Avaliação de eficiência da classificação de Hidrociclone utilizado modelagem matemática em circuito fechado de moagem

Abstract

Hydrocycles are used on a large scale in the mineral industry, their extensive scale in the classification of materials is justified by the ease of operation, low investment cost, maintenance and large production scale when used in batteries. The paper, performed by this equipment in the classification, defines within a processing circuit which will be the destination flow of the material (flow, overflow) according to its physical characteristics. Mining Kin employs GMAX15 hydrocycles in its beneficiation plants for gold ore, this equipment closes the grinding circuit to the underflow back to grinding and the overflow to the tailings. Thus, the hydrocyclone is positioned in the flowchart as a substantial part that determines the amount of gold lost in the tailings, explaining the need for the greatest possible efficiency. Use the data as inputs capacity models, material granulometry and define the solid model in the efficiency streams (I) of the classification process, the alpha parameter (α) of Lynch & Rao and the separation sharpness (m) of the model of Plitt. Briefly, the hydrocyclone GMAX15 applied in the grinding efficiency circuits esented with an efficiency (I) of good separation results (m) of 2.45, these results are satisfactory given its separation patterns.