材料期刊网

对鞍钢某360m2烧结机进行了全方位的热工测试与分析，借此研究了中国大型烧结机余热资源的产生、转化、回收与利用过程。研究表明：生产1t烧结矿的燃料消耗为1612.13MJ，余热资源总量为1439.36MJ，能级为0.41。其中，烧结矿与烧结烟气的显热分别占70.87%和29.13%。余热资源中，得以回收的占40.29%。余热产生、转换、回收与利用过程中，由燃料化学转换为烧结矿和烧结烟气温度的损最大，其次是由烧结矿温度转换冷却废气温度的损，最后是由冷却废气温度转化为蒸汽的损。降低损最主要的因素是：减少烧结机和冷却机的漏风率以及设置适宜的冷却废气流量和冷却机内料层厚度。

According to the thermal test and analyzing of a certain sinter machine, the waste heat generation, conversion, recovery and utilizing of the sinter machine were investigated. Taking a 360m2 sinter machine in Angang steel as an example, the results show that the fuel consumption is 1623.13MJ per ton sinter. The production of one ton sinter accompanies with the waste heat is about 1439.36MJ, and the sensible heat of hot sinter and sintering flue gas accounts for about 70.87% and 29.13% respectively. Currently, only the high temperature cooling gas was used which accounts for about 40.29% of the waste heat. In the processes, the maximum exergy loss occurs in the conversion from the chemical exergy of fuels to the temperature exergy of sinter and the flue gas; follows by the conversion from the temperature exergy of sinter to cooling air; and the last is in the conversion from the temperature exergy of cooling air to the exergy of steam. It is the key approach to reduce exergy loss to reduce the air leakage rate of sinter strand and cooler, to set desirable flow rate of cooling gas and sinter thickness in the cooler.