| 摘要 |
<p>A boiler for burning fuel oil or a fuel composed of a concentrated coal-water slurry has a circular air register concentric with fuel supply means (8,9,13) and larger diameter cylinders arranged to define a triple annuli (21,22,23) therebetween adjacent to a frusto-conical burner port (15). The circular air register has circumferentially overlapping vanes each with one radially offset overlapping end, the vanes being mounted on pivot pins (19).</p> |
