Fluidized-bed calciner with combustion nozzle and shroud

Patent · Sat Jan 01 00:00:00 EST 1977

OSTI ID:862803

Wielang, Joseph A.; Palmer, William B.; Kerr, William B.

A nozzle employed as a burner within a fluidized bed is coaxially enclosed within a tubular shroud that extends beyond the nozzle length into the fluidized bed. The open-ended shroud portion beyond the nozzle end provides an antechamber for mixture and combustion of atomized fuel with an oxygen-containing gas. The arrangement provides improved combustion efficiency and excludes bed particles from the high-velocity, high-temperature portions of the flame to reduce particle attrition.

• Research Organization: Aerojet Nuclear Co., Idaho Falls, Idaho (USA). Idaho National Engineering Lab.
• Sponsoring Organization: US Energy Research and Development Administration (ERDA)
• DOE Contract Number: AT(10-1)-1375
• Assignee: United States of America as represented by United States Energy (Washington, DC)
• Patent Number(s): 4,017,253
• Application Number: 05/613779
• OSTI ID: 862803
• Resource Relation: Patent File Date: 1975 Sep 16
• Country of Publication: United States
• Language: English

Related Subjects

fluidized-bed
calciner
combustion
shroud
nozzle
burner
coaxially
tubular
open-ended
portion
antechamber
atomized
fuel
oxygen-containing
gas
arrangement
provides
improved
efficiency
particles
high-velocity
high-temperature
portions
flame
reduce
particle
attrition
combustion efficiency
bed particles
reduce particle
arrangement provides
provides improved
oxygen-containing gas
shroud portion
tubular shroud
improved combustion
fluidized-bed calciner
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