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THE IMPORTANCE OF PARTICLE SIZE DISTRIB UTION AFTER BLASTING AND ARRANGEMENT STUDIES ON THIS BASIS
Abstract
In the condition that drilling and blasting technique is inevitable depending on the rock mass and material characteristics on mining activities, the fragmentation rate and particle size distribution of the muckpile after blasting has important influences on the performance of subsequent mining activities such as loading, hauling, crushing, grinding etc. and the total costs of that mine. Drilling and blasting is an important step in this process chain and it’s results such as fragmentation, muckpile shape and looseness, dilution, damage and rock softening effect the efficiency of downstream processes. There is an increasing body of blasting research indicating significant impacts in these downstream processes. Within the scope of this study, field studies had been realized on different open pit mines in Turkey and the importance of particle size distribution on blasting was defined by the comparative productivity analysis of subsequent mining activities with actual particle size distribution values obtained from digital image analysis technique. This paper summarizes the importance and effects of particle size distribution on mines and give the partly gained results of an ongoing Mine to Mill project.
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References6
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