蓄热式轧钢加热炉热工分析  

Thermal Analysis of Regenerative Heating Furnace

作　　者：华建社[1] 陈佳宜[1] 杜金星[1] HUA Jianshe CHEN Jiayi DU Jinxing(College of Metallurgical Engineering, Xi＇an University of Architecture and Technology, Xi ＇an 710055, China)

机构地区：[1]西安建筑科技大学冶金工程学院,陕西西安710055

出　　处：《工业炉》2017年第3期35-38,共4页Industrial Furnace

摘　　要：对某蓄热式轧钢加热炉在连续生产的情况下进行热工测试。测试结果表明:燃料为低热值高炉煤气;钢坯入炉温度为552℃,烟气排烟温度为263℃;热效率为60.80%,生产能耗为0.81 GJ/t。测试结果显示出:蓄热式燃烧技术将高温烟气的大量显热回收,降低了排烟温度和热损失;热装热送技术提高了有效热收入,减少了连铸坯余热浪费。两种技术不仅合理有效地避免了热量浪费,而且在提高热效率和降低炉子能耗上都有贡献。The thermal measurements for a regenerative heating furnace in the condition of processing production are carried out. The results show that the fuel of the furnace is low heating value blast-furnace gas. The charging temperature of slabs is 552℃, flue gas temperature is 263℃. The productivity of the heat treatment furnace is 60.80%, the fuel consumption is 0.81 GJ/t. The test results show that the regenerative combustion technology recoveries a large number of the sensible heat of flue gas with high temperature, and reduces exhaust gas temperature and heat loss. Hot charge and hot delivery technique improves the effective heat input of the furnace, reduces the heat loss of continuous casting billet. Two kinds of tech-nologies not only reasonable and effectively avoid the waste heat, and both contributed to improve the ther- mal efficiency and reduce energy consumption of the furnace.

关 键 词：热工测试 蓄热式燃烧技术 热装热送技术 节能 

分 类 号：TG307[金属学及工艺—金属压力加工]