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1.发明公开METHOD OF PROCESSING COAL ASH AND PROCESSING SYSTEM 有权VERFAHREN ZUR VERARBEITUNG VON KOHLENASCHE UND VERARBEITUNGSSYSTEM
公开(公告)号：EP2103575A1
公开(公告)日：2009-09-23
申请号：EP07832843.2
申请日：2007-11-30
CPC分类号： C04B7/364 , B03B9/04 , C04B7/28 , C04B7/38 , C04B7/4423 , F27B7/20 , Y02P40/126 , Y02P40/145
摘要： [Subject] To effectively utilize coal ash while reducing mercury concentration in cement kiln exhaust gas.
[Means for Solution] Coal ash is received from a thermal power plant or the like; the received coal ash is separated into ash and unburned carbon; the separated ash is utilized in a cement manufacturing facility as a cement raw material; and the separated unburned carbon is utilized in the cement manufacturing facility in accordance with mercury concentration in gas exhausted from a cement kiln of the cement manufacturing facility. In case that the mercury concentration in the gas exhausted from the cement kiln of the cement manufacturing facility is high, in the coal ash, unburned carbon with high mercury content can be treated in facilities other than the cement manufacturing facility without feeding the unburned carbon to the cement manufacturing facility, or the quantity of such unburned carbon fed to the cement manufacturing facility cay be adjusted. It is possible to separate mercury from the separated unburned carbon, and utilize the unburned carbon from which mercury is separated in the cement manufacturing facility as a fuel.摘要翻译： [主题]有效利用煤灰，同时降低水泥窑废气中的汞浓度。 [解决方案]从火力发电厂等接收煤灰; 接收的煤灰分为灰分和未燃碳; 分离的灰分用作水泥制造设备中的水泥原料; 并且分离的未燃碳根据水泥制造设备的水泥窑排出的气体中的汞浓度在水泥制造设施中使用。 在水泥制造设备的水泥窑排出的气体中的汞浓度高的情况下，在煤灰中，含汞量高的未燃烧碳可以在水泥制造设备以外的设施中进行处理，而不将未燃碳 水泥制造设备或供应给水泥制造设备的未燃烧碳的数量可以调整。 可以将汞从分离的未燃烧碳中分离出来，并利用在水泥制造设备中分离汞的未燃烧碳作为燃料。
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公开(公告)号：EP2103575B1
公开(公告)日：2012-01-11
申请号：EP07832843.2
申请日：2007-11-30
CPC分类号： C04B7/364 , B03B9/04 , C04B7/28 , C04B7/38 , C04B7/4423 , F27B7/20 , Y02P40/126 , Y02P40/145
摘要： [PROBLEMS] To effectively utilize coal ash while lowering the concentration of mercury in a gas discharged from a cement kiln. [MEANS FOR SOLVING PROBLEMS] Coal ash from a thermal power plant or the like is received by a system for producing cement. The received coal ash is divided into ash and unburnt carbon. The ash thus divided is utilized as a material for cement in the system for producing cement, while the unburnt carbon thus divided is utilized in the system for producing cement depending on the concentration of mercury in a gas discharged from a cement kiln of the system for producing cement. In the case where gags discharged from the cement kiln of the system for producing cement contains mercury at a high concentration, it is possible that the unburnt carbon in the coal ash, which contains mercury localized therein, is not fed into the system for producing cement but processed outside the system for producing cement or the unburnt carbon is fed in a controlled amount into the system for producing cement. Mercury is removed form the thus separated unburnt carbon and the unburnt carbon, from which mercury has been removed, can be used as a fuel in the system for producing cement.
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