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Danieli to Upgrade Turnkey Meltshop for ArcelorMittal Sestao
09/25/2025 - ArcelorMittal Sestao has selected Danieli for the turnkey supply of a new fume treatment plant (FTP) and vacuum degasser (VD) for its Vizcaya plant in Spain as part of its new investment programs.
ArcelorMittal Sestao said the upgrade is part of the “Sestao 1.6” new investment programs which aim for zero-carbon emissions, capacity increases and an expanded product portfolio. Installation of a new FTP for the existing electric arc furnace (EAF) #1 will allow it to utilize the full potential of the two existing EAFs and increase productivity up to an estimated 1.6 million metric tons annually.
The new FTP will filter EAF fumes with dust emission at the stack of less than 3 mg/Nm3. The dedusting system will include a refractory-free quenching tower, plug-and-play modular filter and ID fans with variable frequency drives.
The new VD station will have mechanical dry vacuum pumps for production of clean steel with precise chemical control, and low nitrogen and hydrogen content. It will be installed in an extension of the existing meltshop bay, ensuring efficient ladle and process logistics from any melting unit and increasing operational safety, the company said.
The VD system will include a Q-AFS automatic foaming slag control system and a Q-Degas system.
Danieli said new Danieli Automation electrical and process control systems will be integrated into the existing meltshop system.
The new equipment is scheduled for operation in August 2026, the companies said.
The new FTP will filter EAF fumes with dust emission at the stack of less than 3 mg/Nm3. The dedusting system will include a refractory-free quenching tower, plug-and-play modular filter and ID fans with variable frequency drives.
The new VD station will have mechanical dry vacuum pumps for production of clean steel with precise chemical control, and low nitrogen and hydrogen content. It will be installed in an extension of the existing meltshop bay, ensuring efficient ladle and process logistics from any melting unit and increasing operational safety, the company said.
The VD system will include a Q-AFS automatic foaming slag control system and a Q-Degas system.
Danieli said new Danieli Automation electrical and process control systems will be integrated into the existing meltshop system.
The new equipment is scheduled for operation in August 2026, the companies said.
