8 posts
Longitudinal Sieving Analysis
We have
a cement mill of 7.5m
in length and 2.8m
in diameter which is fed with
clinker that was
ground in a roll press.
The first chamber is
3.0m in length and has balls
40 to 80mm (30% of filling degree and the following charge: 20% of 80mm, 30% of 70mm, 20% of 60mm, 20% of 50mm and 10% of 40mm).
We made several longitudinal sieving analysis
and have observed that
the first chamber does not reduce the size in
2.38mm and other sizes (for example in 2.38mm the clinker milled in the roll press has
retained 48%, the
first sample in the longitudinal sieving has
44% -oversize-, the second
16%, third 20%,
20% the fourth, the fifth
38 %, the latter
coincides with the first
sample of the second chamber).
The lifter
liner is in good condition.
What could be happening?
Is the ball
size appropriate?
Thanks in advance!
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81 posts
re Longitudinal Sieving Analysis
Hi, Your numbers dont add up send me your full longitudinal sieving results and let me take a look at it.
For one thing in first chamber will lifting liners usually you should use 3 to 4 kind of balls only.
Regards;
FJalali