会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 8. 发明专利
    • CH620759A5
    • 1980-12-15
    • CH714877
    • 1977-06-10
    • KUBOTA LTD
    • NAGASAKI KATSUMIINOUE YOSHIHIROYAMAZAKI HIROYUKIYANO AKIFUMIMOMOSE TETSUO
    • F27D3/15
    • 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.