| 摘要 |
Disclosed is a system for drying a stream of fluid droplets (5). The system comprises a fluid reservoir (see 2, figure 1), a spraying device (3) and at least one energy source (6) for at least partially drying the droplets. The energy source is a radiation source. The spraying device comprises at least one outflow opening (4), for projecting a stream of fluid droplets from the fluid reservoir in a predetermined trajectory. The at least one energy source is positioned with respect to a reflective energy focussing element (20), such as an elliptical mirror, so as to focus the energy from the at least one energy source in at least one focal point, for providing energy focused substantially on the droplet trajectory. Radiation drying may advantageously be more efficient and faster than air drying techniques, and the wavelength of the radiation source may be, for example, matched to the absorption characteristics of the material, improving the efficiency of energy transfer. Furthermore, more radiation may be applied to the droplets via radiation than via heat drying without burning the droplets. |
