To provide a solid fuel-fired combustion burner, in which a high-temperature oxygen remaining region formed in an outer periphery of flame is suppressed and a final production amount of NOx can be reduced.
A solid fuel-fired combustion burner 20 for feeding powdery solid fuel and air into a furnace includes a fuel burner 21 and secondary air feeding ports 30. A fuel burner 20 further includes: a coal primary port 22 which has inner held flame and feeds the solid fuel and primary air into the furnace; and a coal secondary port 23, which does not hold flame and which is disposed to surround a periphery of the coal primary port 22 and feeds a part of secondary air. The secondary air feeding ports 30 is disposed respectively above and below and/or at the right and left of the fuel burner 20 and includes a flow rate regulating means. The inner flame holding is performed by one or more split members 24 arranged in a flow passage front part of the coal primary port 22.
FUJIMURA KOTARO
DOMOTO KAZUHIRO
ICHINOSE TOSHIMITSU
ABE NAOFUMI
KASAI JUN
| JPH10332110A | 1998-12-15 | |||
| JP2009204256A | 2009-09-10 | |||
| JP2003279006A | 2003-10-02 | |||
| JPH10318504A | 1998-12-04 | |||
| JP2005273973A | 2005-10-06 | |||
| JP2002228107A | 2002-08-14 | |||
| JPH08200616A | 1996-08-06 | |||
| JPS6057104A | 1985-04-02 |
| WO2002012791A1 | 2002-02-14 |
Kunio Ueda
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