TECHNOLOGY | MELT FILTRATION
Right: Aceretech’s SCF series disc-type self-cleaning filtration system
for less polluted plastic waste feed - the CMF (Continuous Bolster Screen Changer) and DMF (Discontinuous Boltster Screen Changer). (See Plastics Recycling World March-April 2020). Nordson says that innovations in its BKG melt
filtration products enable recyclers of highly contaminated materials to remove contaminants effectively while minimising melt loss. Its BKG HiCon R-Type 250 melt filtration system is designed for polyolefin and styrenic materials that have high impurities content - such as aluminum content above 15%. PET recycling also requires
IMAGE: ACERETECH
effective removal of contaminants during melt filtration. Christian Schroeder, Global Product Manager for BKG melt filtration systems, says: “Nordson has enlarged the filtration area and decreased the melt loss during backflushing by developing FlexDisc, a multi-screen filter stack specifically for PET recycling. The greater filtration efficiency of the FlexDisc filter stack reduces the frequency of backflushing and the amount of backflush volume. In addition, it achieves finer filtration, higher throughputs, and longer filter service life. Due to the larger filtration area, it might be possible to use a smaller screen changer.” The FlexDisc filter stack can be retrofitted for use
with screen changers that employ piston-actuated backflush technology, such as Nordson’s BKG HiCon V-Type 3G screen changer. This system has four screen cavities, and each screen is automatically
cleaned by means of backflushing while production throughput continues through the other three. Replacing standard screens with the new filter stack in the screen cavities provides a much larger filtration area than with conventional round screens, the increase depend- ing on the size of the cavities. Each filter stack consists of multiple FlexDisc cassettes, with two screen packs in each cassette. Aceretech, based in China, has developed the SCF series
disc-type self-cleaning filtration system. The technology can handle and remove up to 5% contaminants in the melt flow including paper, wood, aluminium, unmelted plastic and rubber. The system consists of a hardened steel screen plate, rotating unit, hydraulic section, contaminates removing blades and discharging screw. A large filtering area has up to 2.32 million micro-drilled holes, with filtering accuracy of 120μm. It is an easy operation to replace the disc screen in 30 minutes, says the company.
CLICK ON THE LINKS FOR MORE INFORMATION: �
www.fimic.it �
www.gneuss.com �
https://maag.com/ettlinger �
www.erema.com �
www.britas.de �
www.nordson.com �
www.aceretech.com
PLANT-BASED AND FOOD-GRADE
Polymer Additives Safe Enough To Eat The Einar®
series of additives for masterbatches is based on food-grade plant oils and produced in CO2-neutral factories.
Looking to push the boundaries of your solution or find a better, more sustainable alternative to your current additive? We’ll help optimise your solution as our additives match or surpass the performance of conventional additives.
EINAR®
• Anti-stats • Anti-fogs
ADDITIVES ARE CUSTOM-DESIGNED: • Mould release
• Pigment dispersing aids
• Ageing modifiers
• Slip additives
• EPS coating additives
POLYMER APPLICATION LAB Our scientific staff and product specialists are ready to assist you in developing and testing new polymer applications
See how in this video:
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36 |
Page 37 |
Page 38 |
Page 39 |
Page 40 |
Page 41 |
Page 42 |
Page 43 |
Page 44 |
Page 45 |
Page 46 |
Page 47 |
Page 48 |
Page 49 |
Page 50 |
Page 51 |
Page 52
