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:
-
- (North Canton, OH)
- Plain Twp., Stark County, OH
- Summit, OH
- Knox Twp., Columbiana County, OH
- 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)
- Patent Classifications (CPCs):
-
F - MECHANICAL ENGINEERING F23 - COMBUSTION APPARATUS F23C - METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN {A CARRIER GAS OR} AIR
F - MECHANICAL ENGINEERING F23 - COMBUSTION APPARATUS F23D - BURNERS
- 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}
}