wohwa weigh belt feeders (blending and reclaim ......wohwa weigh belt feeders (blending and reclaim)...
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WOHWAWeigh Belt Feeders (blending and reclaim) forgravimetricblending/loadoutofbulkmaterials.
Features/Benefits• Extremely robust construction • Hot-dip galvanized • Modular design • Manual or electric slide gate for repair purposes • Automatic zero setting with electric slide gate • Automatic belt tensioning device • High blending and measure- ment accuracy • Pre-adjusted at factory • Simple and fast re-adjust- ment with supplied test weight • Legal-for-Trade (reclaim weigh belt feeders)
Over50yearsago,WOHWAdevelopedthefirstblendingandreclaimweighbeltfeed-ers.Allcomponentsandsoftwareforthemodulardesignedweighingsystemare producedin-houseatourfactory.The modulardesignoftheWOHWAblendingandreclaimweighbeltfeedersallowsanindividualadaptationtoon-siteconditionswhileusingstandardcomponents.
EachblendingdevicecanbeequippedwitheitheramanualWOHWAshut-offorsealedgateoranelectricslidegate.Anelectricslidegateallowsautomaticzero-settingofthebeltscale.
Therobustweighbeltfeederscanbe suppliedwithbeltwidthsfrom16inches(400mm)to56inches(1,400mm)tomeetallapplication-specificrequirementsinrespectofflowrate,productandflowcharacteristics.
Allstandardcomponentsarecutonourownlasercuttingmachineandthenhot-dipgalvanized.Theweighbeltfeederscanbesuppliedwithtroughedorflatbelts.Thewell-designedconstructionprotectsthescalefromdetrimentalinfluencesthatwoulddisturbthehighaccuracyweighing.
ReclaimWeighBeltFeederforloadout
*TheDigitalTachometerandtheWeighStationcanbeconnectedtoaWOHWAWeighingTerminal.
WeighStationwithLoadCell andTestWeightsupport
DigitalTachometer
Chute
Eachweighbeltfeedercanbeadaptedinlength and width to meet the customers’ specificrequirements.Priortocommence-mentofmanufacturing,plansinPDForDWGformatswillbesubmittedtothecustomerforfinalapproval.
Connectingflangeandchutecanbeindivid-uallyadaptedtoeachcustomerapplication. Theweighbeltfeederisequippedwithaslip-ongeardrive,andthemotorpowerratingisoptimallyselectedforanyspecifiedblending/reclaimrate(specialmotorver-sionsalsoavailable).
Additionally,severaloptionsareavailable,suchasdustcovers,wear-resistantlining,watergutters,emergency-pullcords, sheetcoverforreversepulley, frequencyconverters,etc.All sensorsarenon-contacting.
WOHWAweighbeltfeederscan easilybecombinedwithother WOHWAcomponents.
Quality, Continuity, Variability
Slide Gate Dependingupontheapplication,themanualemergencyshut-offgates,types09and99,thepingate,type89,orthedouble-flangesealedgate,type02,maybeusedasshut-offgates.TheWOHWAsealedgates,types03und08.1aswellastheslidegates,type01.1,canbesuppliedeitherwithamotororwithahand-wheel.Acombinationofthevariousblending/reclaimfeederswiththeabovelistedgatetypeswithopeningwidthsrangingfrom8x8inches(200x200mm)to40x40inches(1,000x1,000mm),meetsmostflowraterequirements.
Connection Frame Therobustconnectionframebetweenslidegateandbeltfeederpreventsdustanddirtenteringtheslidemechanics.Allslidegatecomponentsarefreelyaccessibleandcanbechangedwithouthavingtoemptythestockpileorsilo.
Feed Chute Thefeedchuteismountedbetweenconnec-tionframeandbeltfeederandallowstheformingofamaterialbedonthebelt.Thefeedchutecanbeadaptedtoanycustomerapplication.
Belt Feeder Availablestandardversions:•Beltwidthsrangingfrom16to55inches (400to1,400mm)•Materialbeddepthadjustabletomax. 16inches(400mm),dependingupon application•Beltfeederlengthsrangingfrom7to 39feet(2to12m).
