Method of removing unburned carbon from coal ash
    10.
    发明授权
    Method of removing unburned carbon from coal ash 失效
    从煤灰中去除未燃碳的方法

    公开(公告)号:US08051985B2

    公开(公告)日:2011-11-08

    申请号:US12448139

    申请日:2006-12-11

    IPC分类号: B03B7/00

    摘要: A method comprising; a step in which unburned carbon contained in coal ash is mechanically separated with a classifier; a step in which the coal ash from which part of the unburned carbon has been removed with the classifier is pulverized or disaggregated with a pulverizer; a step in which water is added to the coal ash pulverized or disaggregated with the pulverizer to obtain a slurry; a step in which a scavenger is added to the slurried coal ash; a step in which a shear force is applied to the slurry containing the scavenger to cause the scavenger to selectively adhere to the unburned carbon contained in the coal ash; a step in which a foaming agent is added to the slurry in which the scavenger has adhered to the unburned carbon; and a step in which the unburned carbon is floated on the slurry containing the foaming agent together with bubbles and is separated.

    摘要翻译: 一种方法,包括: 将煤灰中所含的未燃碳与分级器机械分离的步骤; 使用分选机将未燃碳部分从其中除去的煤灰用粉碎机粉碎或分解的步骤; 向用粉碎机粉碎或分解的煤灰中加入水以获得浆料的步骤; 清除剂添加到浆状煤灰中的步骤; 对包含清除剂的浆料施加剪切力以使清除剂选择性地粘附到煤灰中所含的未燃烧碳的步骤; 将清除剂附着于未燃碳的浆料中添加发泡剂的工序; 以及将未燃烧碳与气泡一起漂浮在含有发泡剂的浆料上并分离的步骤。