SHL6.5—25—Ⅰ型锅炉是十多年前的试制产品。由于这种锅炉设计煤种较优,所以炉排比同类锅炉短,仅5.5米,炉拱也比较高,而目前燃料的供应还不能满足这类锅炉,通常是煤种多变,有什么煤就烧什么煤。在这煤种杂,煤质差的情况下,锅炉就不可避免的出现了炉膛温低、新煤着火迟、燃煤烧不尽等问题,加上因新煤不能及时引燃,司炉只能经常拨火进行补救,这一方面增加了司炉的劳动强度,同时还因冷风大量窜入炉内而进一步降低炉温并增加排烟体积,使 q_2热损失增大。经测定得到有关数据如下表。可见锅炉的 q_2和 q_4两项热 SHL6.5-25-Ⅰ boiler is more than a decade ago trial products. Because of this boiler design coal is better, so the grate shorter than the same type of boiler, only 5.5 meters, the furnace arch is relatively high, but the current fuel supply can not meet this type of boiler, usually coal variety, what coal What coal to burn In this kind of coal miscellaneous, poor quality coal, the boiler will inevitably appear the furnace temperature is low, the new coal fire late, endless burning coal and other issues, coupled with the new coal can not be timely due to ignition, the stove can only Often call for remedy, on the one hand, increased the workload of the fire department, but also due to a large number of cold air fleeing into the furnace to further reduce the furnace temperature and increase exhaust volume, so that q 2 heat loss increased. The measured data are as follows. Visible boiler q_2 and q_4 two heat