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我国现有工业锅炉的燃煤以混煤为主,其中粉煤含量较高,甚至超过50%,大大超出了层燃锅炉尤其是链条炉排锅炉对燃煤粒度的要求,锅炉一般采用煤斗给煤,混煤经煤闸板后形成密实的煤层,大颗粒煤之间的间隙被粉煤填满,造成通风困难,颗粒煤集中的地方易形成火口,使整个炉膛燃烧不均匀、增加机械和化学不完全燃烧损失,影响锅炉出力。青岛开源热力公司采用新型实用专利技术——分层给煤及燃烧技术——对锅炉给煤装置进行改造,有效地克服了链条炉排锅
The existing coal-fired industrial boilers in coal-based, of which high content of pulverized coal, or even more than 50%, far beyond the flame-fired boilers, especially chain grate boilers on the coal size requirements, the boiler generally used bucket Coal, coal blend through the coal gate to form a dense coal seam, the gap between the large particles of coal is filled with pulverized coal, resulting in ventilation difficulties, easy to form a place where the pellets of coal to make the entire furnace uneven combustion, increase machinery And chemical incomplete combustion loss, affecting the boiler output. Qingdao open-source thermal companies to adopt a new patented technology - layered coal and combustion technology - to the boiler to coal plant to transform, effectively overcome the chain grate pan