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US 4,460,330 AGranted
Fluidized-bed combustion system
AssigneeIshikawajima-Harima Jukogyo Kabushiki Kaisha
InventorsMinoru Asai, Kiyoshi Aoki, Osamu Takeuchi
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AssigneeIshikawajima-Harima Jukogyo Kabushiki Kaisha
InventorsMinoru Asai, Kiyoshi Aoki, Osamu Takeuchi
Estimating the term…
A fluidized-bed combustion system for a boiler, a heating furnace for heating steels or the like, in which a plurality of gas distribution pipes are disposed at the bottom of the combustion chamber. The lower end of each gas distribution pipe is communicated with an air supply line with an air flow rate control valve and a fuel supply line with a fuel flow rate control valve and the air and fuel admitted into the gas distribution pipe are mixed within the same and the air and fuel mixture is injected or sprayed into the fluidized bed through injection ports of the gas distribution pipe which are positioned adjacent to the bottom of the fluidized bed, whereby the complete combustion within the fluidized bed can be ensured and the combustion can be controlled over a wide range and optimized depending upon a load.
A fluidized-bed combustion system comprising a plurality of gas distribution pipes disposed at a bottom of a furnace shell or combustion chamber and extending through said bottom of said furnace shell or combustion chamber into a fluidized-bed formed in said furnace shell or combustion chamber, each of said gas distribution pipes including a plurality of injection ports located adjacent to the bottom of said fluidized bed, each of said gas distribution pipes being communicated at its lower end extended out of said furnaces shell or combustion chamber with an individual air supply line with an air flow control valve and an individual fuel supply line with a fuel flow control valve, whereby aid and fuel supplied into said gas distribution pipes are mixed therein and injected or sprayed through said injection ports into the fluidized bed.
A fluidized-bed combustion system comprising:
Dependencies are inferred from the claim text.