Modernized Walking Beam Furnace at thyssenkrupp Steel
thyssenkrupp Steel, a supplier of high-grade flat steel, recently upgraded with the modernization of a walking beam furnace installed at the company’s hot strip mill. The plant enhancement will improve production capability, increase quality of the electrical steel strip, and reduce specific consumption.
The modernized furnace is provided by Tenova Italimpianti, a Tenova division with technologies for reheating, heat treatment, strip processing, acid regeneration plants, and cold rolling mills. thyssenkrupp Steel‘s new overhauled system includes an improved refractory lining design and an optimized fixed and walking beam system, which lead to a more uniform temperature distribution along the entire slab length. This reduces temperature loss in the slab’s center and minimizes contact points (rails) between the slabs and the fixed and walking beam system, preventing surface defects.
“The modernization of this walking beam furnace supports our goals for efficiency and sustainability. Tenova has played a key role in this process,” said Viktor Schlecht, head of Hot Strip Mill 1, at thyssenkrupp Steel in Duisburg Bruckhausen, Germany. “We had already successfully collaborated on a new walking beam furnace at our Beeckerwerth Hot Strip Mill 2 in Duisburg, where Tenova’s contribution was crucial in helping us potentially reduce CO2 emissions by more than 20% through the use of hydrogen.”
“We are proud to have partnered with thyssenkrupp Steel for this project, which supports their forward-looking strategy,” said Alessandro Sicher, project engineer coordinator for Reheating Technologies at Tenova. “Our equipment ensures the maximum production of high-quality electrical steel strips while enhancing the sustainability of the heat treatment process.”
The upgrade includes new state-of-the-art UltraLowNOx burners for coke oven gas fuel application. The customized design, enhanced with a modern control system, ensures optimal heating distribution in the furnace with significantly reduced nitrogen oxide (NOx) emissions. Additionally, a new automatic descaling concept was incorporated, reducing the cleaning intervals and optimizing heat treatment processes. The safety systems were upgraded to meet the latest standards for industrial furnaces.
Main image caption: thyssenkrupp Steel Bruckhausen plant, Duisburg, Germany
Press release is available in its original form here.
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