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    • 1. 发明专利
    • APPARATUS FOR SUPPLYING AND RECOVERING GRANULES
    • JPH0432521A
    • 1992-02-04
    • JP13850790
    • 1990-05-30
    • KAWASAKI STEEL CODIAMOND ENG CO LTD
    • NAKAJI SHIGERUIKEDA TAKAYUKIUEDA OSAMUMATSUZAKI ISAOITO TOSHIYUKI
    • C21D9/673
    • PURPOSE:To enable automation of the work and uniformize supply and recovery of granules within the desired time and to improve quality of a cold-rolled steel plate by arranging supply-recovery part composed of a rotary hopper, supplying and recovering chutes, nozzle, etc., to a heat treatment furnace. CONSTITUTION:The granules 23 are sent into a supplying hopper 11 through an insert tube 13 with a supplying and pressurized sending device, and while measure-controlling shifting quantity in turning and advance-retreating parts 7, 4, position of the nozzle 21 is matched with supplying position to furnace hearth 22. After that, a supporting frame 9 is ascended/descended with a lift driving part 10 to adjust gap between the nozzle 21 and the furnace hearth 22. Successively, while turning the nozzle 21 by rotating lower part from the rotary hopper 14 with a rotary driving part 15, the granules are qualified with a fixed quantity qualifying feeder 12 and uniformly supplied onto the furnace hearth 22 through a supplying tube 16, hopper 14, supplying chute 18 and nozzle 21. The granules already used, are sucked and recovered into separating device from the nozzle 21 through the recovering chute 19, joint 20 and recovering tube 17 by opening a change-over valve built in the rotary joint 20 and stopping the feeder 12.