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    • 4. 发明授权
    • Continuous filter
    • 连续过滤器
    • US5320753A
    • 1994-06-14
    • US61877
    • 1993-05-17
    • Peter T. Keillor, IIIWilliam A. Kirksey
    • Peter T. Keillor, IIIWilliam A. Kirksey
    • B01D33/04B29C47/68B01D33/044
    • B29C47/685B01D33/04B29C47/0014B29C47/0021B29C47/003
    • Filtration process and filters for use with materials such as, but not limited to, melts, utilizing a band of filter medium sealed in the filter rollers to seal the material from the outside. In one embodiment, the seal rollers reduce to a minimum the leakage of melt to the outside and make it possible to advance the filter medium through the filter continuously. In various embodiments, the filter medium can be advanced either by the takeup spool or by driving the seal rollers and the rate of movement of the filter medium through the filter can be controlled to maintain a constant pressure drop across the filter. Two component wear-resistant seals are also provided. Maintaining constant conditions through continuous advancement of the filter medium during filtration yields higher product quality and dimensional stability.
    • 过滤工艺和过滤器用于材料,例如但不限于熔化,利用密封在过滤辊中的过滤介质带将材料从外部密封。 在一个实施例中,密封辊将熔体的泄漏减少到外部,并且使得可以连续地使过滤介质前进过滤器。 在各种实施例中,过滤介质可以通过卷取阀芯或通过驱动密封辊进行,并且可以控制过滤介质通过过滤器的移动速率以保持过滤器上的恒定的压降。 还提供双组分耐磨密封件。 通过在过滤过程中不断推进过滤介质来保持恒定条件,可以获得更高的产品质量和尺寸稳定性。