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锅炉结焦是燃煤工业锅炉运行中比较普遍的现象。它会破坏正常燃烧工况,减少锅炉出力;破坏正常水循环,造成爆管事故。严重时,还会使炉膛出口堵塞而被迫停炉。1 结焦的原因 (1)煤质煤在燃烧时,其灰分熔融特性温度用变形温度t_1、软化温度t_2和熔化温度t_3数值表示。软化温度t_2的高低是判断煤灰是否容易结焦的主要指标。灰的成份不同,其熔点也不同。煤中的硫化铁、氧化亚
Boiler coking coal-fired industrial boiler operation is more common phenomenon. It will destroy the normal combustion conditions, reduce the boiler output; destroy the normal water cycle, causing squib accidents. In severe cases, the outlet of the furnace will also be blocked and forced to shutdown. 1 coking reasons (1) coal combustion, ash melting characteristics of the temperature with the deformation temperature t_1, softening temperature t_2 and melting temperature t_3 numerical value. Softening temperature t_2 level is to determine whether the main indicators of coal ash coke easily. Different composition of ash, the melting point is also different. Iron sulphide in coal, oxide