skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Low NO.sub.x burner system

Abstract

A low NO.sub.x burner system for a furnace having spaced apart front and rear walls, comprises a double row of cell burners on each of the front and rear walls. Each cell burner is either of the inverted type with a secondary air nozzle spaced vertically below a coal nozzle, or the non-inverted type where the coal nozzle is below the secondary air port. The inverted and non-inverted cells alternate or are provided in other specified patterns at least in the lower row of cells. A small percentage of the total air can be also provided through the hopper or hopper throat forming the bottom of the furnace, or through the boiler hopper side walls. A shallow angle impeller design also advances the purpose of the invention which is to reduce CO and H.sub.2 S admissions while maintaining low NO.sub.x generation.

Inventors:
 [1];  [2];  [3];  [4];  [5]
  1. (North Canton, OH)
  2. (Plain Twp., Stark County, OH)
  3. (Summit, OH)
  4. (Knox Twp., Columbiana County, OH)
  5. (Canton, OH)
Issue Date:
Research Org.:
Babcock & Wilcox Company (New Orleans, LA)
OSTI Identifier:
868757
Patent Number(s):
5205226
Assignee:
Babcock & Wilcox Company (New Orleans, LA) NETL
DOE Contract Number:  
FC22-91PC90545
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
burner; furnace; spaced; apart; front; rear; walls; comprises; double; row; cell; burners; inverted; type; secondary; air; nozzle; vertically; below; coal; non-inverted; cells; alternate; provided; specified; patterns; percentage; total; hopper; throat; forming; bottom; boiler; shallow; angle; impeller; design; advances; purpose; reduce; admissions; maintaining; generation; spaced apart; secondary air; rear wall; vertically below; spaced vertically; rear walls; total air; cell burner; double row; /110/431/

Citation Formats

Kitto, Jr., John B., Kleisley, Roger J., LaRue, Albert D., Latham, Chris E., and Laursen, Thomas A. Low NO.sub.x burner system. United States: N. p., 1993. Web.
Kitto, Jr., John B., Kleisley, Roger J., LaRue, Albert D., Latham, Chris E., & Laursen, Thomas A. Low NO.sub.x burner system. United States.
Kitto, Jr., John B., Kleisley, Roger J., LaRue, Albert D., Latham, Chris E., and Laursen, Thomas A. Fri . "Low NO.sub.x burner system". United States. https://www.osti.gov/servlets/purl/868757.
@article{osti_868757,
title = {Low NO.sub.x burner system},
author = {Kitto, Jr., John B. and Kleisley, Roger J. and LaRue, Albert D. and Latham, Chris E. and Laursen, Thomas A.},
abstractNote = {A low NO.sub.x burner system for a furnace having spaced apart front and rear walls, comprises a double row of cell burners on each of the front and rear walls. Each cell burner is either of the inverted type with a secondary air nozzle spaced vertically below a coal nozzle, or the non-inverted type where the coal nozzle is below the secondary air port. The inverted and non-inverted cells alternate or are provided in other specified patterns at least in the lower row of cells. A small percentage of the total air can be also provided through the hopper or hopper throat forming the bottom of the furnace, or through the boiler hopper side walls. A shallow angle impeller design also advances the purpose of the invention which is to reduce CO and H.sub.2 S admissions while maintaining low NO.sub.x generation.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1993},
month = {1}
}

Patent:

Save / Share: