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US 4,492,382 AGranted
Refractory fiber ladle preheater sealing rings
AssigneeJ T Thorpe Company
InventorMack A. Hounsel
Life of this patent
Estimating the term…
Abstract
Sealing rings for ladle preheaters. The rings may be either fixedly or removably mounted with the ladle preheater frame. The rings seal about the ladle rim adjacent burner and flue openings of the preheater. Refractory fiber insulation is provided for insulating the space between the rim of the ladle and the preheater to prevent hot gas escaping. The refractory fiber is arranged into trapezoidal units which are easily installed and replaced.
Claims23
An apparatus for sealing the rim of a ladle as it is positioned adjacent a ladle preheater, comprising:
- (a) a plurality of refractory fiber ring insulation units, each of said units comprising:
- (1) a plurality of adjacent layers of refractory ceramic fiber insulating material;
- (2) said layers having an inner surface portion adjacent the preheater;
- (3) said layers further having an outer surface portion adapted to be contacted by the rim of the ladle during preheating of the ladle;
- (4) said layers further having intermediate portions extending between said inner and outer surface portions;
- (b) means conforming to the shape of the rim of the ladle for mounting said plurality of refractory fiber insulation units adjacent the preheater;
- (c) said layers being mounted on said means for mounting in planes extending radially outwardly from a central portion of the ladle.
4 more elements
An apparatus insulating a ladle preheater as it is preheating ladles, comprising:
- (a) an inner section retainer member mounted to a frame support of the preheater for enclosing the frame support adjacent a burner inlet and an exhaust outlet for the preheater;
- (b) a plurality of burner and exhaust refractory insulation units mounted on said frame support within the interior of said retainer member;
- (c) a plurality of trapezoidal refractory fiber ring insulation units for sealing with the ladle rim and insulating the space between the ladle rim and the preheater;
- and
- (d) means conforming to the shape of the rim of the ladle for mounting said plurality of trapezoidal refractory fiber insulation units adjacent the preheater.
2 more elements
Dependencies are inferred from the claim text.