青海快3

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生活垃圾焚烧发电厂固体废物处理技术

责任编辑:金工机械 发表时间:2016-06-19 14:25

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  炉渣是由陶瓷和砖石碎片、石头、玻璃、熔渣、铁和其他废旧金属及未燃尽的可燃物组成的不均匀混合物。大颗粒炉渣(>20mm)以陶瓷、砖 块和铁为主,小颗粒炉渣(<20mm)则主要为熔渣和玻璃。原状炉渣呈黑褐色,风干后为灰色,含水率为10.5%~19.0%,自然堆积密度为 0.86g/cm³,振捣实密度则为1.05g/cm³。焚烧炉渣有刺激性气味,像臭鸡蛋,久闻有眩晕感。炉渣中Fe的总含量在5%~8%,主要为铁罐和 少量的铁丝、铁钉和瓶盖之类的物质。去除铁后的炉渣主要含熔渣、陶瓷碎片、砖石和玻璃,可燃物的总量小于0.5%,比较适合做材料利用。由于炉渣含Fe及 有色金属(主要为Al),与酸性液体接触时,会产生H2,在炉渣资源化利用时可能会造成膨胀等不利影响。炉渣粒径分布主要集中在2~50mm的范围内(占 61.1%~77.2%),小于0.074mm的颗粒不到0.6%,基本符合道路建材(骨料、级配碎石或级配砾石等)的级配要求。