| 摘要 |
An discharging device for molten metal between an upper ladle ( 1 ) and a tundish ( 3 ) comprising a slide valve nozzle fixed to the base of the ladle, comprising an upper fixed nozzle ( 42 ) and a mobile one below ( 43 ), inserted into an opening in the base of said slide valve nozzle with the lower end protruding from it, and a ring shaped blade ( 46 ) fixed to the base of the slide valve nozzle around said aperture. The tundish ( 3 ) comprises a cylindrical jacket ( 22 ) placed with a vertical axis and fitted at its end with a sand joint ( 24 ) for sealing gas into which the ring shaped blade is sunk ( 46 ). The slide valve nozzle can be fixed to the base of the ladle by mountings ( 48, 49 ) fitted with eyelets into which pivots ( 50 ) are inserted.
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