VAIRON PELLETIZING OPTIMIZERPROCESS OPTIMIZATION FORPELLETIZING PLANTSOPERATIONAL TARGETS

PROCESS OPTIMIZATIONThe ultimate aim in pelletizing is to produce consistently
high pellet quality at high productivity rates and low
conversion costs—while at the same time fulfilling theemission limits imposed on operation.

Primetals Technologies has developed the Expert Systemfor pelletizing plants, which is supported by advanced
process models that provide additional insight into theprocess and support operational decisions. The pellets onthe surface, the bottom, the walls, and the center faces
different process conditions, so the process models predict,evaluate, and track these conditions on a fine-meshed gridin all cross sections throughout the whole process chain.
Extended simulation capabilities support the identificationof optimal operational points—in order, for example, to
optimize the trade-off between the energy supply to thedifferent process steps in the drying and induration zones.

Different shift operators tend to operate the machinein different ways. Equalizing to optimized operational
decisions over all shifts will lead to maximum production ofquality pellets at minimal production costs.
COMPLEX PROCESS INTERACTIONS
Owing to the mutual interdependence of the different
pelletizing process steps, precise simulation is essential toreliable process optimization.

primetals.com

Plant overview HMI of VAiron Pelletizing Optimizer

EXPERT SYSTEMThe Expert System for pelletizing plants models theknowledge of experienced pelletizing process engineers
and operators, the cause-and-effect relationships ofprocess disturbances, metallurgical know-how, and theprevailing control philosophy. It thus monitors and foresees
the process status, provides graphical displays, counteracts
process disturbances, suggests control measures, andexplains suggested measures in the form of verbal
messages. The Expert System uses the information fromthe Process Information and Data Management Systemand the advanced process models to standardize theoperation, achieve stabilized product quality, and lower fuelconsumption. Thus process-control practice becomes more
uniform and efficient across different shifts.

Primetals Technologies
Austria GmbHA joint venture of Mitsubishi Heavy
Industries and partners
Turmstrasse 44 | 4031 Linz | Austria
primetals.com
Order No. T01-1-N641-L2-P-V3-ENPrinted in Linz | © 2020

MAIN BENEFITS• Quality improvement: typical reduction ofstandard deviation of product KPIs by 5to 10%• Increase in pelletizing production of up to 3%• Energy consumption reduced by up to 4%• Typical pay-back time of less than one year

The information (including, e.g., figures and numbers) provided in this document contains merely general descriptions or characteristics
of performance based on estimates and assumptions which have not been verified. It is no representation, does not constitute and/or evidence a contract or an offer to enter into a contract to any extent and is not binding upon the parties. Any obligation to provide
and/or demonstrate respective characteristics shall only exist if expressly agreed in the terms of the contract. These estimatesand assumptions have to be analyzed on a case-to-case basis and might change as a result of further product development.
Primetals Technologies excludes any liability whatsoever under or in connection with any provided information, estimates andassumptions. The provided information, estimates and assumptions shall be without prejudice to any possible future offer and/orcontract. Any use of information provided by Primetals Technologies to the recipient shall be subject to applicable confidentiality
obligations and for the own convenience of and of the sole risk of the recipient.
Primetals is a trademark of Primetals Technologies Ltd.