环冷机偏析布料研究  

Segregation feeding on sinter circular cooler

作　　者：田万一[1,2] 张家元[1] 戴传德 张小辉[3] 王建平 

机构地区：[1]中南大学能源科学与工程学院,湖南长沙410083 [2]中冶长天国际工程有限公司,湖南长沙410007 [3]昆明理工大学冶金与能源工程学院,云南昆明650093

出　　处：《中南大学学报（自然科学版）》2015年第4期1182-1188,共7页Journal of Central South University:Science and Technology

基　　金：国家重大产业技术开发专项基金资助项目([2009]1717)~~

摘　　要：以提高环冷机的余热利用量为目标,对环冷机的布料工艺进行优化研究,并研制实现新型布料工艺的设备。基于多孔介质模型和局部非热平衡双能量方程模型建立环冷机内烧结矿冷却过程的仿真模型,利用该仿真模型对环冷机不同分层布料工况下烧结矿冷却过程进行数值仿真试验研究。研究结果表明:按粒径由料面至底部为"中—小—大"分布的工况余热利用量最大,比常规工况提高14.05%。以此工况条件下台车内料层分布状态为理想目标布料状态,着手进行偏析布料斗的设计研发,并且对研制的偏析布料斗进行半工业化试验研究。偏析布料斗在环冷机布料过程中具有较好的偏析布料效果,并且偏析布料状态为理想目标布料状态。To improve waste heat utilization of circular cooler, the optimization research of loading process was studies,and the equipment of the new type loading process was made. A numerical model was developed on the basis of porous medium model and local non-equilibrium thermodynamics model, and the numerical simulation of sinter cooling process with different layer-loadings on segregation feeding was carried out. The results show that the waste heat utilization is the largest when the distribution of particle size is ＂middle—small—big＂（from surface to bottom of sintered bed）,this is the optimal condition, and the waste heat utilization is 14.05% larger than that of the normal condition. The design and experimental of segregation feeding chute were based on the optimal condition. The segregation feeding chute plays a good segregation effect on loading process, whose segregation status is the target segregation status.

关 键 词：环冷机 余热利用 数值仿真 偏析布料 

分 类 号：TF046.4[冶金工程—冶金物理化学] TK115[动力工程及工程热物理—热能工程]