Mathematical Modeling of Iron and Steel Making Processes. Modeling of a DC Electric Arc Furnace. Mixing in the Bath.

Ramírez, Marco; Alexis, Jonas; Trápaga, G.; Jönsson, Pär G.; McKelliget, J.

doi:10.2355/isijinternational.41.1146

Cited by 31 publications

(41 citation statements)

References 3 publications

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“…Because the detection point is outside of the furnace, μ 0 is equal to 4π × 10 −7 H/m, and I AC is approximately equal to 40 kA [16,17]. The bottom of the furnace is 1.3 m away from the ground, the height of the furnace body is around 3.7 m, and the range of the parameter h i is [−8 m, 8 m].…”

Section: Theory Backgroundmentioning

confidence: 99%

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A Non-contact Detection Method for Smelting in Submerged Arc Furnace based on Magnetic Field Radiation

Liu¹,

Chang²

2016

Journal of Magnetics

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This paper demonstrates the key parameter detection for smelting of submerged arc furnace (SAF) based on magnetic field radiation. A magnetic field radiation model for the inner structure of SAF is established based on relative theory of electromagnetic field. A simple equipment of 3D magnetic field detection system is developed by theoretical derivation and simulation. The experiments are carried out under the environment of industrial field and AC magnetic field generated by electrode currents and molten currents in the furnace is reflected outside of the furnace. The experimental results show that the key parameters of smelting including the position of electrode tip, the length of electric arc, and the liquid level of molten bath can be achieved. The computed tomography for SAF can be realized by the detection for smelting.

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Section: Theory Backgroundmentioning

confidence: 99%

“…The currents turn to transverse direction below the liquid surface [16], so B xj = 0 (1 ≤ j < n), and over the liquid surface B xj ≠ 0 ( j ≥ n). In this case both B yj and B zj are the constant 0.…”

Section: Theory Backgroundmentioning

confidence: 99%

A Non-contact Detection Method for Smelting in Submerged Arc Furnace based on Magnetic Field Radiation

Liu¹,

Chang²

2016

Journal of Magnetics

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“…(7), it is relatively simple to obtain the change rate of the magnetic flux density using differential calculus with Eq. (12): (12) Since the detection points are outside of the furnace, μ 0 is equal to 4π × 10 −7 H/m, and I AC is approximately equal to 40 kA [5]. According to the environmental observation in real scene, the values of the parameter a and L are set to a ≈ 8.5 m and L AC ≈ 1.6 m, respectively.…”

Section: (9)mentioning

confidence: 99%

“…The currents turn to transverse direction below the liquid surface [5,2,9], so B xj = 0 (1 ≤ j < n), and over the liquid surface B xj ≠ 0 ( j ≥ n). In this case both B yj and B zj are the constant 0.…”

Section: Modelling the Magnetic Field Distributionmentioning

confidence: 99%

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Array Sensing Using Electromagnetic Method for Detection of Smelting in Submerged Arc Furnaces

Liu¹,

Han²,

Yang³

et al. 2016

Journal of Magnetics

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In this paper, we propose an array sensing detection method for smelting of submerged arc furnaces (SAF) based on electromagnetic radiation. AC magnetic field generated by electrode currents and molten currents in the furnace is reflected outside of the furnace. According to the spatial distribution of electromagnetic field a radiation model of SAF is built. We design a 3D magnetic field sensing array system in order to collect the magnetic field information. Through the collected information, the current distribution characteristics of SAF are described and the key parameters of smelting are obtained. Theoretical simulation and field test show that the curves acquired by the sensing array can accurately reflect the information of the relative displacement when the relative displacement between the array and electrode is 10 cm. Compared with the detection method of 3D single point, the proposed array sensing method of magnetic field obtains better results in terms of realtime and accuracy, and has good practical value for industrial measurement.

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Electric Arc Furnace Stirring: A Review

Conejo

Yan

2023

steel research int.

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Mathematical Modeling of Iron and Steel Making Processes. Modeling of a DC Electric Arc Furnace. Mixing in the Bath.

Cited by 31 publications

References 3 publications

A Non-contact Detection Method for Smelting in Submerged Arc Furnace based on Magnetic Field Radiation

A Non-contact Detection Method for Smelting in Submerged Arc Furnace based on Magnetic Field Radiation

Array Sensing Using Electromagnetic Method for Detection of Smelting in Submerged Arc Furnaces

Electric Arc Furnace Stirring: A Review

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