东锅622MW“ W”火焰锅炉结焦原因分析及对策
Applied Energy Technology(2017)
Abstract
W火焰锅炉是燃烧低挥发份煤种的主选锅炉,但W锅炉结焦严重,经常发生因掉大焦造成冷灰斗水冷壁损坏,排渣系统瘫痪等问题.文中分析燃料特性、运行氧量、乏气挡板开度、消旋叶片开度、B风门挡板、C风门挡板、F风门挡板开度以及煤粉细度对锅炉结焦特性的影响,提出了防治措施,锅炉掉焦次数减少,炉膛结焦状况明显改善.
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