Formula Air RS-EXL Manuale utente

RS-EXL – Ex rotary valve

Maintenance manual

1

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Table of contents

1.Introduction.…………..…………………………………………………………………………………..……….…..2

2.Declarationofconformity…………………………....…………………………………………..……………..3

3.Typeofcertificate…………………………....………………………………………..…………………………...4

4.Usage&functionaldescription…………………………....………………..………………………………..6

5.Warning&Safetyinstructions…………………………....……………..………………….………………..8

6.Delivery/Mounting/Storage…………………………………………..………………………………………8

7.Mounting………………………………………………………………………..…………………………….………….9

8.Operation/Maintenance………………………………………………..……………………………………….9

9.Troubleshooting……………………………………………………………..………………………….…………….11

10.Spareparts……………………………………………………………………..………………………..…………….12

11.Disassemblyandrecycling….……………………………………………………………………………………13

12.Contacts…..…………….……….….……………………………………….……..……………………….…….…….14

2

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1. INTRODUCTION



WearepleasedthatyouhavechosenanExrotaryvalvethathasbeenthoroughlytested,

andonlymaterialsandcomponentsfromrecognizedsuppliersareused.Inordertoobtain

optimaluseofthepropertiesoftheExrotaryvalveitispresumedthattheuserreadsthis

manualthoroughly.



AnExrotaryvalve(RS‐EXL)istypeapprovedfordustexplosionclassSt1.



AlwaysreadthismanualthoroughlybeforecommissioningofanExrotaryvalve.Pleasepay

specialattentiontothesectionconcerningmaintenance,ascorrectmaintenanceoftheEx

rotaryvalveisaprerequisitefortrouble‐freeoperation.Furthermore,itisaprerequisitethat

themanualiscompliedwithinordertokeepthewarrantyontheExrotaryvalve.



ThismanualmustbekeptthroughoutthelifeoftheExrotaryvalve.Inconnectionwith

reorderingofthemanual,theordernumberonthetypeplatemustbestated.

Youarewelcometocontactusforfurtherinformationandcomments.



Pleasenotethatmounting,operationandmaintenanceofanExrotaryvalveonlymustbe

carriedoutbyskilledpersonnel.



3

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2. ECDECLARATIONOFCONFORMITY



Manufacturer:

Moldow A/S

Jørge Hansens Vej 1

K-6670 Holsted

Hereby states that EX rotary valve type:

RS-EXL

is in compliance with the following provisions:

EC directive on machinery 2006/42/EC of 17th May 2006 with specific reference

to exhibit I

of the directive concerning important safety and health requirements in

connection with

construction and manufacture of machines.

EMC-directive 2014/30/EU of 26th February 2014 on the harmonisation of the

laws of the

Member States relating to electromagnetic compatibility.

ATEX-directive 2014/34/EU of 26th February 2014 on the harmonisation of the

laws of the

Member States relating to equipment and protective systems intended

for use in potentially

explosive atmospheres.

Furthermore declare that the following harmonized standards have been used:

EN ISO 12100:2011 General principles for design - Risk assessment and risk

reduction

EN 1127-1:2011 Explosive atmosphere – basic concepts and Methodology

EN 15089:2009 - Explosion isolation systems

EN 60204-1:2006 Electrical equipment of machines

The rotary valve is constructed in accordance to the ATEX-directive Group II

category 1

intended for use at zone 20 (II 1/- D).

The technical dossier is kept with notified body: FTZU

Director

Holsted, the 03-12-2014

EC declaration of conformity

K. Preben Hansen

4

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3. TYPEOFCERTIFICATE

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5

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6

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4. USAGE&FUNCTIONNALDESCRIPTION

AnEx‐rotaryvalveisconstructedforfollowinguse:



Safetycomponentforisolationofexplosionsonaplant



Non‐compressedunloadingofmaterials



TheExrotaryvalveisfunctionallybuiltupofthefollowingmainelements:



Rotorcasing



Rotor



Driveset(motor,gearandcoupling)



4.1. Rotorcasing

Therotorcasingismadeofsheetsteel.Inletandoutletareprovidedwithflangeconnection.

Theendplatepositionedatthedrivesetcanbedismountedinawaythatprovidesaccessto

therotor.Therotorcasingisexternallycoatedwithprimerandfinishpaint.



4.2. Rotor

Therotorisbuiltupofarotorshaftmountedwith8setsofbladeretainersinhotgalvanized

plate.Sealingbladesindurablematerialaremountedinthebladeretainers.



4.3. Driveset

Therotorisdrivenbyanelectricmotor.Theconnectionbetweenrotorandelectricmotoris

establishedbycouplingandgear.



