Estimação da produtividade para auxílio ao diagnóstico em mina de bauxita a céu aberto utilizando lógica fuzzy (Productivity Estimation to Diagnosis Support in Bauxite Open-pit Mine Using Fuzzy Logic)

Maria Daniely B Silva (danielybsilva@hotmail.com)2, Carolina Mattos Affonso (carolina@ufpa.br)1, Kassia Cristina S Cavalcante (kassiamat@hotmail.com)2, Francisco Eduardo L. Picanço (epicanc@uol.com.br)2


1Universidade Federal do Pará
2Mineração Paragominas S.A.

This paper appears in: Revista IEEE América Latina

Publication Date: Dec. 2014
Volume: 12,   Issue: 8 
ISSN: 1548-0992


Abstract:
This paper proposes a methodology to estimates the productivity and support the diagnosis in an open-pit mine using fuzzy logic. The variables used in the estimation process are: loading queues, dumping queues, relocation time and cycle time. After the estimation, a detailed analysis of the unproductive hours is applied in order to identify which fuzzy rules are active. The results shows which key performance indicators (KPIs) are responsible for the low productivity in the mine. Then, it is possible to establish actions aiming to maximize productivity and reduce operational costs in the mine. The proposed method was applied on Paragominas mine located in the east of the state of Para, Brazil.

Index Terms:
Mine productivity, mine production management, open-pit mine, fuzzy logic   


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