Revista Minelor

Mining Revue

REVISTA MINELOR

<abstract>
<title style='display:none'>Abstract</title>
A small increase in the relative humidity in the air in a coal deposit can cause a 1% increase in the moisture content of the deposit resulting in the probability of spontaneous ignition. By depositing the freshly extracted coal over the coal already in the deposit, there is a direct contact between the two surfaces that have different characteristics in terms of physical and chemical properties, so that the latter acts as a primer.
The coal with a higher temperature gives up the excess temperature to the coal with a lower temperature, thus initiating the formation of self-heating nuclei followed by self-ignition ones. The phenomenon is easy to observe in the colder periods of the season and especially usually after rain, when the vapors resulting from the exchange of temperature between the two types of coal are released into the atmosphere.
The common cause is the movement of water vapor through the deposit correlated with the adsorption on the coal granules. The heat of condensation of vapor at storage temperature is about 580 cal./gram of water. Condensing the amount of water required to increase the content from 3% of the weight of the coal to 4% leads to an increase in the temperature of the coal by more than 170C. This increase in temperature is sufficient to increase the oxidation rate by 5 times.
</abstract>

Abstract

Keywords

<article-title>Studies on Lignite Quality Depending on Storage Conditions</article-title>

Studies on Lignite Quality Depending on Storage Conditions

{"article-title":"Studies on Lignite Quality Depending on Storage Conditions"}

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Mining Revue ist in den folgenden Services indiziert: <ul> <li> Baidu Scholar </li> <li> CNKI Scholar (China National Knowledge Infrastructure) </li> <li> CNPIEC - cnpLINKer </li> <li> Dimensions </li> <li> EBSCO </li> <li> ExLibris </li> <li> Google Scholar </li> <li> J-Gate </li> <li> KESLI-NDSL (Korean National Discovery for Science Leaders)　 </li> <li> MyScienceWork </li> <li> Naver Academic </li> <li> Naviga (Softweco) </li> <li> ReadCube </li> <li> SCILIT </li> <li> Semantic Scholar </li> <li> TDOne (TDNet) </li> <li> WanFang Data </li> <li> WorldCat (OCLC) </li> <li> X-MOL </li> </ul>

Revista Minelor/Mining Revue is a quarterly publication belonging to the UNIVERSITY OF PETROȘANI, ROMANIA, which publishes original articles on various aspects of the mining field. Over the years, the publication appeared under several names: <UL> <LI>1918 - 1941 “Analele Minelor din România” / Mining Engineers Association, Bucharest - 12 numbers/year numbered from year 1/1918 no. 1-12 to year 24/1941 no.1-12; </LI> <LI>1950 - 1974 “Revista Minelor” / Body of the Scientific Association of Technicians from R.P.R and of the Ministry of Mines and Petroleum, Bucharest, 12 numbers/year numbered from year 1/1950 no.1-12 and so to 1974; </LI> <LI>1974 - 1990 “Mine. Petrol. Gaze” / Body of the Ministry of Mines. Petroleum. Gases from R.S.R., Bucharest, 12 numbers/year numbered from year I/1974 no. 1-12 to 1989; </LI> <LI>1991 - 2010 “Revista Minelor” / University of Petrosani and General Directorate of Mineral Resources, Infomin Deva Publishing House, numbered from volume I no. 1-12 and so on until year 2010; </LI> <LI>2011 – 2020 Revista Minelor/Mining Revue ISSN-L 1220-2053/ISSN 2247-8590/ University of Petrosani – Universitas Publishing House, Vol. 17 – Vol. 26; </LI> <LI>2021 – Revista Minelor/Mining Revue ISSN-L 1220-2053/ISSN 2247-8590/ University of Petrosani – SCIENDO. </LI> </UL> In order for the articles to be published, it is necessary that they have not been previously published or that they are not being verified/published in another journal, the responsibility for the content of the papers belonging exclusively to the authors. All articles must be sent electronically via email to <A href="mailto:mining-revue@upet.ro">mining-revue@upet.ro</A> The paper must be written in English, in MS-Word 2003 format or a newer one, according to the writing requirements. For this, please use the existing template. All articles will be reviewed by two independent reviewers, who come/work at a scientific institution other than the author’s/authors’, without a conflict of interest between the author/authors and reviewers. The review will be based on a review form, which will include the reviewer’s observations and conclusions regarding the paper being reviewed. The names of the reviewers will not be disclosed but, when an issue is published, a list of the reviewers who have reviewed the articles in that issue will be attached. No fees are charged for the processing of the articles and for publication. Open Access License This journal provides immediate open access to its content under the <A href="https://creativecommons.org/licenses/by-sa/4.0/">Creative Commons CC BY SA 4.0 license.</A>　Authors who publish with this journal retain all copyrights and agree to the terms of the above-mentioned CC BY SA 4.0 license. Open Access Statement The journal is an Open Access journal that allows a free unlimited access to all its contents without any restrictions upon publication to all users.

