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循环流化床(CFB)燃烧技术是近年来在国际上发展起来的高效低污染清洁燃烧技术之一,在我国也得到了迅速的推广应用。焦煤集团热电厂1#炉原为北京巴·威公司1990年生产的B&WB-130/3.82-M型中温中压煤粉炉。原烧优质山西煤,运行成本较高。2000年11月-2001年3月该厂委托北京巴·威公司将其翻新改造为130t/h中温中压CFB锅炉,要求能烧当地劣质煤。锅炉燃用煤质为:Qnet.v.ar=10438～12916kJ/kg,Aar=47.29～55.53%,接近于设计煤质。由于该炉燃用劣质煤,排渣量大(每小时10t以上),再加上锅炉排出热渣温度高达850～950℃,此部分热若不回收将造成较大的灰渣物理热损失,使锅炉热效率下降,另一
Circulating fluidized bed (CFB) combustion technology is one of the most efficient and low-pollution clean combustion technologies developed internationally in recent years and has been rapidly popularized and applied in our country. The 1 # furnace of Coking Coal Thermal Power Plant was originally a B & WB-130 / 3.82-M medium temperature and medium pressure pulverized coal furnace produced by Beijing Bawei Chemical Company in 1990. Original Shanxi coal quality, higher operating costs. November 2000 - March 2001 The plant commissioned by Beijing Bawei company to renovate 130t / h medium temperature and pressure CFB boilers, the requirements of burning local poor coal. Boiler combustion of coal as: Qnet.v.ar = 10438 ~ 12916kJ / kg, Aar = 47.29 ~ 55.53%, close to the design of coal quality. As the furnace burning inferior coal, slag discharge large (more than 10t per hour), coupled with the boiler discharge hot slag temperature as high as 850 ~ 950 ℃, this part of the heat if not recycling will cause greater physical heat loss ash, Boiler thermal efficiency decreased, the other