛中自动化提取机械的新方法
DOI：
10.1007/978-3-319-02678-7_113
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发表时间：
2013
期刊：
影响因子：
--
通讯作者：
Nienhaus
中科院分区：
文献类型：
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作者：
Nienhaus
在无人参与的情况下高效开采矿物和煤炭矿床一直是过去几年人们特别感兴趣的话题。其原因多种多样。其中包括减少设备磨损以及优化开采流程和人员安全。采矿和冶金机械研究所 (IMR) 研究了各种采煤机自动化方法。最新的开发成果是基于热红外摄像机的系统，用于检测结构化煤层沉积物中的边界层。该项目是与采煤机装载机制造商合作进行的[1]。现在，IMR 正在研究一种利用激光诱导击穿光谱 (LIBS) 进行边界层检测的方法。 LIBS 是一种非接触式方法，可以测定任何聚集状态的任何样品表面所含的所有元素。LIBS 自动化采煤过程的主要挑战是地下煤矿中不断发生沼气爆炸的可能性。如果周围空气中的体积百分比为 4-14%，并且暴露于 ≥ 0.28 mJ 的点火能量，甲烷可能会爆炸，并另外引发随后的粉尘爆炸。用于 LIBS 测量的激光器超出了限制 160 倍以上。因此，需要开发一种在沼气气氛中进行 LIBS 分析的固有安全方法。 ATEX 指令是爆炸性环境中设备设计的指南，在该设备的开发中发挥了重要作用。本文将介绍用于对湿煤和干煤和废石样品进行采样的试验台的开发。它将更详细地介绍该项目，并描述当前的研究状况。该项目由德国研究基金会 (DFG) 资助，编号为 NI 631/2-1。
The efficient extraction of mineral and coal deposits without the presence of humans has been a topic of special interest within the last years. Reasons for that are various. Among them are the efforts to reduce wear and tear of the equipment as well as to optimize extraction processes and the safety of the personnel.The Institute for Mining and Metallurgical Machinery (IMR) has researched on various methods for automating shearer loaders. The latest development was a system based on thermal infrared cameras to detect boundary layers in structured seam deposits. This project was conducted in cooperation with a shearer loader manufacturer [1]. Now, the IMR is working on a method for utilizing laser-induced breakdown spectroscopy (LIBS) for boundary layer detection. LIBS is a contact-free method which can determine all elements contained in the surface of any sample in any aggregate state.The major challenge of LIBS for automating coal extraction processes is the constant possibility of firedamp explosions in underground coal mines. If present in a volumetric percentage of 4-14 % in ambient air and exposed to ignition energy of ≥ 0.28 mJ, methane can explode and additionally initiate a following dust explosion. Lasers utilized for LIBS measurements exceed the limitation by more than 160 times. Therefore, an inherent safe method for LIBS analyses in firedamp atmospheres needed to be developed. TheATEX Directivesare a guideline for the design of equipment in explosive atmospheres and played a major role in the development of this device.The paper will describe the development of a test rig which is utilized for sampling wet as well as dry coal and waste rock samples. It will give an insight into the project in greater detail and will describe the current state of research. The project is funded by the German Research Foundation (DFG) and is tagged with the ID NI 631/2-1.
激光诱导击穿光谱 (LIBS)：LIBS 的工业应用
DOI：
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发表时间：
2006
期刊：
影响因子：
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作者：
R. Noll;V. Sturm;M. Stepputat;Andrew J. O. Whitehouse;James Young;P. Evans
通讯作者：
P. Evans
研究激光诱导击穿光谱——一种用于煤炭开采过程的潜在自动化方法
DOI：
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发表时间：
2013
期刊：
影响因子：
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作者：
K. Nienhaus;Nina Fietz;Thomas Bartnitzki
通讯作者：
Thomas Bartnitzki
使用红外技术进行长壁采煤机自动化煤层边界检测
DOI：
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发表时间：
2010
期刊：
影响因子：
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作者：
K. Nienhaus;Manuel Warcholik;Fiona Mavroudis
通讯作者：
Fiona Mavroudis