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    • 10. 发明授权
    • Filtering process and apparatus
    • 过滤和设备
    • US3856674A
    • 1974-12-24
    • US34441473
    • 1973-03-23
    • KALMAN P
    • KALMAN P
    • B01D29/09B01D33/044B29C47/68
    • B29C47/685B01D29/096B01D29/52B01D29/54B01D29/608B01D29/846B01D33/044B01D33/37B01D33/39B01D33/666B01D33/809B29C47/0009
    • A process and apparatus for filtering a substance flowing through a passage in which a filter is introduced through inlet and outlet ports so that a part of the filter extends across the passage, a flowable sealing substance is provided in the ports and temperature conditions are established resulting in the formation in the ports of sealing plugs of the flowable sealing substance, the filter is supported across the passage by means of a movable backing support adapted to receive substance filtering through the filter and to enable the extraction therefrom of filtered substance, and the force applied to the backing support as the result of a hydrostatic pressure differential across the filter urging the filter against the backing support is equalized by applying to the backing support a counteracting force thereby to reduce the net force tending to restrict the ease of movement of the backing support, the movement of the filter through the ports to introduce another part thereof into the passage being effected under conditions providing for maintenance of the said sealing plugs. In some embodiments the counteracting force is developed as a result of a hydrostatic pressure differential across at least one other filter supported upon the movable backing support urging said at least one other filter against the backing support, whereas in other embodiments the passage forms a chamber across which the filter extends and, for hydrostatic force equalization, the filter is arranged so as to be subject on opposed surfaces thereof to the pressure of substance to be filtered, the filter having an interior permeable to the substance to be filtered and into which filtered substance flows and from which the filtered substance is extracted. Also disclosed are forms of filters adapted for use in such a process and apparatus.
    • 一种用于过滤流过通过入口和出口过滤器的通道的物质的过程和装置,使得过滤器的一部分延伸穿过通道,在端口中设置可流动的密封物质,并且建立温度条件,导致 在可流动密封物质的密封塞端口的形成中,过滤器通过可移动的背衬支撑件跨过通道,该可移动的背衬支撑件适于通过过滤器接收物质过滤并且能够从其中提取过滤的物质, 施加到背衬支撑件上的结果是,通过将过滤器推动过滤器抵靠背衬支撑件的流体静压差的结果相等,通过将抵抗力施加到背衬支撑件上,从而减小趋于限制背衬的移动容易性的净力 支持,过滤器通过端口的移动,以将其另一部分引入到t中 他的通道在提供维护所述密封塞的条件下进行。 在一些实施例中,反作用力由于在支撑在可移动背衬支撑件上的至少一个其它过滤器上的流体静压力差异的结果而被开发,从而将所述至少一个其它过滤器推靠在背衬支撑件上,而在其它实施例中, 过滤器延伸,并且对于静水力均衡,过滤器布置成在其相对的表面上受到要过滤的物质的压力的影响,过滤器具有可被过滤物质渗透的内部,并且过滤物质 流出并从中提取过滤物质。 还公开了适用于这种工艺和装置的过滤器的形式。