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International Journal of Mining and Mineral Engineering最新文献

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Ultimate pit limit determination for fully mobile in-pit crushing and conveying systems 全移动式坑内破碎和输送系统的极限坑限测定
International Journal of Mining and Mineral Engineering Pub Date : 2019-01-01 DOI: 10.1504/IJMME.2019.104444
E. Hay, M. Nehring, P. Knights, M. Kizil
{"title":"Ultimate pit limit determination for fully mobile in-pit crushing and conveying systems","authors":"E. Hay, M. Nehring, P. Knights, M. Kizil","doi":"10.1504/IJMME.2019.104444","DOIUrl":"https://doi.org/10.1504/IJMME.2019.104444","url":null,"abstract":"Fully-mobile in-pit crushing and conveying systems have different pit shape requirements to traditional truck haulage systems due to linear bench and flat floor constraints imposed by conveyor systems. As the shape of a pit is largely based on the ultimate pit limit, it is desirable to have the additional shape requirements of fully mobile in-pit crushing and conveying systems included in the ultimate pit limit determination process. This paper discusses and highlights why there are different requirements for these systems, and what they are. A method of including these extra requirements during ultimate pit limit determination is presented. A case study has been included to show the method working, with scheduling of the pits to further highlight the viability of fully mobile in-pit crushing and conveying. This case study shows that through the reduced mining costs, a fully mobile in-pit crushing and conveying pit can return a higher net present value than the traditional truck and shovel pit for the same deposit. The development of this method provides the opportunity for the metalliferous industry to accurately determine ultimate pit limits for mines considering the use of fully mobile in-pit crushing and conveying systems.","PeriodicalId":38622,"journal":{"name":"International Journal of Mining and Mineral Engineering","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1504/IJMME.2019.104444","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66730898","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Structural analysis of Greek and Bulgarian coals by solid-state 13C nuclear magnetic resonance spectroscopy 用固态13C核磁共振光谱分析希腊和保加利亚煤的结构
International Journal of Mining and Mineral Engineering Pub Date : 2019-01-01 DOI: 10.1504/ijmme.2019.10026198
C. Apostolidou, A. Georgakopoulos
{"title":"Structural analysis of Greek and Bulgarian coals by solid-state 13C nuclear magnetic resonance spectroscopy","authors":"C. Apostolidou, A. Georgakopoulos","doi":"10.1504/ijmme.2019.10026198","DOIUrl":"https://doi.org/10.1504/ijmme.2019.10026198","url":null,"abstract":"In this study, 32 peat, xylite-rich and matrix lignites, and sub-bituminous coal samples from representative lignite and sub-bituminous coal basins of Greece and Bulgaria were used to investigate how their NMR differences reflect the organic matter origin, genesis conditions and coalification process in each one of these basins. The evolution of the major organic structural units in the samples was identified by using high-resolution, solid-state 13C nuclear magnetic resonance (NMR) spectroscopy, using a spectrometer with cross-polarisation and magic angle spinning. Solid-state 13C CP/MAS NMR is considered as a very powerful method for determining the chemical structure of complex organic substances such as coals of various ranks. To investigate a possible influence of paramagnetic species on the CPMAS-NMR spectra of the samples, electron paramagnetic resonance (EPR) spectroscopy was also applied. Similarities were observed between the spectra of coals of similar rank or of similar forming conditions. The peat-lignite and lignite-sub-bituminous coal transition is marked by pronounced differences in the NMR spectra, as do the different lithotypes of lignite, i.e., matrix and xylite-rich. Determination of the coal organic constituents offers valuable knowledge about the chemical and thermal behaviour of coals in order to investigate major issues associated with coal mining, combustion, and post-combustion processes.","PeriodicalId":38622,"journal":{"name":"International Journal of Mining and Mineral Engineering","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66730879","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Current state and development of continuous systems on EPS opencast lignite mines 露天矿EPS连续系统的现状与发展
