ArcelorMittal orders two LD converters (BOFs) and gas cleaning systems for steel plant in Brazil

• Two new 135-ton LD converters (BOFs) with innovative and maintenance-free suspension solutions and modern slag retention systems
• Revamp of primary dedusting systems will reduce emissions to levels significantly below the legal limit in Brazil
• Startup scheduled for the first quarter of 2025

ArcelorMittal has recently contracted Primetals Technologies for the revamping of two LD converters (BOFs) at its steel plant in Jõao Monlevade, Brazil. The order encompasses two new 135-ton converters, an upgrade of the primary dedusting systems, and complete electrics and automation packages.

In addition to the new equipment’s technological advantages, the main influencing factors for ArcelorMittal’s decision were other recently completed projects – such as the new desulphurization plant started in 2018 – and the fact that ArcelorMittal, over time, had built a strong partnership with Primetals Technologies in Brazil.

The upgraded wet-type primary dedusting systems capture dust from the converters and send it to a water treatment plant. The resulting emissions will be significantly below the legal limit set by the Brazilian government. Additionally, the new solution will require much less maintenance than the equipment currently in use. Therefore, the availability of the meltshop will increase.

Primetals Technologies will supply vessels, trunnion rings, suspension systems, tilting drives, bearings, pedestals, and new off-gas cleaning systems for both new converters. A maintenance-free suspension system, Vaicon Link 2.0 keeps the vessel stable and makes thermal expansion in all directions possible. Vaicon Stopper, a slag retention system, minimizes the amount of slag that enters the ladle during tapping. This system ensures shorter production cycles and higher steel quality compared with conventional slag retention systems.

Primetals Technologies will also supply a complete electrics and automation package, including basic (Level 1) automation systems, motors, and drives. The startup of the new equipment is scheduled for the first quarter of 2025.

With a history spanning close to 90 years, ArcelorMittal Monlevade produces wire rod for industrial applications such as steel wool and steel cord. The site is part of ArcelorMittal Brazil’s Long Steel division and has an annual capacity of 1.2 million tons.

Primetals Technologies, Limited, headquartered in London, United Kingdom, is a pioneer and world leader in the fields of engineering, plant building, and the provision of lifecycle services for the metals industry. The company offers a complete technology, product, and services portfolio that includes integrated electrics and automation, digitalization, and environmental solutions. This covers every step of the iron and steel production chain—from the raw materials to the finished product—and includes the latest rolling solutions for the nonferrous metals sector. Primetals Technologies is a Group Company of Mitsubishi Heavy Industries, with around 7,000 employees worldwide. To learn more about Primetals Technologies, visit the company website www.primetals.com.