| Summary: | A dissertation submitted to the Faculty of Engineenug, University of the
Witwatersrand, in fulfilment. of the requirements for the degree of Master of Science
in Engineering, === A multi variable control strategy for a grinding circuit at East Driefontein has been
implemented by others and has enabled it to operate under stable conditions. The next
development needed was to find conditions under which tne efficiency of the circuit
was the greatest. Optimum set points exist for the multi variable controller to keep
the circuit at its most efficient state.
This project was done to determine these set points, and how it affected the operation
of the circuit. The strategy involved the collection of process data, the development
of mathematical models and the determination of these optimum set points by
simulation, This option reduced interference with routine production operations,
which is often a prohibiting factor during any development work on an existing
process.
The optimum set points were successfully determined, and were compared with
previous findings and current plant practice. === AC2017
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