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Installation, Operation and Maintenance Manual

DCE 2000 Series Dust Collectors

7

General safety reQuIrements

 The explosion relief assembly, where fitted to the dust collector, is not 

suitable for use with dusts that are classified as poisonous, corrosive, irritant, 

carcinogenic, teratogenic or multigenic unless the dust released during the 

explosion venting process can be contained to a safe level.

  In order to ensure the required venting efficiency is maintained, the explosion 

relief assembly, if fitted to the collector, should not be obstructed in any way.

  It may be necessary to provide a facility to shut down the equipment in the 

event of an explosion (where collectors are fitted with explosion relief panels).  

The signal should be taken from the bursting panel detection device.

 Part of the risk assessment on possible ignition sources for dust and gas 

mixtures with very low MIE, has considered the electrostatic risk from cone 

discharges.  Here the basis of safety is based on using a conductive bin, dusts 

with a median particle size of less than 400µm and advising frequent emptying.

  You may wish to consider the use of a sprinkler system when handling explosive 

or flammable materials.

  None of the fan assemblies can be considered to be a fully sealed design, 

indeed most are arranged with either an open inlet or an open outlet.  For this 

reason, the internal and external atmospheres can be considered the same in 

terms of any potentially hazardous classification.

 Standard fan assemblies should not exceed 3000 rpm (50 Hz supply) on 

systems fitted with an inverter drive.

  The filtration media is suitable for filtering particulate only (and not gas).

  Some applications are prone to risk of fire.  This risk can be reduced by pulse 

cleaning and emptying the dust container regularly.

 Any extinguishing technique and material used must be suitable for the 

flammable nature of the dust.

  A water sprinkler system can be fitted as a special option.

 

Materials handled by the dust collector may be hazardous (e.g. toxic).  Conduct 

a Risk Assessment to ensure correct technique is employed.

 The dust collector should be cleaned and put into a safe condition prior 

to decommissioning.  All equipment decommissioning/removal is to be 

executed in a manner consistent with applicable codes, regulations and sound 

engineering practice.

Содержание DCE 2000 Series

Страница 1: ...DCE 2000 Series Dust Collectors Installation Operation and Maintenance Manual Publication 2326K GB 1111 1A 3519 8000 12 Master Language...

Страница 2: ...ve damage explanation of symbols used PLEASE READ THIS MANUAL CAREFULLY BEFORE INSTALLATION THIS MANUAL SHOULD BE READ IN CONJUNCTION WITH THE RESPECTIVE CONTROLLER MANUAL SUPPLIED WITH THE DUST COLLE...

Страница 3: ...portant Improper operation of a dust control system may contribute to conditions in the work area or facility that could result in severe personal injury and product or property damage Check that all...

Страница 4: ...ioning check list 19 Start up sequence 20 Shut down sequence 20 Operation 21 Principle of operation 21 Dust disposal 22 Maintenance 23 Routine inspection 23 Servicing schedule 24 Secondary or absolute...

Страница 5: ...uipment potential ignition sources may occur that were not considered in the risk assessment of the unit in operation for example grinding welding sparks etc You should use the dust collector in full...

Страница 6: ...surface temperature All electrical equipment should comply with a category according to EN 60079 0 Where the dust being processed can ignite due to exothermic reaction including self ignition the coll...

Страница 7: ...and advising frequent emptying You may wish to consider the use of a sprinkler system when handling explosive or flammable materials None of the fan assemblies can be considered to be a fully sealed...

Страница 8: ...onnections Fan Lifting bracket Figure 1 DCE 2000 Series dust collector Model DCE F2036 illustrated Quick release dust container Fan acoustic diffuser section Cleaned air outlet Contaminated air inlet...

Страница 9: ...r the explosion venting process do not put at risk personnel and nearby plant The collector is not designed to support site installed ducts interconnecting piping or electrical services All ducts pipi...

Страница 10: ...can still be lifted safely The lifting brackets should only be used to lift the equipment as supplied i e not with any ancillary equipment fitted Standard collectors with dust container or rotary val...

Страница 11: ...quired when mounting onto other vessels Apply sealing compound around the mounting flange making a continuous 5 mm bead of sealant along each side of the holes if required details of mounting flange f...

Страница 12: ...lts and washers to form an airtight seal When the collector is fitted with antistatic filter elements an earthing connection must be made between the base and filter sections using the earthing strap...

Страница 13: ...ly of clean dry oil free compressed air Details of atmospheric pressure and quantity are given in Table 7 refer to Specification section A design label is also attached to each manifold Where an exist...

Страница 14: ...ld has a maximum operating pressure of 6 2 bar see Table 6 in Specifications section It is a requirement that adequate precaution is taken to avoid exceeding this pressure Where a relief valve is supp...

Страница 15: ...wired to the fan terminal box located on the side of the collector see Fig 1 These terminals will need to be wired to a suitable control panel for the type of fan motor supplied This control panel sh...

Страница 16: ...ment be interlocked to ensure 1 Correct starting sequence 2 Operation of a warning system or alternatively stoppage of the entire installation in the event of a failure of any of the auxiliary motors...

Страница 17: ...t cable with a core size of 2 5 mm is used The maximum length of cabling that can be used is 100 m Instructions for setting up the controller are the same as those for the standard controller PT Contr...

Страница 18: ...ication 2713 for explosion relief assembly installation Installation check list Ensure the DCE 2000 Series filter section is securely bolted to the base section and the fan section is securely bolted...

