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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

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

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Author(s):
Bergerman, Mauricio G. [1] ; Delboni Junior, Homero [1]
Total Authors: 2
Affiliation:
[1] Univ Sao Paulo, Min & Petr Engn Dept, Av Prof Mello Moraes 2373, BR-05508030 Sao Paulo, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Source: KONA POWDER AND PARTICLE JOURNAL; n. 37, p. 187-194, 2020.
Web of Science Citations: 0
Abstract

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)

FAPESP's process: 15/11739-2 - Proposal of a methodology for designing and selection of high energetic efficiency regrinding mills
Grantee:Maurício Guimarães Bergerman
Support type: Regular Research Grants