Grain size from the hurahu supply nozzle blowing the hurahu fuel of several millimeters inside

摘要

PROBLEM TO BE SOLVED: To raise the combustion temperature by improving the combustibility at an ignition part. ;SOLUTION: A fluff combustion device in which the bluff fuel of several millimeter in grain size is blown by the fed air and burned, comprises a cyclone cylinder 32 in which the fluff fuel is blown by the fed air in the tangential direction and swirled, a fluff feed nozzle 33 which is extended from the cyclone cylinder 32 to blow the fluff fuel into a furnace, a secondary air nozzle 37 which is externally fitted to the fluff feed nozzle 33 to feed the secondary air, and an air extraction nozzle which is arranged on an axial part of the cyclone cylinder 32 and connected to an ejector 42 to suck a part of the fed air.;COPYRIGHT: (C)2000,JPO