Demand side management of a run-of-mine ore milling circuit

Loading...
Thumbnail Image

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.