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LOW NOx NOZZLE TIP FOR A PULVERIZED SOLID FUEL FURNACE

  • US 20090277364A1
  • Filed: 02/26/2009
  • Published: 11/12/2009
  • Est. Priority Date: 03/07/2008
  • Status: Active Grant
First Claim
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1. A nozzle tip [100] for a pulverized solid fuel pipe nozzle [200] of a pulverized solid fuel-fired furnace that reduces NOX emissions, the nozzle tip [100] comprising:

  • a primary air shroud [120] having an inlet [102] and an outlet [104], wherein the inlet [102] receives a fuel flow;

    a first splitter plate [160] disposed within the primary air shroud [120], the first splitter plate [160] and the primary air shroud [120] defining a duct [260] for receiving a first portion of the fuel flow; and

    a flow splitter [180] disposed within the primary air shroud [120], the flow splitter [180] having a pair of diverging surfaces which separates a second portion of the fuel flow [230] into a first split flow and a diverging second split flow, wherein the first split flow and the first portion of the fuel flow [230] combine at the outlet [104] of the primary air shroud [120] to provide a first outlet fuel jet which exits the outlet [104] of the primary air shroud [120] separate from the second split flow.

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