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工业炉窑在燃烧过程中要排出大量烟气,带走大量的热量,尤其在800℃以上的加热炉,几乎要占炉子总能耗的一半,如果未被利用,这些热量就白白的浪费,而且还要污染大气。因此国内外都十分重视如何利用这些热量,最常见的就是预热燃烧所需的空气,怎样使预热的空气温度尽量的提高,围绕着这预热器进行研究。“阶梯式温差烟气余热利用”这课题是研究直接利用烟气热量的节能技术,其内容是将上一工序炉子高温烟气直接送到下一工序炉温较低的炉内利用,车间内可根据工艺中各个不同的炉温一级级利用下去。这种利用烟气的余热肯定要比借助预热
Industrial kilns in the combustion process to exhaust a large number of flue gas, take away a lot of heat, especially in the furnace above 800 ℃, accounting for almost half of the total furnace energy consumption, if not used, the heat was wasted, But also to pollute the atmosphere. So at home and abroad have paid great attention to how to use these heat, the most common is to preheat the air required for combustion, how to make the preheated air temperature as much as possible, around this preheater for research. “Ladder temperature difference flue gas waste heat utilization” This issue is to study the direct use of flue gas heat energy saving technology, its content is the last process of high temperature flue gas stoves directly to the next process lower furnace temperature utilization, the workshop According to different temperatures in the process of a different level of use down. This waste heat using flue gas is certainly better than with preheating