Demand side management of a run-of-mine ore milling circuit
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Date
Authors
Matthews, Bjorn
Craig, Ian Keith
Journal Title
Journal ISSN
Volume Title
Publisher
Elsevier
Abstract
Increasing electricity costs coupled with lower prices for some metals such as platinum group metals require a reevaluation of the operation of grinding processes. Demand side management (DSM) has received increasing attention in the field of industrial control as an opportunity to reduce operating costs. DSM through grinding mill power load shifting is presented in this paper using model predictive control and a real-time optimizer. Simulation results indicate that mill power load shifting can potentially achieve cost reductions of $9.90 per kg of unrefined product when applied to a run-of-mine (ROM) ore milling circuit processing platinum bearing ore. DSM is however still not economically feasible when there is a demand to continuously run the milling circuit at maximum throughput
Description
Keywords
Demand side management, Milling circuit, Model predictive control, Power load shifting, Real-time optimizer, Time-of-use tariff
Sustainable Development Goals
Citation
Matthews, B & Craig, IK 2013, 'Demand side management of a run-of-mine ore milling circuit', Control Engineering Practice, vol. 21, no. 6, pp. 759-768.