John Zink Company, LLC

Horst M Glomm

Robert D Reed

John S Zink

Dieter Fischer

Klaus E Sawatzki

Klaus E Sawatski

A forced draft, radiant wall, fuel burner, comprises a burner constructed with a central circular pipe for the conduction of pressurized combustion air, a second larger diameter pipe coaxial with the air pipe, with pressurized gas supplied to the closed annular space between the two pipes. The inner pipe extends forwardly beyond the end of the outer pipe. Fuel orifices are drilled in the forward end of the annular space, so that the gas flow will be parallel to the axis of the pipes. A second series of gas orifices are drilled through the outer wall of the second tube so that the gas glow is radial along the front of the burner tile. A plurality of air orifices are drilled radially in the forward end of the air pipe, so that the air flow is radial and directed perpendicularly against the principal longitudinal gas flow. The air tube spreads conically outwardly at its forward end. There are a plurality of longitudinal slots, for radial flow of air outwardly against a cylindrical wall which is part of a circular plate over the forward end of the air pipe. The flow of air from the slots deflected by the cylindrical wall, flows generally in a reverse direction against the flow of the gas from the end orifices. The two flows of air providing turbulent and complete mixing with the gas. The burning gas and flame then moves radially outwardly in a circular sheet along the front of the tile, to heat the tile to incandescence, so as to radiate heat to the heat receptive surfaces of the boiler.

Forced draft radiant wall fuel burner

A multi-fuel gas burner using preheated forced draft air, comprising a cylindrical inner burner tube, supported by the wall of a furnace, and inserted into an opening in said wall, and including means to inject through the upstream end combustion air preheated to a selected temperature, and compressed to a selected pressure. The downstream end of the inner burner tube closed, and a plurality of longitudinal slots, circumferentially spaced, in the wall of the tube at the closed end. Means to inject rich fuel gas up to 3,500 btu/cu feet under selected pressure into the inner burner tube along its axis. An outer burner tube axially surrounding said inner burner tube and forming an annular passage therebetween. Means to pass low pressure, lean, combustible gas of as low as 50 btu/cu feet down said annular passage and outwardly through a circumferential slot at the end of said outer burner tube inside the furnace. The hot combustion air and rich gas flowing through the inner burner tube and radially outwardly and rearwardly through the plurality of slots, flow against and mix with the lean gas flowing outwardly through the circumferential slot, and burn against the surface of a tile, having a central opening, through which the burner is inserted into the furnace.

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Frankfurt-am-Main, Germany

Horst M Glomm