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US 6,686,752 B1Granted
Wear indicator for refractory linings
AssigneeFisher-Klosterman, Inc.
InventorsWilliam L. Heumann, Frank Elvin, Russell J. Lewis, Edwin D. Tenney, Joseph A. Urban, Mark T. Noppenberger, James F. Miller
Life of this patent
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Abstract
A vessel, as for a cyclone separator, includes a continuous electrical conductor embedded in the wall of the vessel for sensing when the lining has eroded.
Claims19
A method for sensing wear in a refractory lining in a vessel, comprising the steps of:
- installing a refractory support structure along the inside wall of a vessel having a height by securing said refractory support structure to the inside wall of the vessel to form a honeycomb-shaped structure defining a plurality of open cells;
- threading an elongated conductor through said honeycomb-shaped refractory support structure so that said conductor extends through a substantial portion of the height of said vessel;
- applying a refractory to said refractory support structure so as to fill said honeycomb-shaped structure with refractory and so as to embed said refractory support structure and said conductor inside said refractory;
- and
- connecting a means for sensing continuity across said conductor such that, as said refractory erodes due to an erosive action, said conductor is exposed to said erosive action, which is sensed by said means for sensing continuity.
2 more elements
A method for sensing wear in a refractory lining in a vessel, comprising the steps of:
- installing a refractory support structure along the inside wall of a vessel having a height;
- threading an elongated conductor through said refractory support structure so that said conductor extends through a substantial portion of the height of said vessel;
- applying a refractory to said refractory support structure so as to embed said conductor inside said refractory;
- and
- connecting a means for sensing continuity across said conductor such that, as said refractory erodes due to an erosive action, said conductor is exposed to said erosive action, which is sensed by said means for sensing continuity;
- wherein said conductor is a wire, and said wire forms a first spiral path inside said wall of said vessel.
3 more elements
A cyclone separator, comprising;
- a housing wall, defining a tangential inlet section, a frustroconical section, and a height;
- said housing wall also defining an inside surface and an outside surface;
- a refractory support structure secured to said inside surface, said support structure defining openings;
- a refractory applied to said refractory support structure;
- and
- a conductor threaded through said openings in said refractory support structure such that said conductor is embedded in said refractory and follows a first spiral path along a substantial portion of the height of said housing.
3 more elements
A cyclone separator, comprising;
- a housing, defining a tangential inlet section, an inside surface, an outside surface, and a frustroconical section, wherein a first spiral path is defined from said tangential inlet section downwardly along said inside surface;
- a refractory liner along said inside surface;
- a conductor, embedded in said refractory, wherein said conductor follows a second spiral path which winds in counter direction to said first spiral path;
- and
- means for sensing electrical continuity across said conductor wherein continuity is high when said conductor is embedded in said refractory, and continuity is low when said conductor becomes exposed to erosion.
2 more elements
Dependencies are inferred from the claim text.