As part of its new investment program “Sestao 1.6”, aimed at achieving carbon neutrality, increasing production capacity, and expanding its product portfolio, ArcelorMittal Sestao has selected Danieli to supply a new fume treatment plant and a vacuum degassing unit for its mill in Vizcaya, Basque Country, Spain.
The installation of the new fume treatment plant, serving the existing Electric Arc Furnace No. 1, will enable the mill to fully utilize the capacity of its two EAFs, raising total output to 1.6 million tons per year.
The new FTP will filter the EAF fumes with dust emissions below 3 mg/Nm³ at the stack. The dust removal system features a refractory-free cooling tower, a patented modular “plug & play” filter from Danieli, and internal cooling fans equipped with variable frequency drives.
A new VD station equipped with mechanical dry vacuum pumps will allow the production of ultra-clean steel with precise chemical control and low nitrogen and hydrogen content, enabling AM Sestao to broaden its range of flat steel products.
Thanks to its compact and optimized design, the vacuum degassing unit will be installed as an extension of the existing meltshop bay, ensuring efficient ladle logistics and operations from any melting unit, while enhancing operational safety.
The VD station will include a Q-AFS automatic foamy slag control system mounted on the vacuum cover to optimize pumping time, and a Q-Degas process control system to ensure real-time process monitoring and consistent product quality.
The new electrical and process control systems from Danieli Automation will be fully integrated into the existing E&A control system of the meltshop.
The new equipment is scheduled to be commissioned in August 2026.
