| 摘要 |
<P>PROBLEM TO BE SOLVED: To reduce the adhesion of molten ash to each part in a boiler at the combustion of high slagging-property fuel (low ash melting point and high adhesive property), and to provide a stable operation of the boiler. <P>SOLUTION: A pulverized coal burner 2, which performs turning combustion in the furnace of a boiler 1 is characterized by comprising a first supply port that supplies a fuel-air mixture of pulverized coal and primary air into the furnace of a boiler 1, a second supply port disposed at a periphery adjacent to the first supply port that supplies secondary air, and a third supply port 3 disposed adjacent to the second supply port that supplies tertiary air 4 along the wall surface of a furnace inner wall 5 of the boiler 1. <P>COPYRIGHT: (C)2013,JPO&INPIT |
