| 摘要 |
<p>A drying device for a rotary dragee-making kettle with an air permeable headpiece on a pipe having air supply and air exhaust pipes coaxially arranged and connected to the headpiece. The headpiece has a form of a ship floating in the dragee-making material with its hull constituting an air supply zone and its deck forming an air exhaust zone or may variously be shaped with air supply and exhaust air zones.</p> |
