Project {open_quotes}Kovin{close_quotes} - economics of upgraded low-rank coal

Conference · Sat Dec 31 04:00:00 EST 1994

OSTI ID:41587

Ljubicic, B; Anderson, C ^[1]; Bukurov, Z; Cvijanovic, P ^[2]; Stajner, K ^[3]

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1. Energy & Environmental Research Center, Grand Forks, ND (United States)
2. Faculty of Technical Sciences, Novi Sad (Yugoslavia)
3. Electric Power of Serbia, Novi Sad (Yugoslavia)

Yugoslavia has large reserves of lignitic coal, some of which are in geological settings that are located below the water table, along and under the Danube River, and are difficult to mine. Since conventional strip mining in the area next to the Danube would be difficult, the Kovin lignite will be mined as course lignite-water slurry. This will be the first time that lignite coal has been mined using dredging equipment. The use of dredging technology for the recovery of multiple lignite seams is an expansion of current dredging practices used to recovery precious and other metals such as tin, as well as diamonds, sand, and gravel from alluvial deposits. The proposed lignite dredging is based on selective mining of several discrete layers. The layers consist of either waste material or lignite and can be directed to a disposal area or to further processing. It is expected that dredging will reduce the environmental impact of the mine, be highly productive since it is fully mechanized, and reduce the cost per ton of lignite. The successful operation at the Kovin mine would also enable lignite to be dredged in other reserve areas where a high water table or significant surface water is present, allowing considerable tonnages of lignite, not currently in reserves, to be moved into the minable reserve category.

• OSTI ID: 41587
• Report Number(s): CONF-940320--
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
CAPITALIZED COST
DREDGING
EARTHMOVING EQUIPMENT
ECONOMIC ANALYSIS
FUEL SLURRIES
LIGNITE
MINING EQUIPMENT
OPERATING COST
PRODUCTION
RHEOLOGY
UNDERGROUND MINING
YUGOSLAVIA