Effective Desiliconization Method with Swirling Flow of Hot Metal at Blast Furnace Casthouse

Uchida, Yoshiyuki; Kishimoto, Yasuo; Miki, Yuji; Uchida, Tatsuo; Tsutsumi, Ryuji; Ueno, Tomoyuki

doi:10.2355/isijinternational.isijint-2016-023

Cited by 3 publications

(2 citation statements)

References 11 publications

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“…The associated processes include desiliconisation, desulphurisation, and dephosphorisation, and they involve the use of effective agents (e.g. O 2 , Fe x O, and CaC 2 ) with injection technology or mechanical stirring [5][6][7]. Metallurgical units and vessels, such as pig iron runner, torpedo car, transfer ladle, and BOF, are used for pretreatment processes, and the combined employments of vessels differ across various steel plants.…”

Section: Introductionmentioning

confidence: 99%

Thermomechanical modelling of a torpedo car by considering working lining spalling

Jin

Harmuth

Gruber

et al. 2018

Ironmaking & Steelmaking

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Lining spalling can occur in metallurgical vessels since their working linings experience intense thermomechanical loads in service. It is necessary to consider the spalling phenomenon in the thermomechanical modelling to better understand the thermomechanical behaviour of refractory linings. The present study introduces a stepwise volumetric loss method to consider spalling during process cycles, to examine the influence of insulating materials on the thermal and thermomechanical behaviour of the refractory lining of a torpedo car. The results reveal that the application of proper insulating materials with strong insulation effect decreases the heat loss, thermal shock intensity, and joint opening at the hot face although the joint opening during refining stages worsens when severe spalling occurs in certain cycles. The application of compliant insulating materials gives rise to mild thermomechanical loads in the steel shell.

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Section: Introductionmentioning

confidence: 99%

Thermomechanical modelling of a torpedo car by considering working lining spalling

Jin

Harmuth

Gruber

et al. 2018

Ironmaking & Steelmaking

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“…2,3) There has also recently been a laboratory attempt to remove Cu from molten iron by this flux system. 6) To consider the industrial application of Cu removal from molten iron using sulfide fluxes performed in a ladle, we have to understand the reaction between the ladle lining and the FeS-Na2S fluxes, but no related data has yet been reported. The purpose of this work is to investigate the dissolution behavior of MgO and Al2O3 in FeS-Na2S fluxes in order to obtain a basic understanding of the interaction between these refractory materials and FeS-Na2S fluxes.…”

Section: Introductionmentioning

confidence: 99%

Dissolution Behavior of MgO and Al2O3 in FeS–Na2S Fluxes

Lei

Uchida²,

Yoshikawa

et al. 2014

ISIJ Int.

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In order to ascertain the optimal ladle lining to suppress erosion during the removal of Cu from molten iron using FeS-NaS0.5 fluxes, the dissolution behavior of MgO and Al2O3 in FeS-Na2S fluxes was investigated under different experimental conditions (temperatures, atmospheres and crucibles). The results obtained show that carbon saturation, lower CO partial pressure, higher temperature and higher Na2S content in the fluxes lead to higher dissolved Mg and Al contents in the final fluxes. As the degree of MgO dissolution in the fluxes was much greater than that of Al2O3, an Al2O3-based ladle lining is considered to be superior for Cu removal considering the erosion induced by FeS-Na2S fluxes. Finally, the dissolution mechanisms of MgO and Al2O3 in FeS-Na2S fluxes were discussed with regard to the experimental results.

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Cascade model for continuous prediction of silicon content of molten iron with coupled state variable nodes

Han

Cui

Wang

et al. 2023

J. Iron Steel Res. Int.

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Effective Desiliconization Method with Swirling Flow of Hot Metal at Blast Furnace Casthouse

Cited by 3 publications

References 11 publications

Thermomechanical modelling of a torpedo car by considering working lining spalling

Thermomechanical modelling of a torpedo car by considering working lining spalling

Dissolution Behavior of MgO and Al2O3 in FeS–Na2S Fluxes

Cascade model for continuous prediction of silicon content of molten iron with coupled state variable nodes

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