龙钢炼铁系统工艺优化研究
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摘要
高炉炼铁是一个复杂的系统工程,它涉及到原料准备、精料水平、设备改造、工艺改进、高炉强化冶炼及生产管理等诸多因素。炼铁系统优化一直是高炉工作者广泛关注和积极探索实践的课题。近年来,龙钢结合自身条件在这方面进行了有益探索和大胆实践。通过系统挖潜、工艺改进、强化管理,围绕炼铁高产、优质、低耗、长寿方针,通过提高入炉原燃料质量、优化炉料结构等提高精料水平;引用先进设备、技术,强化高炉操作,优化炼铁工艺,使高炉利用系数、综合焦比等各项经济技术指标得到明显改善。
本文通过分析影响炼铁系统指标提升的各个因素,结合龙钢炼铁系统生产状况并以生产改进措施及数据为依据,对龙钢铁前系统各个时期的状况进行了对比分析,探索出了龙钢炼铁系统系统进一步优化的方向,通过研究得出如下结果:
(1)坚持精料方针,依靠精料技术,使入炉原燃料质量及稳定性进一步提高是龙钢高炉稳定顺行及进一步强化冶炼提升指标的基础。
(2)高炉操作在实现全风、全风温、高顶压、稳定富氧的基础上,进一步向提高煤比、提高煤气利用及低硅冶炼上转变是龙钢高炉冶炼实现低成本所必须贯彻的指导思想。
(3)以高炉为核心,不断引用实用技术,不断强化设备及炉外管理,给高炉生产创造良好的外围条件也是龙钢炼铁系统必须长期坚持的指导思想。
The process of BF iron making is a complex system engineering, which involves many factors such as material prepare, concentrate level, equipment transformation, technology improvement, BF intensified smelting and production management. Iron making system optimization is a subject which has been widely concerned and is in active exploration and practice by the engineering technicians in the field. Recently, based on its own advantages, LongSteel has a beneficial exploration and brave practice. Depend on tapping the latent power of system, improving technology, strengthening management, encircling the policy of high yield, high quality, low consume, long life in iron plant, improving coke quality and optimizing the BF burden, the concentrate level is increased. The economic and technical indexes such as utilization coefficient and comprehensive coke ratio are improved obviously by fetching in advanced equipment and technology, intensifying blast furnace operation, optimizing iron making process.
This paper analyses every factors which influence the improvement of iron making system indexes, according to LongSteel iron making system status, based on production improvement measures and figures, comparatively analyses the status of system before iron in various periods of LongSteel, explore the direction which further optimize iron making system of LongSteel. From the research, we can make the following conclusion:
1) Insisting on and depending on concentrate principle to making further improvement of the stability and quality of the raw material and fuel is the basic of stable smooth operation and further intensified smelting of LongSteel BF.
2) Basing on the BF operation principles such as: overall blast, overall blow temperature, high top pressure, stable rich-oxygen air blowing, further improving the PCI rate, gas utilization and low silicon smelting is the guiding ideology of carrying out the low cast smelt of LongSteel BF.
3) Taking on BF as core, continuously introducing practical technologies, consolidating the equipment and outside BF management to creating good periphery conditions for BF production is also the guiding ideology of LongSteel iron making system.