International Journal of Mining and Mineral Engineering Pub Date : 2019-01-01 DOI: 10.1504/ijmme.2019.104451
D. Ignjatović, V. Pavlović, S. Mitrović, B. Jevtić
{"title":"Current state and development of continuous systems on EPS opencast lignite mines","authors":"D. Ignjatović, V. Pavlović, S. Mitrović, B. Jevtić","doi":"10.1504/ijmme.2019.104451","DOIUrl":"https://doi.org/10.1504/ijmme.2019.104451","url":null,"abstract":"Currently, opencast coal mines of Electric Power Industry of Serbia (EPS) produce about 40 million tonnes of lignite per year within two basins (Kolubara and Kostolac basins) and five opencast mines (Field C, Field D, Field G, Tamnava West Field and Drmno). On that basis, 70% of Serbia's electric power is being produced in Serbia. Since some opencast mines are undertaking closure procedure, it is necessary to open replacement capacities in order to maintain lignite production. This paper shows the current state, development perspectives, opening plans for new opencast mines and planned continuous mining systems which are foreseen to operate in the future time period.","PeriodicalId":38622,"journal":{"name":"International Journal of Mining and Mineral Engineering","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1504/ijmme.2019.104451","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66730978","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Percussive cutting of hard rocks with point attack picks: dependency of specific energy consumption and number of blows per unit length of cut groove on impact energy and cutting parameters 用点攻镐冲击切割坚硬岩石:单位长度切割槽的比能量消耗和击打次数与冲击能量和切割参数的关系
International Journal of Mining and Mineral Engineering Pub Date : 2019-01-01 DOI: 10.1504/ijmme.2019.104453
T. Shepel, C. Drebenstedt
{"title":"Percussive cutting of hard rocks with point attack picks: dependency of specific energy consumption and number of blows per unit length of cut groove on impact energy and cutting parameters","authors":"T. Shepel, C. Drebenstedt","doi":"10.1504/ijmme.2019.104453","DOIUrl":"https://doi.org/10.1504/ijmme.2019.104453","url":null,"abstract":"The development of sustainable technological solutions for the non-blasting excavation of hard rocks remains at the forefront of efforts of many researchers and engineers worldwide. This paper discusses the applicability of the percussive cutting method with the use of point attack picks for hard rock excavation applications. Based on laboratory test results, regression models describing dependencies of the specific energy consumption and the number of blows per unit length of cut groove on the impact energy and cutting parameters were developed. Several hard rocks such as sandstone, granodiorite and dolomite samples with respective uniaxial compressive strengths of 139 MPa, 205 MPa and 79 MPa, were used in the cutting tests. The study has demonstrated that effective cutting of rocks used in the tests is possible if the single impact energy exceeds 20-30 Joules per mm of cut depth. The currently achievable maximum cutting speed is discussed.","PeriodicalId":38622,"journal":{"name":"International Journal of Mining and Mineral Engineering","volume":"110 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1504/ijmme.2019.104453","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66731031","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Lignite mine monitoring and mapping using freely-available radar and optical satellite imagery 利用可免费获得的雷达和光学卫星图像监测和测绘褐煤矿
International Journal of Mining and Mineral Engineering Pub Date : 2019-01-01 DOI: 10.1504/ijmme.2019.10026188
M. Stefouli, A. Panagiotopoulou, E. Charou, Panagiota Spastra, E. Bratsolis, N. Madamopoulos, S. Perantonis
{"title":"Lignite mine monitoring and mapping using freely-available radar and optical satellite imagery","authors":"M. Stefouli, A. Panagiotopoulou, E. Charou, Panagiota Spastra, E. Bratsolis, N. Madamopoulos, S. Perantonis","doi":"10.1504/ijmme.2019.10026188","DOIUrl":"https://doi.org/10.1504/ijmme.2019.10026188","url":null,"abstract":"A methodology for monitoring and mapping lignite mining areas using Sentinel-1 and Sentinel-2 ESA Copernicus satellite systems is presented. A stochastic regularised super-resolution reconstruction (SRSR) for the enhancement of the Sentinel-2 optical data is developed, and a land monitoring/change analysis based on the enhanced Sentinel-2 images is