| 摘要 |
<p>Disclosed is a combustion burner (1) provided with a fuel nozzle (2) for injecting fuel gas obtained by combining solid fuel and primary air, secondary air nozzles (3, 4) for injecting secondary air from the outer periphery of the fuel nozzle (2), and a flame stabilizer (5) disposed at the opening of the fuel nozzle (2). In the combustion burner (1), the flame stabilizer (5) has a split shape which widens in the flow direction of the fuel gas. Furthermore, in the section viewed in the direction that the flame stabilizer (5) widens, among the sections of the fuel nozzle (2) including the center axis, the maximum distance (h) between the center axis of the fuel nozzle (2) and the widened end of the flame stabilizer, and the inner diameter (r) of the opening (21) of the fuel nozzle (2) satisfy the relationship of h/ (r/2)<0.6.</p> |
