Rod Mill Feed Size Grinding Classification Circuits

Rod Mill Feed Size (15 replies) A first approximation for optimum feed size is Fo=16,000(13/Wi)^.5. Coarser (and finer) feeds are possible. 50 mm is approaching the top end.

calculate the reduction ratio of ball mill. river gold calculate ball charge ball mill is one of the most commonly used dry mortar,highway construction,hydraulic production of industrial smash equipment.Made of . Get Price And Support Online What it is the optimun speed for a ball mill .

How To Calculate Size Reduction Ratio boyukgalahotel

1.Calculation size reduction ratio with the largest size of crushing material and the largest size after broken. i=Dmax/dmax. Dmax is the biggest granularity of material before broken dmax is the biggest granularity of material after broken

Best way to determine the balltopowder ratio in ball

However, if you are dealing with coarse feed between 13 mm, then it will drop to 1.5). The true density of balls are around 7.5. Then, the optimal mass ratio of ball to powder in ball mill is 7.5*24/(2.5*17.6)= 4.09 to 7.5*21/(2.5*11.2) = 5.63.

Generally, every crusher machine is not the same, here are several common crusher size reduction ratio: The impact crusher size reduction ratio is 20 to 1. The vertical shaft impact crusher size reduction ratio is 48 to 1. The vertical roller mill size reduction ratio is 22.5 to

Crusher Reduction Ratio. Therefore, if minimum production of fines is desirable, it is logical that the heavy end of the 7:1 reduction should be handled in the latter machine. Generally, for such a case, the split would be about 3:1 to the standard machine, and 4:1 to the fine reduction crusher.

The reduction ratio, R, in rod mills varies from 2 and 20 depending on the characteristics of the ore. The usual reduction ratio is about 8. According to Bond [4], the reduction ratio is a function of length and diameter of the mill. The optimum reduction ratio, R RO, can be written as

This indicates that the rod mill reduction ratio is much larger than those at normal condition, and ball mill reduction ratio is much smaller. » More detailed. standard number of reduction ratio of grinding mill. 150 where RRO = optimum reduction ratio for the mill size = 8 long and tedious and requires a standard set of grinding

A newer method is the use of the average reduction ratio Rra. This can be obtained by averaging the reduction ratios at 90, 70, 50, 30 and 10% passing. The reduction ratio,