Closure plate for hot blast slide valves
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United States of America Patent
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-
Oct 6, 1981
Grant Date -
N/A
app pub date -
Nov 9, 1979
filing date -
Nov 9, 1978
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A closure plate for hot blast slide valves of the type having a hollow ring of box-like cross section cooled by running water to whose inner circumference a body is attached by welding, which is formed by parallel plates and is likewise cooled by running water. The thickness of the body in axial direction is smaller than the axial length of the hollow ring, and the outer surfaces are coated to about the height of the front faces of the ring with refractory concrete, the coating being tied to these outer surfaces by anchoring means. The closure plate is characterized by the following features: (a) the anchoring means are attached to the outer surfaces of the plate body and are V-shaped and extend into the refractory coating with their free flanks for at least 2/3 and at the most 3/4 of the coating thickness; (b) the anchoring means are arranged in regular distances in rows and columns extending normally to each other, the extending planes being alternately parallel and transverse to the direction of the rows and columns; (c) the distance between the centers of the anchoring means corresponds to once or twice the thickness of the refractory coating layer.
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