转炉锰矿直接合金化生产实践
|
摘要
在100 t顶底复吹转炉上使用锰矿自还原压块进行直接合金化工业试验中,并对冶炼过程中钢水和炉渣进行取样分析。研究表明:在采用锰矿自还原压块进行转炉直接合金化时,金属锰的收得率平均为65.17%,但有较大波动;提高转炉终点[C],减少转炉渣量,降低炉渣氧化性可有效提高金属Mn的收得率;当按15 kg/t配入团块,转炉终点温度平均降低18℃,未对转炉的正常冶炼造成影响。
The industrial experiment of direct alloying by manganite self-reducing briquettes was carried out in 100 t top botton combined converter,and the steel and slag were sampled and analyzed during smelting. The results show that the average yield of manganese is 65.17%,but it fluctuates greatly when the manganite ore self-reducing briquettes was added in the converter. Improving the end point of [ C ], reducing the amount of slag and reducing the oxidation of slag can effectively improve the yield of manganese. When the adding amount of the briquettes was 15 kg/t,the average temperature drop 18 ℃,and that will not affect the normal smelting of the converter.
The industrial experiment of direct alloying by manganite self-reducing briquettes was carried out in 100 t top botton combined converter,and the steel and slag were sampled and analyzed during smelting. The results show that the average yield of manganese is 65.17%,but it fluctuates greatly when the manganite ore self-reducing briquettes was added in the converter. Improving the end point of [ C ], reducing the amount of slag and reducing the oxidation of slag can effectively improve the yield of manganese. When the adding amount of the briquettes was 15 kg/t,the average temperature drop 18 ℃,and that will not affect the normal smelting of the converter.
引文
[1]艾立群.锰矿直接合金化实验室研究[D].沈阳:东北大学,1993.
[2]迪林,王平,傅杰.直接合金化炼钢工艺的研究及应用现状[J],特殊钢,2000,21(3):26-30.
[3]艾立群,刘世洲,张华书.锰矿直接合金化研究[J].华北理工大学学报(自然科学版),1996, 18(2):13-17.
[4] Kaneko T, Matsuzaki T and Kugimiya T, et al. Improvement of Mn Yield in Less Slag Blowing at BOF by use of Sintered Manganese Ore[J]. Tetsu-to-Hagan, 1993, 79(8):941-947.
[5] Katsnelson A, Tsukihash F and Sano N. Determination of Manganese and Carbon Activities of Mn-C Melts at 1628K[J]. ISIJ International, 1993, 33(10):1045-1048.
[6]Suito H, Inoue R. Thermodynamic Assessment of Manganese Distribution in Hot Metal and Steel[J], ISIJ International, 1995,35(3):266-271.
[7]熊玮,李光强,陈兆平,等.顶底复吹转炉内锰矿直接合金化的动力学模型[J].过程工程学报,2009, 9(s1):369-373.
[8]苏晓峰.锰矿直接合金化的应用研究[J].河南冶金,2004, 12(6):41-43.
[9]文永才,杜德信,王涛,等.转炉炼钢用锰矿进行直接合金化的热力学分析[J].钢铁钒钛,1997, 18(2):7-10.
[10]赵中福,李小明,沈继胜.转炉炼钢加锰矿提高终点锰含量的试验研究[J],炼钢,2010, 26(1):4043.
[11]王涛,文永才.炼钢转炉内锰矿直接合金化[J].攀钢技术,1996(6):14-19.
[12]吕春风,尚德礼,孙群,等.转炉出钢过程加锰矿直接合金化技术研究[J].炼钢,2015,31(1):40-43.
[13]李红花,黄优明,尹崇丽,等.转炉锰矿直接合金化热力学和动力学分析[J].莱钢科技,2011,154(4):37-39.
[14]李荣生,冯润明,魏国增,等.贫锰矿在转炉炼钢工艺中的应用[J],炼钢,2004,20(1):13-15.
[15]薛正良,余岳,赵栋楠,等.一种复吹转炉用氧化锰复合团块直接合金化炼钢工艺:中国,CN201010245102.1[P]. 2010-12-01.
