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Title: Cooler and particulate separator for an off-gas stack

Abstract

An off-gas stack for a melter comprising an air conduit leading to two sets of holes, one set injecting air into the off-gas stack near the melter plenum and the second set injecting air downstream of the first set. The first set injects air at a compound angle, having both downward and tangential components, to create a reverse vortex flow, counter to the direction of flow of gas through the stack and also along the periphery of the stack interior surface. Air from the first set of holes pervents recirculation zones from forming and the attendant accumulation of particulate deposits on the wall of the stack and will also return to the plenum any particulate swept up in the gas entering the stack. The second set of holes injects air in the same direction as the gas in the stack to compensate for the pressure drop and to prevent the concentration of condensate in the stack. A set of sprayers, receiving water from a second conduit, is located downstream of the second set of holes and sprays water into the gas to further cool it.

Inventors:
 [1]
  1. (15 Cherry Hills Dr., Aiken, SC 29803)
Issue Date:
Research Org.:
WESTINGHOUSE SAVANNAH RIVER CO
OSTI Identifier:
868504
Patent Number(s):
5156659
Assignee:
Wright; George T. (15 Cherry Hills Dr., Aiken, SC 29803) SRS
DOE Contract Number:  
AC09-89SR18035
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
cooler; particulate; separator; off-gas; stack; melter; comprising; air; conduit; leading; sets; holes; set; injecting; near; plenum; downstream; injects; compound; angle; downward; tangential; components; create; reverse; vortex; flow; counter; direction; gas; periphery; interior; surface; pervents; recirculation; zones; forming; attendant; accumulation; deposits; wall; return; swept; entering; compensate; pressure; drop; prevent; concentration; condensate; sprayers; receiving; water; located; sprays; cool; located downstream; pressure drop; interior surface; vortex flow; off-gas stack; injecting air; conduit leading; set injecting; receiving water; particulate deposits; melter comprising; melter plenum; air conduit; /96/110/261/

Citation Formats

Wright, George T. Cooler and particulate separator for an off-gas stack. United States: N. p., 1992. Web.
Wright, George T. Cooler and particulate separator for an off-gas stack. United States.
Wright, George T. Wed . "Cooler and particulate separator for an off-gas stack". United States. https://www.osti.gov/servlets/purl/868504.
@article{osti_868504,
title = {Cooler and particulate separator for an off-gas stack},
author = {Wright, George T.},
abstractNote = {An off-gas stack for a melter comprising an air conduit leading to two sets of holes, one set injecting air into the off-gas stack near the melter plenum and the second set injecting air downstream of the first set. The first set injects air at a compound angle, having both downward and tangential components, to create a reverse vortex flow, counter to the direction of flow of gas through the stack and also along the periphery of the stack interior surface. Air from the first set of holes pervents recirculation zones from forming and the attendant accumulation of particulate deposits on the wall of the stack and will also return to the plenum any particulate swept up in the gas entering the stack. The second set of holes injects air in the same direction as the gas in the stack to compensate for the pressure drop and to prevent the concentration of condensate in the stack. A set of sprayers, receiving water from a second conduit, is located downstream of the second set of holes and sprays water into the gas to further cool it.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1992},
month = {1}
}

Patent:

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