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    • 6. 发明授权
    • Method and facility for separating and recovering steel pipe and covering resin in resin-covered steel pipe
    • 在树脂覆盖钢管中分离回收钢管和覆盖树脂的方法和设备
    • US06979385B2
    • 2005-12-27
    • US10495922
    • 2002-11-05
    • Tatsuo MatsumotoHaruo Fujita
    • Tatsuo MatsumotoHaruo Fujita
    • B08B9/02B09B5/00B29B17/02B29B17/04B32B35/00
    • B29B17/021B09B5/00B29B17/02B29B17/0412B29B2017/044B29B2017/0448B29C2035/0811B29K2105/20B29L2023/00B29L2023/22Y02W30/521Y02W30/622Y02W30/625Y10S156/935Y10T156/11Y10T156/1126Y10T156/1153Y10T156/19Y10T156/1972
    • There are provided a method and a facility for separating and recovering a steel pipe and a covering resin in a resin-covered steel pipe, which do not produce cuttings of the steel pipe and which make it possible to continuously operate the facility. The method comprises the steps of using a cut line forming means installed forwardly of the position that a high frequency induction coil passes, so as to form a cut line extending from the surface of the resin-covered steel pipe toward the steel pipe, deep enough to reach the surface of the steel pipe from the surface of the covering resin, throughout the length of the resin-covered steel pipe, circumferentially dividing the covering resin into at least two parts, heating the steel pipe by high frequency induction heating, in the position of a separating device disposed at a suitable position immediately after the passage of the position of the high frequency induction coil, to the extent the boundary between the covering resin and the steel pipe assumes the state for the release of the covering resin from the steel pipe, and cutting each covering resin into at least two parts along the cut line and toward the outside of the steel pipe by the separating device while releasing and separating it from the steel pipe.
    • 提供了一种在不产生钢管切屑并且可以连续操作该设备的树脂覆盖钢管中分离和回收钢管和覆盖树脂的方法和设备。 该方法包括以下步骤:使用安装在高频感应线圈通过的位置的前方的切割线形成装置,以形成从树脂覆盖的钢管的表面向钢管延伸的切割线,足够深 从覆盖树脂的表面到达钢管表面,在树脂覆盖的钢管的整个长度上,将覆盖树脂周向分割成至少两部分,通过高频感应加热来加热钢管 位于刚刚通过高频感应线圈的位置之后的合适位置的分离装置的位置到覆盖树脂和钢管之间的边界呈现从钢板释放覆盖树脂的状态 并且通过分离装置将每个覆盖树脂沿着切割线切割成至少两个部分并朝向钢管的外部,同时释放和分离 从钢管评级。