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Use of the Swebrec Function to Model Particle Size Distribution in an Industrial-Scale Ni-Co Ore Grinding Circuit

1
CETAM, Universidad de Moa Dr. Antonio Núñez Jiménez, Bahía de Moa 83300, Cuba
2
Escuela Politécnica de Mieres, Universidad de Oviedo, Mieres 33600, Spain
3
Escola Superior Politécnica da Lunda Sul, Universidade Lueji A’Nkonde, Saurimo 161, Angola
4
Sociedade Mineira de Catoca Lda., Luanda 10257, Angola
5
Empresa Comandante Ernesto Ché Guevara., Punta Gorda 83310, Cuba
*
Author to whom correspondence should be addressed.
Metals 2019, 9(8), 882; https://doi.org/10.3390/met9080882
Received: 9 July 2019 / Revised: 7 August 2019 / Accepted: 8 August 2019 / Published: 10 August 2019
(This article belongs to the Special Issue Advances in Mineral Processing and Hydrometallurgy)
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Abstract

Mathematical models of particle size distribution (PSD) are necessary in the modelling and simulation of comminution circuits. In order to evaluate the application of the Swebrec PSD model (SWEF) in the grinding circuit at the Punta Gorda Ni-Co plant, a sampling campaign was carried out with variations in the operating parameters. Subsequently, the fitting of the data to the Gates-Gaudin-Schumann (GGS), Rosin-Rammler (RRS) and SWEF PSD functions was evaluated under statistical criteria. The fitting of the evaluated distribution models showed that these functions are characterized as being sufficiently accurate, as the estimation error does not exceed 3.0% in any of the cases. In the particular case of the Swebrec function, reproducibility for all the products is high. Furthermore, its estimation error does not exceed 2.7% in any of the cases, with a correlation coefficient of the ratio between experimental and simulated data greater than 0.99. View Full-Text
Keywords: comminution; grinding circuit; Swebrec function; size distribution models; modelling; lateritic ore comminution; grinding circuit; Swebrec function; size distribution models; modelling; lateritic ore
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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MDPI and ACS Style

Coello-Velázquez, A.L.; Quijano Arteaga, V.; Menéndez-Aguado, J.M.; Pole, F.M.; Llorente, L. Use of the Swebrec Function to Model Particle Size Distribution in an Industrial-Scale Ni-Co Ore Grinding Circuit. Metals 2019, 9, 882.

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