Systematic Analysis of Energy Coal Mixtures in Judicial Practice. Case Study: Jiu Valley, Hunedoara County, Romania

Technical knowledge and/or determining the nature of certain coal wastes, often from old stockpiles, in order to remove them are two circumstances in which it is important to explain the types of coal that come into the composition of mixtures. The proposed approach is focused on identifying and describing the mineralogical-petrographic and physico-chemical properties that can contribute to a diagnosis in coal type differentiation. In the first stage of systematic research, mineralogical analysis is used to identify the various types of coal found in the sample. Granules are extracted from the various types of coal present in the sample and the characteristics that define them are determined: moisture and hygroscopic moisture content, volatile matter content, fixed carbon content, agglutination characteristics, and so on. In addition, the mixtures’ characteristics are calculated on another part of the sample, and their structure is determined using algebraic methods. There are times when an assessment of the amount of material in a stockpile or that can be stored in a dump is needed. This could be achieved by modelling the stockpile surface (upper surface) and the ground underneath the stockpile (lower surface) in CAD software, and then calculating the volume between the upper and lower surfaces, limited by the stockpile’s boundary.

Author (s) Details

Csaba Lorint
Department of Environmental Engineering and Geology, Faculty of Mining Engineering, University of Petrosani, Universitatii Street, No. 20, 332006, Romania

Eugen Traista
Department of Environmental Engineering and Geology, Faculty of Mining Engineering, University of Petrosani, Universitatii Street, No. 20, 332006, Romania

Adrian Florea
Department of Environmental Engineering and Geology, Faculty of Mining Engineering, University of Petrosani, Universitatii Street, No. 20, 332006, Romania

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