Collaborative Craftsmanship & Cold-Rolling Confluence

In a landmark industrial integration, international technology group ANDRITZ has achieved final acceptance for a cutting-edge continuous pickling line & acid regeneration plant at voestalpine’s cold rolling mill #3 in Linz, Austria. The installation unifies pickling & rolling processes into one streamlined operation, boosting both productivity & steel quality across various advanced sectors including automotive, construction & household appliances.

Technological Triumph & Tailored Transformation

The integrated setup supplied by ANDRITZ includes a continuous pickling line, acid regeneration plant, acid purification facility, & silicon removal systems. These innovations were developed specifically for processing ultra-high strength steel grades & specialized materials used in e-mobility. With an annual throughput of 1.8 million metric tons, the pickling line operates using hydrochloric acid, which is fully recycled to meet stringent sustainability benchmarks.

Regenerative Refinement & Resource Recovery

A centerpiece of the installation is the world’s most modern acid regeneration system, which transforms spent hydrochloric acid into reusable form while generating high-purity iron oxide as a valuable by-product. This high-purity iron oxide is a key raw material for e-mobility applications, adding further industrial utility to the plant’s ecological ethos. The plant boasts nearly 100% recovery rates, underlining its environmental superiority.

Purification Precision & Pollution Prevention

The acid purification plant ensures that the by-product iron oxide maintains its purity for use in high-tech sectors. Meanwhile, advanced exhaust gas & wastewater treatment units meet top-tier environmental regulations, minimizing the plant’s ecological footprint. These features reinforce voestalpine’s commitment to sustainable metallurgy, while also aligning with EU Green Deal aspirations.

Silicon Segregation & Systemic Stability

To ensure seamless operational continuity, specialized systems for silicon removal have been integrated into the acid loops. These contribute to uninterrupted processing & consistent steel strip quality, avoiding the build-up of residues that typically impair system performance. This attention to chemical balance enables voestalpine to maintain high availability of its cold-rolled products.

E-Mobility Emphasis & Electromagnetic Excellence

This installation plays a critical role in voestalpine’s strategy to cater to the fast-growing e-mobility market. High-strength & electrical steel strips processed here are vital components in electric vehicle infrastructure. The combined pickling & rolling operation allows tailored production of specialty steel grades essential for electric motors, battery housings, & lightweight car body frames.

Manufacturing Milestone & Multinational Merit

Walter Schickmaier, business unit manager at voestalpine, praised the collaboration between the project teams from ANDRITZ & voestalpine. He emphasized that the success of this venture sets new benchmarks in process quality & environmental responsibility. This joint endeavor not only reinforces decades of cooperation between the two firms but also reflects Europe’s push for clean industrial practices.

Industrial Ingenuity & Investment Impact

The engineering, manufacturing, installation, & start-up of this state-of-the-art system reflect the growing investment in sustainable steelmaking across Europe. As steel remains essential to modern infrastructure & innovation, facilities like voestalpine’s upgraded mill exemplify how industrial tradition can coexist with ecological transformation through technological ingenuity.

Key Takeaways

• ANDRITZ delivered a fully integrated pickling & acid regeneration system to voestalpine in Austria, with 1.8 million metric tons/year capacity.

• The acid regeneration plant recovers nearly 100% hydrochloric acid & produces high-purity iron oxide for e-mobility use.

• Silicon removal systems, purification technology & eco-compliant exhaust controls ensure top-quality production & minimal pollution.