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1概况我厂现有9台中压煤粉锅炉,担负着为氧化铝生产供汽的主要任务,其中9#炉为UG-160/3.82-M型锅炉,于2003年开始建设,2004年5月13日准备并汽试运行,但在并汽后逐渐带负荷过程中,汽温急剧由420℃降低到300℃以下,尝试3次均因同样原因并汽失败。经过在并汽过程中对参数的分析,最终确定了并汽失败的原因,进行了处理,于2004年5月31日正常并汽。2锅炉蒸汽系统9#炉为单锅筒自然循环锅炉,过热器由顶棚管、
1 Overview Our existing 9 sets of medium-pressure pulverized coal boilers, responsible for the production of alumina for the main steam supply, of which 9 # furnace UG-160 / 3.82-M-type boiler, started construction in 2003, May 2004 On the 13th, it was prepared and run on a steam test. However, during the gradual load-carrying process after the co-vaporization, the temperature of the steam suddenly dropped from 420 ° C to below 300 ° C. Three attempts were made to fail the same reason. After the process of gas and the parameters of the analysis, and ultimately determine the cause of FAW failure, was processed, in May 31, 2004 and normal steam. 2 boiler steam system 9 # boiler for a single drum natural circulation boiler, superheater by the roof tube,