改善烧结料层透气性的研究
摘要
厚料层烧结技术,目前已经被广泛应用于国内外各个钢铁企业,如何改善烧结料层的透气性是实现该技术的关键所在,本课题围绕影响烧结料层透气性的因素进行了详细的研究。
在实验室研究阶段设计了两组实验,第一组,采用三因子三水平的正交实验研究生石灰配比、混合机转数、混合时间对料层透气性的影响,第二组实验根据混合料的成球机理以及鞍钢西区烧结使用的铁料物化性能,将澳大利亚矿、齐大山矿、大孤山矿的配比作为因子构成三因子二次回归正交实验,通过实验取得二次回归方程,确定烧结料层透气性最好的配矿方案。
在工业实验阶段,首先对二次混合机进行分段加水改造,改造后混合料中＜1mm部分降低了5.5%,透气性提高了8.1J.P.U；然后,通过完全随机化单因子实验确定了在鞍钢西区烧结的原料条件下最适宜的造球和烧结水分；其次,通过一次回归正交实验方法对二次混合制粒进行工艺优化,将混合机的转数、填充率、返矿做为实验的三个因子,利用质量管理软件Minitab 15对实验结果进行处理分析,确定了因子对烧结料层透气性影响的显著水平；最后,在烧结机布料处添加松料器。通过合理设置松料器的参数,达到了增加烧结料层透气性,提高产量的目的。
本课题立足于鞍钢西区烧结生产实践,同时在结合其工艺特点,对改善烧结料层的透气性进行了全面而系统的研究,其成果具有普遍的推广意义。
Deep bed sintering technique have already been extensively applied steel business enterprise in each at home and abroad currently, how to increasing the sinter-bed permeability is the key of carry out that technical, This article circumambience the factor which influence the sinter-bed permeability carry on a set detailed research.
We design two sets of experiments in the laboratory studied stage, experiment Group one, we adopt three factors three and three levels by orthogonal design, for researches ratio of lime, drum mixer rotation speed, mix time to the influence sinter-bed permeability, experiment Group two is according to the mechanism of mixture pelleted and the raw material basic property of ore which anteel westpart sinter plant used, the amount of Australia mineral and the amount of QiDashan fine mineral and the amount of DaGushan were selected as three factors of two times repressive and orthogonal test, The quation which the two times regressive dertimered give a best blend project for sinter-bed permeability。
In the commercial studied stage, firstly, we reform the added moisture method at secondary mixer, experimen result is that the part of in the under 1 mm mix lower 5.5%,and sinter-bed permeability index raised 8.1 J.P.U, then through one randomed factor test make sure the best added moisture for pelleting and sintering at the property of ore which anteel westpart sinter plant used, third, we adopted linear orthogonal experiment design method to seek optimum parameter of second process of mix and micro-pelletized, select rotation speed of mixer and the percent fillingd and percentage of returns in mix as the factors of experiment, analysis result of experiment and make sure these influence levels by Minitab15 of the quality management software, finally, we set double loosening bar at sinter machine, it can increasing the sinter-bed permeability and production if we set it optimum.
This article basic on the anteel westpart sinter plant production and combine its process characteristics, the research of increasing the sinter-bed permeability is systemly and extensively, the result have popularized value.
在实验室研究阶段设计了两组实验,第一组,采用三因子三水平的正交实验研究生石灰配比、混合机转数、混合时间对料层透气性的影响,第二组实验根据混合料的成球机理以及鞍钢西区烧结使用的铁料物化性能,将澳大利亚矿、齐大山矿、大孤山矿的配比作为因子构成三因子二次回归正交实验,通过实验取得二次回归方程,确定烧结料层透气性最好的配矿方案。
在工业实验阶段,首先对二次混合机进行分段加水改造,改造后混合料中＜1mm部分降低了5.5%,透气性提高了8.1J.P.U；然后,通过完全随机化单因子实验确定了在鞍钢西区烧结的原料条件下最适宜的造球和烧结水分；其次,通过一次回归正交实验方法对二次混合制粒进行工艺优化,将混合机的转数、填充率、返矿做为实验的三个因子,利用质量管理软件Minitab 15对实验结果进行处理分析,确定了因子对烧结料层透气性影响的显著水平；最后,在烧结机布料处添加松料器。通过合理设置松料器的参数,达到了增加烧结料层透气性,提高产量的目的。
本课题立足于鞍钢西区烧结生产实践,同时在结合其工艺特点,对改善烧结料层的透气性进行了全面而系统的研究,其成果具有普遍的推广意义。
Deep bed sintering technique have already been extensively applied steel business enterprise in each at home and abroad currently, how to increasing the sinter-bed permeability is the key of carry out that technical, This article circumambience the factor which influence the sinter-bed permeability carry on a set detailed research.
