EREMA Filter Systems for Thermoplastics - Extrusionauxiliary.com

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The CompanyAs the worldwide leader in manufacturingof plastics recycling equipment Erema hasa wealth of experience in filtering polymermelts.Over the years polymer filtration has becomeone of Erema's key areas of expertise, dueto its quality-defining aspects.There are currently more than 2000 Eremapolymer filters being used all over the worldfor numerous different applications to thesatisfaction of Erema's customers.As your reliable partner for filtrationsolutions we offer a wide productionprogram of advanced filter systems,comprehensive advice, prompt service andworldwide support.The Technical Centre at our headquartersin Linz/Austria gives you the opportunityto conduct filtration tests under realisticproduction conditions.Different melt filter systems for almost any specific requirementCriteria such as throughput capacity range and type of application, besides individual processrequirements, are critical factors in choosing the most cost-efficient melt filter solution. Our widerange of filters and the various sizes available mean that you will nearly always find a custom Eremafilter system to meet your specific needs.Erema melt filters meet the very highest quality standards and are characterised by their heavy-dutyconstruction, high degree of automation and high-performance availability.Our products range from simple, manual lever-operated pivot disc safety filters to one-, two- orfour-piston partial area backflush screen changers as well as the high end laser filter for heavilycontaminatedpolymers.EREMA partial area backflushmelt filter SW 2/134 RTFEREMA partial area backflushmelt filter SW 4/104 RTFEREMA partial area backflushmelt filter SW 8/250 RTFEREMA Laser filterLF 2/350
The ProductsErema pivot disc safety filterManual discontinuous Erema filter for filtration of cleanpolymer melts ("safety filtration")Available sizes:CL 104: Active filter area 85cm 2CL 120: Active filter area 113cm 2Erema Partial Area Backflush ScreenChanger (RTF-Series)(Basic Layout)Erema RTF piston screen changers are different from widelyavailableconventional systems due to their completelyautomatic partial area backflushing system. Thanks to theirunique design (pressure balanced double screen design perpiston) Erema partial area backflush systems function extremelywell with a wide range of filtering requirements.The characteristics of Erema partial area backflush systemscan be summarised as follows:● Minimise influence on downstream processes thanksto lowest pressure fluctuations during backflushing andscreen changing (RTF 4 and RTF 8).● Efficient, reliable backflushing mechanism (optionallyin VC-configuration) with very short backflush channels.This dramatically increases screen service life and keepsbackflushing material losses to a minimum.● Back purging is triggered completely automatically,reducing operator requirement.Partial surface backflushing technology involves flushing acomparatively small area of the screen surface in relation tothe total active screen area by passing a central stream ofclean melt through from the back of the screen. High velocityis possible at the screen due to the small surface area ofscreen to be flushed (in particular with VC-configuration) ata time, resulting in optimum cleaning efficiency. It is alsopossible to adjust the backflushing stream, using a replaceablethrottle nozzle on the clean side of the filter (preventing riskof clogging with contamination!), adapting the system toindividual requirements. The large total screen area thatremains active even during backflushing and screen changingand the correct match of throttle nozzle enable this systemto be implemented even with sensitive downstream processes.Erema Laser filterProductionScreen cleaning(backflushing) during operationEREMA RTF-2:Semi-continuous partial area backflush filter with2 screens for lightly-contaminated polymers(basic layout)ProductionScreen cleaning(backflushing) during operationEREMA RTF-4:Fully-continuous partial area backflush filter with4 screens for medium contaminated polymers andlow pressure differences (basic layout)ProductionScreen cleaning(backflushing) during operationEREMA RTF-8:Fully-continuous partial area backflush filter with8 screens for heavily-contaminated polymers and/orultra-low pressure differences (basic layout)Constant pressure, self-cleaning, high-capacity filter forextremely heavily contaminated polymer melts (see separatebrochure).Screen discsScraperScraper discMelt inlet(basic layout)Liquid coolingImpurity dischargeImpurity dischargeDischarge screwsClean melt outletScraper movement
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EREMA Filter Systems for Thermoplastics - Extrusionauxiliary.com

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