| 摘要 |
PROBLEM TO BE SOLVED: To realize, in a combustion burner, appropriate flow of fuel gas in which solid fuel and air are mixed.SOLUTION: A combustion burner includes a fuel nozzle 51 capable of injecting fuel gas in which fine coal and primary air are mixed, a secondary air nozzle 52 capable of injecting secondary air from the outside of the fuel nozzle 51, a flame holder 54 provided in an axially central side in the fuel nozzle 51, and a straightening member 101 provided between an inner wall face of the fuel nozzle 51 and the flame holder 54. |
