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Aerosol sensing technologies in the mining industry

机译：采矿业中的气溶胶传感技术

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Recent health, safety and environmental regulations are causing an increased demand for monitoring of aerosols in the mining industry. Of particular concern are airborne concentrations of combustible and toxic rock dusts as well as particulate matter generated from diesel engines in underground mines. In response, the National Institute for Occupational Safety and Health (NIOSH) has been evaluating a number of real time sensing technologies for potential use in underground mines. In particular, extensive evaluation has been done on filter-based light extinction using elemental carbon (EC) as a surrogate measurement of total diesel particulate matter (DPM) mass concentration as well as mechanical tapered element oscillating microbalance (TEOM) technology for measurement of both DPM and rock dust mass concentrations. Although these technologies are promising in their ability to accurately measure mine aerosols for their respective applications, there are opportunities for design improvements or alternative technologies that may significantly enhance the monitoring of mine aerosols. Such alterations can lead to increases in sensitivity or a reduction in the size and cost of these devices. This paper provides a brief overview of current practices and presents results of NIOSH research in this area. It concludes with a short discussion of future directions in mine aerosol sensing research.
机译：最近的健康，安全和环境法规导致采矿业对气溶胶监测的需求增加。空气中的可燃和有毒岩石粉尘浓度以及地下矿井中柴油机产生的颗粒物特别令人关注。作为回应，美国国家职业安全与健康研究所（NIOSH）一直在评估多种实时传感技术，以用于地下矿山。尤其是，已经对基于滤光片的消光进行了广泛的评估，其中使用元素碳（EC）作为总柴油颗粒物（DPM）质量浓度的替代测量以及机械锥形元素振荡微量天平（TEOM）技术来测量两者DPM和岩粉质量浓度。尽管这些技术在准确测量其各自应用的矿物质气溶胶方面具有前途，但仍有改进设计或替代技术的机会，这些技术或方法可以显着增强矿物质气溶胶的监测。这样的改变可以导致灵敏度的增加或这些设备的尺寸和成本的减小。本文简要概述了当前的做法，并提出了NIOSH在该领域的研究成果。最后对矿山气溶胶传感研究的未来方向进行了简短的讨论。

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