Scholarly record
LIGNITE RECOVERY IN MULTI- SEAM OPEN-PIT MINING OPERATIONS IN NORTHERN GREECE
Abstract
This paper illustrates, by means of the case study of the most important lignite deposit in Northern Greece, the lignite recovery in multi-seam or “zebra” type lignite deposits. It discusses the difficulties encountered in most efficiently producing lignite from this type of sequence, characterized by the multiple interchanges of lignite layers and thin sterile intercalations consisting mainly of clays, marls and sands. The knowledge of the geometry and the quality characteristics of the recoverable lignite are of the utmost importance in designing efficient lignite exploitation. Technical and quality criteria are taken into account to obtain the maximum lignite recovery, fulfilling certain technical and quality specifications. These criteria are related to the geometry and quality parameters of the recoverable lignite, the geometry and quality parameters of the sterile intercalations either those included in the excavation block or those which are dumped, and the selective mining losses. Using these criteria, lignite recovery up to 91.9\% is achieved.
Publication details
References7
Karamalikis, N. (1993). Software pack age for evaluating lignite deposits. Scientific bulletin 42, Public Power Corporation, Greece, pp. 67-77.
Kolovos, C. (2001). Opening a new mine w ith old-already existing equipment. In: Proceedings 10th International Symposium on Mine Planning and Equipment Selection, New Delhi, 19-21.11.2001, pp. 243-248
Kolovos, N. (2001). The lignite deposit of South Field of Ptol emais basin. Ph.D. Thesis, Aristotle University of Thessaloniki, Greece, 142 pp.
Kolovos, N., Georgakopoulos, A ., Filippidis, A., Kavouridis, C. (2002a). Environmental effects of lignite and intermediate steriles co -excavation in the Sout hern Field Mine of
Ptolemais, Northern Greece. Energy Sources, 24 (6): 561-573.
Kolovos, N., Georgakopoulos, A., Filippidis, A., Kavouridis, C. (2002b). The effects on the mined lignite quality characteristics by the in tercalated thin layers of carbonates in Ptolemais mines, Northern Greece. Energy Sources, 24 (8): 761-772. Kolovos N., Georgakopoulos, A., Filippidis, A., Kavouridis, C. (2002c). Utilization of Lignite Reserves and Simultaneous Improve ment of Dust Emi ssions and Operation Efficiency of a Power Plant by Controlling th e Calcium (Total and Free) Content of the Fed Lignite. Application on the Agios Dim itrios Power Plant, Ptolemais, Greece. Energy & Fuels, 16 (6): 1516-1522.
Mevorach, R., Findikakis, P., Panagiotou, G. N. (1994). Modeling of lignite-waste material mixing during selective mining with BWE. In: Proceedings Mine Planning and Equipment Selection Symposium, Constantinople, Turk ey, Pasamehmetoglu et al. (eds), 1994, Balkema, Rotterdam, pp. 347-352. International Conference
View or Download full articleAccess options
SWS access login
Login as SWS Scientific CommitteeLogin as SWS Scientific PartnerLogin as SWS AuthorAuthors and approved SWS contributors will read and export their own linked papers after identity matching by SWS profile, email and SGEM GlobalID.
For librarian assistance: [email protected]
Purchase Instant Access
- Article can be downloaded after successful payment.
- Article may be used according to SWS library access terms.
- Article cannot be redistributed.