Ganhos de Eficiência Energética em Moinho SAG por meio de Controle Automático

Thomás V. B. e Pinto; Higor S. Barbosa; Marlon Souza; Thiago A. M. Euzébio

doi:10.20906/CBA2022/3668

Thomás V. B. e Pinto Instituto Tecnológico Vale, Ouro Preto, MG; Programa de Pós Graduação em Engenharia Elétrica, Universidade Federal de Minas Gerais, Belo Horizonte, MG
Higor S. Barbosa Vale S.A.
Marlon Souza Vale S.A.
Thiago A. M. Euzébio Instituto Tecnológico Vale, Ouro Preto, MG

DOI: https://doi.org/10.20906/CBA2022/3668

Keywords: Energy efficiency, SAG milling, Automatic control system, Cascade controller, Feedforward controller

Abstract

This work presents the development and implementation of a cascade controller and a feedforward controller to increase the energy efficiency of the SAG grinding circuit of the Sossego plant, belonging to Vale S.A. Aspects of the procession, and instrumentation present in the circuit, are discussed in the construction of the proposed control system. The results of a three-month application at the Sossego plant indicate an increase in SAG mill energy efficiency of 7.8% and an increase in circuit productivity of 1.9%.