焦炭热态性能对高炉产质量影响的统计解析
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摘要
焦炭是高炉重要的燃料之一。为研究不同范围内焦炭热态性能对高炉产质量指标的影响,首先统计实际高炉生产数据,将焦炭热态性能划分为不同区间,利用SPSS软件对不同区间数据进行统计解析,通过线性或非线性拟合得出影响规律和适宜的反应性和反应后强度。鉴于反应性和反应后强度存在较强的负相关性,综合考虑两因素,得出合适的焦炭综合热态性能,从而指导高炉和炼焦生产并提供一种新的焦炭热态性能研究方法。
Coke was one of important fuels.In order to study the influence of thermal properties of the coke in different ranges on the production and quality indicators of the blast furnace,the coke thermal properties were classified into different intervals after the statistics of the actual blast furnace production data. The data of different intervals were statistically analyzed through the SPSS software. The influence law,the appropriate CRI(coke reaction index)and the CSR(coke strength after reaction)were obtained by linear or non-linear fitting methods. Considering the strong negative correlation between the CRI and the CSR,optimum coke comprehensive thermal properties were obtained,so this method can be used to guide the production of the blast furnace and the coking process. In addition,it also provides a new method for the study of coke thermal properties.
Coke was one of important fuels.In order to study the influence of thermal properties of the coke in different ranges on the production and quality indicators of the blast furnace,the coke thermal properties were classified into different intervals after the statistics of the actual blast furnace production data. The data of different intervals were statistically analyzed through the SPSS software. The influence law,the appropriate CRI(coke reaction index)and the CSR(coke strength after reaction)were obtained by linear or non-linear fitting methods. Considering the strong negative correlation between the CRI and the CSR,optimum coke comprehensive thermal properties were obtained,so this method can be used to guide the production of the blast furnace and the coking process. In addition,it also provides a new method for the study of coke thermal properties.
引文
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[9]李海峰,韩立浩,游洋,等.加焦方式对气化炉炉料结构和气流分布的影响[J].中国冶金,2016,26(1):6.(LI Hai-feng,HAN Li-hao,YOU Yang,et al. Influence of coke charging patterns on burden structure and gas flow distribution in melter gasifier[J]. China Metallurgy,2016,26(1):6.)
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[12]吴胜利,庹必阳,张丽华,等.焦炭反应性对高炉块状带含铁炉料还原的影响[J].北京科技大学学报,2013,35(3):282.(WU Sheng-li,TUO Bi-yang,ZHANG Li-hua,et al. Influence of coke reactivity on the ferric burden reduction of the lumpy zone in a blast furnace[J]. Journal of University of Science and technology Beijing,2013,35(3):282.)
[13]郑朋超,张建良,刘征建,等.碱金属对焦炭热性能的影响[J].中国冶金,2017,27(5):19.(ZHENG Peng-chao,ZHANG Jian-liang,LIU Zheng-jian,et al. Effect of alkali metals on thermal properties of coke[J]. China Metallurgy,2017,27(5):19.)
[14] Naito M,Okamoto A,Yamaguchi K. Improvement of blast furnace reaction efficiency by use of high reactivity coke[J]. ISIJ International,2001,87(5):357.
[15] Nomura S,Naito M,Yamaguchi K. Post-reaction strength of catalyst-added highly reactive coke[J]. ISIJ International,2007,47(6):831.
[16]朱利,折媛,湛文龙,等.焦炭高温性能对高炉焦炭负荷影响的生产实践[J].钢铁,2018,53(4):8.(ZHU Li,SHE Yuan,ZHAN Wen-long,et al. Practice for effect of coke high temperature properties on coke burden in blast furnace[J]. Iron and Steel,2018,53(4):8.)
[17] Nomura S,Ayukawa H,Kitaguchi H,et al. Improvement in blast furnace reaction efficiency through the use of highly reactive calcium rich coke[J]. ISIJ International,2005,45(3):316.
[18] Kurunov I F,Emel'Yanov V L,Titov V N,et al. Effect of coke quality on blast-furnace performance indices[J]. Metallurgist,2007,51(11/12):644.
[19]赵贵清.焦炭质量对高炉冶炼过程的影响[J].中国冶金,2007,17(11):14.(ZHAO Gui-qing. Influence of coke quality on blast furnace production[J]. China Metallurgy,2007,17(11):14.)
[2]谢全安,魏侦凯,郭瑞,等.焦炭热性质评价方法的研究进展[J].钢铁,2018,53(9):1.(XIE Quan-an,WEI Zhen-kai,GUO Rui,et al. Present situation of evaluation method of coke thermal properties[J]. Iron and Steel,2018,53(9):1.)
