If your furnace is a bottleneck in your operation, it may be time to consider adding a new one. This article reviews the basics of furnace structure and style, refractory selection and combustion design. It concludes with a recent case study.

General Motors Co. (GM) will invest $760 million at its Toledo, Ohio, propulsion manufacturing operations to prepare the facility for production of drive units that will be used in future Ultium-based battery electric trucks, including the Chevrolet Silverado EV, GMC Sierra EV and GMC Hummer EVs. Toledo Propulsion Systems will be GM’s first U.S. powertrain or propulsion-related manufacturing facility transformed for EV-related production. Once the plant is converted, it will produce GM’s family of EV drive units, which convert electric power from the battery pack to mechanical motion at the wheels. GM’s EV drive units will cover front-wheel drive, rear-wheel drive and all-wheel drive propulsion combinations.

Nucor Corp. will invest $200 million over a five-year period in mill modernization projects at its Nucor Steel Berkeley division located in Huger, S.C. A portion of the capital investment will include the construction of a new air-separation unit (ASU) for the purpose of supplying industrial gases for the mill’s steelmaking operations. When complete, the ASU will be operated by UIG LLC, a Nucor wholly owned subsidiary that specializes in industrial gas supply. This project will allow Nucor, through UIG, to produce and supply all the gases needed for the steel mill from the new Nucor-owned facility. Nucor Steel Berkeley is currently supplied with industrial gases under a long-term supply agreement. 

Rio Tinto is investing $29 million to build a new aluminum recycling facility at its Arvida Plant in Saguenay-Lac-Saint-Jean, Quebec, to expand its offering of low-carbon aluminum solutions for customers in the automotive, packaging and construction markets. According to Rio Tinto, the facility will make the company the first primary aluminum producer in North America to incorporate recycled post-consumer aluminum into aluminum alloys. The recycling center is expected to be operational in the second quarter of 2024 and will have an initial capacity of 30,000 tons per year. A remelting furnace equipped with regenerative burners and an automated scrap loading system will be installed in an existing building at the Arvida Plant. 

The year-over-year U.S. inflation rate through February 2022 hit a 40-year high of 7.9%, eroding purchasing power especially for gas, food and rent.

Siderforgerossi Group S.p.A., a global manufacturer of forged products and a portfolio company of KPS Capital Partners, completed the acquisition of Grupo Euskal Forging S.L. and its subsidiaries. Euskal Forging is a manufacturer of forgings and seamless rolled rings, including rings greater than 8 meters in diameter, serving the wind power and mining industries. Headquartered in Irura, Spain, the company operates three manufacturing facilities and has approximately 170 employees. Veneto, Italy-headquartered Siderforgerossi is a vertically integrated manufacturer of rolled and forged products with capabilities across the manufacturing spectrum, including open-die and closed-die forging. 

Today’s combustion systems are efficient, have low environmental footprint and deliver quality heating of the product.

High-temperature processes – such as those required to manufacture metal products – are very difficult to monitor, model and control.

Nucor Corp. is partnering with the University of Kentucky (UK) Research Foundation to test a carbon dioxide (CO₂) capture system at Nucor Steel Gallatin. This is one of 12 research projects being funded by a Department of Energy grant to advance point-source carbon-capture and storage technologies that can capture CO₂ emissions generated from natural gas power plants and industrial facilities that produce commodities like steel. More than 50 industry and university experts are working together to tackle the difficult challenge of applying carbon-capture and sequestration techniques to an electric-arc furnace (EAF) steelmaking process. Once this pilot is complete, Nucor and UK will have a better understanding of the costs and effectiveness of carbon-capture technology for flue gas with low CO₂ content and the feasibility of replication of this technology at other EAF steel mills.

SMS group has been chosen by Jindal Stainless Ltd. (JSL) to build a new blast furnace at its Kalinganagar unit in India. The blast furnace will have a production capacity of 2 million tons of hot metal per year. The plant will serve both existing downstream steelmaking facilities and future facilities. The blast furnace will be the first in JSL’s new stainless steel complex, which is currently based on electric-arc furnace (EAF) technology, and will be the core of JSL’s Kalinganagar plant expansion. Commissioning of the plant is expected by the end of 2023. The project is another step toward India’s goal of bringing the country’s domestic production to 300 million tons by the end of the decade.