4.4. Protectivesystem

7

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Theexplosionresistantrotaryvalves(RS‐EXL)havebeentestedasexplosionblockingdevices

industexplosivehazardouscontainersand/orequipment(zone20internally)forflammable

dusttypes(Kstmax).Theexplosionpressureimpactstrengthandbreak‐throughresistanceof

theExrotaryvalveshavebeendemonstratedwithcoaldustuntilthemaximumreduced

explosionpressurepred,maxasflamebreak‐ throughorsparkbreak‐throughdidnottake

place.

Break‐throughandflamebreak‐throughresistanceinandagainstthetransportdirectionhave

beensecured.

Thesealinglistsmustensureimpermeabilitybetweenrotorandcasing.

Userhastoaddsuchequipmentthatupondetectionofanexplosiontherotaryvalvewillstop

automaticallyandinstantaneously.



4.5. Technicaldata

NetweightMax.110kg

RotatingspeedRS‐3Max.38rpm

RotatingspeedRS‐7,5/9Max.18rpm



4.6. Transport

Thetypeoftransport,time,packagingandtemperaturehastobetakenintoconsideration,

byselectingasafemethodoftransport.



4.7. Lifting

Incaseoflifting,useonlyapprovedliftingequipment.Donotstay

underoverhangingloads–DANGERZONE!!!

IMPORTANT:

Theliftingequipmentmustbeapprovedforthecurrentload.

Makesurethatliftingandloweringoccurasslowlyaspossible.Shock,vibrationandfallmay

causeimbalanceandinjury.



4.8. Failure

Anyelectricalfailuremustberectifiedbyauthorizedpersonnelonly.Anymechanicalfailure

mustberectifiedbyauthorizedpersonnelonly.



4.9. Cleaning

Thepowersupplytotheunitmustbedisconnectedsafelyandsecuredagainstreconnection

beforecleaning.



8

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5. WARNING&SAFETYINSTRUCTIONS

WARNING‐WARNING‐WARNING!!!

THEPOWERSUPPLYTOTHEPLANTMUSTBEDISCONNECTED

PROPERLYANDSECUREDAGAINSTRECONNECTINGBEFOREANY

KINDOFMAINTENANCEMUSTBECOMMENCED!



TheExrotaryvalveisasafetycomponentforwhichreasonthiswarningsignisplacedonit:

Unintendedusemaycausesqueezing/crushingofhandsandfingers.

Rotatingshaft

Ifthemotorisconnectedelectrically,therotorwithrubberbladesmaybeabletorotate,and

thehandsmaygetsqueezed.Consequently,themotormustnotbeconnecteduntiltherotary

valvehasbeeninstalledunderthefilterandtheductforconveyingthewastehasbeen

installed.

Ifthemotoristobeinstalledinconnectionwithasilo,thecyclonemustbemountedonthe

rotaryvalveandthevalveboltedontothesilobeforeconnectingthemotor.



6. DELIVERY/MARKINGS/STORAGE



6.1. Delivery

Ondelivery,theExrotaryvalveisequippedwithmotorandgear,whichareselectedby

Moldow.



6.2. Marking

Therotaryvalveismarkedaccordingtocurrentrequirements.Thetypeplatestatesamong

otherstype,ordernumberandyearofmanufacture.



9



6.3. Storage

Untilmountingiscommenced,anExrotaryvalvemustbestoredunderconditionsthatprevent

rusting,corrosion,decompositionanddeformations,oranotherkindofstorage,whichcanlead

toriskofmalfunction.



7. MOUNTING



AnExrotaryvalvemustnotbestarteduntilithasbeenmechanicallyconnectedonboth

sides.

TheExrotaryvalvemustbesealedonbothsidesoftheholeseriesandboltedinthe

predrilledholeswithM8bolts.

Important:Alwayswearthesafetyequipmentrequired.



7.1. Electricalconnection

Electricalconnectionmustonlybecarriedoutbyacertifiedelectrician.

Inrelationtoelectricalconnection,therotatingdirection

oftherotaryvalvemustbechecked.Therotating

directionisindicatedbythearrowonthecoupling

housing.

Theelectricalconnectionmustbecarriedoutinaccordancewith

currentnationalregulation.



7.2. Electrostaticbond

ElectrostaticbondingofanExrotaryvalvemustbecarriedout

beforecommissioning



8. OPERATION/MAINTENANCE



IfthereisanydoubtwhetheranExrotaryvalveoranyimportantparts

hereofisintactuntilnextoverhaul,replacementmustalwaysbe

carriedout.



Important:Alwayswearthesafetyequipmentrequired.

Thenationalsafetyrulesinforcemustbeobserved.



8.1. Periodicmaintenance

InorderfortheExtypeapprovaltobeguaranteedbythemanufacturer,maintenancemust

becarriedoutbythemanufactureroradistributorappointedbythemanufacturer.

Maintenancemustalwaysbeincompliancewiththedirectionsinthemanual.

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