| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a solid-fuel-fired burner enabling an exhausted final amount of generated NOx from an additional air input part to be reduced by controlling a high temperature oxygen remaining region formed along the outer circumference of flame. <P>SOLUTION: The solid-fuel-fired burner 20 used as a burner portion of a solid-fuel-fired boiler, the solid-fuel-fired burner 20 inputting powdery solid fuel and air into a furnace, includes: a pulverized coal burner 21 which inputs pulverized coal as a powdery fuel and primary air into the furnace; and a secondary air inputting port 30 through which secondary air is blown from the exterior of the pulverized coal burner 21. A split member 24 with a cross shape formed by crossing members in two or more directions for stabilizing internal flame is disposed at front portion of a flow passage of the pulverized coal burner 21, wherein a width dimension of each in a different direction of the members of the split member 24 differs. <P>COPYRIGHT: (C)2013,JPO&INPIT |