Страница 19: ...relief panels are venting to a safe area Ensure the door seal is intact then close and secure the door Ensure the controller is connected to the correct voltage and the pulse interval and duration set...

Страница 20: ...cleaned off line To enable off line cleaning refer to controller manual This procedure is not recommended where explosion panels are fitted as damage could result to the Membrex membrane In such case...

Страница 21: ...element ensuring that a large volume of air is induced by each injection of compressed air This causes a brief powerful reversal of airflow through the filter element effectively dislodging the dust l...

Страница 22: ...rt This is a good time to check the dust container for damage which may lead to a dust leak or flame emission in the rare instance of an internal explosion Standard dust container 1 Release the contai...

Страница 23: ...personal protection equipment PPE should be used e g dust mask safety hat gloves etc In order to maintain the original collector specification and to ensure the same level of safety only genuine spar...

Страница 24: ...plicable to units fitted with explosion relief Ignition minimising fans are fitted with a lining inside the casing As this may only offer protection for a limited period if there is any upset conditio...

Страница 25: ...gm fits over bleed hole pin and that the nylon sealing washer is inside throat of valve 7 Position spring if fitted inside bonnet recess 8 Refit bonnet ensuring spring if fitted locates over diaphragm...

Страница 26: ...emove the jet tubes then remove each filter element and check the general condition of the bag Clean each bag using a vacuum cleaner If the dust is of an abrasive nature it is advisable to examine the...

Страница 27: ...nto service until properly repaired or replaced Secondary or absolute filter replacement Refer also to Fig 12 1 Open fan section door 2 Release tension latches and remove clamping frame s 3 Remove use...

Страница 28: ...ing fan assembly for a different type e g K5 to K7 ensure the associated fan mounting plate and fan support channels are used If required any necessary electrical items should be resized Renewing fan...

Страница 29: ...mension taken during removal by moving motor along pedestal ensuring motor remains square to fan case 18 If the measurement was taken from impeller back plate to fan case adjust to suit and tighten mo...

Страница 30: ...and outlet grille or back panel 11 Replace lifting brackets 12 Switch on electric power 13 Ensure correct fan rotation refer to fan rotation label located on rear panel of fan section Table 3 Torque...

Страница 31: ...r surfaces Renew any filter bags that are damaged a Check line voltage phases fan motor connections For Star Delta applications check motor is in Delta a Check electrical connections and transpose if...

Страница 32: ...60 Hz Temperature range Pressure range Maximum fan impeller speed K3 K5 K7 K10 K11 SF40 SF55 SF75 SF110 SF150 SF185 1 5 kW 2 2 kW 3 0 kW 5 5 kW 7 5 kW 4 0 kW 5 5 kW 7 5 kW 11 0 kW 15 0 kW 18 5 kW 66 d...

Страница 33: ...ng is constructed of mild steel panels which permit operation at partial vacuums down to 500mm water gauge and may be fitted with additional reinforcement for greater suction values The control equipm...

Страница 34: ...d 14 The compressed air is supplied to each jet tube via a diaphragm valve the opening and closing of which is controlled by a solenoid operated pilot valve connected to the diaphragm vent by a flexib...

Страница 35: ...r 100 psig 6 2 bar 90 psig Design pressure Manifold volume Maximum operating pressure PS Table 6 Compressed air manifold design details 10 35 bar 150 psig Test pressure 30 to 60 C Design temperature M...

Страница 36: ...n pipe air pressure a air volume F A D b diameter d at 12 s intervals c DCE F2024 3 4 bar 50 psig 7 4 m h 4 4 cfm 60 ms NB 12 DCE F2030 3 4 bar 50 psig 7 4 m h 4 4 cfm 60 ms NB 12 DCE F2036 3 7 bar 55...

Страница 37: ...Specification Controller For IPC or IPC DR Controller specifications refer to Publication 2699 For PT Controller specifications refer to Publication 2697 Fan Fig 1 The fan not applicable to venting t...

Страница 38: ...Installation Operation and Maintenance Manual DCE 2000 Series Dust Collectors 38 Spare Parts Figure 15 Spare parts identification 1 5 17 18 19 13 9 6 7 8 10 21 22 24 25 11 4 2...

Страница 39: ...Aramid 1 5 m2 1A 3139 2046 Fitting antistatic bags will not provide a full earthing arrangement without fitting an additional earthing bar and straps 2 Insert for fabric filter bag 1 0 m2 1A 3131 900...

Страница 40: ...21 9000 440 480V 60 Hz 1A 3521 9006 6 SF55 fan assembly including motor 380 420V 660 690V 50 Hz 1A 3521 9001 440 480V 60 Hz 1A 3521 9007 6 SF75 fan assembly including motor 380 420V 660 690V 50 Hz 1A...

Страница 41: ...012 F2018 1A 3519 3050 DCE F2024 F2030 F2036 F2045 1A 3519 3049 Dust container assembly 13 Dust container 1A 2141 1040 13 Dust container with pressure balance connection item not illustrated 1A 2141 1...

Страница 42: ...ion 2713 Secondary absolute filter assembly 28 Neoprene seal secondary absolute filter door DCE F2012 F2018 1A 6319 7007 item not illustrated DCE F2024 F2030 F2036 F2045 1A 6319 7008 28 Silicone seal...

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