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The grinding circuit
optimization process
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The quality optimization
consists in:
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- The preparation
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- The optimization
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- The final report
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The preparation:
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The
optimization of a cement grinding plant always occurs after the modification
of the
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circuit and/or the mill
internals.
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Then, the first thing to
do is to check if these modifications have been carried out.
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In most of the cases, a
new ball charge gradation has been proposed and the ball mill
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must be loaded with only
70% of this ball charge.
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This will be also checked
during the 1st visit of the mill.
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Human resources and
material required will also be defined.
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The optimization:
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The first step of the
optimization will consists in an audit like detailed above.
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New
sampling campaigns are often necessary especially if we have to calculate the
last
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part of the ball charge.
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The
last part of the optimization will mainly consist in finding the right
settings of the installation:
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- Ventilation of the mill
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- Speed of the separator
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- Air to separator
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- Position of the
different flaps, dampers
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The final report:
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- Preliminary pages
(abstract, table of contents, glossary)
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- Main report with
explanation of the optimization work and its steps
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- Conclusions
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- Annexes with figures
and sheets
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Time required:
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It is impossible to know
in advance the number of days of an optimization.
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It depends of a lot of
factors.
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But 2 weeks seems to be a
good average for that work.
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Maybe, various stages
will also be necessary.
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