SolidFlowMonitoring of Solids

EN

SWR engineering MesstechnikGmbH

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Measuring System

Acompletemeasuringsystemconsistsofthefollowingitems:

• Socketformountingthesensorinclusivedummyplug• SensorFMSwithaconnectingcableof2meters• TransmitterFMEwithtotalizer• C-Boxforconnectingsensor–transmitter

TheC-Boxisnotimplicitelynecessary,thusanadequatetoolcanbeusedbythecustomer.IncaseofawrongconnectiontheC-Boxensurestheprotectionofthesensor.

max. 1000 m

C-Box TransmitterSensor

f≠f0

Function

Thesensorisworkingaccordingtothelatestmicrowavetechnology.Itisexclusivelyusedinmetallicducts.Ameasuringfieldisproducedbyspeciallinkingofthemicrowavetogetherwiththeduct.Themicrowaveenergyisreflectedbythesolidparticlesandreceivedbythesensor.Thesesignalsareevaluatedinfrequencyandamplitude.Thesensorworkslikeaparticlecounter,whichcountsthequantityofthemovingparticlespertimeunit.Duetotheselectivefrequencyevaluationonlymovingparticlesaremeasuredanddepositsareignored.Thecalibrationofthesensorismadeintheinsertedcondition,simplybypushingabuttonandenteringofthereferencequantity.

Using

SolidFlowisasensorespeciallydevelopedformeasuringtheflowrateofsolidsconveyedinmetallicducts.Ithassuccessfullybeentestedforonline-measuringof:

• alltypesofdust,powderandgranulates• grainsizebetween1nmand1cm• pneumaticallyconveyedmaterialsor• infreefallaftermechanicalconveyingsystems

SolidFlowiswear-resistantandthecommissioningisveryeasy.

ProductInformation

3

• Proportioning System

Themixturesarecreatedwithaweighinghopperinasandwich-likemanner.Thereareproblemswiththedosageofthesmallquantitiesoftheadditionalingredients.Fortheweighingofthesmallquantities,thebalanceisnotlaidout,sothattheproportionedquantitiesarenotreproducible.

Benefit:

ByusingSolidFlowthedosageoftheadditionalingredientsbecomesreproducibleandabetterbalanceoftheusedquantitiesispossible.

• Totalizing

Thematerialsupplyfromthesilototheseparatorissubjecttostrongfluctuations.

Benefit:

ByusingSolidFlowtheprogressofthemassflowismeasurableandcanbedocumented.Ifnecessary,aregulationcantakeplace.Bythemeasurementofthecoarsegrainfromtheseparatortothemillthemealqualitycanalsobemonitoredinthefuture.

different types of malt (0,3 – 1 mm Ø)

M111

2

3

1 3 DN50 Stainless Steel3Mixer2

Balance

Rotary value

Exhauster

500 kg/h

Lime hopper

1

1Classifier2

2to the mill

for further Processing

40 m DN150Riser,Granulationapprox. 5 – 10 µm

10 t/h

• Secondary Fuel Output

Ataboilertypesofdustareconveyedintothecombustionchamberassecondaryfuel.Asnoinformationisavailableaboutthedistributionofthefuelquantityinthedifferentfeedingpipes,thereisnotalwaysanoptimaladjustmentofthecombustionpossible.

Benefit:

EachfeedingpipeismonitoredbyaSolidFlowandthesupplyofthefuelquantityineachindividualfeedingpipeisregulated.Therebyanexactuniformdistributionofthefuelquantitiesisguaranteed,whichisanessentialconditionforoptimalcombustion.

approx. 1,5 t/hGranulation approx. 1 µm

Pressure bin1

2

3

DN50 Steel Pipe3Combustion chamber2

Fuel (-dust)

Compressedgas

Fluid-Gas (N2) Primary Fuel

1

1,5 t/h

Applications – Practical Examples

ProductInformation

• Granulates Proportioning System

Theexistingproportioningweigheristooinaccurateandpermittedonlyanintermittentoperationofthesystem.

Benefit:

ByusingSolidFlowthemonitoringoftheconveyedquan-titiesbecomestransparentandtheproportioningcanbechangedtoacontinousoperation.

• Free Fall Applications

Theconveyedcementquantityismeasuredbyabeltweigher.Thismeasuredvalueformsthereferenceinputforthemeasuringofiron-II-sulphate.Thishastobemadewithaproportionof0.2…0.3percentage.

Benefit:

ByusingSolidFlowtheactualvalueofthemeasurediron-II-sulphateismeasuredandregulatedbythevelocityofthescrewfeeder.Theresultisaconstantproductquality.

