EREMA Filter Systems for Thermoplastics - Cee-Environmental
EREMA Filter Systems for Thermoplastics - Cee-Environmental
EREMA Filter Systems for Thermoplastics - Cee-Environmental
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QUALITYQM-SYSTEM NACH DIN ENSYSTEMCERTFIEDISO 9001ISOTO9001<strong>EREMA</strong> <strong>Filter</strong> <strong>Systems</strong><strong>for</strong> <strong>Thermoplastics</strong>www.erema.atWe know how.
Dear Customer,As your reliable partner <strong>for</strong> filtration solutions we offer a wide production program ofadvanced filter systems, comprehensive advice and prompt worldwide service support.The Technical Centre at our headquarters in Linz/Austria gives you the opportunity toconduct filtration tests with our products under realistic production conditions.Different melt filter systems <strong>for</strong> almost any specific requirementCriteria such as throughput capacity range and type of application, besides individual process requirements, arecritical factors in choosing the most cost-efficient melt filter solution. Our wide range of filters and the various sizesavailable mean that you will nearly always find a custom <strong>EREMA</strong> filter system to meet your specific needs.<strong>EREMA</strong> melt filters meet the very highest quality standards and are characterised by their heavy-duty construction,high degree of automation and high-per<strong>for</strong>mance availability.Our products range from simple, manual lever-operated pivot disc safety filters via one-, two-, four- or six-pistonpartial area backflush screen changers to high end laser filters <strong>for</strong> heavily-contaminated polymers.<strong>EREMA</strong> pivot disc safety filterManual discontinuous <strong>EREMA</strong> filter <strong>for</strong> filtration of clean polymer melts("safety filtration")Available sizes:CL 104: Active filter area 85cm 2CL 120: Active filter area 113cm 2<strong>EREMA</strong> Partial Area Backflush Screen Changer (RTF-Series)(basic layout)Fully automatic self cleaning filter with 2, 4, 8 or 12 parallel arranged, simultaneously active filtering screens.<strong>EREMA</strong> partial area backflushmelt filter SW 2/134 RTF<strong>EREMA</strong> partial area backflushmelt filter SW 4/104 RTF
The advantages<strong>EREMA</strong> RTF piston screen changers aredifferent from widely-available conventionalsystems due to their completely automaticpartial area backflushing system. Thanksto their unique design (pressure balanceddouble screen design per piston) <strong>EREMA</strong>partial area backflush systems functionextremely well with a wide range of filteringrequirements.The characteristics of <strong>EREMA</strong> partial areabackflush systems can be summarised asfollows:●●●●●Minimise influence on downstreamprocesses thanks to lowest pressurefluctuations during backflushing andscreen changing (RTF 4, 8 and 12).Efficient, reliable backflushingmechanism with very short backflushchannels and without the use of sensitivevalves, <strong>for</strong> max. screen service lifeand max. reliability of operation. Thisdramatically increases screen servicelife, supplies max. reliability of operationand keeps backflushing material lossesto a minimum.Backflushing is triggered completelyautomatically, reducing operatorrequirement.Optimal cleaning efficiency:<strong>EREMA</strong> partial surface backflushing technologyinvolves flushing a comparativelysmall area of the screen surface (onlyone screen at a time!) in relation to thetotal active screen area, by passing acentral stream of clean melt throughfrom the back of the screen. High velocityis possible at the screen due to thesmall surface area of screen to beflushed at a time, resulting in optimumcleaning efficiency. It is also possibleto adjust the backflushing stream, usinga replaceable throttle nozzle on theclean side of the filter (preventing riskof clogging with contamination!), adaptingthe system to individual requirements.The large total screen area thatremains active even during backflushingand screen changing and the correctmatch of throttle nozzle enable thissystem to be implemented even withssensitive downstream processes.Fully automatic, operator-independentair purging (venting) control afterscreen change. The optional, via PLCand touch screen controlled air ventingprocess of melt channels after a screenchange avoids air bubbles enteringinto the production process.ProductionScreen cleaning(backflushing) during operation<strong>EREMA</strong> SW 2/RTF:Semi-continuous partial area backflush filter with 2 screens <strong>for</strong> lightlycontaminatedpolymers(Basic Layout)ProductionScreen cleaning(backflushing) during operation<strong>EREMA</strong> SW 4/RTF:Fully-continuous partial area backflush filter with 4 screens <strong>for</strong> mediumcontaminated polymers and low pressure differences (Basic Layout)ProductionScreen cleaning(backflushing) during operation<strong>EREMA</strong> SW 8/RTF:Fully-continuous partial area backflush filter with 8 screens <strong>for</strong> heavilycontaminatedpolymers and/or ultra-low pressure differences(Basic Layout)ProductionScreen cleaning(backflushing) during operation<strong>EREMA</strong> SW 12/RTF:Fully-continuous partial area backflush filter with 12 screens <strong>for</strong> heavilycontaminatedpolymers and/or semi-constant pressure operation(Basic Layout)