[16]张波.锰矿自还原压块转炉直接合金化基础研究[D].武汉:武汉科技大学,2014.
[17] Zhang B, Wang D P and Chen B, et al. Experimental Study on Smelting Reduction of Carbon-Bearing Manganese briquettes in Slag Bath[J]. Journal of Iron&Steel Research International,2018, 25(4):417425.
[18]Zhang B,Xue Z L and Zhu T T,et al. Self-Reduction of Manganeserich Slag Briquette Containing Carbon[J]. Journal of Iron&Steel Research International, 2015,22(5):402407.
[19]文永才,董艳华,杜德信,等.用锰矿球团进行钢直接合金化的动力学研究[J].钢铁钒钦,1998, 19(1):9-15.
[20]杨治争.基于转炉双渣冶炼工艺的锰矿直接还原合金化研究[J].炼钢,2013,29(4):3740.
[2]迪林,王平,傅杰.直接合金化炼钢工艺的研究及应用现状[J],特殊钢,2000,21(3):26-30.
[3]艾立群,刘世洲,张华书.锰矿直接合金化研究[J].华北理工大学学报(自然科学版),1996, 18(2):13-17.
[4] Kaneko T, Matsuzaki T and Kugimiya T, et al. Improvement of Mn Yield in Less Slag Blowing at BOF by use of Sintered Manganese Ore[J]. Tetsu-to-Hagan, 1993, 79(8):941-947.
[5] Katsnelson A, Tsukihash F and Sano N. Determination of Manganese and Carbon Activities of Mn-C Melts at 1628K[J]. ISIJ International, 1993, 33(10):1045-1048.
[6]Suito H, Inoue R. Thermodynamic Assessment of Manganese Distribution in Hot Metal and Steel[J], ISIJ International, 1995,35(3):266-271.
[7]熊玮,李光强,陈兆平,等.顶底复吹转炉内锰矿直接合金化的动力学模型[J].过程工程学报,2009, 9(s1):369-373.
[8]苏晓峰.锰矿直接合金化的应用研究[J].河南冶金,2004, 12(6):41-43.
[9]文永才,杜德信,王涛,等.转炉炼钢用锰矿进行直接合金化的热力学分析[J].钢铁钒钛,1997, 18(2):7-10.
[10]赵中福,李小明,沈继胜.转炉炼钢加锰矿提高终点锰含量的试验研究[J],炼钢,2010, 26(1):4043.
[11]王涛,文永才.炼钢转炉内锰矿直接合金化[J].攀钢技术,1996(6):14-19.
[12]吕春风,尚德礼,孙群,等.转炉出钢过程加锰矿直接合金化技术研究[J].炼钢,2015,31(1):40-43.
[13]李红花,黄优明,尹崇丽,等.转炉锰矿直接合金化热力学和动力学分析[J].莱钢科技,2011,154(4):37-39.
[14]李荣生,冯润明,魏国增,等.贫锰矿在转炉炼钢工艺中的应用[J],炼钢,2004,20(1):13-15.
[15]薛正良,余岳,赵栋楠,等.一种复吹转炉用氧化锰复合团块直接合金化炼钢工艺:中国,CN201010245102.1[P]. 2010-12-01.
[16]张波.锰矿自还原压块转炉直接合金化基础研究[D].武汉:武汉科技大学,2014.
[17] Zhang B, Wang D P and Chen B, et al. Experimental Study on Smelting Reduction of Carbon-Bearing Manganese briquettes in Slag Bath[J]. Journal of Iron&Steel Research International,2018, 25(4):417425.
[18]Zhang B,Xue Z L and Zhu T T,et al. Self-Reduction of Manganeserich Slag Briquette Containing Carbon[J]. Journal of Iron&Steel Research International, 2015,22(5):402407.
[19]文永才,董艳华,杜德信,等.用锰矿球团进行钢直接合金化的动力学研究[J].钢铁钒钦,1998, 19(1):9-15.
[20]杨治争.基于转炉双渣冶炼工艺的锰矿直接还原合金化研究[J].炼钢,2013,29(4):3740.