Dependable drying
New product: drier featuring external solvent recovery

Vacuum processes are normally used to dry products containing solvents or water-based moisture. However, as not all products are suitable for drying in a vacuum, a new forced-air dryer with a very high solvent recovery rate has been developed for use at atmospheric pressure.
Vacuum is normally used to dry products that contain solvents, but not all products can withstand this process. To address this problem, drying specialists at Pink in Wertheim/Germany have designed a forced-air drier that can be used for external recovery of solvents. In contrast to other designs, external recovery allows you to condense, collect and dispose of solvents even if they are potentially explosive. The drying process normally takes place as follows. A loading cart, which contains the product trays, is used to load the product chamber in the drier. A separate support cart can be used to avoid contamination when the loading cart is being moved to the drier. After loading, the internal chamber is purged with inert gas until the explosive concentration falls below the ignition point. The ventilators and heating are then turned on, and the drying process starts. The gas atmosphere that now contains solvents can be fed to the external condenser in partial flow mode. The condensed vapor is collected in an exhaust device and moved to a secure container.