Active total filter screen surface <strong>EREMA</strong> RTF backflush screen changer-series134 mm 170 mm 250 mm170 cm 2Screen diameter (mm)82 mm104 mm<strong>Filter</strong> system with .../ total active screen area in cm 21 carrier piston (2 screens)SW 2/104 RTFSW 2/134 RTFSW 2/170 RTF282 cm 2 454 cm 2SW 2/250 RTF982 cm 22 carrier pistons (4 screens)SW 4/82 RTF211 cm 2SW 4/104 RTF340 cm 2SW 4/134 RTFSW 4/170 RTF564 cm 2907 cm 2SW 4/250 RTF1963 cm 24 carrier pistons (8 screens)SW 8/104 RTF680 cm 2SW 8/134 RTF1128 cm 2SW 8/170 RTF1814 cm 2SW 8/250 RTF3926 cm 212 carrier pistons (12 screens)SW 12/170 RTF2721 cm 2<strong>EREMA</strong> Laser filterConstant pressure, self-cleaning, high-capacity filter <strong>for</strong> extremely heavily contaminated polymer melts (see separatebrochure). Separation of up to approx. 2% of contamination from polymer melt is possible.Melt inletScreen discsScraperScraper discAir coolingImpurity dischargeImpurity dischargeDischarge screwsScraper movementClean melt outlet(Basic Layout)
Your advantagesFields of application <strong>for</strong> and individual advantages resulting from the use of<strong>EREMA</strong> partial area backflush filter systems:Recycling● Increases screen service life, reducing screen costs and backflush melt loss costs with intelligent, optimised partial areabackflushing systems● Enables processing of higher levels of contaminants due to large active screen surface● Manages peaks in contamination● Provides higher level of automation due to automatic backflushing function, reducing labour cost.● Improves homogenisation of the melt● Eliminates fine particles and strand breaks● Very high contamination filtering capacity available with <strong>EREMA</strong> Laser <strong>Filter</strong>s (see separate brochure)Fibre production● Ultra-fine filtration capability at moderate pressure levels● Effective filtering of gels (depending on application)● Dramatic increase in service life <strong>for</strong> spin pack units (application as prefilter in front of candle filters)● Enables processing of higher levels of regenerateBlown film and flat film production● Effective filtering of gel-type particles thanks to low velocities and low shearing at screens.● Lowest possible pressure fluctuations due to partial area backflushing and adjustable backflush stream● Enables higher levels of recycled material to be processed to increase cost-effectiveness● Fully automatic filtration and filter cleaning without interrupting productionPipe production● Reduces costs by allowing higher levels of recycled material to be used● Maintains tight tolerances <strong>for</strong> final product even during backflushing● Does not interrupt production thanks to fully automatic filtrationRepellet / Masterbatch production● Hot die face pelletising: high grain uni<strong>for</strong>mity even during backflushing (cleaning) of screens.● Strand pelletising: strands do not break off during backflushing● Uni<strong>for</strong>m, steady process thanks to consistent pressure and fully-automatic backflushing● Improved homogenising and mixing of the processed melt materialHead OfficeSubsidiaries<strong>EREMA</strong> Engineering Recycling <strong>EREMA</strong> <strong>EREMA</strong> JAPAN Co., Ltd. <strong>EREMA</strong> Shanghai OfficeMaschinen und Anlagen Ges.m.b.H. NORTH AMERICA INC. 8F Tobu Yokohama Second Building Room 1009, Tomson Financial Building,Freindorf, Unterfeldstraße 3, P.O.B. 38 23 Old Right Road - Unit#2 Kanagawa Prefecture 710 Dong Fang Road, PudongA-4052 Ansfelden/Linz, Austria Ipswich, MA 01938 / USA 2-15-1, Kita Saiwai, Nishi-Ku Shanghai China (200122)Phone +43/732/3190 - 0 Phone +1/978/356-3771 220-0004 Yokohama, JAPAN Phone +86/21/6876 6201, 6876 6204Fax +43/732/3190 - 23 Fax +1/978/356-9003 Phone +81/45-317-2801 Fax +86/21/6876 6203erema@erema.at erema@erema.net Fax +81/45-317-2803 erema@erema.com.cnwww.erema.at www.erema.net erema@erema-japan.com www.erema.atwww.erema.atFor worldwide representatives see www.erema.atSubject to technical modifications. Printed 10/2007_E© <strong>EREMA</strong> Engineering Recycling Maschinen und Anlagen Ges.m.b.H.
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