We design two sets of experiments in the laboratory studied stage, experiment Group one, we adopt three factors three and three levels by orthogonal design, for researches ratio of lime, drum mixer rotation speed, mix time to the influence sinter-bed permeability, experiment Group two is according to the mechanism of mixture pelleted and the raw material basic property of ore which anteel westpart sinter plant used, the amount of Australia mineral and the amount of QiDashan fine mineral and the amount of DaGushan were selected as three factors of two times repressive and orthogonal test, The quation which the two times regressive dertimered give a best blend project for sinter-bed permeability。
In the commercial studied stage, firstly, we reform the added moisture method at secondary mixer, experimen result is that the part of in the under 1 mm mix lower 5.5%,and sinter-bed permeability index raised 8.1 J.P.U, then through one randomed factor test make sure the best added moisture for pelleting and sintering at the property of ore which anteel westpart sinter plant used, third, we adopted linear orthogonal experiment design method to seek optimum parameter of second process of mix and micro-pelletized, select rotation speed of mixer and the percent fillingd and percentage of returns in mix as the factors of experiment, analysis result of experiment and make sure these influence levels by Minitab15 of the quality management software, finally, we set double loosening bar at sinter machine, it can increasing the sinter-bed permeability and production if we set it optimum.
This article basic on the anteel westpart sinter plant production and combine its process characteristics, the research of increasing the sinter-bed permeability is systemly and extensively, the result have popularized value.
引文
[1]烧结矿生产编写组.烧结矿生产[M],冶金工业出版社,1981.1,1-2.
[2]唐先觉.喜迎我国烧结行业的大发展[J].烧结球团,2003,28(3)：1-3.
[3]翁得明.高铁低硅烧结矿研究[J].烧结球团,2001,26(1)：21-24.
[4]张克诚,朱德庆李建等.高硅低铁高料层研究[J].烧结球团,2003,28(1)：54-63.
[5]周取定,孔令坛.烧结理论与工艺[M].长沙：中南工业大学出版社,1992.
[6]李果,张广明,桂卫华,严刚峰等.以透气性为中心的铅锌矿烧结混合料水分智能集成控制[J].中国制造业信息化,2005,34(4)：121-123.
[7]夏铁玉,李政伟,颜庆双等.鞍钢三烧车间600mm厚料层烧结生产实践[J].烧结球团,2003,30(1)：45-46.
[8]任志国,马兵,徐书刚,郭玉伟,陈继忠,王法清等.烧结机布料新技术[J].烧结球团,2005.6,30(3)：21-23.
[9]周康军.梅山烧结厂使用双层松料器的效果[J].烧结球团,2006,31(3)：32-33.
[10]王笃阳,唐贤容.烧结理论与工艺[M].长沙：中南工业大学出版社,1988.
[11]李果,张广明,桂卫华,严刚峰等.以透气性为中心的铅锌矿烧结混合料水分智能集成控制[J].中国制造业信息化,2005,34(4)：121-123.
[12]周先武,陈天柱、左江涛等.低温厚料层烧结技术的应用[J].烧结球团,2003,28(3)：34-36.
[13]烧结工冶金工业部统编,1985(3),98-102.
[14]佐藤武夫(日).改进生石灰添加方法,改善混合料制粒特性[J].烧结球团,1987,12(1)：68-75.
[15]贯增,刘文光,刘来福等.首钢烧结提高生石灰配比的试验及改进[J].烧结球团,2006,31(3)：45-48.
[16]李艳茹,周明顺,翟立委.烧结生产添加粘结剂的实验研究[J].鞍钢技术,2005：15-17.
[17]傅菊英,姜涛,朱德庆编.烧结球团学[M].长沙：中南工业大学出版社,1995：9.
[18]潘宝巨,冯贵忠,葛铸高等.磁铁精矿配加澳粉的低温烧结研究[J].烧结球团,1989(3)：6-11.
[19]邓克,王忠红,周凌嘉.鞍矿三大选矿厂工艺技术改造评述[J].矿业工程,2007,2.5(1)：27-29.
[20]G.S. Peace (1993). Taguchi Methods. Addison-Wesley. Publishing:Company.
[21]高允彦编著.正交及回归试验设计方法[M].冶金工业出版社,1988.
[22]薛俊虎(烧结生产技能知识问答》.北京冶金工业出版社,2003.
[23]何云华,白明华.圆筒混合机内物料运动状态的研究[J].烧结球团,32(1)：1-4.
[24]唐贤容.烧结理论与工艺.中南工业大学出版社.
[25]中南矿冶学院团矿教研室.铁粉造块.冶金工业出版社,1978：3-25.
