Cooler and particulate separator for an off-gas stack

Patent · 01 January 1992

OSTI ID:868504

Wright, George T ^[1]

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1. 15 Cherry Hills Dr., Aiken, SC 29803

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.

• Research Organization: WESTINGHOUSE SAVANNAH RIVER CO
• DOE Contract Number: AC09-89SR18035
• Assignee: Wright; George T. (15 Cherry Hills Dr., Aiken, SC 29803)
• Patent Number(s): US 5156659
• OSTI ID: 868504
• Country of Publication: United States
• Language: English

Related Subjects

/96/110/261/
accumulation
air
air conduit
angle
attendant
compensate
components
compound
comprising
concentration
condensate
conduit
conduit leading
cool
cooler
counter
create
deposits
direction
downstream
downward
drop
entering
flow
forming
gas
holes
injecting
injecting air
injects
interior
interior surface
leading
located
located downstream
melter
melter comprising
melter plenum
near
off-gas
off-gas stack
particulate
particulate deposits
periphery
pervents
plenum
pressure
pressure drop
prevent
receiving
receiving water
recirculation
return
reverse
separator
set
set injecting
sets
sprayers
sprays
stack
surface
swept
tangential
vortex
vortex flow
wall
water
zones