Development status of preconcentration discarding technology
With the continuous development and utilisation of mineral resources in China,the amount of natural high-grade ore resources has gradually decreased,making low-grade ore the main source of mineral resources in China.Consequently,preconcentration and discarding technology have become a necessary step in mineral processing.This paper focuses on five kinds of waste-disposing technologies:manual picking,photoelectric selection,magnetic separation,gravity beneficiation,and flotation.It introduces the equipment and working principle of different technologies used in preconcentration and discarding,highlighting their advantages and disadvantages.Overall,this study provides a reference for the further industrial application of preconcentration and waste disposal technology.
preconcentration and discardinggravity beneficiationcoarse particle flotationphotoelectric selectionmagnetic separation
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