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- Title
ANÁLISE DE IMPLEMENTAÇÃO DE CONTROLE AUTOMÁTICO PARA A OBTENÇÃO DE ESTABILIDADE DA DENSIDADE DE POLPA DE BAUXITA NA ALIMENTAÇÃO DE PENEIRAS TIPO DERRICK.
- Authors
Alves de Souza, Fagner; Olavo Damasio de Oliveira, Geovan; Barreiros Medeiros Branco, Marcos Vinícius; da Silva Tapajós, Neilton; Silva Araújo, Thiago
- Abstract
The bauxite beneficiation process at Mineração Paragominas takes place through the removal of the gangue, concentrated in the ultrafine fractions, <0.038mm "Kaolinite" and the product "Gibbsite" in the fractions >0.038mm. Therefore, the classification step, whether via hidrociclones or screening, is crucial for the efficiency of the process. Considering that 55% of the product is classified via Derrick type sieving. Among the parameters that have a direct influence on the optimization of the screening efficiency, the stability of the optimal feed density is the main point. The objective of this work is to develop and implement automatic logic to control the density of the feed slurry of the Derrick sieving system "Malha de control". Mapping the operant modes of the control room technicians, merging with logic already implemented in independent circuits, increasing assertiveness in adapting the pulp density, meeting the specifications and needs of the process, guaranteeing the desired efficiency in the circuit. The results obtained were lower density variability in Derrick sieving feed, reduction of circulating load, optimization of feed rate and plant production.
- Subjects
GIBBSITE; BAUXITE; AUTOMATIC control systems; KAOLINITE; DERRICKS
- Publication
Revista Foco (Interdisciplinary Studies Journal), 2023, Vol 16, Issue 9, p1
- ISSN
1981-223X
- Publication type
Article
- DOI
10.54751/revistafoco.v16n9-007