Process for Producing Granular Solid Matter from Coal Ash as Raw Material and Apparatus Therefor
    1.
    发明申请
    Process for Producing Granular Solid Matter from Coal Ash as Raw Material and Apparatus Therefor 失效
    以煤灰为原料生产颗粒状固体的方法及设备

    公开(公告)号:US20100108788A1

    公开(公告)日:2010-05-06

    申请号:US12447235

    申请日:2007-10-25

    IPC分类号: B02C23/12 B02C23/10 B28C9/00

    摘要: A method of estimating the hydration reactivity of coal ash with high precision and determining the amount of milling water for obtaining a milling product in funicular form at the stage of milling; and a molding method being free from the problem of adhesion to a pressurization board at the stage of molding after the milling. When any collected coal ash exhibits a corrected basicity ((CaO+Fe2O3+MgO)/SiO2 (weight ratio)) of 0.1 or higher and a reactivity index (corrected basicity/(R2O/Al2O3) (weight ratio)) of 10 or higher, the coal ash as a raw ash is transferred to raw ash silo (2). Otherwise, the coal ash is transferred to waste ash silo (3). The raw ash within the raw ash silo (2) is poured in mill (8), and lime and gypsum are added and further milling water is charged thereto and milled. The amount of milling water is regulated so that with respect to agitator power per weight of material milled by the mill, the ratio of (average of power during 30 to 40 sec after completion of water charging)/(power at idling) ranges from 3 to 4, and so that with respect to agitator power per weight of material milled during 30 to 90 sec after completion of water charging, the ratio of (width of power fluctuation)/(average of power) ranges from 0.1 to 0.3.

    摘要翻译: 一种以高精度估算煤灰水合反应性的方法,并确定研磨阶段用于获得缆车形式的研磨产品的研磨水量; 以及在研磨后的成型阶段没有粘附到加压板的问题的成型方法。 当所收集的煤灰显示为0.1或更高的校正碱度((CaO + Fe 2 O 3 + MgO)/ SiO 2(重量比))和反应性指数(校正碱度/(R 2 O / Al 2 O 3)(重量比))为10或更高时 将煤灰作为原料灰分转移到原料灰仓(2)。 否则,煤灰转移到废灰仓(3)。 将原料灰仓(2)内的原料灰倒入研磨机(8)中,加入石灰和石膏,再向其中加入研磨水并研磨。 调节研磨水的量,使得相对于由研磨机研磨的材料重量的搅拌器功率,(充水完成后30〜40秒内的功率平均值)/(怠速功率)的范围为3 〜4,并且,相对于在充水结束后30〜90秒钟内研磨的材料的重量的搅拌器功率,(功率波动宽度)/(平均功率)的比例为0.1〜0.3。

    Process for producing granular solid matter from coal ash as raw material and apparatus therefor
    2.
    发明授权
    Process for producing granular solid matter from coal ash as raw material and apparatus therefor 失效
    以煤灰为原料生产颗粒状固体物质的方法及装置

    公开(公告)号:US08286900B2

    公开(公告)日:2012-10-16

    申请号:US12447235

    申请日:2007-10-25

    IPC分类号: B02C19/00 B02C21/00

    摘要: A method of estimating the hydration reactivity of coal ash with high precision and determining the amount of milling water for obtaining a milling product in funicular form at the stage of milling; and a molding method being free from the problem of adhesion to a pressurization board at the stage of molding after the milling. When any collected coal ash exhibits a corrected basicity ((CaO+Fe2O3+MgO)/SiO2 (weight ratio)) of 0.1 or higher and a reactivity index (corrected basicity/(R2O/Al2O3) (weight ratio)) of 10 or higher, the coal ash as a raw ash is transferred to raw ash silo (2). Otherwise, the coal ash is transferred to waste ash silo (3). The raw ash within the raw ash silo (2) is poured in mill (8), and lime and gypsum are added and further milling water is charged thereto and milled. The amount of milling water is regulated so that with respect to agitator power per weight of material milled by the mill, the ratio of (average of power during 30 to 40 sec after completion of water charging)/(power at idling) ranges from 3 to 4, and so that with respect to agitator power per weight of material milled during 30 to 90 sec after completion of water charging, the ratio of (width of power fluctuation)/(average of power) ranges from 0.1 to 0.3.

    摘要翻译: 一种以高精度估算煤灰水合反应性的方法,并确定研磨阶段用于获得缆车形式的研磨产品的研磨水量; 以及在研磨后的成型阶段没有粘附到加压板的问题的成型方法。 当所收集的煤灰显示为0.1或更高的校正碱度((CaO + Fe 2 O 3 + MgO)/ SiO 2(重量比))和反应性指数(校正碱度/(R 2 O / Al 2 O 3)(重量比))为10或更高时 将煤灰作为原料灰分转移到原料灰仓(2)。 否则,煤灰转移到废灰仓(3)。 将原料灰仓(2)内的原料灰倒入研磨机(8)中,加入石灰和石膏,再向其中加入研磨水并研磨。 调节研磨水的量,使得相对于由研磨机研磨的材料重量的搅拌器功率,(充水完成后30〜40秒内的功率平均值)/(怠速功率)的范围为3 〜4,并且,相对于在充水结束后30〜90秒钟内研磨的材料的重量的搅拌器功率,(功率波动宽度)/(平均功率)的比例为0.1〜0.3。