On the way to NET ZERO CO2 emissions with greentec steel: Scheuch as a reliable partner to voestalpine in the field of dedusting technology
As a long-standing and competent partner, Scheuch is once again supplying the dedusting and filtration technology to reduce dust emissions at the voestalpine plant in Linz. In 2023, ground was broken for the construction of an electric arc furnace (EAF), which will replace an existing blast furnace. The new EAF will go into operation at the beginning of 2027 and make a significant contribution to a CO2-reduced future.
Initial situation: Reduction of dust emissions during the transport of alloy materials
The investment in the plant at the Linz site represents one of the first steps towards realizing the technological transition from blast furnace to electric arc furnace as part of voestalpine’s greentec steel phased plan.
The clearing of the construction site for the installation of the EAF requires a repositioning of the material handling at the plant. Starting from the new location of the truck and wagon unloading station, lime and alloy materials will in future be transported to the meltshop via belt conveyors more than one kilometer long. Dust emissions occur particularly during unloading onto the belt conveyors, as well as at the transfer points along the conveyors.
Scheuch was entrusted with the task of capturing the resulting dust emissions in the best possible way and reliably separating them using modern filter technology.
Scheuch solution: Innovative filter technology with intelligent control of the extraction points
A modern filter system with an air volume of 250,000 Bm³/h was implemented to capture and separate the dust emissions generated during unloading. This system is equipped with special extraction boxes and -hoods to effectively capture the emissions.
At the transfer points along the belt conveyors, dust collection is realized via a branched crude gas ductwork with demand-oriented flap control. This optimizes the air volume and subsequently reduces energy consumption.
Scheuch’s solution comprises of crude gas ducts including dampers and extraction hoods along the belt conveyors in the deep bunkers and at the truck and wagon unloading station. Scheuch also delivered a chamber filter including a penthouse. Dust is transported by means of chain conveyors and pneumatic conveying system including dust silo. A Scheuch radial fan, silencers on suction- and pressure-side and a stack system completes the technical solution.
The complete package from Scheuch: Consultancy, planning, production, logistics, installation and commissioning
‘Everything from a single source’ – Scheuch offers the customer the complete package. The system planning, customized to the individual needs of voestalpine, was carried out in close coordination with the project team. The majority of the equipment was manufactured in Scheuch’s own production plants in Europe. Scheuch relies on a high degree of in-house production to ensure the best possible quality of the delivered parts. The entire logistics and delivery were also organized by Scheuch. All installation and commissioning work was carried out by specially trained Scheuch service technicians.
Scheuch expertise: The project team
The project was planned and implemented by an experienced team.
- Michael Buchinger (Project Manager)
- Philipp Plank, Christian Justl (Sales)
- Oliver Labmayer (Project Planner)
- Franz Murauer (Systems Engineer)
- Patrick Gaubinger (Site Manager)
voestalpine is a global pioneer in the green production of steel. With greentec steel, voestalpine is taking a significant step towards sustainability and is developing an ambitious step-by-step plan to reduce CO2 emissions in steel production.
