| 摘要 |
<p>A boiler and a method of firing in a boiler, in which loosely stacked fuel (6) is charged through a charging opening (5) onto a first support (7) and is there exposed to jets (25) of ignition air that entrain hot flue gas from the furnace, directed at the surface of the fuel, the surface layer of which is ignited and partially gasified before the fuel is finally combusted on a grate (9) located lower down. To obtain improved adjustment of the combustion with reduced sintering of the ash and a reduced content of nitrogen oxide in the flue gas, it is proposed that the air from the ignition air jets (25) together with the entrained flue gas is permitted to pass through the loosely stacked fuel (6) and the first support (7) and then to flow into the furnace (1).</p> |
