water & wastewater screw wash press in stainless...

Major volume and weight reduction of screenings which leads to decreased disposal costs. • Washing of fecal content in screenings. • Return of washed out organic contents to the treatment process. • Major weight and volume reduction of screenings. • Minimization of odour problems and disposal costs. • SWP achieves a dry solids content up to 50%. • The combination of MEVA Screw Wash Press and MEVA Counter Pressure Screw results in a product optimal for incineration. • High quality materials guarantee a long life. Advantages • Wastewater Treatment Works. • Washing of feacal content requirements. Applications turning water around ... ® Screw Wash Press Tel: 01353 645700 • Fax: 01353 645702 • www.hydro-international.biz Water & Wastewater In Stainless Steel The MEVA Screw Wash Press (SWP) is operated by the screenings being fed forward by a slowly rotating screw. Wash water is added in the wash/press zone, where dissolved materials and water are pressed out and brought back to the waste water treament process. The MEVA Screw Wash Press (SWP) is operated by the screenings being fed forward by a slowly rotating screw. Wash water is added in the wash/press zone, where dissolved materials and water are pressed out and brought back to the waste water treatment process. The working cycle is adjusted by the control system with regard to the composition of the screenings. The retention time in the press can be prolonged by mounting a Counter Pressure Screw (CPS) after the SWP. This will increase the washing efﬁciency and dry solids content. The press transports the washed and pressed screenings to a container via a pipe system. The MEVA SWP is designed with double troughs making it very “torque resistant” for heavy operations with screenings of high dry solids content. The high “torque resistance” enables the SWP to be delivered with a large inlet opening. Furthermore, the double trough allows for the inner pipe to be fully perforated, thereby, allowing maximum dewatering. The screw operates close to the inner pipe, which results in high drainage. A robust axial bearing and gearbox absorb the forces from the press. The press zone is easily and safely accessible through a hatch in the top of the casing. MEVA Screw Wash Press is mainly manufactured in stainless steel. The screw and wear parts are manufactured in highly durable steel. How it Works Screw Wash Press (SWP) Installed MEVA SWP

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Page 1: Water & Wastewater Screw Wash Press In Stainless Steelcms.esi.info/Media/documents/Hydro_Screwwashpress_ML.pdf · The screw operates close to the inner pipe, which results in high

Major volume and weight reduction of screenings which leads to decreased disposal costs.

• Washingoffecalcontentinscreenings.• Returnofwashedoutorganiccontentstothetreatment

process.• Majorweightandvolumereductionofscreenings.• Minimizationofodourproblemsanddisposalcosts.• SWPachievesadrysolidscontentupto50%.• The combination of MEVA ScrewWash Press and

MEVACounterPressureScrew results in aproductoptimalforincineration.

• Highqualitymaterialsguaranteealonglife.

Advantages

• WastewaterTreatmentWorks.• Washingoffeacalcontentrequirements.

Applications

turning water around ...®

ScrewWashPress

Tel:01353645700•Fax:01353645702•www.hydro-international.biz

Wa t e r & Wa s t e w a t e r

In Stainless Steel

The MEVA Screw Wash Press (SWP) is operated by the screenings being fed forward by a slowly rotating screw. Wash water is added in the wash/press zone, where dissolved materials and water are pressed out and brought back to the waste water treament process.

TheMEVAScrewWashPress(SWP)isoperatedbythescreeningsbeingfedforwardbyaslowlyrotating screw.Washwater is added in thewash/press zone,where dissolvedmaterials andwaterarepressedoutandbroughtbacktothewastewatertreatmentprocess.

The working cycle is adjusted by the control system with regard to the composition of thescreenings.TheretentiontimeinthepresscanbeprolongedbymountingaCounterPressureScrew(CPS)aftertheSWP.Thiswillincreasethewashingefficiencyanddrysolidscontent.

Thepresstransportsthewashedandpressedscreeningstoacontainerviaapipesystem.TheMEVASWPisdesignedwithdoubletroughsmakingitvery“torqueresistant”forheavyoperationswithscreeningsofhighdrysolidscontent.Thehigh“torqueresistance”enablestheSWPtobedeliveredwithalargeinletopening.Furthermore,thedoubletroughallowsfortheinnerpipetobefullyperforated,thereby,allowingmaximumdewatering.

Thescrewoperatesclosetotheinnerpipe,whichresultsinhighdrainage.Arobustaxialbearingandgearboxabsorbtheforcesfromthepress.Thepresszoneiseasilyandsafelyaccessiblethroughahatchinthetopofthecasing.

MEVAScrewWashPressismainlymanufacturedinstainlesssteel.Thescrewandwearpartsaremanufacturedinhighlydurablesteel.

HowitWorks

Screw Wash Press (SWP)

Installed MEVA SWP

Page 2: Water & Wastewater Screw Wash Press In Stainless Steelcms.esi.info/Media/documents/Hydro_Screwwashpress_ML.pdf · The screw operates close to the inner pipe, which results in high

ScrewWashPressWater & Wastewater

TechnicalSpecification

SWP 15 SWP 20 SWP 25 SWP 30 SWP 40

Capacity(M3/h)* 0,5-1 1-1,5 1,5-2 2-3 3-7,5

Connectingflange DN150 DN200 DN250 DN300 DN400

AInletopening 300-600 300-3000 300-3000 300-3000 400-1200

BTotallength 1010-1310 1370-4070 1375-4075 1450-4150 1760-2560

CHeight 290 330 380 430 635

DWidth 280 340 405 450 600

EInletwidth 200 230 300 350 450

FWashzone 460 650 650 725 900

* Wet material, capacity depending on degree of filling.Measurements in millimeter, Inclination in degrees.

SWPSSA/0510

Hydro International are the distributor for MEVA Products AB

©HydroInternational2010

HydroInternationalPrickwillowRoad•Ely•Cambridgeshire•CB74TX

Tel:01353645700•Fax:01353645702•www.hydro-international.biz

turning water around ...®

Thisinformationisforguidanceonlyandnotintendedtoformpartofacontract.HydroInternationalpursuesapolicyofcontinualdevelopmentandreservestherighttoamendspecificationswithoutpriornotice.Equipmentispatentedincountriesthroughouttheworld. abcdef

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Washing & dewatering MEVA Screw Wash Press - compact and easy to operate

Washed and dewatered screenings

ConfigurationsDuetotheincreaseduseoffinescreens,theamountofscreeningsseparatedfromwastewateriscontinuouslyincreasing.Theamountofscreeningsleadstoanincreaseinodourproblemsanddisposalcosts.WhencombinedwithaMEVAFineScreen,theresult isanoptimalscreeningsunitfor inletworksorsludgeapplications.FeedingtheMEVASWPcanalsobedoneviacoarsescreens,sievesorshaftlessscrewconveyors.

MEVASWPiswellsuitedforbothsmallerandlargerwastewatertreatmentplants.Itisacompactandcostefficientunit,whichhasprovengoodfunctionalityduetoitssimpleandfunctionaldesign.

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