Title

Q-MELT AUTOMATIC EAF - LATEST EVOLUTION OF EAF CONCEPT FOR STEEL INDUSTRY

Authorship

Scubla, Stefano; Burin, Paolo; Piazza, Manuele

Scubla, Stefano

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Burin, Paolo

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Piazza, Manuele

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DOI

10.5151/1982-9345-26904

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Abstract

DANIELI Q-MELT is the latest evolution of EAF concept to automatically control each stage of the melting process, from the electric power planning to the combustion optimization as well as the slag and steel metallurgy management for every operation required in the EAF cycle. The core of the automation system is the Melt-Model that automatically identifies deviations of the process control variables and corrects them to avoid losses or wasting of available energy sources. The real-time online off-gas analysis, via the in-situ laser system, promotes the process tracking and permits further optimization by a viable closed-loop control acting on fuel and oxygen postcombustion. A suite of supplementary stand-alone Technological Packages integrates the Q-MELT to further maximize the productive time and the utilization factor, supporting the operators to limit downtimes, avoiding misoperations and/or mistakes.

Keywords

Automatic EAF, Q-Melt, Melt-model, Technological packages, EAF control strategies, Steel making

Steel making