NDLI: Control of a roasting process for the recovery of vanadium

Content Provider	IEEE Xplore Digital Library
Author	Geyrhofer, W. Voglauer, B. Joergl, H.P.
Copyright Year	2003
Description	Author affiliation: Inst. f. Machine & Processautom., Vienna Univ. of Technol., Australia (Geyrhofer, W.; Voglauer, B.; Joergl, H.P.)
Abstract	Rotary Kilns or Multiple Hearth Roasters are commonly used for the extraction of Vanadium from steelworks slag. The process is long known but the requirement for efficient operation makes it difficult for the operator to handle the roaster in an optimal way. It is inevitable to hold a given process temperature profile and to provide the correct chemical environment for an efficient operation mode and to avoid undesired process behavior. Therefore, in this article a control concept is introduced which enables a high degree of automatization for a roasting process in a Multiple Hearth Furnace. The control concept is based on a temperature controller and a chemistry controller. An additional overhead controller is introduced that calculates desired values for the sub-controllers according an optimization criterion and under consideration of keeping the roaster within a desired scope of operation. The controller design is mainly model-based, in case of the chemistry controller, where it might sometimes be elaborate to provide a sufficient model, optionally a knowledge based fuzzy controller is used. In the design of the described control concept industrial applicability was given a high degree of importance.
Starting Page	614
Ending Page	617
File Size	301874
Page Count	4
File Format	PDF
ISBN	078037729X
DOI	10.1109/CCA.2003.1223507
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2003-06-25
Publisher Place	Turkey
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Automatic control Temperature control Slag Chemistry Kilns Fuzzy control Equations Chemicals Knowledge acquisition Telephony
Content Type	Text
Resource Type	Article

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