To provide a vacuum dryer, capable of effectively preventing distortion of a lid part in a chamber without increasing the weight of the lid part.
The vacuum dryer comprises a base part 13 constituting a bottom surface of a chamber 10, the lid part 11 constituting a lid member of the chamber 10, the base part having a rectangular shape in a plane view; a seal member 12 disposed between the base part 13 and the lid part 11; a flat plate-like reinforcing member 41 disposed on the upper surface of the lid part 11; and a plurality of screws fastening the lid part 11 to the reinforcing member 41. The reinforcing member 41 has one short side matched to one long side of the lid part and the other short side matched to the other long side of the lid part 11.
WO/2019/199710 | FREEZE DRYING PROCESS AND EQUIPMENT HEALTH MONITORING |
WO/2002/025191 | METHOD AND SYSTEM FOR DRYING MATERIAL |
WO/2021/146605 | PROCESSING OF LOW RANK COAL |