Editor-in-Chief Prof. Ilie ONICA, UNIVERSITY OF PETROSANI, ROMANIA Managing Editors Assoc. Prof. Dacian-Paul MARIAN, UNIVERSITY OF PETROSANI, ROMANIA Assoc. Prof. Andrei ANDRAS, UNIVERSITY OF PETROSANI, ROMANIA Editorial Advisory Board Prof. Dumitru FODOR, UNIVERSITY OF PETROSANI, ROMANIA Prof. Nicolae ILIAȘ, UNIVERSITY OF PETROSANI, ROMANIA Prof. Mircea GEORGESCU, UNIVERSITY OF PETROSANI, ROMANIA Prof. Pascu Mihai COLOJA, PETROLEUM-GAS UNIVERSITY OF PLOIEŞTI, ROMANIA Editors Prof. Iosif ANDRAS, UNIVERSITY OF PETROSANI, ROMANIA PhD. Eng. Marwan AL HEIB, ECOLE DES MINES DE NANCY, INERIS, FRANCE Assist.Prof. Adam BAJCAR, POLTEGOR-INSTYTUT, POLAND PhD. Eng. Iosif Horia BENDEA, POLITECHNICO DI TORINO, ITALY Assoc. prof. Boyko BEROV, GEOLOGICAL INSTITUTE “STRASHIMIR DIMITROV” BULGARIAN ACADEMY OF SCIENCES, BULGARIA Prof. Essaid BILAL, CENTRE SCIENCES DES PROCESSUS INDUSTRIELS ET NATURELS (SPIN), FRANCE Prof. Lucian BOLUNDUȚ, UNIVERSITY OF PETROSANI, ROMANIA Prof. Ioan BUD, TECHNICAL UNIVERSITY OF CLUJ-NAPOCA (NORTH UNIVERSITY CENTER OF BAIA MARE), ROMANIA Prof. Nam BUI, HANOI UNIVERSITY OF SCIENCE AND TECHNOLOGY, VIETNAM PhD. Eng. Constantin Sorin BURUIAN, INSEMEX PETROSANI, ROMANIA Prof. Eugen COZMA, UNIVERSITY OF PETROSANI, ROMANIA PhD. Eng György Deák, NATIONAL INSTITUTE FOR RESEARCH AND DEVELOPMENT IN ENVIRONMENTAL PROTECTION Prof. Nicolae DIMA, UNIVERSITY OF PETROSANI, ROMANIA Prof. Carsten DREBENSTEDT, TU BERGAKADEMIE FREIBERG, GERMANY Prof. Ioan DUMITRESCU, UNIVERSITY OF PETROSANI, ROMANIA PhD. Eng. George GĂMAN, I.N.C.D. INSEMEX PETROSANI, ROMANIA Prof. Ioan GÂF-DEAC, DIMITRIE CANTEMIR CHRISTIAN UNIVERSITY BUCHAREST, ROMANIA PhD. Eng. Edmond GOSKOLLI - NATIONAL AGENCY OF NATURAL RESOURCES, ALBANIA Prof. Andreea IONICĂ, UNIVERSITY OF PETROSANI, ROMANIA Prof. Sair KAHRAMAN, HACETTEPE UNIVERSITY, TURKEY Prof. Sanda KRAUSZ, UNIVERSITY OF PETROSANI, ROMANIA Prof. Krzysztof KOTWICA, AGH UNIVERSITY OF SCIENCE AND TECHNOLOGY KRAKOW, POLAND Prof. Maria LAZAR, UNIVERSITY OF PETROSANI, ROMANIA Prof. Monica LEBA, UNIVERSITY OF PETROSANI, ROMANIA Assoc.prof. Csaba LORINȚ, UNIVERSITY OF PETROSANI, ROMANIA Prof. Roland MORARU, UNIVERSITY OF PETROSANI, ROMANIA PhD. Eng. Vlad Mihai PĂSCULESCU, INSEMEX PETROSANI, ROMANIA Prof. Florin Dumitru POPESCU, UNIVERSITY OF PETROSANI, ROMANIA Prof. Sorin Mihai RADU, UNIVERSITY OF PETROSANI, ROMANIA Prof. Ilie ROTUNJANU, UNIVERSITY OF PETROSANI, ROMANIA Prof. Mihaela TODERAȘ, UNIVERSITY OF PETROSANI, ROMANIA Assoc. prof. Sorin Liviu UDUBAȘA, UNIVERSITY OF BUCHAREST, ROMANIA Prof. Ioel VERES, TECHNICAL UNIVERSITY OF CLUJ-NAPOCA, ROMANIA Assoc. prof. Zoltan Istvan VIRÁG, UNIVERSITY OF MISKOLC, HUNGARY Language Editors Lecturer PhD. Lavinia HULEA, UNIVERSITY OF PETROSANI, ROMANIA Technical Editors Radu ION, UNIVERSITY OF PETROSANI, ROMANIA Publisher Sciendo - registered in Poland under the name De Gruyter Poland Ltd., ul. Bogumila Zuga 32A, 01-811 Warsaw, Poland Subsidiary of Walter de Gruyter GmbH