本文通过分析影响炼铁系统指标提升的各个因素,结合龙钢炼铁系统生产状况并以生产改进措施及数据为依据,对龙钢铁前系统各个时期的状况进行了对比分析,探索出了龙钢炼铁系统系统进一步优化的方向,通过研究得出如下结果:
(1)坚持精料方针,依靠精料技术,使入炉原燃料质量及稳定性进一步提高是龙钢高炉稳定顺行及进一步强化冶炼提升指标的基础。
(2)高炉操作在实现全风、全风温、高顶压、稳定富氧的基础上,进一步向提高煤比、提高煤气利用及低硅冶炼上转变是龙钢高炉冶炼实现低成本所必须贯彻的指导思想。
(3)以高炉为核心,不断引用实用技术,不断强化设备及炉外管理,给高炉生产创造良好的外围条件也是龙钢炼铁系统必须长期坚持的指导思想。
The process of BF iron making is a complex system engineering, which involves many factors such as material prepare, concentrate level, equipment transformation, technology improvement, BF intensified smelting and production management. Iron making system optimization is a subject which has been widely concerned and is in active exploration and practice by the engineering technicians in the field. Recently, based on its own advantages, LongSteel has a beneficial exploration and brave practice. Depend on tapping the latent power of system, improving technology, strengthening management, encircling the policy of high yield, high quality, low consume, long life in iron plant, improving coke quality and optimizing the BF burden, the concentrate level is increased. The economic and technical indexes such as utilization coefficient and comprehensive coke ratio are improved obviously by fetching in advanced equipment and technology, intensifying blast furnace operation, optimizing iron making process.
This paper analyses every factors which influence the improvement of iron making system indexes, according to LongSteel iron making system status, based on production improvement measures and figures, comparatively analyses the status of system before iron in various periods of LongSteel, explore the direction which further optimize iron making system of LongSteel. From the research, we can make the following conclusion:
1) Insisting on and depending on concentrate principle to making further improvement of the stability and quality of the raw material and fuel is the basic of stable smooth operation and further intensified smelting of LongSteel BF.
2) Basing on the BF operation principles such as: overall blast, overall blow temperature, high top pressure, stable rich-oxygen air blowing, further improving the PCI rate, gas utilization and low silicon smelting is the guiding ideology of carrying out the low cast smelt of LongSteel BF.
3) Taking on BF as core, continuously introducing practical technologies, consolidating the equipment and outside BF management to creating good periphery conditions for BF production is also the guiding ideology of LongSteel iron making system.
引文
[1]徐匡迪.20世纪—钢铁冶金从技艺走向工程科学[J].上海金属,2002,24(1):1-5.
[2]周传典主编.鞍钢炼铁技术的形成与发展[M].北京:冶金工业出版社,1995,125-168.
[3]张春霞,齐渊洪,张旭孝等.中国炼铁系统的节能与环境保护[J].钢铁,2006,41(11):1-5.
[4]张寿荣.关于21世纪我国钢铁工业的若干思考[C].2001年中国钢铁年会论文集(上卷),北京,2001,61-69.
[5]杜鹤桂.我国高炉炼铁生产现状及未来发展分析[J].鞍钢技术,2006,(5):1-5.
[6]杜鹤桂.国外高炉炼铁技术的进步[J].炼铁,1999,18(1):1-5.
[7]Grafeuille F,Jusseau N,Schnieider M,Mosser F.Nicolle R.In:Second European ironmaking conference proceeding.London,1992:205.
[8]张寿荣,银汉.我国钢铁工业的回顾与展望[J].炼铁,1995,14(2):9-10.
[9]朱仁君,李荣壬.宝钢炼铁系统技术进步[J].炼铁,1999,18(3),1-4.
[10]宋阳升.世界炼铁技术的回顾和展望[J].炼铁,1998,17(4):1-5.
[11]常天印.冯建忠.高炉低硅冶炼探析.山西冶金,2005,(02):12-13.
[12]张寿荣.试论我国解放后的炼铁技术路线[J].炼铁,1997,16(4):1-3.
[13]张玉柱主编.高炉炼铁[M].北京:冶金工业出版社,1992,3-4.
[14]宋阳升.21世纪的炼铁技术[J].炼铁,1995,14(5):36-37.
[15]Charles Montgomery,Charles l.Sheets,Matti Kivijarvi,No.3 Blast Furnace,Control System Modernization.AISESteel Technology,2001,78(2):37-44.
[16]罗吉敖.炼铁学[M].北京:冶金工业出版社.1996,56-72.
[17]陈兆明.试谈分装大批重和矿焦混装[J].炼铁,1991,10(6):21-25.
