对鞍钢某360m2烧结机进行了全方位的热工测试与分析,借此研究了中国大型烧结机余热资源的产生、转化、回收与利用过程。研究表明：生产1t烧结矿的燃料消耗为1612.13MJ,余热资源总量为1439.36MJ,能级为0.41。其中,烧结矿与烧结烟气的显热分别占70.87%和29.13%。余热资源中,得以回收的占40.29%。余热产生、转换、回收与利用过程中,由燃料化学转换为烧结矿和烧结烟气温度的损最大,其次是由烧结矿温度转换冷却废气温度的损,最后是由冷却废气温度转化为蒸汽的损。降低损最主要的因素是：减少烧结机和冷却机的漏风率以及设置适宜的冷却废气流量和冷却机内料层厚度。
According to the thermal test and analyzing of a certain sinter machine,the waste heat generation,conversion,recovery and utilizing of the sinter machine were investigated.Taking a 360 m2 sinter machine in Angang steel as an example,the results show that the fuel consumption is 1 623.13 MJ per ton sinter.The production of one ton sinter accompanies with the waste heat is about 1 439.36 MJ,and the sensible heat of hot sinter and sintering flue gas accounts for about 70.87% and 29.13% respectively.Currently,only the high temperature cooling gas was used which accounts for about 40.29% of the waste heat.In the processes,the maximum exergy loss occurs in the conversion from the chemical exergy of fuels to the temperature exergy of sinter and the flue gas;follows by the conversion from the temperature exergy of sinter to cooling air;and the last is in the conversion from the temperature exergy of cooling air to the exergy of steam.It is the key approach to reduce exergy loss to reduce the air leakage rate of sinter strand and cooler,to set desirable flow rate of cooling gas and sinter thickness in the cooler.
参考文献
| [1] | 蔡九菊,王建军,陈春霞,陆钟武.钢铁企业余热资源的回收与利用[J].钢铁,2007(06):1-7. |
| [2] | 蔡九菊.中国钢铁工业能源资源节约技术及其发展趋势[J].世界钢铁,2009(04):1-13. |
| [3] | 金德刚;程国彪.安钢烧结厂的余热利用[J].资源节约和综合利用,1997(04):35. |
| [4] | 孟建忠;党荣富.烧结热平衡与节能降耗[J].烧结球团,1998(01):18. |
| [5] | 汪智德;石军;陈列希.攀钢6号烧结机系统热平衡测试结果与降低能耗措施[J].四川冶金,1999(02):19. |
| [6] | 陈同庆;於峰.烧结余热锅炉热平衡分析[J].宝钢技术,1991(04):12. |
| [7] | Neusehbtz D;Spencer Ph;Weiss W.Comparison on Thermo Chemically Calculated and Measured Dioxin Conlents in the Off Gas of a Sinter Plant Part 1[A].Tokyo Japan,1996 |
| [8] | 谢泽民.宝钢1、3号烧结机设置余热回收装置[J].钢铁,2003(11):62-65. |
| [9] | 任贵义.炼铁学[M].北京:中国林业出版社,1996 |
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