Technologies for Decreasing Mining Losses : Scientific Journal of Riga Technical University. Environmental and Climate Technologies

Technologies for Decreasing Mining Losses : Scientific Journal of Riga Technical University. Environmental and Climate Technologies:

Technologies for Decreasing Mining Losses

Ingo Valgma1 / Vivika Väizene1 / Margit Kolats1 / Martin Saarnak1

1Tallinn University of Technology

Citation Information: Scientific Journal of Riga Technical University. Environmental and Climate Technologies. Volume 11, Pages 41–47, ISSN (Print) 1691-5208, DOI: 10.2478/rtuect-2013-0006, October 2013

Publication History:

Published Online:

2013-10-12

Abstract

In case of stratified deposits like oil shale deposit in Estonia, mining losses depend on mining technologies. Current research focuses on extraction and separation possibilities of mineral resources. Selective mining, selective crushing and separation tests have been performed, showing possibilities of decreasing mining losses. Rock crushing and screening process simulations were used for optimizing rock fractions. In addition mine backfilling, fine separation, and optimized drilling and blasting have been analyzed. All tested methods show potential and depend on mineral usage. Usage in addition depends on the utilization technology. The questions like stability of the material flow and influences of the quality fluctuations to the final yield are raised.

Keywords: oil shale; losses; mining; extraction

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