210 t转炉氧枪与熔池作用物理模拟与工业实践研究

炼钢 ›› 2025, Vol. 41 ›› Issue (2): 30-37.

210 t转炉氧枪与熔池作用物理模拟与工业实践研究

邓必荣¹，周剑丰¹，刘红军¹，齐江华¹，肖爱达¹，张波²，周宇涛²

1.湖南华菱涟源钢铁有限公司，湖南娄底 417009；
2.湖南工业大学材料与先进制造学院，湖南株洲 412007

出版日期:2025-04-05 发布日期:2025-04-02

Physical simulation and industrial testing of the interaction between oxygen lance and molten pool in a 210 t converter

Online:2025-04-05 Published:2025-04-02

摘要/Abstract

摘要： 为解决210 t大型转炉供氧强度低、冶炼周期长的问题，设计了10支氧枪喷头并开展了水模试验。结果发现5孔氧枪射流形成的冲击坑独立性更好，相同氧流量下，冲击深度要大于6孔氧枪，其中3号枪和4号枪的冲击深度优势明显。冲击面积（半径）随倾斜角的增大而显著增加，3号、4号、9号和10号枪均具有较好的冲击面积。因此，以3号枪为试验用新5孔氧枪，9号枪为试验用新6孔氧枪开展工业试验，并将冶炼效果与原6孔氧枪进行对比。工业试验结果表明：新6孔氧枪脱磷效果最优，原6孔氧枪脱磷效果最差；相比于原6孔氧枪，新5孔枪不具有缩短供氧时间的能力，而新6孔枪供氧时间平均缩短22 s；新5孔氧枪寿命不及原6孔氧枪，而新6孔枪与原6孔枪寿命相当；相比于原6孔枪，新6孔枪在降低渣中全铁含量和钢铁料消耗上效果明显。

关键词: 210 t转炉, 水模试验, 工业化试验, 氧枪喷头, 供氧强度, 脱磷率

Abstract: To solve the problems of low oxygen supply intensity and long smelting cycle in the 210 t large converter, 10 oxygen lance nozzles were designed and water model test were performed. The results showed that the impact cavity formed by the 5-hole oxygen lance jet had better independence, and under the same oxygen flow rate, its impact depth was greater than that of the 6-hole oxygen lance. Among the ten oxygen lance nozzles, the nozzle 3 and nozzle 4 have the best impact depth. The impact area (radius) significantly increases with the increase of inclination angle, and the nozzle 3, 4, 9 and 10 have better impact areas compared with other nozzles. Therefore, the nozzle 3 was used as the new 5-hole oxygen lance for industrial testing, and the nozzle 9 was used as the new 6-hole oxygen lance for industrial testing. The experimental results were compared with the original 6-hole oxygen lance. The industrial test results show that in terms of phosphorus removal ability, the new 6-hole lance is the best, while the original 6-hole lance is the worst. Compared to the original 6-hole lance, the new 5-hole lance does not have the ability to shorten the oxygen supply time, while the average oxygen supply time of the new 6-hole lance is shortened by 22 s. In terms of lifespan, the new 5-hole lance is not as good as the original 6-hole lance, while the lifespan of the new 6-hole lance is equivalent to that of the original 6-hole lance.Compared to the original 6-hole lance, the new 6hole lance has a significant effect on reducing the total iron content in slag and steel material consumption.

Key words: 210 t converter, water model test, industrial testing, oxygen lance nozzle, oxygen supply intensity, dephosphorization rate

邓必荣, 周剑丰, 刘红军, 齐江华, 肖爱达, 张波, 周宇涛. 210 t转炉氧枪与熔池作用物理模拟与工业实践研究[J]. 炼钢, 2025, 41(2): 30-37.

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[5]	何顺生1，杨文远2，李任春1，王明林3，唐文明1，冯超2. 邯宝大型转炉炼钢工艺优化的研究[J]. 炼钢, 2019, 35(5): 16-22.
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[10]	富强, 郭晓春,王志强,王健. 120 t转炉少渣冶炼工艺研究和实践[J]. 炼钢, 2017, 33(6): 5-8.
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[12]	陈均1，黄基红2，喻林2，梁新腾1，汪盼2，曾建华1. 200 t半钢炼钢转炉提高供氧强度的工艺实践[J]. 炼钢, 2017, 33(5): 61-65.
[13]	郝华强1,2，张朝发2，刘善喜2，张玉柱1,3，郝素菊3. 65 t转炉氧枪喷头工艺参数优化[J]. 炼钢, 2016, 32(2): 9-11.
[14]	张春杰郝强王玉生毛素娟. 石灰石部分替代石灰转炉炼钢技术研究与应用[J]. 炼钢, 2015, 31(5): 47-50.
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