烧结过程余热资源高效回收与利用的热力学分析  

Thermodynamic Analysis on the Effective Recovery and Utilization of Sinter Waste Heat

作　　者：刘文超[1] 蔡九菊[1] 董辉[1] 张琦[1] 齐国超[2] 

机构地区：[1]东北大学国家环境保护生态工业重点实验室,辽宁沈阳110819 [2]辽宁工业大学材料科学与工程学院,辽宁锦州121001

出　　处：《中国冶金》2013年第2期15-20,共6页China Metallurgy

基　　金：国家高技术研究发展计划(863计划)(2009AA05Z215);国际科技合作项目(2011DFR50270);中央高校基本科研业务费资助(N110402005)

摘　　要：烧结过程余热资源的高效回收与利用是目前降低烧结工序能耗的主要方向与途径之一。就本质而言,余热回收与利用过程是一个能量转换与利用的过程,热力学分析是其重要研究手段。采用热力学第一定律和第二定律,针对目前烧结余热利用方式,系统分析了烧结余热资源的产生、转换与利用等环节中各种形式的余热在数量上的守恒和品质上的匹配关系,重点分析了各环节的热效率、火用效率以及火用损失,藉此分析影响余热回收与利用的主要因素及其制约环节,提出提高余热回收与利用的方法与途径。The recovery and utilization of residual heat in sintering process is one of the major directions and methods in reducing the energy consumption of sintering process. Essentially, the process of residual-heats recovery and uti- lization is a process that energy is transformed and utilized, in the research of which the thermodynamic analysis is of great importance. The first and second laws of thermodynamics were applied to analyze the conservative quantity and matched quality of various residual-heat during the generation, recovery and utilization of residual-heat, and espe- cially to focus on the energy efficiency, exergy efficiency and exergy loss. The key factors to affect and restrict the recovery and utilization of residual heat were presented, and its solutions to its improvement were also proposed.

关 键 词：烧结 余热 回收利用 

分 类 号：TF046.4[冶金工程—冶金物理化学]