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The Bond Equation utilizing work index as the measure of grindability is an accurate, reliable and readily usable method to obtain a consistent measurement of grinding circuit performance. It takes into account variations in feed size and product size with the work index calculated from the operating data reflecting-either changes in the grindability or changes in efficiency. Work indices calculated form-operating data, when compared to work indices obtained from Bond Grindability tests for the same mill feed, give a direct measure of grinding efficiency. The Bond Equation and the equations for the associated efficiency factors can be used by plant supervisory and technical personnel and can also be used in computer programs for reporting and/or process control. The Bond Equation and work index are useful tools in evaluating grinding circuits performance to help maximize the use of the power delivered to grinding circuits in minerals processing plants. |
