THROTTLING MOLTEN METAL TEEMING VALVE

摘要

The specification of the present application discloses a sliding gate valve having independent means for throttling a stream of metal during the teeming operation. The structure comprises a sliding gate valve frame at the lower portion of a teeming vessel and a top plate positioned beneath the vessel having an orifice in open communication with the teeming opening in the bottom of the vessel. The structure also includes a sliding gate having a teeming opening positioned beneath the top plate and means for holding the sliding gate in fluid tight relationship with the top plate. Means are provided for moving the sliding gate into and out of the teeming position, and means in addition to and independent of the means for moving the sliding gate into and out of the teeming position for misaligning of the sliding gate from its full flow position. By providing these two independent positioning means it is much simpler to achieve a constant flow rate during ceeming.