Title:
PULVERIZED-COAL BURNER
Document Type and Number:
Japanese Patent JP3297209
Kind Code:
B2
Abstract:
PURPOSE: To reduce NOx and the unburnt combustibles in the emission and stabilize the ignition relating to a pulverized coal-firing burner in a power plant boiler.
CONSTITUTION: A burner has an ejection hole 3 for secondary air for combustion in the middle and an ejection hole 2 for a mixture of pulverized coal and primary air for conveyance peripherally inside the burner. The flow rate of the secondary air is set at 40m/s to 60m/s. Between the flow of secondary air and that of the mixture of pulverized coal and primary air for conveyance, a spacer 5 is provided so as to retard their mutual diffusion.
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Inventors:
Akiyasu Okamoto
Application Number:
JP17415394A
Publication Date:
July 02, 2002
Filing Date:
July 26, 1994
Export Citation:
Assignee:
MITSUBISHI HEAVY INDUSTRIES,LTD.
International Classes:
F23D1/00; (IPC1-7): F23D1/00
Domestic Patent References:
| JP59122805A | ||||
| JP60126508A |
Attorney, Agent or Firm:
Arata Ishikawa