Classification of coating particle size
    1.
    发明授权
    Classification of coating particle size 失效
    涂层粒度分级

    公开(公告)号:US06923865B2

    公开(公告)日:2005-08-02

    申请号:US10112987

    申请日:2002-03-29

    摘要: Techniques for precisely controlling the size of particles in a coating solution delivered to a coating apparatus involve continuous classification of coating particle size using a tangential flow filter assembly. The techniques may be particularly useful in the preparation of coating dispersions for manufacture of magnetic recording media. A classification technique makes use of a tangential flow filter assembly that permits delivery of coating particles below a maximum size threshold to a coating path. The filter assembly may be disposed in a circulation path that includes one or more processing devices to reduce the size of coating particles carried by a coating solution. The filter assembly enables coating particles above the maximum size threshold to be recirculated through the circulation path and subjected to repeated processing to reduce particle size to a desired size range.

    摘要翻译: 用于精确控制输送到涂布装置的涂布溶液中的颗粒尺寸的技术涉及使用切向流过滤器组件对涂层粒度的连续分级。 这些技术在制备用于制造磁记录介质的涂料分散体中可能特别有用。 分类技术使用切向流过滤器组件,其允许将涂层颗粒递送到最大尺寸阈值至涂覆路径。 过滤器组件可以设置在包括一个或多个处理装置的循环路径中,以减小由涂布溶液承载的涂层颗粒的尺寸。 过滤器组件使得高于最大尺寸阈值的涂层颗粒通过循环路径再循环并经受重复加工以将粒度减小到期望的尺寸范围。

    Fluid processing device with annular flow paths
    2.
    发明授权
    Fluid processing device with annular flow paths 失效
    具有环形流路的流体处理装置

    公开(公告)号:US06923213B2

    公开(公告)日:2005-08-02

    申请号:US10246511

    申请日:2002-09-18

    摘要: The invention is directed to a high pressure fluid processing device for shearing particles in a fluid mixture. The fluid processing device makes use of annular flow paths. For example, a fluid mixture can be separated into two flow paths which are introduced to first and second annular flow paths on opposite sides of a flow path cylinder. The two annular flow paths flow toward one another through the cylinder, and meet one another within the cylinder. An outlet extends through the cylinder where the two annular flow paths collide allowing the fluid mixture flowing down the annular flow paths to be expelled through the gap.

    摘要翻译: 本发明涉及用于在流体混合物中剪切颗粒的高压流体处理装置。 流体处理装置利用环形流路。 例如,流体混合物可以被分离成两个流动路径,其被引入到流路筒的相对侧上的第一和第二环形流动路径。 两个环形流动路径通过气缸彼此流动,并在气缸内彼此相遇。 出口延伸穿过气缸,其中两个环形流动路径相撞,允许沿着环形流动路径流动的流体混合物通过间隙排出。

    Open-end filter assembly for fluid processing system
    3.
    发明申请
    Open-end filter assembly for fluid processing system 审中-公开
    用于流体处理系统的开放式过滤器组件

    公开(公告)号:US20080185326A1

    公开(公告)日:2008-08-07

    申请号:US11703476

    申请日:2007-02-07

    IPC分类号: B01D35/02 B01D35/22

    CPC分类号: B01D29/115 B01D29/908

    摘要: The disclosure is directed to a fluid processing system utilizing an open-end filter assembly to produce a product fluid. The system includes a fluid pump to deliver the raw fluid to a fluid processor and a heat exchanger to control the temperature of the processed fluid. The processed fluid is sent to an open-end filter assembly that allows a first portion of the processed fluid to pass through a filter element. A second portion of the processed fluid does not pass through the filter element and is directed back to the high pressure pump for further processing. In one example, the open-end filter assembly includes an outer cylinder that surrounds a cylindrical filter element to create an outer flow channel and an inner flow channel. Fluid may be introduced to the outer flow channel in a tangential orientation to enhance circular flow around the filter element.

    摘要翻译: 本公开涉及利用开放式过滤器组件来生产产品流体的流体处理系统。 该系统包括用于将原始流体输送到流体处理器的流体泵和用于控制被处理流体的温度的热交换器。 经处理的流体被送到开放式过滤器组件,其允许被处理流体的第一部分通过过滤元件。 被处理流体的第二部分不通过过滤元件并且被引导回到高压泵以进一步处理。 在一个示例中,开放式过滤器组件包括围绕圆柱形过滤器元件以形成外部流动通道和内部流动通道的外部圆筒。 可以以切向的方式将流体引入外部流动通道,以增强围绕过滤器元件的循环流动。

    Processing of a guar dispersion for particle size reduction
    4.
    发明申请
    Processing of a guar dispersion for particle size reduction 审中-公开
    用于粒度降低的瓜尔胶分散液的加工

    公开(公告)号:US20080203199A1

    公开(公告)日:2008-08-28

    申请号:US11703489

    申请日:2007-02-07

    IPC分类号: B02C19/06 B02C23/00

    摘要: A method includes processing a guar dispersion including guar particles and a fluid via an intensifier pump system and a fluid processing device that breaks up at least some of the guar particles to reduce an average particle size of the guar particles. The method may further include combining an aqueous fluid with the guar dispersion to hydrate the guar, mixing a proppant with the hydrated guar to produce a fracture fluid, and hydraulic fracturing a well using the fracture fluid. The invention may allow for reduced hydration time of guar particles in the guar dispersion.

    摘要翻译: 一种方法包括通过增强泵系统处理包括瓜尔颗粒和流体的瓜尔胶分散体,以及分解至少一些瓜尔胶颗粒以减少瓜尔胶颗粒的平均粒度的流体处理装置。 该方法还可以包括将水性流体与瓜尔胶分散体结合以水合瓜尔胶,将支撑剂与水合瓜尔胶混合以产生断裂流体,以及使用断裂流体水力压裂井。 本发明可以允许瓜尔胶分散体中瓜尔胶颗粒的水合时间减少。