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1. 发明授权

US4160662A Method for the removal of scum 失效
标题翻译：去除浮渣的方法
公开(公告)号：US4160662A
公开(公告)日：1979-07-10
申请号：US804530
申请日：1977-06-08
申请人： Katsumi Nagasaki , Yoshihiro Inoue , Hiroyuki Yamazaki , Akifumi Yano , Tetsuo Momose
发明人： Katsumi Nagasaki , Yoshihiro Inoue , Hiroyuki Yamazaki , Akifumi Yano , Tetsuo Momose
IPC分类号： B22D43/00 , B22D37/00 , F24F7/00 , F27D3/15 , C21B3/04
CPC分类号： F27D3/1572
摘要： A method of removing slag or like scum from the surface of molten metal by suction. A tubular gaseous stream directed toward the surface of scum is formed, with its interior space communicating with a suction source such as an ejector or vacuum pump. The gaseous stream hampers the inflow of external air into the suction zone surrounded by the stream. On reaching the scum surface, the gaseous stream flows inward along the scum surface and is thereafter drawn toward the suction source, so that the stream acts to blow the scum radially inwardly of the stream and thereafter raises the scum from the surface of molten metal, thus permitting efficient removal of the scum with a relatively low suction. A scum removing apparatus for practicing this method includes a suction source, a suction head communicating with the suction source, and annular nozzle means provided around the suction head for forming a tubular gaseous stream flowing toward the surface of scum.
摘要翻译：通过抽吸从熔融金属表面除去渣渣等浮渣的方法。形成指向浮渣表面的管状气流，其内部空间与诸如喷射器或真空泵的抽吸源连通。气流阻碍外部空气流入由流包围的吸入区。在到达浮渣表面时，气流沿着浮渣表面向内流动，然后被抽吸到抽吸源，使得流用于将流体径向向内吹入浮渣，然后从熔融金属表面升起浮渣，从而允许以相对低的吸力有效地去除浮渣。用于实施该方法的浮渣除去装置包括抽吸源，与抽吸源连通的抽吸头以及围绕抽吸头设置的环形喷嘴装置，用于形成朝向浮渣表面流动的管状气流。

2. 发明授权

US4077615A Suction heads for the removal of scum 失效
标题翻译：吸头用于去除浮渣
公开(公告)号：US4077615A
公开(公告)日：1978-03-07
申请号：US802656
申请日：1977-06-02
申请人： Katsumi Nagasaki , Yoshihiro Inoue , Hiroyuki Yamazaki , Akifumi Yano , Tetsuo Momose
发明人： Katsumi Nagasaki , Yoshihiro Inoue , Hiroyuki Yamazaki , Akifumi Yano , Tetsuo Momose
IPC分类号： F27D3/15 , C21C7/00
CPC分类号： F27D3/1572
摘要： A suction head for apparatus for removing slag or scum from the surface of molten metal or the like includes a suction pipe having a scum inlet at one end and communicating at the other end with a suction source by way of a conduit, a scum separator, etc. The suction head further includes a water cooling jacket provided around the suction pipe at least close to the scum inlet, and a water injector for injecting the water in the jacket into the suction pipe at a position close to the scum inlet. The water injection comprises a first nozzle for forcing out the water toward the axis of the suction pipe to cause the water to impinge against the sucked scum and to thereby rapidly solidify the scum on cooling, and a second nozzle for injecting the water into the suction pipe along the inner peripheral surface thereof to prevent the adhesion of the scum to the inner surface of the suction pipe. When desired, a water flow channel from the jacket to the first and second nozzles is provided with a shutter for closing the channel in an emergency to prevent the water from falling onto the molten metal.
摘要翻译：用于从熔融金属等表面去除渣渣或浮渣的设备的吸头包括一个吸入管，其一端具有浮渣入口，另一端通过导管与抽吸源连通，浮渣分离器，抽吸头还包括设置在至少靠近浮渣入口的吸入管周围的水冷却套，以及用于将护套中的水注入靠近浮渣入口的位置的吸入管中的水喷射器。注水包括用于迫使水朝向抽吸管的轴线的第一喷嘴，以使水撞击吸入的浮渣，从而在冷却时快速固化浮渣，以及用于将水注入吸力的第二喷嘴沿其内周面形成管，以防止浮渣与吸入管的内表面的粘附。当需要时，从护套到第一和第二喷嘴的水流通道设置有用于在紧急情况下关闭通道的闸门，以防止水落入熔融金属。

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