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AssigneeNorth American Refractories Co.
InventorsRobert H. Phillips, Robert D. Eckert, Alan L. Fisch, Glen H. Mead, III
Estimating the term…
A ladle of the type having a bottom wall, sidewall and opposite trunnions extending outwardly from an upper portion of the sidewall is provided with a refractory lining by positioning a mandrel inside of the ladle in spaced relationship to the walls thereof to define a castable space. The mandrel is attached to an elongated horizontal support which extends over the top of the ladle. The elongated horizontal support is supported by the ladle trunnions and is also locked thereto against upward displacement. At least a portion of the mandrel which cooperates with the ladle sidewall is expandable and collapsible toward and away from the ladle sidewall. After the castable space is filled with castable refractory material, such material is allowed to solidify, and the elongated horizontal support is released from the trunnions so that the support and mandrel attached thereto can be lifted upwardly.
Apparatus for casting a refractory lining in at least part of a ladle having a bottom wall and a sidewall and opposite trunnions extending outwardly from an upper portion of the sidewall, said apparatus including elongated horizontal support means positionable across the top of the ladle and having trunnion support means extending downwardly therefrom for engaging the ladle trunnions and supporting said horizontal support means thereon, locking means for locking said trunnion support means to the trunnions against vertical displacement relative thereto, and mandrel means attached to said horizontal support means for location inside the ladle in spaced relationship to at least one wall thereof to define a castable space into which castable refractory is transferable for forming a lining on the one wall.
Apparatus for casting a refractory lining in a ladle having a bottom wall, a sidewall and opposite trunnions extending outwardly from an upper portion of the ladle sidewall, said apparatus including elongated horizontal support means positionable across the top of the ladle, mandrel means attached to said horizontal support means and positionable within the ladle in spaced relationship to at least one of the ladle walls to define a castable space when said horizontal support means is positioned across the top of the ladle, and locking means for locking said horizontal support means to the ladle trunnions against upward displacement for holding said mandrel means within the ladle.
A method of casting refractory linings in ladles having a bottom wall, a sidewall and opposite trunnions extending outwardly from an upper portion of the sidewall comprising the steps of:
Dependencies are inferred from the claim text.