MELT FILTRATION | MACHINERY
types of bearings protected to prevent large-sized particles penetrating into their lubrica- tion gaps, all of which allows tolerance for particles up to 4 mm in size, depending on the pump rating. “That means there is no need for a protective filter upstream of the pump, as a study at a European customer demon- strated over a period of several months,” the company says. Service life of the pump doubled, even in post-consum- er recycling where the highest contamination levels are found. In February, German company BB Engineering reported that it had delivered a melt filter for recycling PET flakes to polyester manufacturer Indo- rama Polyester Industries (Thailand). It said Indo- rama will be using the type NSF38 filter in its recently assembled recycling system for producing rPET granulate from flake PET bottle waste. The granulate is subsequently processed into fibres in
spinning systems. The NSF38 filter enables continual filtering: the system switches from one filter to the other during the process without the need for conversion shut- downs. It has a filter surface area of approximately 16m2
on each
side, with throughputs of between 1,000 and 1,900 kg/h. The filter inserts each contain
19 pleated filter candles. The filter medium comprises a sintered metal fibre nonwoven with a
filtration fineness of 25 µm, sufficient to ensure that the melt remains free of contaminants and gels. BB Engineering is a joint
venture between Oerlikon Barmag
and Brückner Group, focusing on the develop- ment, engineering, design and manufacturing of extrusion and filtration technologies as well as complete spinning lines. Nordson BKG says that, since the introduction of its first backflush melt filter over 30 years ago, it
Right: Rendering of BB Engineer- ing’s NSF38
We’ve Got
You Covered SPECIALTY ADDITIVES FOR THE POLYMER INDUSTRY
ENGINEERED TO IMPROVE PROCESS AND PRODUCT PERFORMANCE THROUGHOUT AN EXTENSIVE ARRAY OF INDUSTRIES.
> Activators > Dispersants > Homogenizers > Lubricants > Metal Stearates
> Montan Ester Wax Alternatives
> Odor Control
> Peptizers > Plasticizers > Polyethylene Waxes > Processing Agents > Silane Coupling Agents > Slip Agents (Amides) > Tackifiers > Viscosity Modifiers
STRUKTOL COMPANY OF AMERICA, LLC | Stow, Ohio 330.928.5188 |
CustomerService@struktol.com
| USA
CustomerService@struktol.com |
www.struktol.com |
www.struktol.com
IMAGE: BB ENGINEERING
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