| 摘要 |
PURPOSE: To achieve a production of an apparatus which enables evenly drying of particulate material by preventing heat loss while allowing uniform temperature distribution both vertically and horizontally. CONSTITUTION: A dry air guide duct 17 has a heat insulating material inside at least a container 10. In this case, a flexible heat resisting tube is mounted inside the duct 17 or the pipe 17 is built in a double wall. The space between the double wall can be vacuumized. |
