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    • 4. 发明授权
    • Method and apparatus for separating and recovering fractional components
of carpet
    • 用于分离和回收地毯部分组分的方法和设备
    • US6126096A
    • 2000-10-03
    • US321689
    • 1999-05-28
    • Forrest L. RobinsonWillis R. Campbell
    • Forrest L. RobinsonWillis R. Campbell
    • B03B9/06B29B17/02B02C19/12
    • B03B9/061B29B17/02B03B2009/067B29B2017/0224B29B2017/0231B29B2017/0289B29B2017/0416B29B2017/0492B29K2023/12B29K2077/00B29K2105/12B29L2031/7322Y02W30/521Y02W30/523Y02W30/622Y02W30/625Y02W30/667
    • A process is disclosed for the separation and recovery of fractional components of used carpet. Although the disclosed process is operable with either jute-backed or vinyl-backed carpet, an alternative process is preferred for vinyl-backed carpet to permit the sequential removal of the vinyl backing with most of the fiberglass stabilizer intact. The process includes the chilling of appropriately sized carpet pieces and preferably pre-soaking the used carpet pieces before chilling, followed by the introduction of the pre-conditioned used carpet pieces into a cyclonic comminuter which reduces the carpet pieces into fractional components. The chilling step could lower the temperature of the soaked carpet pieces to or below freezing to stiffen the backing material and enhance the comminution process. Processes for the recovery of the separated fractional components include collecting the components from the respective discharges from the cyclonic comminuter, washing, and separating by carding, static charges, pressure gradients and the like. This effective process will allow for greater utilization of carpet recycling operations to prevent used carpet from being disposed in land fills.
    • 公开了用于分离和回收旧地毯的分数组分的方法。 虽然所公开的方法可以用黄麻背衬或乙烯基背衬地毯操作,但对于乙烯基背衬地毯来说,替代方法是优选的,以允许以绝大多数玻璃纤维稳定剂完整地顺序地除去乙烯基背衬。 该方法包括冷却适当尺寸的地毯片,并且优选在冷冻之前预先浸泡所使用的地毯片,然后将预处理过的地毯片引入旋风粉碎机,将地毯片材减少为分数成分。 冷却步骤可以将浸泡的地毯片的温度降低到或低于冰点,以加强背衬材料并增强粉碎过程。 用于回收分离的分数组分的方法包括从来自旋风分离器的相应排出物中收集组分,洗涤和通过梳理,静电荷,压力梯度等分离。 这种有效的过程将允许更多地利用地毯回收操作来防止使用的地毯被处理在土地填充中。