Numerical simulation on the melting kinetics of steel scrap in iron-carbon bath

Liu, Mengke; Ma, Guojun; Zhang, Xiang; Zheng, Dingli

doi:10.1016/j.csite.2022.101995

Cited by 7 publications

(1 citation statement)

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“…The melting process of scrap consists of three stages: the iron coagulating stage, the carburizing and melting stage, and the full boiling stage [17][18][19]. The iron coagulating stage occurs initially after the steel bar's immersion into the molten bath.…”

Section: Analysis Of Experimental Resultsmentioning

confidence: 99%

Fundamental Study on Electric Arc Furnace Steelmaking with Submerged Carbon Powder Injection with CO2-O2 Mixed Gas

Li,

Wei,

Han

2023

Metals

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The technology of submerged carbon powder injection with CO2 and O2 mixed gas (SCPI-COMG) is a new type of powder injection technology. It can increase the molten bath carbon content and improve the molten steel quality by injecting carbon powder directly into the molten steel with CO2 and O2 mixed gas. To optimize the process parameters of this novel technology, the mechanism of this technology and the effect of SCPI-COMG on EAF steelmaking were investigated in this study. Based on an induction furnace experiment, the effects of molten bath carburization and fluid flow on the scrap melting were analyzed. A mathematical model of the axis of gas jets in liquid steel was built to analyze the impact behaviors of gas jets in liquid steel. Based on the results of this theoretical model, for a gas jet in liquid steel, with α ≥ 20°, the horizontal inject distance decreases with α increasing and with 0° ≤ α ≤ 20°, the horizontal inject distance increases with α increasing. Finally, based on the newly built materials and energy balance model of EAF steelmaking with SCPI-COMG, the influences of the gas-solid parameters on the EAF steelmaking technical indexes were also analyzed.is very useful for optimizing the process parameters of EAF steelmaking with SCPI-COMG. The results of this study are very useful to optimize the process parameters of EAF steelmaking with SCPI-COMG of Gas Jet in Liquid Steel.

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Section: Analysis Of Experimental Resultsmentioning

confidence: 99%