Diameter factors affecting ball mill scale-up

Autor: Chester A. Rowland
Rok vydání: 1988
Předmět:
Zdroj: International Journal of Mineral Processing. 22:95-104
ISSN: 0301-7516
DOI: 10.1016/0301-7516(88)90058-0
Popis: In some plants the performance of large diameter ball mills is not as efficient in energy consumption as predicted from the performance of laboratory and pilot-plant ball mills. Ball mill scale-up is primarily by increasing mill diameter. This is subject to diameter relationships varying from the square root of the diameters in an inverse ratio to the diameters raised to the 2.5 exponent in a direct ratio. Another relationship is the ball diameter to mill diameter factor. This determines the number of layers of balls in the mill and the proportion of impact, abrasion and attrition grinding that occurs in a specific ball mill. Additional research work is needed on scaling-up laboratory and pilot-plant ball mill data to predict the performance of large diameter ball mills.
Databáze: OpenAIRE