烧结料层中的蓄热模型  

An accumulation heat model and its application in iron ore sintering

作　　者：白晨光[1] 谢皓[1] 邱贵宝[1] 吕学伟[1] 徐刚 卜旭东[1] 

机构地区：[1]重庆大学材料科学与工程学院,重庆400030 [2]重庆钢铁股份有限责任公司,重庆400080

出　　处：《重庆大学学报（自然科学版）》2008年第9期1002-1007,共6页Journal of Chongqing University

基　　金：国家自然科学基金资助项目(50374085);重庆大学创新基金资助项目(20070435)

摘　　要：针对铁矿石烧结过程中存在的自动蓄热现象,建立了一个烧结料层的蓄热模型,并研究了燃烧层厚度、蓄热量在料层中的分配比等参数对烧结蓄热的影响。模拟表明:燃烧层厚度增加,料层蓄热量下降;预热层中蓄热量分配增加,料层蓄热量也增加。高度为300 mm的料层均匀分为上、中、下3层时,计算得到各层蓄热量比为1∶1.08∶1.13。实验室条件下将模型用于烧结燃料的合理分布,燃料的使用量有所降低。An auto-accumulation heat model of material beds was constructed with reference to the iron ore sintering process. The effects of the thickness of the combustion layer and the heat distribution ratio in material beds were studied. Simulation results show that the heat of the material beds declines as the combustion layer thickness increases and heat increases as the distribution of calories in the preheating layer increases. Dividing the 300 mm bed into 3 layers, the ratio of heat accumulation in the upper, middle and lower beds is 1：1.08：1.13. When the model is applied to the rational distribution of sintering fuel under laboratory conditions, the amount of fuel used is reduced.

关 键 词：铁矿石烧结 蓄热模型 模拟计算 燃料合理分布 

分 类 号：TF046.6[冶金工程—冶金物理化学]