Procedure for estimating the circulating load for closed grinding and milling circuits
Keywords:
mass balance, circulating load, closed circuit, Lagrange function, least square method, milling, grindingAbstract
With the objective to eliminate errors (residues) during the estimation of the circulating load for grinding and milling closed circuits, a procedure was developed to minimize the deviations and inconsistencies ’that occur in the distribution balance of granulometric classes of the product in the diagram by applying least square and Lagrange multipliers to balance equations. The proposed procedures is approved taking into consideration the testing data obtained by the author in 1993. The results show that the proposed procedure allows a better adjustment for the calculation of the circulating load. Based on its values the contents of the granulometric classes of the product are then re-estimated, which eliminates inconsistencies and errors in the content distribution of the granulometric classes produced during the sampling and sample processingDownloads
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