<DIV align=left> Revista Minelor/Mining Revue (MinRv), ISSN-L 1220-2053/ISSN 2247-8590, is an official journal of the University of Petrosani, Romania, published quarterly both printed and online. It is an international open-access, peer-reviewed journal focusing on the development and exchange of scientific and technical aspects (novelties) in the broad field of mining sciences. We welcome contributions (research papers, reports and reviews) presenting original theoretical, experimental studies and computer simulation and modelling, including but not limited to, the following topics: <UL> <LI>Underground/Open Pit Mining (mining technologies, stability of underground mining workings, blasting, ventilation, tunnelling); </LI> <LI>Mining mechanization, mining transport, deep hole drilling; </LI> <LI>Rock mechanics and geotechnical engineering; </LI> <LI>Geology and mine surveying; </LI> <LI>Hydrogeology (hydrogeology of surface and underground mining, mine water, dewatering and rebound); </LI> <LI>Environmental impact assessment; </LI> <LI>Mine waste management; </LI> <LI>Raw materials extraction, utilization and processing; </LI> <LI>Mine closure and site reclamation; </LI> <LI>Occupational health and safety; </LI> <LI>Mine planning and design; </LI> <LI>Mining process control and optimization; </LI> <LI>Reliability, maintenance and overall performance of mining systems; </LI> <LI>Risk assessment and management in mining and mineral engineering. </LI></UL> The editors will consider papers on other topics related to mining and environmental issues. All published research articles in this journal have undergone rigorous peer review, based on initial editor screening and review by independent experts. The journal is intended for academic scientists, industry and applied researchers, and policy and decision makers. All necessary information about publishing in Revista minelor – Mining Revue can be found on our website. In addition, the available archive of the journal from 2021 in open access as well as the previous volumes (older than 2021) can also be found on the website of the UNIVERSITY OF PETROȘANI, at <A href="https://www.upet.ro/revistaminelor/eng.php">www.upet.ro/revistaminelor/eng.php</A> Archiving Sciendo archives the contents of this journal in <A href="https://www.portico.org/">Portico</A> - digital long-term preservation service of scholarly books, journals and collections. Plagiarism Policy The editorial board is participating in a growing community of <A href="https://www.crossref.org/services/similarity-check/">Similarity Check System's</A> users in order to ensure that the content published is original and trustworthy. Similarity Check is a medium that allows for comprehensive manuscripts screening, aimed to eliminate plagiarism and provide a high standard and quality peer-review process. </DIV>

Mining Revue

Studies on Lignite Quality Depending on Storage Conditions

Vasile Bobei and
Vasile Bobei and
Daniela Ciolea
Daniela Ciolea

Published Online: 11 Jan 2023

Volume & Issue: Volume 28 (2022) - Issue 4 (December 2022)

Page range: 14 - 23

Journal & Issue Details

Mining Revue

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References

Recent Articles

Plan your remote conference with Sciendo

Mining Revue

Studies on Lignite Quality Depending on Storage Conditions

Vasile Bobei andVasile Bobei andDaniela CioleaDaniela Ciolea

Published Online: 11 Jan 2023

Volume & Issue: Volume 28 (2022) - Issue 4 (December 2022)

Page range: 14 - 23

Journal & Issue Details

Mining Revue

PDF Preview

References

Recent Articles

Plan your remote conference with Sciendo

Vasile Bobei and
Vasile Bobei and
Daniela Ciolea
Daniela Ciolea