[26]Rankin.WJ.混合料制粒及其在烧结中的作用[J].烧结球团,1997,2(2)：12-17.
[27]John Wiley & Sons. Categorical Data Analysis. Inc. A, Agresti,1990.
[28]周取定,孔令坛.铁矿石造块理论及工艺,北京：冶金工业出版社,1992：12-14.
[29]上海师范大学数学系.概率统计教研组回归分析及其试验设计[M].上海：上海教育出版社,1978：89-91.
[30]徐瑞图.烧结过程基础理论研究[D].北京：北京科技大学,1988.
[31]谢光国.内外烧结技术发展现状[J],海南矿冶,1995(2)：46-48.
[32]胡宾生,杜鹤桂.小球团烧结工艺的基础研究[J].烧结球团,1991(5)：1-5.
[2]唐先觉.喜迎我国烧结行业的大发展[J].烧结球团,2003,28(3)：1-3.
[3]翁得明.高铁低硅烧结矿研究[J].烧结球团,2001,26(1)：21-24.
[4]张克诚,朱德庆李建等.高硅低铁高料层研究[J].烧结球团,2003,28(1)：54-63.
[5]周取定,孔令坛.烧结理论与工艺[M].长沙：中南工业大学出版社,1992.
[6]李果,张广明,桂卫华,严刚峰等.以透气性为中心的铅锌矿烧结混合料水分智能集成控制[J].中国制造业信息化,2005,34(4)：121-123.
[7]夏铁玉,李政伟,颜庆双等.鞍钢三烧车间600mm厚料层烧结生产实践[J].烧结球团,2003,30(1)：45-46.
[8]任志国,马兵,徐书刚,郭玉伟,陈继忠,王法清等.烧结机布料新技术[J].烧结球团,2005.6,30(3)：21-23.
[9]周康军.梅山烧结厂使用双层松料器的效果[J].烧结球团,2006,31(3)：32-33.
[10]王笃阳,唐贤容.烧结理论与工艺[M].长沙：中南工业大学出版社,1988.
[11]李果,张广明,桂卫华,严刚峰等.以透气性为中心的铅锌矿烧结混合料水分智能集成控制[J].中国制造业信息化,2005,34(4)：121-123.
[12]周先武,陈天柱、左江涛等.低温厚料层烧结技术的应用[J].烧结球团,2003,28(3)：34-36.
[13]烧结工冶金工业部统编,1985(3),98-102.
[14]佐藤武夫(日).改进生石灰添加方法,改善混合料制粒特性[J].烧结球团,1987,12(1)：68-75.
[15]贯增,刘文光,刘来福等.首钢烧结提高生石灰配比的试验及改进[J].烧结球团,2006,31(3)：45-48.
[16]李艳茹,周明顺,翟立委.烧结生产添加粘结剂的实验研究[J].鞍钢技术,2005：15-17.
[17]傅菊英,姜涛,朱德庆编.烧结球团学[M].长沙：中南工业大学出版社,1995：9.
[18]潘宝巨,冯贵忠,葛铸高等.磁铁精矿配加澳粉的低温烧结研究[J].烧结球团,1989(3)：6-11.
[19]邓克,王忠红,周凌嘉.鞍矿三大选矿厂工艺技术改造评述[J].矿业工程,2007,2.5(1)：27-29.
[20]G.S. Peace (1993). Taguchi Methods. Addison-Wesley. Publishing:Company.
[21]高允彦编著.正交及回归试验设计方法[M].冶金工业出版社,1988.
[22]薛俊虎(烧结生产技能知识问答》.北京冶金工业出版社,2003.
[23]何云华,白明华.圆筒混合机内物料运动状态的研究[J].烧结球团,32(1)：1-4.
[24]唐贤容.烧结理论与工艺.中南工业大学出版社.
[25]中南矿冶学院团矿教研室.铁粉造块.冶金工业出版社,1978：3-25.
[26]Rankin.WJ.混合料制粒及其在烧结中的作用[J].烧结球团,1997,2(2)：12-17.
[27]John Wiley & Sons. Categorical Data Analysis. Inc. A, Agresti,1990.
[28]周取定,孔令坛.铁矿石造块理论及工艺,北京：冶金工业出版社,1992：12-14.
[29]上海师范大学数学系.概率统计教研组回归分析及其试验设计[M].上海：上海教育出版社,1978：89-91.
[30]徐瑞图.烧结过程基础理论研究[D].北京：北京科技大学,1988.
[31]谢光国.内外烧结技术发展现状[J],海南矿冶,1995(2)：46-48.
[32]胡宾生,杜鹤桂.小球团烧结工艺的基础研究[J].烧结球团,1991(5)：1-5.