Contribution of Control Systems to Energy Savings in Steel Works

Yoshitani, Yasumasa

doi:10.1016/s1474-6670(17)64253-8

Cited by 2 publications

(1 citation statement)

References 5 publications

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“…At the weakest point, generally at the slag level, the liquid steel can melt the tundish wall due to dissolved refractory lining, as seen in Figure 2. Related to this issue when the slag volume increases in tundish then tundish life will be shorter [5]. In other words, due to eroded tundish refractory, casting must be stopped wall to eliminate the risk of process safety [6].…”

Section: Effects Of Ladle Slag On Continuous Casting Processmentioning

confidence: 99%

A review study on ladle slag detection technologies in continuous casting process

Kapusuz

Güvenç

Mıstıkoğlu

2019

International Advanced Researches and Engineering Journal

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In steel production, continuous casting method using BOF or EAF is increasing day by day. However, the complex nature of the continuous casting process poses many challenges for steelmakers. During the general steel production process of liquid steel, the state of ladle slag penetration into liquid steel is one of the most influential factors in steel quality. If the ingress of ladle slag into liquid steel cannot be controlled, undesirable results in terms of poor quality, safety and castability can occur. Generally, ladle slag consists of oxides such as CaO, SiO 2, Al 2 O 3, MgO. In conventional methods, the operator prevents the slag entry by manually controlling it. This method is performed directly by the operator, so the error rate is high. For this reason, it is not desired to be used by steel producers who want high quality products. In this context, steel mills carry out various activities to separate slag from liquid steel. The development of sensor technologies has accelerated the slag detection process. Acceleration and magnetic sensors are among the most widely used methods in this field. In this study, the systems used worldwide for the determination of slag in the continuous casting process were investigated and presented. The advantages and disadvantages of these systems are discussed. The detection methods by considering investment cost, detection time, accuracy were compared and presented. In the scope of this study, it is seen that every method has own advantages and disadvantages over other.© 2019, Advanced Researches and Engineering Journal (IAREJ) and the Author(s).

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Section: Effects Of Ladle Slag On Continuous Casting Processmentioning

confidence: 99%

A review study on ladle slag detection technologies in continuous casting process

Kapusuz

Güvenç

Mıstıkoğlu

2019

International Advanced Researches and Engineering Journal

View full text Add to dashboard Cite

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Optimization of Vortex Slag Entrainment during Ladle Teeming Process in the Continuous Casting of Automobile Outer Panel

Zhou,

Li,

Deng

et al. 2024

steel research int.

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With the thinner of the automobile panel, the press crack defects caused by the large‐size calcium aluminate inclusions at the automakers become obvious. Herein, in order to stabilize the control of calcium aluminate inclusions in the molten steel, the vortex slag entrainment (VSE) of a 300 ton ladle is investigated by the numerical simulation. The effects of the steel throughput, cofferdam height close to the nozzle, and ladle bottom structure on the VSE are analyzed. Results demonstrate that the residual molten steel (RMS) in the ladle and the critical height of the vortex increase with the increasing of the steel throughput. The RMS increases with the increasing of the cofferdam height when the VSE occurs. When the cofferdam height is 50, 100, and 150 mm, the RMS are 4.71, 7.19, and 9.62 t at the initial time of the VSE with a 7.5 ton min−1 steel throughput. In addition, the industrial trial of transforming the flat bottom ladle into the slope bottom ladle is carried out to control the VSE and reduce the RMS. The average weight of the RMS after pouring 25 heats of the slope ladle bottom ladle is 1.85 t less than that of the flat bottom ladle.

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Contribution of Control Systems to Energy Savings in Steel Works

Cited by 2 publications

References 5 publications

A review study on ladle slag detection technologies in continuous casting process

A review study on ladle slag detection technologies in continuous casting process

Optimization of Vortex Slag Entrainment during Ladle Teeming Process in the Continuous Casting of Automobile Outer Panel

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