The major challenges facing steel production today are reducing energy consumption and greenhouse gas emissions. Part of the solution is an improved refractory lining concept. A mostly overlooked element for better energy efficiency is the permanent lining of the steel ladle. In this study, the influence of the composition of monolithic permanent linings on thermal conductivity is...
HIYIELD project addresses the need for sustainable and competitive steel production, essential to achieving a climate-neutral, circular, and digitized industrial framework. While steelmaking enables green technologies for providing relevant material for climate neutrality, the industry however contributes to 7% of global CO₂ emissions [1]. HIYIELD targets this challenge by promoting circular...
Molten steel temperature control is an important aspect of the steelmaking process, which influences product quality, energy efficiency, and the performance of continuous casting (CC). To include a safety margin, operators often set the endpoint temperature of steelmaking routes such as Basic Oxygen Furnace (BOF) or Electric Arc Furnace (EAF) higher than necessary. This ensures the appropriate...
In recent years, electrode costs have been increasing along with the rising unit price of needle coke. Furthermore, from the perspective of carbon neutrality, efforts to reduce electrode unit consumption have been becoming more active.
In order to suppress the side loss due to oxidation and the tip loss due to sublimation in Ladle Furnace (: LF) electrodes, we improved the LF operation...
The electric steelmaking route since its birth appeared to be a paradigmatic representation of the raising concept of circular economy, as it recycles steel components at the end-of-life products. Moreover, its importance is foreseen to increase according to the increasing demand of decarbonizing steel production to meet the ambitious goals of the European Green Deal.
However, being the...
Catching up productivity gaps in BOF meltshops
The paper is covering the important topic how to identify and eliminate productivity and performance gaps in meltshops.
Comprehensive methodologies are applied taking benchmarking practises including data driven appoaches of operation and metallurgical results into consideration. Furthermore, assessments of installed equipment and applied...
In thermal power plants, heat recovery boilers, smelting plants, coking plants and metallurgical plants, efficient boiler cleaning is required to achieve long operating times with high efficiency levels despite the comparatively difficult fuels. Regular cleaning of the boiler surfaces prevents excessive deposits of flue dust from impairing heat transfer.
Various traditional technologies are...
An optimal exploitation of energetic streams is of utmost importance for the sustainability of steel production not only in their current configuration but also in the perspective of the transition to new C-lean steel production routes. Process off-gases are among these energetic streams that are normally used for electrical and thermal energy production. The possibility of maximizing their...
In this presentation we will show that even for already ‘optimized’ systems, significant opportunities exist to reduce emissions from integrated sites and associated energy costs.This is achieved by combining proven real-time optimization technology with artificial intelligence, based on deep process knowledge and data driven elements. 3-5% savings are achievable without significant capital...
