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1.发明公开INDUSTRIAL SALT, AND APPARATUS AND PROCESS FOR PRODUCING INDUSTRIAL SALT 有权VERFAHREN ZUR HERSTELLUNG DES INDUSTRIESALZES INDUSTRIESALZ SOWIE VORRICHTUNG
公开(公告)号：EP2347998A1
公开(公告)日：2011-07-27
申请号：EP09825956.7
申请日：2009-04-15
摘要： [Subject] To provide a low price industrial salt by reducing facility and operation costs without electrodeposition and crystallization and through reduction in quantity of chemicals used.
[Means for Solution] An industrial salt S obtained by the steps of: extracting a part of combustion gas from a kiln exhaust gas passage running from an inlet end 12b of a cement kiln 12 to a bottom cyclone 13; recovering dust D from the extracted gas G2 and washing recovered dust; and drying a filtrate L1 after the washing in a gas stream. The industrial salt can be obtained by removing a calcium component from the filtrate and drying the filtrate from which the calcium component is removed in a gas stream. Further, from the filtrate can be removed sulfate radical, and drying the filtrate from which the calcium component is removed in a gas stream to obtain the industrial salt. For the drying can be used an exhaust gas discharged from a clinker cooler 12a and a spray drier 43 may be used for the drying. Drying in a stream provides industrial salt whose particle size is larger or equal to 20µm and smaller or equal to 500µm.摘要翻译： [主题]通过降低设备和运行成本，不用电沉积和结晶并通过减少使用的化学品的数量来提供低价格的工业盐。 [解决方案]通过以下步骤获得的工业盐S：从从水泥窑12的入口端12b延伸到底部旋风分离器13的窑尾废气通道中提取一部分燃烧气体; 从提取的气体G2回收灰尘D并洗涤回收的灰尘; 并在气流中洗涤后将滤液L1干燥。 工业盐可以通过从滤液中除去钙组分并在气流中干燥除去钙组分的滤液来获得。 此外，从滤液中可以除去硫酸根，并在气流中干燥除去钙成分的滤液，得到工业盐。 为了干燥，可以使用从熟料冷却器12a排出的废气，并且可以使用喷雾干燥器43进行干燥。 在流中干燥提供粒度大于或等于20μm且小于或等于500μm的工业盐。
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公开(公告)号：EP2347998B1
公开(公告)日：2019-10-16
申请号：EP09825956.7
申请日：2009-04-15
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