基于料层最高温度控制的铁矿烧结燃料合理分布  

Fuel appropriate distribution based on the highest temperature control in iron ore sintering

作　　者：李法社[1] 张小辉[1] 张家元[2] 田万一[2] 

机构地区：[1]昆明理工大学冶金与能源工程学院,云南昆明650093 [2]中南大学能源科学与工程学院,湖南长沙410083

出　　处：《中南大学学报（自然科学版）》2015年第2期386-393,共8页Journal of Central South University:Science and Technology

基　　金：云南省人才培养项目(KKSY201452018);教育部博士点基金资助项目(KKQX201352004)~~

摘　　要：利用所建立的铁矿石烧结过程传热数学模型,对某钢铁企业烧结机的常规烧结过程进行模拟计算,得到不同深度的料层最高温度分布,并通过烟气温度计算值与测试值的对比验证模型的可靠性。通过对料层本身所含热量和可利用热量的计算并结合料层最高温度合理取值,得到以0.04 m厚度为单元的各料层燃料含量合理取值,并以此为基础提出燃料合理分布的优化方案。与常规方案、基于平均分层的标准方案在料层最高温度稳定性、最高温度所在区域、冷却速度以及燃料含量的对比结果验证了优化方案的合理性和节能性。A mathematical model of heat transfer in iron ore sintering was established. The highest solid temperature in different depths was obtained to simulate conventional sintering of sinter trolley in an iron and steel company, and the reliability of this model was verified by comparing the simulated and tested values of the flue gas temperature. The reasonable fuel content in every unit thickness（0.04 m） of sintered bed was obtained based on heat calculations and the reasonable highest solid temperature. The optimization solution of fuel appropriate distribution was proposed, and it is proved to be reasonable and energy saving by contrast with conventional and standard solution in respect of the stability and range of the solid highest temperature, the cooling rate and the fuel content in sintered bed.

关 键 词：铁矿烧结 数值模拟 配碳量 合理分布 

分 类 号：TF046.4[冶金工程—冶金物理化学]