• Polystyrene Proportioning System

Smallpolystyrenepelletsaresupplementedasadditionalbuildingmaterialintothesolidmixer.Thequantityisdeterminedbythemeasuredvolumeofthebin.

Benefit:

ByusingSolidFlowthemeasuredquantityofpolystyrenepelletscanbemeasureddirectly.Acomplicated,inter-mittentvolumeregulationisnotnecessaryanylonger.Byachievingtheweightpreselectiontheconveyanceisstopped.Theresultisasubstantiallyimprovedproductqualityaswellasasubstantiallyimprovedcost-benefitratio.

M

Granulation100 µm

Granulation hopper1

12

3

4Mixing chamber3

Proportioning weigher (no longer necessary)2

DN50 Steel Pipe4

400 kg/batch

Granulation 40 – 60 µm

Iron-II-Sulphate hopper

DN150 Sheet metal pipe

300 kg/h

M

Granulation 0,8 – 1 mmØ

Polystyrene hopper1

1

2

4

5

6

3

DN100 Steel Pipe (Proportioning line)3

Mixer5Bin2

Lime for plastering4

for sack filling6

Sliding valve

Sliding valve

Solid Mixer

Pump

Filter

400 kg/batch

4

ProductInformation

Mounting and Installation

Forthemountingofthesensorthefittingpositionwillbedeterminedaccordingtheinletandoutletsection.IncaseofductdiametersgreaterthanØ200mmonehastoinstall2or3sensorspermeasuringunit,whicharelocated150mmapartfromeachotherandmovedby90°resp.120°towardseachother.Withfreefallapplications(e. g.afterscrewfeedersorrotaryvalves)afreefallheightofatleast300mmwouldbeperfect.Thesensoraccommodation(socket)willbeweldedonatthefixedposition.SubsequentlydrillaØ20mmholeintotheduct.Thenyouhavetoadaptthesensortothewallthicknessandwiththehelpoftheunionnutfixed.Readytomeasure!

DN

5 x DN

8 x DN (min. 1 m)

10 x DN (min. 1 m)

8 x DN (min. 1 m)

8 x DN

10 x DN

8 x DN

3 x DN

300

Hopper

1

A

B

2 3A

B

5

Commissioning

ThecommissioningofthemeasurementismadebythetransmitterFME.Thisunitoffersacomfortable,menu-guidedinputoftheparameters,e.g.themeasuringrange,therequestedphysicalunitormeasuringsignalabsorption.Acurrentorvoltageoutput,4…20mAor2…10V,areavailableasexitsandalsoanimpulseoutput(Open-Collector).

Atotalizerenablesaneasycalibration.Furthermorethisgivesthepossibilitytochecktotallyconveyedquantity.

Themenulanguageisfree-selectablebetweenGerman,EnglishorFrench.

ProductInformation

Technical Data

78

271

90120

244

258

237

12341234Sensor Messumformer

9886

3664

6 EN2013/01/18

Sensor / Sensor accomodation

Housing Stainlesssteel1.4571

Protectioncategory IP65,DustEx20orGasEx(option)

Operatingtemperature•frontendofsensor•optional•sensorelectronic

-20… +80°C [-4…+176°F]-20…+200°C [-4…+392°F] +0… +60°C[+32…+140°F]

Max.Workingpressure 1bar,optional10bar

Workingfrequency K-Band24,125GHz,±100MHz

Transmittingpower Max.5mW

Weight 1.3kg

Dimension Ø60,Ø20,L271mm

Accuracy ±2…5%incalibratedrange

Transmitter

Supplyvoltage 110/230V,50Hz(optional24VDC)

Powerconsumption 20W/24VA

Currentconsumption Max.1Aat24V

Protectioncategory IP65accordingtoEN60529/10.91

Operatingtemperature -10…+45°C [+14…+113°F]

Enclosuredimensions 258x237x174(WxHxD)

Weight Approx.2.5kg

Interface RS485/RS232C(ModBus)

Cableglands 3xM16(4.5-10mmØ)

Screwterminals 0.2-2.5mm2[AWG24-14|

Currentoutputsignal 4…20mA(0…20mA),load<500Ω

Measurementvaluealarmrelayoutput

RelaywithswitchingcontactMax.250VAC,1A

Datastorage Flash

Pulseoutput OpenCollector-Max.30V,20mA

C-Box

Size 98x64x35mm(WxHxD)

certificatedaccordingto ATEX

SWR engineering Messtechnik GmbHGutedelstraße31·79418Schliengen(Germany)Fon+49763582 72 48-0·Fax+49763582 72 48-48·www.swr-engineering.com

ProductInformation

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