[18]刘秉铎.合理矿石批重的探讨[J].钢铁,1981(07):4-7.
[19]王洪流.南钢炼铁系统技术进步[J].炼铁,2003,22(1):39-41.
[20]汤清华,马树涵.高炉喷吹知识问答[M].第一版,北京:冶金工业出版社,1997.
[21]余琨等著.高炉喷煤[M].沈阳:东北大学出版社,1995,60-90.
[22]李维国.关于国外高炉炼铁技术的几个问题[J].炼铁,1999,18(6):1-4.
[23]魏升明.对炼铁技术发展方向的几点认识[J].炼铁,2006,25(2):55-58.
[24]张殿有主编.高炉冶炼操作技术[M].北京:冶金工业出版社,2006.
[25]R.Petela,W.Huntny,J.T.Price.Energy and exergy consumption and CO_2emissoons in ironkaking process.Advances in Enviromental Research,2002,56(2):56-78.
[26]贺友多编.炼铁学[M].北京:冶金工业出版社,1980:305-310.
[27]马树涵,杨国盼.低燃料比高炉最佳气流分布及控制[J].钢铁,1981,(7):13-21.
[28]成兰伯.论高炉气流的合理分布[J].钢铁,1981(07):8-12.
[29]王炜,陈畏林,杨海林等.高喷煤时高炉鼓风动能的探讨[J].湖南冶金2006,34(3):20-22.
[30]李贵阳,王俊宇.宣钢炼铁系统的技术进步[J].炼铁,2000,19(4):19-22.
[31]张宏星.邯钢2号高炉增产降焦实践[J].炼铁,2000,19(4):36-38.
[32]周传典主编.高炉炼铁生产技术手册[M].第一版,北京:冶金工业出版社,2002:9-35.
[33]糜克勤.最大喷煤量与焦炭质量问题[J].宝钢技术,1997(6):51-54.
[34]邓守强,杨松华.从炉顶加入粒煤的设想[J].炼铁,1997,16(3):53-55.
[35]李永镇.一个新的技术动向—高炉矿焦混装[J].炼铁,1986,5(1):36-44.
[36]沐继尧.矿焦混装料柱透气性研究[J].炼铁,1989,8(2):1-5.
[37]刘元意.中心加焦技术在莱钢2号高炉上的应运[J].炼铁,1997,16(3):43-44.
[38]韩建臻.酒钢高炉装料制度的演变[J].炼铁,2000,增刊:29-31.
[39]杨永宜.高炉气流压强梯度场研究及其理论和实践意义[J].钢铁,1980,21(4):1-6.
[40]付卫国.攀钢1号高炉无料钟炉顶工业试验[J].炼铁,1997,16(2):24-27.
[41]仝锋,韩庆.矿批大小与高炉冶炼关系探讨[C].2000年炼铁生产技术工作会议暨炼铁年会文集.
[42]赵合安.最佳分装批重值的讨论[J].炼铁,1995,增刊:25-27.
[2]周传典主编.鞍钢炼铁技术的形成与发展[M].北京:冶金工业出版社,1995,125-168.
[3]张春霞,齐渊洪,张旭孝等.中国炼铁系统的节能与环境保护[J].钢铁,2006,41(11):1-5.
[4]张寿荣.关于21世纪我国钢铁工业的若干思考[C].2001年中国钢铁年会论文集(上卷),北京,2001,61-69.
[5]杜鹤桂.我国高炉炼铁生产现状及未来发展分析[J].鞍钢技术,2006,(5):1-5.
[6]杜鹤桂.国外高炉炼铁技术的进步[J].炼铁,1999,18(1):1-5.
[7]Grafeuille F,Jusseau N,Schnieider M,Mosser F.Nicolle R.In:Second European ironmaking conference proceeding.London,1992:205.
[8]张寿荣,银汉.我国钢铁工业的回顾与展望[J].炼铁,1995,14(2):9-10.