[3]周传典.高炉炼铁技术手册[M].北京:冶金工业出版社,2008.(ZHOU Chuan-dian. Blast Furnace Ironmaking Technical Manual[M]. Beijing:Metallurgical Industry Press,2008.)
[4]吴铿,折媛,刘起航,等.高炉大型化后对焦炭性质及在炉内劣化的思考[J].钢铁,2017,52(10):1.(WU Keng,SHE Yuan,LIU Qi-hang,et al. Consideration on properties of coke and coke deterioration after large-scale blast furnace[J]. Iron and Steel,2017,52(10):1.)
[5]吕庆,王福佳,李豪杰,等.焦炭反应性对高炉炉料熔滴性能的影响[J].钢铁,2016,51(2):10.(LüQing,WANG Fu-jia,LI Hao-jie,et al. Influence of coke reactivity on dropping performance of furnace burden[J]. Iron and Steel,2016,51(2):10.)
[6]毕学工.焦炭质量与高炉冶炼关系的再思考[J].过程工程学报,2009,9(增刊1):438.(BI Xue-gong. Reconsideration of the relationship between coke quality and blast furnace performance[J]. The Chinese Journal of Process Engineering,2009,9(s1):438.)
[7]周师庸,赵俊国.炼焦煤性质与高炉焦炭质量[M].北京:冶金工业出版社,2005.(ZHOU Shi-yong,ZHAO Jun-guo. Properties of Coking Coal and Quality of Coke for the Blast furnace[M]. Beijing:Metallurgical Industry Press,2005.)
[8]刘德军.冶金焦的本质特性与现代高炉冶炼的对应关系[J].钢铁,2016,51(10):78.(LIU De-jun. Relationship between essential characteristic of metallurgical coke and modern blast furnace smelting[J]. Iron and Steel,2016,51(10):78.)
[9]李海峰,韩立浩,游洋,等.加焦方式对气化炉炉料结构和气流分布的影响[J].中国冶金,2016,26(1):6.(LI Hai-feng,HAN Li-hao,YOU Yang,et al. Influence of coke charging patterns on burden structure and gas flow distribution in melter gasifier[J]. China Metallurgy,2016,26(1):6.)
[10] Ujisawa Y,Nakano K,Matsukura Y,et al. Subjects for achievement of blast furnace operation with low reducing agent rate[J]. ISIJ International,2006,45(10):1379.
[11]胡德生,孙维周.重新认识高炉用焦炭与CO2的反应性[J].宝钢技术,2013(6):6.(HU De-sheng,SUN Wei-zhou. Reappraisal of reactivity of blast furnace coke with CO2[J]. Baosteel Technology,2013(6):6.)
[12]吴胜利,庹必阳,张丽华,等.焦炭反应性对高炉块状带含铁炉料还原的影响[J].北京科技大学学报,2013,35(3):282.(WU Sheng-li,TUO Bi-yang,ZHANG Li-hua,et al. Influence of coke reactivity on the ferric burden reduction of the lumpy zone in a blast furnace[J]. Journal of University of Science and technology Beijing,2013,35(3):282.)
[13]郑朋超,张建良,刘征建,等.碱金属对焦炭热性能的影响[J].中国冶金,2017,27(5):19.(ZHENG Peng-chao,ZHANG Jian-liang,LIU Zheng-jian,et al. Effect of alkali metals on thermal properties of coke[J]. China Metallurgy,2017,27(5):19.)
[14] Naito M,Okamoto A,Yamaguchi K. Improvement of blast furnace reaction efficiency by use of high reactivity coke[J]. ISIJ International,2001,87(5):357.
[15] Nomura S,Naito M,Yamaguchi K. Post-reaction strength of catalyst-added highly reactive coke[J]. ISIJ International,2007,47(6):831.
[16]朱利,折媛,湛文龙,等.焦炭高温性能对高炉焦炭负荷影响的生产实践[J].钢铁,2018,53(4):8.(ZHU Li,SHE Yuan,ZHAN Wen-long,et al. Practice for effect of coke high temperature properties on coke burden in blast furnace[J]. Iron and Steel,2018,53(4):8.)
[17] Nomura S,Ayukawa H,Kitaguchi H,et al. Improvement in blast furnace reaction efficiency through the use of highly reactive calcium rich coke[J]. ISIJ International,2005,45(3):316.
[18] Kurunov I F,Emel'Yanov V L,Titov V N,et al. Effect of coke quality on blast-furnace performance indices[J]. Metallurgist,2007,51(11/12):644.
[19]赵贵清.焦炭质量对高炉冶炼过程的影响[J].中国冶金,2007,17(11):14.(ZHAO Gui-qing. Influence of coke quality on blast furnace production[J]. China Metallurgy,2007,17(11):14.)