PETpla.net Insider 10 / 2019

MATERIALS / RECYCLING PET planet Insider Vol. 20 No. 10/19 www.petpla.net 23 PLUG & DRY • SCREW ON, PLUG IN AND START • ELECTRIC POWER SUPPLY ONLY • LOWEST ENERGY CONSUMPTION • NEARLY SERVICE FREE • HIGHEST AVAILABILITY • WLAN CONNECTIVITY TO YOUR MOBILE DEVICE EISBÄR TROCKENTECHNIK GMBH WUHRMÜHLE 22 / A-6840 GÖTZIS T +43 5523 55558-0 / F -50 [email protected] / WWW.EISBAER.AT MATERIAL DRIER AS ALL IN ONE UNIT FOR 50 TO 200 KG/H VISIT US AT K 2019 BOOTH 10H48 been taken in account: The flow of cooling water required is managed by an automatic system. Small particles of metal can be another source of contami- nation, typically resulting from grinding, from blades or knives. Metal separators can be installed on the material lines during the pneumatic conveying: the dilute phase during the conveying com- bines with a reliable sensor mounted on the metal separator, recognising the metal parts with a minimum waste of good plastic material. Using recycled materials means returning into the main production stream the internal scraps, non-compli- ant or rejected final products or intrinsic production scraps i.e. from production change and start-up phases. Piovan has designed a complete package con- sisting of a tilter to empty the preform octabins, conveyor belt and grinder suitable for grinding preform and bottle. From the granulator the material is con- veyed to a de-dusting unit and then it can be re-introduced into the process. In the case of low percentage even a simple proportional valve can be enough to mix virgin chips and regrind before the drying step, but market demand is going in the opposite direc- tion, for a higher and higher percentage of regrind. So it can be necessary to provide an additional step to crystal- lise the material, or a dedicated drying system with a special geometry to process flakes or dosing systems to manage the proportion between virgin PET, rPET, regrind as flakes, additive and masterbatch. www.piovangroup.com