AISTech is North America’s largest annual iron and steel technology conference and exposition. It provides a global perspective on today’s marketplace by featuring technologies from all over the world that help steelmakers to compete more effectively. With more than one hundred technical sessions and more than three hundreds individual presentations, attendees can plan their day around our conference schedule and learn about the latest products and processes happening in every aspect of the steelmaking process.
Tenova will attend AISTech exhibition in Pittsburgh at booth 1433, where we will be featuring our advanced iron and steelmaking technologies. Tenova experts representing a wide range of product lines will be available to discuss our latest innovations. Tenova is also a very active participant at the AISTech technical conference with ten different presentations covering numerous important topics: from the decarburization of the steel industry, with a focus on DRI technologies and the reduction of emissions (NOx and melt shop emissions), to the evolution in electrical steel strip and burners for reheating, and to the digital solutions for roll texturing.
Conference Program with Tenova Experts
Monday, May 16
9:30AM - 10:00AM
Decarbonizing the Steelmaking Industry through Gas-Based Direct Reduction
Jorge Martinez, Tenova HYL
For the decarbonization of the steelmaking industry, there are two main routes. One consists of the progressive conversion of the blast furnace (BF)-basic oxygen furnace (BOF) to direct reduced iron (DRI)-electric arc furnace (EAF) facilities. The second alternative is the production of hot metal (HM) by installing a gas-based direct reduction plant feeding DRI to an open-slag bath furnace (DRI-OSBF). This allows the integrated mill steelmaker to optimize investment costs by keeping its downstream facilities in operation while replacing only the BF ironmaking installation. For either route, the reduction of CO2 emissions can be further enhanced by the partial use of hydrogen (H2) for DRI production.
2:00PM - 2:30PM
Addressing Operating Cost, Productivity and Emissions Challenges Associated With Dirty, Oily Scrap at Metalfer Steel Mill, Serbia
Vittorio Scipolo, Tenova Goodfellow Inc.; Nikola Zlatkovic, Metalfer Steel Mill; Prashant Bihare, Tenova Goodfellow Inc.
Dirty, oily scrap leading to heavy CO and H2 emissions is always problematic and a real challenge for many steelmakers. Tenova’s intelligent electric arc furnace solutions, NextGen® hybrid/extractive offgas analysis and comprehensive process control models, were employed to optimize and dynamically control the chemical injection system and successfully lower CO emissions and fume system heat load, while achieving outstanding performance results for increased productivity and reduced electrical (10%), natural gas (30%) and power-on time. Despite Covid-19 limitations, project results will show how Tenova’s Industry 4.0-compliant technology enabled an effective remote internet-based support for installation and process optimization for Metalfer Steel Mill, Serbia.
3:00PM - 3:30PM
The Evolution of Continuous Annealing and Processing Lines for the Production of Electrical Steels
Stefano Martines, Tenova; Christian Wuppermann, Tenova LOI Thermprocess
The market demands for electrical steel is currently driven by strong initiatives toward electro-mobility and large infrastructural projects to optimize power networks toward extended capacities of renewable energies. Therefore, new steel grades with thin and ultrathin gauges have been developed to improve the efficiency of components containing non-grain oriented and grain-oriented electrical steel. The production of these advanced silicon steel grades has highest demands on heat treatment and processing lines. In the present study, the recent Tenova developments in technology for silicon strip heat treatment and processing are described.
Tuesday, May 17
11:30AM - 12:00PM
The Tenova Hydrogen SmartBurner for Reheating: Analysis of the Industrial Results in TenarisDalmine
Alessandro Della Rocca, Tenova S.p.A.; Mattia Bissoli, Tenova S.p.A.; Davide Astesiano, Tenova S.p.A.; Guido Jochler, RINA S.p.A.; Fabio Praolini, Tenaris S.p.A.
