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Salzgitter Group Invests in Walking Beam Furnace
05/05/2025 - Salzgitter Group and its subsidiary, Salzgitter Flachstahl GmbH, announced they will invest in a new walking beam furnace and waste gas heat utilization system at their hot strip mill.
Salzgitter Group turned to Tenova Italimpianti for the walking beam furnace. In it, the slabs will be heated up to 1,300 degrees Celsius to create blocks of cast steel that is then rolled out into coils.
"With the new furnace, we will be reducing our energy requirements for slab heating in the hot flat steel area by up to 30%,” said Thomas Routschek, operations director, hot flat products division at Salzgitter Flachstahl GmbH. It will also enable the use of hydrogen.
When the slabs are heated in the walking beam furnace, hot combustion gases are generated. That thermal energy is converted to steam in an exhaust gas heat recovery system, the Abgaswärmenutzungsanlage (AWN). The DSD Power company was commissioned to construct the AWN. the company said.
"The new AWN system makes decidedly efficient use of the combustion gases. The high-quality steam generated in the process is then distributed throughout the plant," said project manager hot rolling mill Salzgitter Flachstahl, Felix Iwanowski.
Funded by KfW Development Bank, the installation and commissioning are scheduled for completion in 2028, the company said.
“Subsequent to successful commissioning, all the slabs produced at the Salzgitter site will be processed in the walking beam furnaces in future,” said Routschek.
"With the new furnace, we will be reducing our energy requirements for slab heating in the hot flat steel area by up to 30%,” said Thomas Routschek, operations director, hot flat products division at Salzgitter Flachstahl GmbH. It will also enable the use of hydrogen.
When the slabs are heated in the walking beam furnace, hot combustion gases are generated. That thermal energy is converted to steam in an exhaust gas heat recovery system, the Abgaswärmenutzungsanlage (AWN). The DSD Power company was commissioned to construct the AWN. the company said.
"The new AWN system makes decidedly efficient use of the combustion gases. The high-quality steam generated in the process is then distributed throughout the plant," said project manager hot rolling mill Salzgitter Flachstahl, Felix Iwanowski.
Funded by KfW Development Bank, the installation and commissioning are scheduled for completion in 2028, the company said.
“Subsequent to successful commissioning, all the slabs produced at the Salzgitter site will be processed in the walking beam furnaces in future,” said Routschek.
