cement ball mill image coal iron moment
The two coal-grinding ball mills are of Messrs. Newell's standard type, known as "Lion" Ball Mills. They are illustrated in Figs. 80 and 81, the latter of which shows half of the mill in section. The drum is mounted on a steel shaft to which it is secured by two naves, the nave on the driving side being solid, while that on the feeding side is
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