| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a boiler device capable of preventing passing-through of an unburned gas without impairing combustion performance of solid fuel such as coal in a furnace, and to achieve reduction of CO concentration and NOx concentration in a combustion exhaust gas not only at a furnace central portion but also at a furnace side wall. <P>SOLUTION: This boiler device is provided with a burner 6 of one or more stages burning the solid fuel with air quantity less than theoretical air ratio, further an AAP 7 of one or more stages jetting combustion air into the furnace, is disposed at an upstream side of the burner 6, the burner 6 and the AAP 7 are respectively disposed on a pair of wall surfaces opposite to each other, of the furnace, and an air dividing member 21 horizontally dividing the direction of air supplied from the AAP 7 into the furnace, and dividing the air jetting direction into folding-fan shapes, is disposed in the AAP 7. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
