Computer simulation and optimization can assist the study and improvement of crushing plant operation. It has been found that it is important to combine both technical and economic aspects when the plant is studied. This type of combined study is now available by using the developed methods discussed in this paper. The results from the two cases highlighted also show the importance of total plant optimization.To achieve optimal plant performance, it is not sufficient to optimize a single machine. It is important to study all production units in order to achieve a beneficial adjustment of the plant. By comparing the two cases, this is even more obvious.The setting of the production units must be optimized together in order to find the best solution that will generate the highest gross profit and ensure that all final products fulfil customer requirements. It is, therefore, important to have equipment and plant control systems in place that allow the equipment to be adjusted. Simulation and optimization is useful in many situations. During plant design it is useful to be able to do these types of combined economic and technical calculations.When the plant has been built and is in operation, optimization is a powerful tool to determine how to operate the plant in order to meet the current market demand. Simulation and optimization is also a useful tool for educating personnel at all levels on crushing plant operation. I
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