It is the desiccant equipment to fill high alumina gel having mositure and chemical attraction into the 

                             tank in order to supply the pressure air of saturation come from air compressor under high dry status,

                             A typical regenerative dryer consists of two towers charged with activated alumina desiccant. 

                             One tower dries air, while the desiccant in the other toweed with low pressure and low pressure 

                             and low humidity air.

                             Often ,heat is added to assist the regeneration process. In this design, a small amount of the dried 

                             air ( from the drying tower ) is expanded to near atmospheric pressure in the regenerating tower.
                             The dry air becomes super dry on expansion, and readily absorbs the moisture from the saturated 

                             desiccant bed

                              Like this, the machinery to reiterate the dehumidification and regeneration  under allowed time and

                              then, supply the dried air is called as desiccant air dryer.

                              Among them,  In order to regenerate the desiccant, 

                              An electronic heater and a boosting blower were installed,
                              A special type of dryer that dries without any purge of compressed air.
                              It is called "Bower heater zero purge loss type desiccant air dryer".

                                  -   Very economical because there is no loss of compressed air.