Ultrasonic conditioning and wet scrubbing of fly ash
    2.
    发明授权
    Ultrasonic conditioning and wet scrubbing of fly ash 有权
    超声波调理和湿法擦洗粉煤灰

    公开(公告)号:US5988396A

    公开(公告)日:1999-11-23

    申请号:US135683

    申请日:1998-08-18

    Abstract: Processes for treating fly ash to enhance the fly ash as a pozzolan for portland cement mixes and to separate therefrom a substantial carbon compound and/or to increase the fineness of the fly ash include the treatment of a fly ash slurry with ultrasonic energy using ultrasonic horns immersed in a slurry of fly ash and water and imparting to said slurry such ultrasonic energy as to cause microscopic cavities to form and implode with high localized energy to break up fly ash agglomerations along cleavage lines and to break up carbon particles and matrices which have entrapped fly ash microspheres therein to release the microspheres into the slurry. A conditioner agent may be added at or during ultrasonic treatment to enhance the flotation of the carbon compound.

    Abstract translation: 用于处理飞灰以增强作为波特兰水泥的火山灰的飞灰的方法混合并将其分离出大量碳化合物和/或提高飞灰的细度,包括用超声波能量处理超声能量的飞灰浆 浸入飞灰和水的浆液中,并赋予所述浆料超声波能量,使微细腔形成并以高的局部能量冲击以沿着切割线分解飞灰团聚体并破坏已经截留的碳颗粒和基质 其中的飞灰微球将微球释放到浆料中。 在超声波处理过程中或在超声波处理期间可以加入调理剂以增强碳化合物的浮选。

    Method and apparatus for reducing carbon content in fly ash
    3.
    发明授权
    Method and apparatus for reducing carbon content in fly ash 失效
    降低粉煤灰含碳量的方法和装置

    公开(公告)号:US5513755A

    公开(公告)日:1996-05-07

    申请号:US222102

    申请日:1994-04-04

    Abstract: A method of treating fly ash which has a moisture content and which also has a high carbon particle content includes the steps of heating the fly ash to a temperature sufficient to break the bond between the fly ash and the carbon particles caused by the moisture content, applying the heated fly ash in a relatively thin layer to the surface of a belt-type conveyor and subjecting the layer of heated fly ash to the effects of an electrostatic charging zone while repeatedly mechanically rearranging the orientation of the fly ash particles in the zone for causing the carbon particles to take a charge and become attracted to an electrode so that the same may be separated from the layer. Apparatus for separating carbon particles from fly ash includes a generally horizontal conveyor, and a hopper which applies fly ash to be treated in a layer on the surface of a conductive belt. The belt carries the fly ash layer through an elongated electrostatic charging zone, and beaters beneath the belt impart a vibration to the belt for causing the fly ash layer to be in a state of agitation. The belt forms a lower electrode, while an upper electrode is spaced above the belt and the entire separation zone is environmentally enclosed to exclude ambient air and moisture from the separating zone. Collection bins are positioned along the lateral sides of the belt for capturing carbon particles discharged from the zone, while the accepts are delivered off of the end of the belt into a suitable bin.

    Abstract translation: 一种处理具有水分含量并且还具有高碳颗粒含量的飞灰的方法包括以下步骤:将飞灰加热到足以破坏由水分含量引起的飞灰和碳颗粒之间的结合的温度, 将加热的飞灰在相对薄的层中施加到带式输送机的表面上,并使加热的飞灰层受到静电充电区的影响,同时重复机械地重新布置区域中的飞灰颗粒的取向 导致碳粒子带电并被电极吸引,使得它们可以与层分离。 用于从飞灰分离碳颗粒的装置包括大致水平的输送机,以及在导电带表面上的层中施加要处理的飞灰的料斗。 皮带通过细长的静电充电区域带有飞灰层,并且皮带下方的打浆器对皮带施加振动,以使飞灰层处于搅动状态。 带形成下电极,而上电极在带上方间隔开,并且整个分离区是环境密封的,以从分离区排除环境空气和水分。 收集箱沿着带的侧面定位,用于捕获从区域排出的碳颗粒,同时接收器从带的端部被输送到合适的箱中。

    Method and apparatus for reducing carbon content in particulate mixtures
    4.
    发明授权
    Method and apparatus for reducing carbon content in particulate mixtures 失效
    用于减少颗粒混合物中碳含量的方法和装置

    公开(公告)号:US5299692A

    公开(公告)日:1994-04-05

    申请号:US12999

    申请日:1993-02-03

    Abstract: Methods and apparatus for reducing the carbon content of fly ash are disclosed. The fly ash is subjected to an inclined surface having first and second vibratory sources for respectively moving the fly ash from the elevated end of the incline to the lower end and to disaggregate and stratify a high carbon fraction from an enhanced fly ash fraction. The second vibratory source, in combination with the inclined surface, separates the lighter, high carbon fraction while the heavier enhanced fly ash fraction travels toward the lower end of the incline. An air jet and associated vacuum draft pull the high carbon fraction from the incline, leaving the enhanced fly ash portion for use, after removal from the surface, as an example, as acceptable mineral admixture for use in Portland Cement concrete.

    Abstract translation: 公开了减少飞灰含碳量的方法和装置。 飞灰经受具有第一和第二振动源的倾斜表面,用于分别将飞灰从斜坡的升高端移动到下端,并且从增强的飞灰分数分解和分层高碳分数。 第二振动源与倾斜表面组合分离较轻的高碳分数,同时较重的增强的飞灰分数向倾斜的下端行进。 空气射流和相关的真空吸力从倾斜中拉出高碳分数,留下增强的飞灰部分,在从表面去除之后,作为在波特兰水泥混凝土中使用的可接受的矿物混合物作为例子。

Patent Agency Ranking