Mechanism of Post Combustion in the Converter

Hirai, Masazumi; Tsujino, Ryoji; Mukai, Toshiki; Harada, Taishi; Omori, Masanao

doi:10.2355/isijinternational1966.27.805

Cited by 18 publications

(15 citation statements)

References 2 publications

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“…It is mainly defined by the amount of blown oxygen and oxygen sucked from the atmosphere into the converter off‐gas stream. The main technological parameters, which influence the post combustion ratio, are the lance height and the blow rate …”

Section: Description Of the Bof Process Modelmentioning

confidence: 99%

Thermodynamic and Kinetic Model of the Converter Steelmaking Process. Part 1: The Description of the BOF Model

Lytvynyuk

Schenk

Hiebler³

et al. 2013

steel research int.

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A new model for the simulation of the converter steelmaking process was developed after the detailed study of existing thermodynamic and kinetic models and approaches. This model consists of the reaction model and models for charge materials melting and dissolution. The reaction model is based on the coupled reaction model, which includes the combination of both thermodynamics and kinetics of the involved phases. The models of charge material melting and dissolution include the definition of the driving force for the melting and dissolution, and the mass transfer coefficients in the metal and slag phases.

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Section: Description Of the Bof Process Modelmentioning

confidence: 99%

Thermodynamic and Kinetic Model of the Converter Steelmaking Process. Part 1: The Description of the BOF Model

Lytvynyuk

Schenk

Hiebler³

et al. 2013

steel research int.

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“…The dynamic process variables like the change in lance height, scrap characteristics, oxygen flow rate and the height of slag foaming exert a substantial effect on the post-combustion ratio. [58] These variables change rapidly particularly during the initial stage of blowing. Due to the above complexity, a simplified approach was considered in order to investigate the effect of post-combustion on Fe t O evolution during the blowing process.…”

Section: Fe T O Generation Modelmentioning

confidence: 99%

Dynamic Model of Basic Oxygen Steelmaking Process Based on Multi-zone Reaction Kinetics: Model Derivation and Validation

Rout

Brooks

Rhamdhani

et al. 2018

Metall Mater Trans B

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“…In this paper only the sub model of the scrap melting will be explained in detail. A more detailed description of the whole model is given in [4,13,15,16]. During the entire process, the chemical composition of the metal and slag phases changes due to the blowing oxygen consumption theory by V.E.…”

Section: Description Of the Dynamic Ld Converter Modelmentioning

confidence: 99%

Evaluation of the Influences of Scrap Melting and Dissolution during Dynamic Linz–Donawitz (LD) Converter Modelling

Penz¹,

Schenk

Ammer

et al. 2019

Processes

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The Linz–Donawitz (LD) converter is still the dominant process for converting hot metal into crude steel with the help of technically pure oxygen. Beside hot metal, scrap is the most important charging material which acts as an additional iron source and coolant. Because of the irrevocable importance of the process, there is continued interest in a dynamic simulation of the LD process, especially regarding the savings of material and process costs with optimized process times. Based on a thermodynamic and kinetic Matlab® coded model, the influences of several scrap parameters on its melting and dissolution behavior were determined, with a special focus on establishing the importance of specific factors on the crude steel composition and bath temperature after a defined blowing period to increase the accuracy of the process model. The calculations reported clearly indicate that the dynamic converter model reacts very sensitively to the chemical composition of the scrap as well as the charged scrap mass and size. Those results reflect the importance of experiments for validation on the diffusive scrap melting model in further research work. Based on that, reliable conclusions could be drawn to improve the theoretical and practical description of the dissolution and melting behavior of scrap in dynamic converter modelling.

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Mechanism of Post Combustion in the Converter

Cited by 18 publications

References 2 publications

Thermodynamic and Kinetic Model of the Converter Steelmaking Process. Part 1: The Description of the BOF Model

Thermodynamic and Kinetic Model of the Converter Steelmaking Process. Part 1: The Description of the BOF Model

Dynamic Model of Basic Oxygen Steelmaking Process Based on Multi-zone Reaction Kinetics: Model Derivation and Validation

Evaluation of the Influences of Scrap Melting and Dissolution during Dynamic Linz–Donawitz (LD) Converter Modelling

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