| 摘要 |
<p>The pressure gas is supplied through two separate ducts (4, 5) by means of a hopper-forming spray device (6). The right end of the hopper comprises a spraying head having in the symmetrical plane (P) of the device at least one slot (14) for the flowing of the liquid. On either side of the slot there is provided a row of orifices (17, 18) for the passage of the pressure gas. A liquid-supply tube (32, 35) is arranged in parallel to the wide end of the hopper and has openings (33) for the direct or indirect flow of liquid into the hopper and its passage through the slot (14) without noticeable pressure.</p> |
