| 摘要 |
<p>An agglomeration chamber (18) is equipped with an inlet (5, 6, 7) for admitting powdered particles into the chamber. It further includes an inlet (12) for a gas and an inlet (8) for a liquid which is added to an atomizer (9) for atomizing the liquid to fine drops. The chamber moreover has a combined gas and product discharge (17). The agglomeration chamber accommodates a vertically positioned rotor (19) having a rotor shaft (20) which mounts a plurality of blades (21) arranged setwise. Interiorly the chamber is coated with a flexible wall (11) to which a regularly wavy movement with either standing or travelling waves is imparted in operation. The powdered particles are wetted by the fine liquid drops and are thrown against the flexible wall (11) i.a. because of the function of the rotor (20), the now sticky particles settling on said wall as a coating. The particles of the coating are pressed together in the troughs and form agglomerates, and when the troughs subsequently rise into a crest, these agglomerates are repelled. The agglomeration chamber has a very great capacity and a compact structure.</p> |
