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US 3,947,001 AGranted
Combustion system
AssigneeDravo Corporation
InventorGuy P. Leighton
Life of this patent
Estimating the term…
Abstract
This invention relates to the heat induration of formed bodies of ore such as green iron ore pellets on a travelling grate and more particularly to an improved, simplified combustion chamber construction.
Claims9
In a pelletizing apparatus of the travelling grate type for heat indurating compacted ore bodies, comprising a drying zone, a firing zone and a cooling zone, an improved combustion means comprising:
- at least one vertically extending chamber located adjacent the firing zone and to one side of the travelling grate, said chamber communicating proximate its lower end with the firing zone, fuel injection means vertically oriented in the upper end of said chamber and means for introducing recuperated air from the cooling zone into the upper end of said chamber.
Dependencies are inferred from the claim text.