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Title: Fluidized-bed calciner with combustion nozzle and shroud

Abstract

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.

Inventors:
 [1];  [2];  [1]
  1. Idaho Falls, ID
  2. Shelley, ID
Publication Date:
Research Org.:
Aerojet Nuclear Co., Idaho Falls, Idaho (USA). Idaho National Engineering Lab.
OSTI Identifier:
862803
Patent Number(s):
US 4017253
Assignee:
United States of America as represented by United States Energy (Washington, DC)
DOE Contract Number:  
AT(10-1)-1375
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
fluidized-bed; calciner; combustion; nozzle; shroud; employed; burner; fluidized; bed; coaxially; enclosed; tubular; extends; length; open-ended; portion; provides; antechamber; mixture; atomized; fuel; oxygen-containing; gas; arrangement; improved; efficiency; excludes; particles; high-velocity; high-temperature; portions; flame; reduce; particle; attrition; combustion efficiency; bed particles; reduce particle; arrangement provides; provides improved; oxygen-containing gas; fluidized bed; containing gas; shroud portion; tubular shroud; improved combustion; fluidized-bed calciner; /432/110/239/422/431/

Citation Formats

Wielang, Joseph A, Palmer, William B, and Kerr, William B. Fluidized-bed calciner with combustion nozzle and shroud. United States: N. p., 1977. Web.
Wielang, Joseph A, Palmer, William B, & Kerr, William B. Fluidized-bed calciner with combustion nozzle and shroud. United States.
Wielang, Joseph A, Palmer, William B, and Kerr, William B. Sat . "Fluidized-bed calciner with combustion nozzle and shroud". United States. https://www.osti.gov/servlets/purl/862803.
@article{osti_862803,
title = {Fluidized-bed calciner with combustion nozzle and shroud},
author = {Wielang, Joseph A and Palmer, William B and Kerr, William B},
abstractNote = {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.},
doi = {},
url = {https://www.osti.gov/biblio/862803}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1977},
month = {1}
}

Patent:

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