performed. Additionally, the ground motion is monitored using the Sentinel-1 radar data via the Rheticus service. The proposed methodology is tested on the Amyntaio lignite mine in Ptolemais basin, Greece, for Sentinel images obtained from 2014 to 2018. The Amyntaio area has been of particular interest, as a landslide event occurred on June 10th, 2017, causing major operational disruption and a severe economic loss to the Public Power Plant Cooperation of Greece SA. The methodology proves to be useful for facilitating mapping and monitoring mining and post-mining areas facing similar problems with the Amyntaio lignite site.","PeriodicalId":38622,"journal":{"name":"International Journal of Mining and Mineral Engineering","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66731319","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Design and approval third party audit of material handling and mining equipment 设计和批准物料搬运和采矿设备的第三方审核
International Journal of Mining and Mineral Engineering Pub Date : 2019-01-01 DOI: 10.1504/ijmme.2019.10026195
P. Moczko, D. Pietrusiak, E. Rusiński
{"title":"Design and approval third party audit of material handling and mining equipment","authors":"P. Moczko, D. Pietrusiak, E. Rusiński","doi":"10.1504/ijmme.2019.10026195","DOIUrl":"https://doi.org/10.1504/ijmme.2019.10026195","url":null,"abstract":"","PeriodicalId":38622,"journal":{"name":"International Journal of Mining and Mineral Engineering","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66731339","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Assessment of social and environmental risks on opencast coal mines 露天煤矿社会环境风险评价
International Journal of Mining and Mineral Engineering Pub Date : 2019-01-01 DOI: 10.1504/ijmme.2019.104449
N. Pavlović, D. Ignjatović, V. Pavlović
{"title":"Assessment of social and environmental risks on opencast coal mines","authors":"N. Pavlović, D. Ignjatović, V. Pavlović","doi":"10.1504/ijmme.2019.104449","DOIUrl":"https://doi.org/10.1504/ijmme.2019.104449","url":null,"abstract":"The opening and development of large opencast coal mines with complex continuous mining systems is subject to a large number of risks. The process of assessing social and ecological risks is based on the analysis and determination of the probability of occurrence, the operation reliability of the opencast mine and the required costs to minimise the impact of risk. Social risks are related to sustainable development, harmonisation with the local community and government legislation. Environmental risks can be controlled, when it comes to sustainable mining, and partially uncontrolled, in relation to natural disasters. Together they represent a serial stochastic process with probabilities which define the reliability of the mine. Detailed quantitative and qualitative risk analyses of opencast coal mine Tamnava-West Field have been examined and compared, with a commentary on the obtained results.","PeriodicalId":38622,"journal":{"name":"International Journal of Mining and Mineral Engineering","volume":"115 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1504/ijmme.2019.104449","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66730962","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
A cloud-based near real-time slope movement monitoring system 基于云的近实时边坡移动监测系统
International Journal of Mining and Mineral Engineering Pub Date : 2019-01-01 DOI: 10.1504/ijmme.2019.10026199
C. Steiakakis, Georgia Papavgeri, Nikos Steiakakis, Z. Agioutantis, P. Schilizzi
{"title":"A cloud-based near real-time slope movement monitoring system","authors":"C. Steiakakis, Georgia Papavgeri, Nikos Steiakakis, Z. Agioutantis, P. Schilizzi","doi":"10.1504/ijmme.2019.10026199","DOIUrl":"https://doi.org/10.1504/ijmme.2019.10026199","url":null,"abstract":"A cloud-based near real-time data management system for geotechnical monitoring that can efficiently record, transfer, store, manage, process, analyse and evaluate monitoring data and generate easy to view and use information is presented. The database structure and manual of the system functionalities for addressing issues during data upload and processing, record handling for multisensory devices, data visualisation using common reference dates, data error correction and parametric handling of import files are presented in detail. New features that are in development include a more robust warning system and a journaling system for visual observations. The system can reliably and quickly generate alarms and information about excessive movements with respect to mining and other operations that require monitoring.","PeriodicalId":38622,"journal":{"name":"International Journal of Mining and Mineral Engineering","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66730886","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Exploring the effect of physical, human and technical factors on bucket wheel excavators' efficiency: a fuzzy cognitive map approach 探讨物理、人文和技术因素对斗轮挖掘机效率的影响:一种模糊认知图方法
