Low NO.sub.x burner system

Title: Low NO.sub.x burner system

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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:

Kitto, Jr., John B. ^[1]; Kleisley, Roger J ^[2]; LaRue, Albert D ^[3]; Latham, Chris E ^[4]; Laursen, Thomas A ^[5]

(North Canton, OH)
Plain Twp., Stark County, OH
Summit, OH
Knox Twp., Columbiana County, OH
Canton, OH

Issue Date:: 1993-01-01

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

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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
F23C2900/05081 - Disposition of burners relative to each other creating specific heat patterns
F23C5/00 - Disposition of burners with respect to the combustion chamber or to one another

F - MECHANICAL ENGINEERING F23 - COMBUSTION APPARATUS F23D - BURNERS
F23D1/02 - Vortex burners, e.g. for cyclone-type combustion apparatus

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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.

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                    Kitto, Jr., John B., Kleisley, Roger J, LaRue, Albert D, Latham, Chris E, & Laursen, Thomas A. Low NO.sub.x burner system.  United States.

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                    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.

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@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}

}

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