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US 2015/0176840 A1Published application
Burner
AssigneeIHI Corporation
InventorsMasato Tamura, Ryunosuke Itokazu
Life of this patent
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AssigneeIHI Corporation
InventorsMasato Tamura, Ryunosuke Itokazu
Estimating the term…
A burner comprises a nozzle main body (7) which is installed along a central axis of a throat (4) provided on a furnace wall (3) and comprises an inner nozzle (11) in which an auxiliary combustion air (24) flows and an outer nozzle (9) which is provided on an outer side and concentrically with the inner nozzle and in which a pulverized coal mixed flow (18) obtained by mixing a carrying medium with a pulverized coal flow, a wind box (5) for accommodating the nozzle main body, a secondary air regulator (8) accommodated in the wind box and provided at a tip portion of the nozzle main body, an auxiliary combustion air intake pipe (23) for introducing a combustion air as an auxiliary combustion air (22) into the inner nozzle from the wind box, a pulverized coal flow supply pipe (16) for introducing a pulverized coal mixed flow into the outer nozzle, and an oxygen-containing gas supply pipe (17) for supplying an oxygen-containing gas (19) to the pulverized coal mixed flow and raising the oxygen concentration in the pulverized coal mixed flow.
A burner comprising, a nozzle main body which is installed along a central axis of a throat provided on a furnace wall and comprises an inner nozzle in which an auxiliary combustion air flows and an outer nozzle which is provided on an outer side and concentrically with said inner nozzle and in which a pulverized coal mixed flow obtained by mixing a carrying medium with a pulverized coal flow, a wind box for accommodating said nozzle main body, a secondary air regulator accommodated in said wind box and provided at a tip portion of said nozzle main body, an auxiliary combustion air intake pipe for introducing a combustion air as an auxiliary combustion air into said inner nozzle from said wind box, a pulverized coal flow supply pipe for introducing a pulverized coal mixed flow into said outer nozzle, and an oxygen-containing gas supply pipe for supplying an oxygen-containing gas to said pulverized coal mixed flow and raising the oxygen concentration in said pulverized coal mixed flow.
Dependencies are inferred from the claim text.