[9]朱仁君,李荣壬.宝钢炼铁系统技术进步[J].炼铁,1999,18(3),1-4.
[10]宋阳升.世界炼铁技术的回顾和展望[J].炼铁,1998,17(4):1-5.
[11]常天印.冯建忠.高炉低硅冶炼探析.山西冶金,2005,(02):12-13.
[12]张寿荣.试论我国解放后的炼铁技术路线[J].炼铁,1997,16(4):1-3.
[13]张玉柱主编.高炉炼铁[M].北京:冶金工业出版社,1992,3-4.
[14]宋阳升.21世纪的炼铁技术[J].炼铁,1995,14(5):36-37.
[15]Charles Montgomery,Charles l.Sheets,Matti Kivijarvi,No.3 Blast Furnace,Control System Modernization.AISESteel Technology,2001,78(2):37-44.
[16]罗吉敖.炼铁学[M].北京:冶金工业出版社.1996,56-72.
[17]陈兆明.试谈分装大批重和矿焦混装[J].炼铁,1991,10(6):21-25.
[18]刘秉铎.合理矿石批重的探讨[J].钢铁,1981(07):4-7.
[19]王洪流.南钢炼铁系统技术进步[J].炼铁,2003,22(1):39-41.
[20]汤清华,马树涵.高炉喷吹知识问答[M].第一版,北京:冶金工业出版社,1997.
[21]余琨等著.高炉喷煤[M].沈阳:东北大学出版社,1995,60-90.
[22]李维国.关于国外高炉炼铁技术的几个问题[J].炼铁,1999,18(6):1-4.
[23]魏升明.对炼铁技术发展方向的几点认识[J].炼铁,2006,25(2):55-58.
[24]张殿有主编.高炉冶炼操作技术[M].北京:冶金工业出版社,2006.
[25]R.Petela,W.Huntny,J.T.Price.Energy and exergy consumption and CO_2emissoons in ironkaking process.Advances in Enviromental Research,2002,56(2):56-78.
[26]贺友多编.炼铁学[M].北京:冶金工业出版社,1980:305-310.
[27]马树涵,杨国盼.低燃料比高炉最佳气流分布及控制[J].钢铁,1981,(7):13-21.
[28]成兰伯.论高炉气流的合理分布[J].钢铁,1981(07):8-12.
[29]王炜,陈畏林,杨海林等.高喷煤时高炉鼓风动能的探讨[J].湖南冶金2006,34(3):20-22.
[30]李贵阳,王俊宇.宣钢炼铁系统的技术进步[J].炼铁,2000,19(4):19-22.
[31]张宏星.邯钢2号高炉增产降焦实践[J].炼铁,2000,19(4):36-38.
[32]周传典主编.高炉炼铁生产技术手册[M].第一版,北京:冶金工业出版社,2002:9-35.
[33]糜克勤.最大喷煤量与焦炭质量问题[J].宝钢技术,1997(6):51-54.
[34]邓守强,杨松华.从炉顶加入粒煤的设想[J].炼铁,1997,16(3):53-55.
[35]李永镇.一个新的技术动向—高炉矿焦混装[J].炼铁,1986,5(1):36-44.
[36]沐继尧.矿焦混装料柱透气性研究[J].炼铁,1989,8(2):1-5.
[37]刘元意.中心加焦技术在莱钢2号高炉上的应运[J].炼铁,1997,16(3):43-44.
[38]韩建臻.酒钢高炉装料制度的演变[J].炼铁,2000,增刊:29-31.
[39]杨永宜.高炉气流压强梯度场研究及其理论和实践意义[J].钢铁,1980,21(4):1-6.
[40]付卫国.攀钢1号高炉无料钟炉顶工业试验[J].炼铁,1997,16(2):24-27.
[41]仝锋,韩庆.矿批大小与高炉冶炼关系探讨[C].2000年炼铁生产技术工作会议暨炼铁年会文集.
[42]赵合安.最佳分装批重值的讨论[J].炼铁,1995,增刊:25-27.
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