Burner for coal, oil or gas firing

Combustion – Separately supplied or controlled – physically related flame... – Having common flame chamber or shield means

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Details

431171, 431284, 431187, 110263, F23M 906, F23Q 900, F23C 700, F23D 100

Patent

active

048367729

ABSTRACT:
An improved burner for the combustion of coal, oil or gas places a plurality of retractable and rotatable gas elements in close proximity to the outlet end of a tubular burner nozzle of the burner which are shielded from combustion air provided around the tubular burner nozzle by a flame stabilizing ring having a plurality of openings adapted to closely receive each of the plurality of retractable and rotatable gas elements. Eddies produced by the flame stabilizing ring create a low oxygen/fuel rich flame resulting in reduced NO.sub.x formation.

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Advanced In-Furnace NO.sub.x Reduction Systems to Control Emissions-M. A. Acree & A. D. LaRue presented to the American Power Conference in Chicago, IL, on Apr. 22-24, 1985-Entire Document.
Operating Experiences of Coal Fired Utility Boilers Using Hitachi NO.sub.x Reduction Burners-T. Narita, F. Koda, T. Masai, S. Morita & S. Azuhata, 1987 Joint Symposium on STA. NO.sub.x Control-Mar. 23-26, 1987-Entire Doc.
Developmental Status of B&W's Second Generation Low NO.sub.x Burner-The XCL Burner, A. D. La Rue & M. A. Acree-1987.
Jt. Symp. on Stationary Comb. NO.sub.x Control-Mar. 23-26, 1987, New Orleans, LA-Spons., by U.S. EPA & E.P.R.I.-Entire Document.

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