富氧燃烧加热炉内钢坯氧化烧损影响因素分析  

Analysis of influencing factor on oxidation burning loss of billet in heating furnace with oxygen-enriched combustion

作　　者：王乃帅[1] 温治[1,2] 楼国锋[1,2] 刘利军[1] 冯霄红 张道明 

机构地区：[1]北京科技大学机械工程学院,北京100083 [2]北京科技大学冶金工业节能减排北京市重点实验室,北京100083 [3]重庆赛迪工业炉股份有限公司,重庆400013

出　　处：《金属热处理》2014年第3期13-17,共5页Heat Treatment of Metals

基　　金：中央高校基本科研业务费专项资金(FRF-SD-12-013A)

摘　　要：针对富氧燃烧加热炉内钢坯的氧化烧损问题,基于氧化反应动力学,建立钢坯氧化烧损速率模型,通过模拟计算,逐个分析各操作参数对钢坯氧化的影响规律。结果表明,提高钢坯入炉温度,降低加热终了温度,提高表面升温速率,减少均热时间等均可缩短钢坯在炉时间,降低氧化烧损,提高生产率;随着空气消耗系数及富氧率的增大,钢坯氧化烧损量增加。在保证燃料完全燃烧情况下,可采用较小空气消耗系数,以降低烟气含氧浓度,减少钢坯氧化烧损。Oxidation burning loss rate model of billet was set up based on oxidation reaction kinetics for oxidation burning loss of billet in heating furnace with oxygen-enriched combustion .Effect of various operating parameters on the oxidation of billet was studied by simulation calculation.The results show that those measures , such as increasing the charging temperature and surface heating rate , reducing the discharging temperature and soaking time by cutting down the total time of heating , can reduce the oxidation burning loss and improve productivity .With increasing of air consumption coefficient and oxygen enrichment rate , the oxidation burning loss of billet is enlarged . Smaller air consumption coefficient can reduce the oxidation burning loss of billet in order to reduce the oxygen concentration of flue gas under the condition of the fuel complete combustion .

关 键 词：富氧燃烧 加热炉 氧化烧损 数值模拟 

分 类 号：TG161[金属学及工艺—热处理]