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    • 4. 发明授权
    • Cement manufacture
    • 水泥制造
    • US4059396A
    • 1977-11-22
    • US618819
    • 1975-10-02
    • Tage Halfdan Dano
    • Tage Halfdan Dano
    • C04B7/47C04B7/51F27D15/02F26B19/00
    • C04B7/47
    • A method is disclosed for manufacturing white cement wherein cement clinker is burnt in a kiln and prior to discharge from the kiln the clinker is contacted with a reducing agent such as fuel oil. The method further comprises discharging the hot cement clinker from the discharge portion of the kiln to a movable clinker supporting means such as a rotatable conveyor and quenching the cement clinker simultaneously with the discharge thereof from the kiln by subjecting the clinker to a spray of cooling water in a manner such that a major portion of the quenching water evaporates substantially immediately following the quenching. The method further comprises transferring the cement clinker to a clinker transporting means such as a linear conveyor and subjecting the clinker to further cooling while evaporating substantially all of the remaining quenching water, and creating and maintaining a sub-atmospheric pressure at the location of discharge of the hot cement clinker from the kiln to prevent evaporating water from entering the kiln. The invention also pertains to plant for practicing the inventive method.
    • 公开了一种用于制造白水泥的方法,其中水泥熟料在窑中燃烧,并且在从窑排出之前,熟料与诸如燃料油的还原剂接触。 该方法还包括将热水泥熟料从窑的排放部分排出到诸如可旋转的输送机的可移动的熟料支撑装置中,并通过使熟料经过冷却水的喷雾同时从水泥窑排出,同时淬火水泥熟料 以使淬火水的大部分在淬火之后基本上立即蒸发的方式。 该方法还包括将水泥熟料转移到诸如线性输送机的熟料输送装置中,并使熟料进一步冷却,同时蒸发基本上所有剩余的骤冷水,并在排放的位置产生和维持低于大气压 来自窑炉的热水泥熟料,以防止蒸发水进入窑炉。 本发明还涉及用于实施本发明方法的植物。