•Flowratesupto2,500metrict/h (specialsizesuponrequest)
ChuteLinedwith0.39inches(10mm)polyure-thanereducingwearandnoise.
Automatic Belt Tensioning Device A constant belt tension increases the weigh-ingaccuracy.
Belt Cleaner Maintenance-free,self-adjustingouterbeltcleanerwithrubberspringelementforeasybeltcleaning.TheV-shapedinnerbeltcleanerpreventsbeltdamagefrommaterialintrudingbetweenbeltandreversepulley.
Belt ScaleEachbeltscaleissuppliedwitharobustdigitaltachometer(wheel)formeasuringthebeltspeed.Sensorandbearingarehermeti-callysealedtopreventcontaminationfromdirt.Standard functions•ZeroSetting•EraseWeight•Date/Time•Printlogforconsecutivenumber,date, timeandweight(onlywithGCU64)•Pre-selectionoftotalweightquantities•PowerFlow/SlowFlowShutoff (onlywithGCU64)•CorrectionFactor•BufferedTotalizer
Re-AdjustmentAllscalesarepre-adjustedatfactoryandcaneasilybere-adjustedonsitewiththesuppliedtestweight.
Set-Up of the WOHWA Weigh Belt Feeder
ReclaimWeighBeltFeederforloadout ProtectivegratingforlowerbeltFront view WOHWAGravimetricBlendingSystem
Feed Chute
SheetCoverfor ReversePulley
ElectricSlideGate Type01.1
Double-FlangeSealedGateType08.1
PinGateType89
ProtectiveGrating forlowerbelt
Connection Frame
BeltTensioningDevice
AutomaticBelt TensioningDevice
WaterGutterMotor
Feed chute with material controller
Chute
Automatic belt tensioning device
Test weight
WOHWA Weigh Belt Feeders (blending and reclaim)
Technical Features •Modular•Bolted•Completelyhot-dipgalvanized•Motorandbearingsmaintenance-free•adaptableflanges•Chute(optional)•Outerandinnerbeltcleaner•Dustcover(optional)•Laggeddrivepulley (optional)•Interfacestodustextractionsystem (optional)•High-resolutionbeltscale•Robustmeasuringwheel (dust-andwater-proof)•WOHWAWeighingTerminal GCU50/GCU64•SerialinterfaceRS422(optional)
•Analoginterface4-20mAor 0-10V(optional)•IntegratedPIDcontroller•OperatorMenu English/German/French (otherlanguagesoptional)•Custom-tailoredsoftware
Connectionofthebeltscalesdirectlyvia RS422/485or,optionally,viaPROFIBUSto:•PCandPLCofWOHWAControlSystem forProcessingPlants,andWOHWA BlendingandLoadoutSystem
Weighing Terminal GCU50The weighing terminal GCU50hasbeende-signedasafieldunitforoutdoorapplications. Itissuitedforawidevarietyofinstallations: atthebeltscale,for
wall-mounting,orforintegrationintoacontrolpanel.
Severalinterfacesoptionscanbeprovidedforconnectingtheterminaltoahostprocessvisualizationandcontrolsystem.
Weighing Terminal GCU64The weighing terminal GCU64 must be usedforareclaimweighbeltfeederifthebeltscaleistobeusedforlegal-for-tradeoperationsorforPIDcontrol.Itcanbeinte-gratedintoprocesscontrolviaaPROFIBUSinterface.
Configuration•Canbeequippedwithupto7serialinter- faces.RS232orRS422/485(twoof whichcanoptionallybesuppliedasTTY currentloopinterfaces)•1Centronicsprinterinterface•32digitalinputsoroutputs (opticallyisolated)•8analoginputsoroutputs•0-10Vor0-20mA/4-20mA
WÖHWA Waagenbau GmbH ÖhringerStr.6·74629Pfedelbach·GERMANYPhone+4979419131-0·Fax+4979419131-28info@woehwa.com·www.woehwa.com
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