TECHNICAL EVALUATION OF REAGENT DOSING PUMPING SYSTEMS IN FLOTATION CIRCUITS

Ronaldo Almeida Fonseca; Francisco das Chagas Olegario Júnior; Helbert Felipe Lino; Maurício Guimarães Bergerman

doi:10.15628/holos.2017.6525

Autores

Ronaldo Almeida Fonseca Vale S.A. http://orcid.org/0000-0003-3914-715X
Francisco das Chagas Olegario Júnior Vale S.A. http://orcid.org/0000-0002-5263-3788
Helbert Felipe Lino Vale S.A. http://orcid.org/0000-0002-0113-4612
Maurício Guimarães Bergerman Departamento de Engenharia de Minas e de Petróleo da Universidade de São Paulo http://orcid.org/0000-0002-6843-3051

DOI:

https://doi.org/10.15628/holos.2017.6525

Palavras-chave:

Flotation, copper, reagent dosing

Resumo

Vale's ore processing plants use different types of pumping circuits for flotation reagent dosing. Most commonly, circuits with centrifugal pumps, diaphragm pumps, and peristaltic pumps are used. Alternative arrangements can also be used, such as helical pumps and direct dosing from reagent storage drums (with manual or automatic dosing systens). This study aims to technically evaluate some of the alternatives available in the marketplace and present the results of an industrial evaluation comparing a peristaltic pump circuit to a circuit with centrifugal and diaphragm pumps, all operating in parallel. The results showed that the three types of circuits meet the operational requirements of reagent dosing control. However, the peristaltic pump circuit has proven to be less complex and costly.

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Referências

Bergerman, M. G. (2009). Modelagem e simulação do circuito de moagem do Sossego Dissertação de mestrado. Universidade de São Paulo, São Paulo, Brasil.

Miranda, A., Fonseca, R., Olegario, F., Souza, M., Oliveira, G., Bergerman, M. G., & Delboni Junior, H. (2015). Avaliação da granulometria de alimentação e dos produtos da etapa rougher de flotação da usina do Sossego. HOLOS, 7, 88-93, Dec. 2015. Available at: http://dx.doi.org/10.15628/holos.2015.3655.

Rosa, M. A. N., Bergerman, M. G., Miranda, A., Oliveira, J. L., Souza, M., Batista Filho, J., & Cardoso, W. (2007). Controle operacional da usina do Sossego. VII Meeting of the southern hemisphere on mineral technology and XXII Encontro nacional de tratamento de minérios e metalurgia extrativa. Ouro Preto, Brasil.