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Содержание AVR

Страница 1: ...ublication MAN3002G Revision Date 09 15 08 MAC EQUIPMENT INC P O BOX 205 SABETHA KS 66534 SALES PARTS SERVICE 1 888 821 2476 www macequipment com AVR DUST FILTER INSTALLATION OPERATION MAINTENANCE MANUAL ...

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Страница 3: ...nturi 10 Figure 6 2 Replacement of Optional Cast Aluminum Venturi 11 It is the owner s responsibility to maintain the safety features included with this equipment The safety features may include but not necessarily be limited to guards access doors and covers explosion vents warning decals caution decals and advisory decals Replacement safety features are available from MAC Equipment Inc DO NOT at...

Страница 4: ...ion Filter bags and cages or cartridges must be stored in a dry rodent proof location SAFETY INFORMATION Recognize Safety Information Understand Signal Words DANGER Indicates an imminently hazardous situation which if not avoided will result in death or serious injury WARNING Indicates a potentially hazardous situation which if not avoided could result in death or serious injury CAUTION Indicates ...

Страница 5: ...ety director for special instructions testing prior to entry etc that may be required by the specific application Explosion vents have been properly installed and ducted as described below in the Installation section Do not cut weld or grind on the filter while it is in operation dust laden air may be highly explosive Refer to the proper National Fire Protection Association Manual for information ...

Страница 6: ...ning dust filter AVR models are rated for 17 Hg or 40 H20 in sizes ranging from the 18AVR7 with 13 sq ft of cloth to the 96AVR80 with 983 sq ft of cloth DUST LADEN AIR IN CLEAN AIR OUT COMPRESSED AIR HEADER CLEANING PULSE FILTER BAGS HOPPER TUBESHEET COMPRESSED AIR SUPPLY PRODUCT DISCHARGE Figure 3 1 Principle of Operation Air Flow through the Unit Dust laden air enters the AVR near the bottom of ...

Страница 7: ...e cross bracing with A325 3 4 or 5 8 UNC as provided bolts lock washers and nuts 4 Tighten all bolts Bolts must be tightened before allowing the structure to support the weight of the filter 5 Touch up paint on the support structure as needed Assembly should be complete and all bolts tightened prior to painting Setting in Place It is recommended that a properly sized crane be used for unloading th...

Страница 8: ...1 Connect the inlet duct to the radial or pneumatic receiver inlet on the filter 2 Connect the clean air duct to the exhaust located at the top of the filter housing Ductwork must be constructed to withstand the system design pressure The ductwork must be independently supported the AVR filter is not designed to support ductwork 3 Attach any auxiliary equipment such as an airlock or screw conveyor...

Страница 9: ...utes after the exhaust fan Finally shut down the airlock If the filter is being used to vent a gas fired dryer to prevent fires and explosions the main exhaust fan must be interlocked with the gas burner in such a way as to allow the fan to operate an adequate period of time to purge the dust collector of combustible gases before turning on the burner The installation of a gas detection device in ...

Страница 10: ...rom ground with the tubesheet cell plate in applications that have potential for an explosion hazard Section A Bag Installation A grounding strap at the top of the bag is intended to ground the cage and clamp to the grounding lug on the tubesheet Ensure that the bag cup venturi is cleaned to remove dust and corrosion buildup Position the cage in the bag so that the split in the cage top is located...

Страница 11: ...ted with moisture and or oil eventual plugging of the filter media can occur The degree to which a compressed air system must be provided with safeguards to eliminate dirt scale moisture and oil will depend on the type of compressor aftercoolers receivers and accessory equipment chosen or available the piping material used the piping layout between the compressor and the dust collector compressed ...

Страница 12: ...d air supply to the header Pressure should be 80 100 PSIG 3 Check out and start up any auxiliary equipment such as an airlock screw conveyor or fan and see that any control interlocks are operating properly 4 Energize the timer panel Listen for the sound of pulsing of the solenoids and diaphragm valves to verify that they are operating If the filter is equipped with a photohelic gauge decrease the...

Страница 13: ...scribed in the section titled Installation Bag Cleaning Natural fiber fabrics wool or cotton are subject to shrinkage when wet with water These fabrics must be dry cleaned Synthetic filter fabrics Orlon Dacron Nomex polypropylene and Teflon should also be dry cleaned 1 Thoroughly vacuum clean the filter bags to remove the bulk of the dust 2 Dry clean the bags using a standard dry cleaning procedur...

Страница 14: ...lter and may include self tapping screws bolts or other fasteners The venturi will come off with the bag cup 5 Before reassembling clean any residue of sealant from the surface of the tubesheet and bag cup 6 To reassemble follow the above steps in reverse order Apply a thin bead of silicone sealant to the bag cup before attaching to tubesheet 7 Reinstall cage and clean filter bags as described in ...

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Страница 21: ...pare with design values If air flow is too high review application with MAC Equipment Inc g Dust particle size too small Small particles less than 10 microns will affect efficiency of filter media Analyze particle size distribution with original design parameters If excessive amounts of small particles are present then review application with MAC Equipment Inc h Bags fit on cages too tightly Check...

Страница 22: ...yle 18 36 54 72 96 AV 105252 105260 105279 105287 105295 System Parameters Use this page to record the operating conditions of the system once start up is complete and you have made the final adjustments You will find this information very valuable for future reference when troubleshooting the system or when monitoring its performance DUST MATERIAL _______________________________ DUST PARTICLE SIZ...

Страница 23: ...4 1 I D hose 5 1 hose clamps 6 3 4 x 3 pipe nipple T O E 7 3 4 NPT air inlet 9 Timer Control Assembly see detailed drawing next page 12 5 16 18 x 1 hex head bolt 13 5 16 lockwasher 14 5 16 18 hex nut 15 Control panel mounting plate Timer Control Assembly Number Part Number Description 1 Enclosure 2 Back Panel 3 Timer Control 4 Solenoid Valve 5 Fitting 1 4 x 1 8 brass 6 Hose 1 4 44NF Poly Flo ...

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