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  Non-centric oxy-fuel burner for glass melting systemsUSPTO Application #: 20070281264Title: Non-centric oxy-fuel burner for glass melting systems Abstract: A burner and method of combustion for a furnace or a forehearth includes a gas delivery member and a fuel delivery member having a portion thereof disposed at an interior of the gas delivery member and offset or angled from a longitudinal axis of the gas delivery member to provide gaseous oxidant and fuel flows for combustion. (end of abstract) Agent: The Boc Group, Inc. - Murray Hill, NJ, US Inventor: Neil Simpson USPTO Applicaton #: 20070281264 - Class: 431181 (USPTO) The Patent Description & Claims data below is from USPTO Patent Application 20070281264. Brief Patent Description - Full Patent Description - Patent Application Claims
BACKGROUND OF THE INVENTION [0001]The invention relates to burners for furnaces and furnace systems. [0002]Conical concentric oxy-fuel burners have been used in the crown of glass melting furnaces to melt batch in the furnaces. Once a pre-positioned hole is drilled in the furnace crown and a burner block is installed in the hole, there is limited if no ability to change the direction of the turbulent flame being emitted from the burner. If a different direction is required for the flame, it is required to drill and install an alternate (different) burner hole in order to re-position the burner and hence the flame. Existing furnace designs, with their steelwork and crown expansion joints, frequently limit the location that burners can be installed in the furnace and as a result optimum flame coverage is not always achieved or blocks are angled excessively so that the burner flame is less effective. Concentric oxy-fuel burners produce conical flames perpendicular to the melt which in turn produce circular flame patterns at the melt. The resulting flame pattern produced by a plurality of spaced apart burners limits the total flame coverage at the surface of the melt. Concentric burners combust uniformly in the combustion space above the melt. This uniformity and intensity of combustion can provide excessive combustion in the free space between the crown and the melt resulting in less than optimum heat transfer and higher oxides of nitrogen (NOx) at the melt surface. The aforementioned limitations and disadvantages occur also with horizontal burners and burners used in forehearths of furnaces. SUMMARY OF THE INVENTION [0003]A burner such as an oxy-fuel burner is provided for a furnace or a forehearth, and which includes a gas delivery member, and a fuel delivery member having a portion disposed at an interior of the gas delivery member and offset from a longitudinal axis of the gas delivery member. [0004]There is also provided a method for combusting product in a furnace or a forehearth, comprising providing a flow of gaseous oxidant along a first flow path to the furnace or the forehearth; providing a flow of gaseous fuel along a second flow path offset from the first flow path to the furnace or the forehearth; exposing the first flow path to the second flowpath; and combusting the gaseous oxidant and the gaseous fuel to provide a non-circular burn area. [0005]There is also provided a burner, whereby one or more of the gas and fuel delivery members may be rotated along their respective longitudinal axes to control an angle of discharge of the burner flame and the resulting non-circular burn area. BRIEF DESCRIPTION OF THE DRAWINGS [0006]For a more complete understanding of the present invention, reference may be had to the following Figures, taken in conjunction with the detailed description, of which: [0007]FIG. 1A discloses a partial cross-sectional plan view of a burner of the present invention for use with a furnace. [0008]FIG. 1B discloses a cross-section of the burner taken along line 1B-1B of FIG. 1A. [0009]FIG. 2A discloses a diagram of another embodiment of a burner of the present invention. [0010]FIG. 2B discloses a cross-section diagram taken along line 2B-2B of FIG. 2A. [0011]FIG. 3A discloses a diagram of another embodiment of a burner of the present invention. [0012]FIG. 3B discloses a cross-section diagram taken along line 3B-3B of FIG. 3A. [0013]FIG. 4 discloses a flame footprint provided by the burners of the present invention. [0014]FIG. 5A discloses a diagram of another embodiment of a burner of the present invention. [0015]FIG. 5B discloses a cross-section diagram taken along line 5B-5B of FIG. 5A. [0016]FIG. 6A discloses a partial cross-section of another embodiment of the burner of the present invention for use with a furnace. [0017]FIG. 6B discloses a cross-section of the burner taken along line 6B-6B of FIG. 6A. [0018]FIG. 7A discloses a partial cross-section of still another embodiment of the burner of the present invention for use with a furnace. [0019]FIG. 7B discloses a cross-section of the burner taken along line 7B-7B of FIG. 7A. [0020]FIG. 8A discloses a partial cross-section of another embodiment of the burner of the present invention for use with a furnace. [0021]FIG. 8B discloses a cross-section of the burner taken along line 8B-8B of FIG. 8A. Continue reading... Full patent description for Non-centric oxy-fuel burner for glass melting systems Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Non-centric oxy-fuel burner for glass melting systems patent application. ###  How KEYWORD MONITOR works... a FREE service from FreshPatents1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored. 3. Each week you receive an email with patent applications related to your keywords. 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