(19)
(11) EP 2 148 138 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
20.10.2010 Bulletin 2010/42

(43) Date of publication A2:
27.01.2010 Bulletin 2010/04

(21) Application number: 09251886.9

(22) Date of filing: 27.07.2009
(51) International Patent Classification (IPC): 
F23M 5/02(2006.01)
F23D 14/26(2006.01)
 F23D 14/22(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
Designated Extension States:
AL BA RS

(30) Priority: 25.07.2008 US 220623

(71) Applicant: JOHN ZINK COMPANY, L.L.C.
Tulsa, OK 74116 (US)

(72) Inventor:
  • Bussman, Wesley R.
    Tulsa Oklahoma 74105 (US)

(74) Representative: Roberts, Mark Peter 
J.A. Kemp & Co. 14 South Square Gray's Inn
London WC1R 5JJ
London WC1R 5JJ (GB)

   


(54) Burner apparatus and methods


(57) A burner assembly for and method of combusting fuel gas in a furnace is provided. The burner assembly (10) includes a burner tile (18) having a burner throat (48) disposed therethrough. Combustion air is conducted through the burner throat into a combustion zone in the furnace. A pilot assembly (20) is used to generate a pilot flame (62) within the burner throat. Fuel gas is injected into an ignition zone (80) located outside the burner throat and ignited therein. The pilot flame (62) generated in the burner throat (48) can be used to ignite the fuel gas in the ignition zone (80). The ignited fuel gas is admixed with combustion air in the combustion zone. The burner assembly can be operated without admixing a significant amount of fuel gas with combustion air in the burner throat, which can help control the formation of undesirable nitrogen oxides (NOX).







Search report