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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Development and Validation of a Simplified Laboratory Test to Design Vertical Stirred Mills

Texto completo
Bergerman, Mauricio G. [1] ; Delboni Junior, Homero [1]
Número total de Autores: 2
Afiliação do(s) autor(es):
[1] Univ Sao Paulo, Min & Petr Engn Dept, Av Prof Mello Moraes 2373, BR-05508030 Sao Paulo, SP - Brazil
Número total de Afiliações: 1
Tipo de documento: Artigo Científico
Fonte: KONA POWDER AND PARTICLE JOURNAL; n. 37, p. 187-194, 2020.
Citações Web of Science: 0

The use of vertical stirred mills in the mining industry has increased remarkably over the past few decades as a result of the growing demand for finer ore grinding. This equipment is recognized to deliver higher energy efficiency in fine grinding operations when compared to conventional tubular mills. Methods of designing vertical stirred mills involve operational experience, pilot plant tests and bench tests. An important issue is that the laboratory-scale test, conducted in the standard 8 `' x10 `' jar, requires at least 10-20 kg of material, depending on ore density, which is not available in many cases, particularly in the early stages of greenfield projects. For regrinding of flotation concentrates, several bench scale flotation tests are required to generate such a sample. The paper describes the development and validation with six different ore samples of a simplified laboratory jar mill test using a 6 `' x8 `' jar, which is smaller than the 8 `' x10 `' size, the latter commonly used which requires about one-tenth of the mass required in the standard test. The proposed test indicated similar results as compared to the standard procedure. (AU)

Processo FAPESP: 15/11739-2 - Proposta de uma metodologia para a seleção e o dimensionamento de moinhos para remoagem de alta eficiência energética
Beneficiário:Maurício Guimarães Bergerman
Linha de fomento: Auxílio à Pesquisa - Regular