Kinetic grinding test approach to estimate the ball mill work index

• Autorzy: Gharehgheshlagh H. H.

Identyfikatory

DOI

10.5277/ppmp160129

• Języki publikacji: EN

Abstrakty

EN

The standard Bond method is the most acceptable method for designing and selecting ball/rod mills described by their basic parameter called work index (Wi). The standard Bond method is a tedious time consuming procedure requiring at least 7 – 10 grinding cycles, so that many researchers have tried to simplify this method to be able to perform a rapid calculation of a work index. This study aims to develop a new approach toward estimating the Bond ball mill work index (BBWI) by applying a series of kinetic grinding tests with Bond standard mill. Establishing a series of relationships between grinding parameters and Bond equation parameters, this approach is fast and practical due to eliminating laboratory control steps while reducing the number of milling steps. In this scope, thirteen ore samples were used to compare Wi values obtained by standard Bond method with those of the proposed kinetic approach. The kinetic periods were determined as 0.33, 1, 2, 4 and 8 minutes. The results of kinetic tests were found to be logical and acceptable as they were so close to the values obtained by Bond standard method, for all samples error was ≤ 2.60%. It was therefore concluded that the proposed approach could be considered as a simple yet practical alternative for the standard Bond method.

Słowa kluczowe

EN

work index; Bond method; kinetic grinding test; grindability; ball mill

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Physicochemical Problems of Mineral Processing
• Rocznik: 2016
• Tom: Vol. 52, iss. 1
• Strony: 342--352
• Opis fizyczny: Bibliogr. 19 poz., rys., tab.

Twórcy

autor

Gharehgheshlagh H. H.

• Hacettepe University Department of Mining Engineering, 06800 Beytepe Ankara, Turkey

Bibliografia

• AHMADI R., HASHEMZADEHFINI M., AMIRI PARIAN M., 2013, Rapid determination of Bond rod-mill work index by modeling the grinding kinetics, Advanced Powder Technology 24, 441–445.
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Uwagi

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą nauki.