OPERATIONAL SEQUENCE (EUP)

 
Bildvergrößerung
The underwater pelletizing system consists of diverter valve, pelletizing unit, process water treatment system and electrical control unit. The housing of the pelletizing system is closed for starting. The start-up process occurs fully automatically. Once a constant melt flow has been reached, the melt is guided to the pelletizing head (die plate) the design of which defines the throughput rate.

The emerging melt strands are pelletized under water. Depending on the throughput and the form of the granules, the number of knives will vary. The knife pressing pressure can be controlled electronically. The pellets are conveyed with the process water to the water separation, where they are dried and output for further transportation. The process water is in closed circulation and purified by means of fine filters.

Due to the special design of the die plate (thermal insulation) there is no by-pass required for the process water circulation. This simplifies the start-up procedure. The special design of the die plate ensures optimal thermal insulation, thus preventing any freezing of the pelletizing head, which reduces the consumption of heat energy by up to 90 %.

On request we will be happy to arrange a visit to one of our customers, additionally a test run with your material in ECON’s technical centre is also possible.