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    • 2. 发明公开
    • PROCESS AND APPARATUS FOR MANUFACTURE OF PORTLAND CEMENT
    • VERFAHREN UND VORRICHTUNG ZUR HERSTELLUNG VON PORTLANDZEMENT
    • EP3074360A4
    • 2017-08-23
    • EP14865329
    • 2014-11-19
    • CALIX LTD
    • SCEATS MARK
    • C04B7/02B01J6/00C04B2/02C04B7/43C04B7/48
    • C04B7/434C04B2111/00017Y02P40/121Y02P40/18
    • A method of manufacture of Portland cement clinker is described in a dry process that captures the carbon dioxide emitted from the calcination of carbonate minerals, principally limestone. The process uses an indirectly heated, counter-flow reactor to pre-heat and calcine the cement meal to produce a separate calcined meal and carbon dioxide gas stream, with external heat being provided by the combustion of a secondary fuel stream with pre-heated air. This calcined meal is injected into the conventional rotary kiln, where the hot flue gas from combustion of the primary fuel with pre-heated air is used to fuse, react and sinter the powders to form granules of cement clinker. The clinker and carbon dioxide streams are cooled by the air pre-heaters.
    • 波特兰水泥熟料的制造方法以干法捕获碳酸盐矿物,主要是石灰石煅烧所释放的二氧化碳。 该方法使用间接加热的逆流反应器预热并煅烧水泥粉以产生单独的煅烧粉和二氧化碳气流,通过辅助燃料流与预热空气的燃烧提供外部热量 。 这种煅烧过的粉料被注入到传统的回转窑中,其中来自具有预热空气的初级燃料的燃烧的热烟气被用于熔化,反应和烧结粉末以形成水泥熟料的颗粒。 熟料和二氧化碳气流被空气预热器冷却。