优化露天采煤作业:利用气象条件除尘和扩散

IF 6.9 1区 工程技术 Q2 ENERGY & FUELS International Journal of Coal Science & Technology Pub Date : 2024-06-29 DOI:10.1007/s40789-024-00699-5
Zhiming Wang, Wei Zhou, Izhar Mithal Jiskani, Junlong Yan, Huaiting Luo
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摘要

中国露天煤矿(OPCM)的粉尘污染威胁着资源开发与环境保护的共存。本研究介绍了一种基于气象指标的露天煤矿除尘和扩散设计新方法。它分析了中国大型 OPCM 的生产、分布和粉尘排放特征。同时还研究了影响粉尘扩散的因素和大气污染特征。研究结果表明,OPCM 的数量和产量激增,加剧了资源开发与环境保护之间的矛盾。值得注意的是,80% 以上的 OPCM 位于干旱和半干旱地区,这加剧了挑战。小气候效应,包括环流和反转效应,进一步加剧了沙尘污染。区域和季节性沙尘污染模式已经确定,南部地区的污染水平最高,其次是北部和中部地区。从季节上看,沙尘污染呈现以下规律:冬季;秋季;春季;夏季。过去二十年来,大气自净能力的下降令人担忧,这凸显了沙尘控制面临的紧迫挑战。空气停滞天数/事件的增加凸显了采取有效粉尘防控措施的紧迫性。这项研究建议在设计 OPCM 以控制粉尘时考虑气象因素。根据天气预报优化采矿作业,可利用自然条件有效防控粉尘。研究结果为露天矿的粉尘防控提供了启示,以促进绿色和气候智能型采矿业的发展。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

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Optimizing open-pit coal mining operations: Leveraging meteorological conditions for dust removal and diffusion

Dust pollution from Chinese open-pit coal mines (OPCMs) threatens the coexistence of resource development and environmental protection. This research introduces a new approach to designing OPCMs based on meteorological indicators for dust removal and diffusion. It analyzes the production, distribution, and dust emission features of large-scale OPCMs in China. The factors affecting dust dispersion and atmospheric pollution characteristics were also examined. The findings reveal a surge in the number and output of OPCMs, intensifying the conflict between resource development and environmental protection. Notably, over 80% of OPCMs are in arid and semi-arid regions, exacerbating the challenge. Microclimate effects, including circulation and inversion effects, further amplify dust pollution. Regional and seasonal dust pollution patterns were identified, with the southern region experiencing the highest pollution levels, followed by the northern and central regions. Seasonally, dust pollution exhibits the following pattern: winter > autumn > spring > summer. An alarming decline in atmospheric self-cleaning capacity over the past two decades underscores the pressing challenges ahead for dust control. The increase in air stagnation days/events highlights the urgency for effective dust prevention and control measures. This research suggests considering meteorological elements in OPCM design for dust control. Optimizing mining operations based on weather forecasts enables the utilization of natural conditions for effective dust prevention and control. The results provide insights for dust prevention and control in open-pit mines to foster green and climate-smart mining.

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来源期刊
CiteScore
11.40
自引率
8.40%
发文量
678
审稿时长
12 weeks
期刊介绍: The International Journal of Coal Science & Technology is a peer-reviewed open access journal that focuses on key topics of coal scientific research and mining development. It serves as a forum for scientists to present research findings and discuss challenging issues in the field. The journal covers a range of topics including coal geology, geochemistry, geophysics, mineralogy, and petrology. It also covers coal mining theory, technology, and engineering, as well as coal processing, utilization, and conversion. Additionally, the journal explores coal mining environment and reclamation, along with related aspects. The International Journal of Coal Science & Technology is published with China Coal Society, who also cover the publication costs. This means that authors do not need to pay an article-processing charge.
期刊最新文献
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