| 摘要 |
<p>The lance (1) of a burner comprises a body (2) that defines a first duct (3) with first nozzles (4) for injecting a liquid fuel (5) and a second duct (6) with second nozzles (7) for injecting a gaseous fuel (8). Outlets (10) of the first nozzles (4) are apart from outlets (11) of the second nozzles (7). The body (2) comprises a third duct (15) with third and fourth nozzles (16, 17) for injecting air (18). The third nozzles (16) surround an axis (19) of the first nozzles (4) and the fourth nozzles (17) surround an axis (20) of the second nozzles (7).</p> |
