Journal
POWDER TECHNOLOGY
Volume 124, Issue 3, Pages 254-263Publisher
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DOI: 10.1016/S0032-5910(02)00028-1
Keywords
grinding mill; real-time optimization; linear programming; dynamic simulation; grinding circuit control
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This paper presents an application of real-time optimization (RTO) to a simulated ore grinding plant. The control and optimization methods are based on a dynamic linear model of the process. A linear programming (LP) method is used on-line to find the optimum controller set-point as a function of the process-operating constraints. The optimizer selects set-point values that maximize circuit throughput subject to constraints on circulating load, pump box level and hydrocyclone overflow and under-flow densities, At the regulatory control level, performances of unconstrained and constrained multivariable predictive controllers are compared and discussed. (C) 2002 Elsevier Science B.V. All rights reserved.
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