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Appl. Sci. 2018, 8(4), 506; https://doi.org/10.3390/app8040506

Multi-Objective and Multi-Rate Control of the Grinding and Classification Circuit with Electromagnetic Mill

Institute of Automatic Control, Silesian University of Technology, 44-100 Gliwice, Poland
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Received: 16 January 2018 / Revised: 22 February 2018 / Accepted: 22 March 2018 / Published: 27 March 2018

Abstract

The paper presents an innovative construction and installation of dry grinding in electromagnetic mill that provides a significant reduction of energy consumption when compared to traditional mills. The installation constitutes complex multi-objective plant. To gain control over all the objectives, hierarchical structure of control system was developed where different time-horizons involve multi-rate scheme of steering. The paper presents solutions for the direct regulation, supervisory control, and optimization level. The electromagnetic mill installation constitutes a unique setup that causes open loop instability and implies the application of novel control schemes at all of the levels. The paper presents these solutions and illustrates them with the results of experiments carried out on the electromagnetic mill installations. View Full-Text
Keywords: electromagnetic mill; control and optimization; hierarchical control; indirect measurement; shredding; grinding; grinding media; bulk materials electromagnetic mill; control and optimization; hierarchical control; indirect measurement; shredding; grinding; grinding media; bulk materials
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Ogonowski, S.; Ogonowski, Z.; Pawełczyk, M. Multi-Objective and Multi-Rate Control of the Grinding and Classification Circuit with Electromagnetic Mill. Appl. Sci. 2018, 8, 506.

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