The optimization of Shahrud copper ore beneficiation plant by using of physical preconcentration X-ray sorting method

چکیده مقاله

Abstract

The aim of this investigation is the evaluation and study of optimization of beneficiation plant of Shahrud copper ore in Shahrud city of Iran, by using of automatic physical sorter that applies X-ray technology. Currently, mentioned plant with feed capacity of 52t/h produces 0.5t/h copper concentrate with grade of 30% and copper recovery of 85% from feed grade of 0.36%. By using of X-ray sorter, it is possible to preconcentrate the feed and remove the gangue materials before transferring to the plant. Therefore, the recovery and production rate of concentrate can be increased. In this study, the obtained representative sample from plant was preconcentrated in particle size of -75+10mm by using of X-ray sorter and then, the concentrate with Cu grade of 0.85% was obtained. Therefore, by using of X-ray sorter the Cu grade of plant feed was increased to 0.48%. By increasing the feed grade from 0.36% to 0.48%, and considering of Cu recovery of 85%, the production rate will be increased from 0.48t/h to 0.61t/h. Therefore, the preconcentration by using of X-ray sorter increases the production rate by 27%.  

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