Title:
METHOD FOR FEEDING AIR-FUEL MIXTURE IN PULVERIZED COAL BURNER AND SQUARE NOZZLE
Document Type and Number:
Japanese Patent JP2002267109
Kind Code:
A
Abstract:
To provide a pulverized coal burner 3 capable of feeding air-fuel mixture of pulverized coal fuel having different fuel-air ratios, capable of suppressing an NOx generating amount, and air through one square nozzle 6.
A density separator 8 is provided in the square nozzle 6. A relation between height H1 of the density separator 8 and height H of the square nozzle 6 is set to H1=0.5×H, and a relation between width W1 of the density separator 8 at an end face 13 and width W of the square nozzle 6 is set to W1=0.7×W. The pulverized coal burner 3 is capable of feeding fuel-air mixture of pulverized coal fuel and air, having different fuel-air ratio, capable of suppressing an NOx generating amount by one square nozzle 6.
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Inventors:
TANIGAWA HIROSHI
OKAMOTO AKIYASU
FUJIMURA KOUTAROU
TAKEUCHI KAZUHIRO
KAWASHIMA HACHIRO
OKAMOTO AKIYASU
FUJIMURA KOUTAROU
TAKEUCHI KAZUHIRO
KAWASHIMA HACHIRO
Application Number:
JP2001068009A
Publication Date:
September 18, 2002
Filing Date:
March 12, 2001
Export Citation:
Assignee:
MITSUBISHI HEAVY IND LTD
International Classes:
F23C99/00; F23D1/00; (IPC1-7): F23C11/00; F23D1/00
Attorney, Agent or Firm:
Toshiro Mitsuishi (2 outside)