From contaminated, moist flakes to clean, dry, dust-free, crystallised and food contact compliant flakes. This is the job of the Multi Purpose Reactor (MPR?) from EREMA. And the system takes care of this for you in an extremely reliable and energy-efficient way.
The Multi Purpose Reactor complements your existing extrusion system and ensures that your washed PET material is already food contact compliant prior to extrusion. In many countries the legal framework will continue to develop in this direction; in the EU it is already laid down in Commission* Regulation (EC) No. 282/2008. However, you can also use the MPR? as a stand-alone solution (without subsequent extrusion).
The patented MPR? is a highly efficient crystallisation dryer, as also used (in a somewhat different form) in the VACUREMA? system. Washed PET bottle flakes, ground PET flat sheet waste and virgin PET material plus mixtures of them can be used as input material.
* Commission Regulation (EC) No. 282/2008 of 27 March 2008 on recycled plastic materials and articles intended to come into contact with foods.
Feeding (1) is automatic and continuous via a vacuum sluice above the reactor. Inside the reactor (2) the material is heated by friction alone. In the case of high temperatures and high vacuum the drying process is accelerated. Additionally these conditions ensure effective decontamination and crystallisation. A short discharge screw (3) then conveys the hot material out of the reactor. The material now goes to the melt extruder (4).