Lower costs, increased productivity and yield, reduced emissions, and maintaining safety are key drivers for all electric arc furnace (EAF) operations. The recent installation of a NextGen® hybrid laser/extractive offgas system together with i EAF® process control software at Steel Dynamics Inc. (SDI) - Engineered Bar Products Division has demonstrated significant reductions in electrical and chemical energy, electrode consumption, and greenhouse gas emissions. The offgas system also improved safety by early detection of numerous actual EAF water leaks and by monitoring downstream flammability using CO, H2 and O2 downstream analysis. This paper will focus on confirmed operational and safety benefits realized at the facility.
11:30AM - 12:00PM
Water Leak Detection and Process Optimization Using Intelligent EAF Technology at SDI Pittsboro
Colin Meidell, Steel Dynamics Inc.; Vittorio Scipolo, Tenova Goodfellow Inc.; Elena Uchiteleva, Tenova Goodfellow Inc.; M. Khan, Tenova Goodfellow Inc.
Lower costs, increased productivity and yield, reduced emissions, and maintaining safety are key drivers for all electric arc furnace (EAF) operations. The recent installation of a NextGen® hybrid laser/extractive offgas system together with i EAF® process control software at Steel Dynamics Inc. (SDI) - Engineered Bar Products Division has demonstrated significant reductions in electrical and chemical energy, electrode consumption, and greenhouse gas emissions. The offgas system also improved safety by early detection of numerous actual EAF water leaks and by monitoring downstream flammability using CO, H2 and O2 downstream analysis. This paper will focus on confirmed operational and safety benefits realized at the facility.
2:00PM - 2:30PM
A Digital leap in process and technology for Roll Texturing for High Quality Cold Roll Steel
Andrea Gariano, Tenova; Alfredo Brambilla, Tenova Inc.
PDTTM is a proprietary technology developed and patented by Tenova for roll texturing and was introduced in the industrial production in 2016. The first installations in different plants show PDTTM's capability of satisfying the requirements for high-quality steel and metal sheet for high-end applications, and further expands users’ possibilities through process customizations. Improved roll wear, optimized combination of roughness and peak count, optimal waviness, and crater distribution are some of the offered benefits.
3:00PM - 5:00PM
Panel Discussion: Mitigating Labor Issues and Supply Chain Disruptions
Bill Seres, Steel Dynamics Inc.; Carl Wendell, Middough Inc.; Fabrizio Rambaldi, Tenova Core
3:30PM - 4:00PM
Case Study for Optimized Indoor/Outdoor Environmental Solution – Reducing Meltshop Emissions and Heat Load
Dejan Zrelec, Tenova Goodfellow Inc.
Every meltshop could be reasonably optimized to achieve balanced performance, maximizing capture efficiency, minimum fugitive emissions and heat stress. Due to capital and operational cost, filtering capacity is only a part of the solution that should be configured after all other components are finalized. In comparison to the electric arc furnace, basic oxygen furnace (BOF) meltshops have a significant disadvantage with the complexity of the solution. A case study will be presented using a recent BOF meltshop example, focusing on finding the optimized balanced solution between local fume capture efficiency, fugitive emissions capture efficiency and controlled heat load within the building. Computational fluid dynamics modeling clarifies issues, solutions and performances.
3:30PM - 5:00PM
Panel Discussion: Roll Grinder Rebuild Projects
Alfredo Brambilla, Tenova Inc.; Kyle Sims, Cleveland-Cliffs Burns Harbor; Joe Porter, North Star BlueScope Steel LLC; Kalyan Khan, U. S. Steel Research and Technology Center; Howard Zeigler, WHEMCO Inc.; Mike Chociej, Herkules North America; Troy Smith, Novelis Inc. ; Mike Sant Peters, Abbott Machine Co.; Michael Fick, Kleinknecht
Wednesday, May 18
9:00AM - 9:30AM
LOWNOX Meltshop: An Innovative Process Approach for NOx Emissions Reduction
Francesco Memoli, Tenova
