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引风机叶轮粘灰的来源是燃煤锅炉烟气中的飞灰,烟气中飞灰含量较高时,容易在叶轮上结灰。粘灰也与目前流行的湿式除渣、除尘方式有关,还与频繁压火停炉有直接关系。压火时,由于烟囱的抽吸作用,炉膛及烟道内仍有气流流动,使炉膛内的湿蒸汽经风机叶轮而凝结粘灰,且粘灰的不均匀程度明显高于其它情况,更易引起风机的振动。
Induction fan impeller sticky ash is the source of fly ash in coal-fired boiler flue gas, high fly ash content in the flue gas, easy to ash on the impeller. The sticky ash is also related to the prevailing wet slag removal and dust removal methods, and it is also directly related to frequent fire suppression and shutdown. During the fire, due to the suction effect of the chimney, there is still air flow in the furnace and the flue, so that the wet steam in the furnace condenses and sticks ash through the fan impeller, and the unevenness of the viscous ash is obviously higher than other conditions, The vibration.