Industrial experiment and thermodynamic analysis of deoxidization and desulfurization in the LF refining process of clean pipe steel
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摘要: 通過對LF冶煉高級別管線鋼的脫氧熱力學分析和脫硫影響的研究,確定了合理的脫氧劑量.為對比改進效果進行了工業實驗,同時分析了渣中各氧化物和造渣工藝對脫硫效率的影響,給出了首鋼遷鋼要達到高脫硫效率所需的最佳渣系和各指標值,并指出進站20min內是脫硫最關鍵的時段.改進后的工藝可以使LF冶煉周期縮短約8min.Abstract: Deoxidization reaction of high grade pipe steel refining in LF was calculated and analyzed in thermodynamics. The reasonable deoxidizer dosage was obtained. The effects of oxides in slag and the slagging process on desulphurization were investigated by comparing the different factors in industrial experiments. A better slag system and indexes were recommended to increase the desulphurization efficiency. The results indicate that the first 20 min during the LF process is the most important period of desulphurization. The new method can shorten the melting time by nearly 8 min.
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Key words:
- pipeline steel /
- desulphurization /
- deoxidization /
- thermodynamics
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