New Generation of Continuous Casting Plants with Intelligent Manufacturing Strategy

Penn, Johann; Pennerstorfer, Paul; Jungbauer, Andreas

doi:10.1007/s00501-017-0694-4

Cited by 6 publications

(3 citation statements)

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“…Development in steelmaking has been mainly focused on increasing steel quality, productivity, product variability, and process automatization since the CC method was introduced [3]. There was no significant interest in the reduction of emissions or the waste heat recovery, though the steelmaking industry has a large impact on the overall production of CO 2 emissions, see report [4].…”

Section: Heat Recovery In Steelmakingmentioning

confidence: 99%

“…The CC process is a predominant way of liquid steel conversion to solid semifinished products in the form of slabs or billets. The CC processes is attributed to more than 97% of the world's steel production [3,10]. The increased local emissions production in the steel industry is most visualized in China.…”

Section: Continuous Casting Processmentioning

confidence: 99%

“…Well-developed countries made large investments in CC installations during the last decade [12]. Penn et al [3] described the future trends in CC technology. The quality of steel is a frequently discussed topic and some improvements towards quality final products go hand in hand with environmentally friendly approaches, for instance, reducing the cooling water consumption, increasing the speed of casting, optimizing internal logistics, etc.…”

Section: Continuous Casting Processmentioning

confidence: 99%

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Reduction of CO2 Emissions in Steelmaking by Means of Utilization of Steel Plant Waste Heat to Stabilize Seasonal Cooling Water Temperature

Mauder

Březina

2021

Sustainability

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Production of overall CO2 emissions has exhibited a significant reduction in almost every industry in the last decades. The steelmaking industry is still one of the most significant producers of CO2 emissions worldwide. The processes and facilities used at steel plants, such as the blast furnace and the electric arc furnace, generate a large amount of waste heat, which can be recovered and meaningfully used. Another way to reduce CO2 emissions is to reduce the number of low-quality steel products which, due to poor final quality, need to be scrapped. Steel product quality is strongly dependent on the continuous casting process where the molten steel is converted into solid semifinished products such as slabs, blooms, or billets. It was observed that the crack formation can be affected by the water cooling temperature used for spray cooling which varies during the year. Therefore, a proper determination of the cooling water temperature can prevent the occurrence of steel defects. The main idea is based on the utilization of the waste heat inside the steel plant for preheating the cooling water used for spray cooling in the Continuous Casting (CC) process in terms of water temperature stabilization. This approach can improve the quality of steel and contribute to the reduction of greenhouse gas emissions. The results show that, in the case of billet casting, a reduction in the cooling water consumption can be also reached. The presented tools for achieving these goals are based on laboratory experiments and on advanced numerical simulations of the casting process.

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Section: Heat Recovery In Steelmakingmentioning

confidence: 99%

Section: Continuous Casting Processmentioning

confidence: 99%

Section: Continuous Casting Processmentioning

confidence: 99%

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Reduction of CO2 Emissions in Steelmaking by Means of Utilization of Steel Plant Waste Heat to Stabilize Seasonal Cooling Water Temperature

Mauder

Březina

2021

Sustainability

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Solidification Principle in Large Vertical Steel Casting Under the EMS Effect

Zhang

et al. 2023

Metall Mater Trans B

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The surging demand for large high-quality rotor shafts or similar steel components in heavy industries (energy sector) poses new challenges to steelmakers. Based on the experience of conventional ingot and continuous casting, several new process concepts have been proposed, e.g., vertical continuous casting (VCC), semi-continuous casting (SCC), and segment casting (SC), but none of them are optimally put in operation. The main problems include the control of the as-cast structure and macrosegregation. Electromagnetic stirring (EMS) is necessary to obtain the center equiaxed zone, but EMS-induced multiphase flow can cause severe macrosegregation and uneven distribution of the as-cast structure between equiaxed and columnar. In this study, an advanced mixed columnar-equiaxed solidification model was used to investigate the formation of the as-cast structure and macrosegregation in an example of SCC with a large format (diameter 1 m). The main role of EMS is to create crystal fragments by fragmentation, which is regarded in this work as the only origin of equiaxed grains. The created equiaxed grains are brought by the EMS-induced (primary and secondary) flow and gravity-induced sedimentation to the central/lower part of the casting. The main goal of this study was to understand the solidification principle of SCC. In addition, a numerical parameter study by varying the EMS parameters was also performed to demonstrate the model capability towards the process optimization of SCC.

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Intelligent manufacturing production line data monitoring system for industrial internet of things

Chen

2020

Computer Communications

109

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New Generation of Continuous Casting Plants with Intelligent Manufacturing Strategy

Cited by 6 publications

References 0 publications

Reduction of CO2 Emissions in Steelmaking by Means of Utilization of Steel Plant Waste Heat to Stabilize Seasonal Cooling Water Temperature

Reduction of CO2 Emissions in Steelmaking by Means of Utilization of Steel Plant Waste Heat to Stabilize Seasonal Cooling Water Temperature

Solidification Principle in Large Vertical Steel Casting Under the EMS Effect

Intelligent manufacturing production line data monitoring system for industrial internet of things

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