OPERATIONAL SEQUENCE (EWT)

 
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The pellet-water mixture emerging from the pelletizing housing is guided to the water treatment- and drying system. Due to the unique design feature of the ECON system, no water bypass-piping is required within the process water cycle.

An agglomerate separation unit is installed upstream to the pellet dryer to remove pellet lumps before they enter the dryer. In the following stage the pellets flow with the residual water into the rotor section of the dryer, due to the design of the flaps utilizing centrifugal force, pellets are thrown against the screens.

While water is separated through the screens, pellets are continuously conveyed into the upper section of the dryer where they emerge through the pellet outlet for further transportation (e.g. with a conveyor fan).

With a special design of the pellet dryer (housing and dewatering screens) the cleaning process is optimised to allow a material change within only a few minutes.

The separated water is guided into the water tank and filtered by means of fine screens and then re-circulated. To control the process water temperature to a set value a cooling cycle with a heat exchanger is integrated into the system.