International Journal of Mining and Mineral Engineering Pub Date : 2019-01-01 DOI: 10.1504/ijmme.2019.104447
M. Menegaki, T. Michalakopoulos, C. Roumpos
{"title":"Exploring the effect of physical, human and technical factors on bucket wheel excavators' efficiency: a fuzzy cognitive map approach","authors":"M. Menegaki, T. Michalakopoulos, C. Roumpos","doi":"10.1504/ijmme.2019.104447","DOIUrl":"https://doi.org/10.1504/ijmme.2019.104447","url":null,"abstract":"Several parameters, e.g., characteristics of the excavated material, number and thickness of lignite layers, bucket wheel capacity, experience of personnel, etc., affect the efficiency of bucket wheel excavators (BWEs). In this paper, the fuzzy cognitive map (FCM) approach is used to explore the factors affecting the efficiency of BWEs as well as their interlinkages and interdependencies, based on an extensive review of scientific literature and expert intervention. The main goal is to provide a transparent and flexible model and propose a different simulation approach for complex mining systems that can interconnect the factors influencing system's behaviour. The implementation of the proposed model revealed significant differences in BWEs' efficiency under favourable and hostile conditions. This is a first step towards simulations intended to help mining practitioners, bridging the gap between 'pure' qualitative and quantitative approaches.","PeriodicalId":38622,"journal":{"name":"International Journal of Mining and Mineral Engineering","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1504/ijmme.2019.104447","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66730907","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Surface mining in Western Macedonia, Greece: fugitive dust (PM10) emissions and dispersion 希腊马其顿西部的露天采矿:粉尘(PM10)的排放和扩散
International Journal of Mining and Mineral Engineering Pub Date : 2019-01-01 DOI: 10.1504/ijmme.2019.104448
A. G. Triantafyllou, S. Andreadou, N. Moussiopoulos, S. Garas, I. Kapageridis, Georgios Tsegas, C. Diamantopoulos, Ch. Sachanidis, I. Skordas
{"title":"Surface mining in Western Macedonia, Greece: fugitive dust (PM10) emissions and dispersion","authors":"A. G. Triantafyllou, S. Andreadou, N. Moussiopoulos, S. Garas, I. Kapageridis, Georgios Tsegas, C. Diamantopoulos, Ch. Sachanidis, I. Skordas","doi":"10.1504/ijmme.2019.104448","DOIUrl":"https://doi.org/10.1504/ijmme.2019.104448","url":null,"abstract":"In the operation of large open-pit lignite mines (extracting and handling excavation materials) a series of significant fugitive dust emission sources are recorded. The quantification of the emissions of each source and the investigation of atmospheric dispersion are subjects of great interest for the development and implementation of air quality management systems in the neighbouring residential areas. The study aims to investigate and locate the fugitive dust sources in the surface mines operated in Western Macedonia in NW Greece and quantify their contribution to the total fugitive dust (PM10) emissions produced by the mines' activities. The contribution of each emission source recorded was quantified. An effort was also made to investigate the dispersion of fugitive dust emitted from each individual mine and source activity and assess the contribution of the mining activities to the air quality of the surrounding areas, by using a three-dimensional, nestable, prognostic meteorological, and air pollution model. The results can contribute to the implementation of measures and scenarios for the air quality management in the area.","PeriodicalId":38622,"journal":{"name":"International Journal of Mining and Mineral Engineering","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1504/ijmme.2019.104448","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66730918","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
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