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Monitoring the thermal and gaseous activity of coal waste dumps
Environmental Earth Sciences ( IF 2.8 ) Pub Date : 2020-10-06 , DOI: 10.1007/s12665-020-09229-3
Stanisław Wasilewski

Mine waste dumps are lasting landscape elements of mining impact areas, and several aspects of their negative influence on the environment are currently being considered. The presence of coal substances in the dump mass often leads to fire hazards. Therefore, monitoring plays an important role in preventing fires in spoil tips. This study presents a modern method for monitoring fire hazards in coal waste dumps. The thermal monitoring of large dumps requires the identification of the thermal conditions of a considerable area. Therefore, land scanning was conducted using a precise thermal imaging camera during aerial travel. Subsequently, at selected sites in a waste dump, a wireless system consisting of perforated pipes and probes with temperature and gas collectors was deployed to collect data from research wells. A numerical model considering features that may have the greatest impact on the endogenous fire phenomenon in spoil tip mass was developed. Model studies were conducted using computational fluid mechanics (CFD) tools for the adopted initial–boundary conditions and atmospheric parameters.



中文翻译:

监测垃圾场的热和气活动

矿山垃圾场是采矿影响区的持久景观元素,目前正在考虑其对环境的负面影响的几个方面。垃圾堆中煤物质的存在通常会引起火灾。因此,监测在防止弃渣尖起火中起着重要作用。这项研究提出了一种现代方法来监测煤场垃圾中的火灾隐患。对大型垃圾场的热监控需要识别相当大区域的热状况。因此,在空中旅行期间使用精密的热像仪进行了陆地扫描。随后,在废物堆场的选定地点,部署了一个无线系统,该系统由带孔的管道以及带有温度和气体收集器的探头组成,以从研究井收集数据。建立了考虑到可能对破坏尖端质量中的内生火灾现象产生最大影响的特征的数值模型。使用计算流体力学(CFD)工具对采用的初始边界条件和大气参数进行了模型研究。

更新日期:2020-10-07
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