| 摘要 |
An exchangeable valve plate assembly is provided for use in a slide gate valve. The exchangeable valve plate assembly includes a refractory exchangeable plate that may be replaced in the assembly without removing the slide gate valve from service. The exchangeable plate includes a concave cylindrical load surface(s) that is configured to be engaged by a cylindrical bar tip of a rocker arm to distribute load across a plate sealing surface and maintain a more constant load condition as the height of the plate stack changes. The rocker arms that load the plate also has the ability to float in its lateral relationship to the a pouring orifice centerline so as to further minimize changes in load force distribution to the exchangeable plate as the thickness of the plate stack changes.
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