一种烧结余热利用新工艺研究  

Study on a New Process of Waster Heat Utilization in Sintering

作　　者：张海松[1] 李晓堂[1] 谢国威[1] 段少培 

机构地区：[1]中钢集团鞍山热能研究院有限公司,辽宁鞍山114000

出　　处：《热能动力工程》2017年第3期125-129,共5页Journal of Engineering for Thermal Energy and Power

基　　金：国家自然科学基金项目(61104157)

摘　　要：为最大限度利用烧结余热资源提出一种新工艺,将烧结大烟道烟气与环冷机废气显热结合,采用偏心径向热管技术对其余热回收利用。不增加额外的动力消耗,利用"烟筒效应"将通常排放至大气中的环冷冷却废气引至烧结机尾部对其余热回收利用,扩大了烟气温度回收范围,给出了详细的可行性理论分析并在实际工程中进行应用研究。结果表明,新工艺在不增加额外动力消耗的前提下,不仅余热资源利用率提高25%,而且在一定程度上解决了因烟气温度过低易发生低温腐蚀的难题,系统可靠性大大提高,使用寿命提高了3年。To maximize the utilization of sintering waste heat resource,a new technology for the waste heat recovery is proposed by combining the main flue sensible heat recovery with sinterring cold machine waste heat. Without external power,the annular ring colding waste gas that usually releases into the atmosphere is guided to the sintering machine tail using the 'chimney effect',and expand the scope of flue gas temperature recovery. The corresponding detailed theoretical analysis is given,and this technology is applied and reaseached. The results show that the recovery system of new process without external power not only improves 25% in waste heat recovery,To some extent,but also sloves low temperature corrosion and improves and system reliability; the service life of the equipment improves three years.

关 键 词：偏心径向热管 余热回收 低温腐蚀 烧结 烟气 

分 类 号：TF046.4[冶金工程—冶金物理化学]