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72LP - 252LP Baghouse

11

 4

 

Product Service

1.  Monitor the physical condition of the collector and repair or replace any damaged components.
 

Routine inspections will minimize downtime and maintain optimum system performance. This is particularly important on 

continuous-duty applications.

2. 

Monitor pressure drop across filters. 

3.  Abnormal changes in pressure drop may indicate a change in operating conditions and possibly a fault to be corrected. 

Check the following items at the recommended intervals shown below. 

DAILY-WEEKLY

Item

Typical Condition

Pressure Drop

Between 1-in and 6-in

MONTHLY - QUARTERLY

Item

Typical Condition

CAP Condition

Interior is clean and all filters seated

Involute inlet

No significant wear spots

Access door seals

Door seals intact, remains pliable, with no indication of air bypass

Cleaning arm drive

Operates smoothly with no noise

Monitor thickness of wear material on the 

cleaning sled

Look for filter cages not fully inserted into tube sheet

Cleaning arm drive chain

Clean and properly tensioned

Arm gearbox oil

Gearbox oil level is at the proper level and not excessively dirty

Explosion vents

Vents are free of obstructions and are mechanically sound and sealed with no 

evidence of air, water, or dust leakage.

Rotary Airlock (RAL) or discharge device

No air bypass during operation and no unusual noises

Motor rotation direction

Matches indicating arrows

If any items are not matching typical condition refer to the troubleshooting and service section. This list is not an all inclusive preventative maintenance schedule and site 

specific equipment, regulations and conditions. This list is only meant to be an end user reference to develop a site specific preventative maintenance schedule.

During service activities there is some potential for exposure to the dust in the collector. Most dusts present safety 

and health hazards that require precautions. Wear eye, respiratory, head and other protection equipment suitable for 

the type of dust when performing any service activities.
Use appropriate access equipment and procedures. Note the standard collector is not equipped with access 

platforms unless noted on the specification drawings.

LOCK-OUT all energy sources prior to performing any service or maintenance on the equipment.

Electrical service or maintenance work must be performed by a qualified electrician and comply with all applicable 

national and local codes.

Operational Checklist

Содержание 252LP

Страница 1: ...recautions related to worker safety The hazard alert image denotes safety related instructions and warnings in this manual DO NOT install operate or perform maintenance on this collector until you hav...

Страница 2: ...operation and maintenance for the collector purchased Please read the manual before installing operating or performing maintenance on the collector as it contains specific precautions for worker safe...

Страница 3: ...oting 14 Appendix A Installation 16 Location and Site Selection 17 Delivery and Inspection 17 Unloading and Positioning 17 Lifting Information 18 Support Installation 19 Inlet Scroll Installation 19 P...

Страница 4: ...ould comply with applicable codes and standards related to combustible dust Electrical installation must be performed by a qualified electrician This equipment is not designed to support site ducts pi...

Страница 5: ...ty for the fitness of a mitigation strategy or product for a particular installation or application The process owner s final selection of dust collectors and risk mitigation strategies should be base...

Страница 6: ...gle discharge hopper Filters The LP collector ships with filter bags and cages The standard bag media is Dura Life which provides long life and energy savings due to lower pressure drop Other filter b...

Страница 7: ...airflow straightening before it reaches the filters This allows the majority of the dust to drop out into the hopper and the airflow to be evened out before it gets to the filters Hopper The hopper l...

Страница 8: ...verflow Valve An optional means to allow water evacuation Some method of water evacuation must be provided if a water based extinguishing system is installed on the collector Cleaning Controls and Sen...

Страница 9: ...ctly into the hopper The air continues through an internal flow straightener that evenly distributes the dust laden air within the collector cross section and around the filter bags After entering the...

Страница 10: ...10 Donaldson Company Inc Collector Operation scroll inlet dirty air inlet clean air outlet filter access door filter bags and cage hopper...

Страница 11: ...plosion vents Vents are free of obstructions and are mechanically sound and sealed with no evidence of air water or dust leakage Rotary Airlock RAL or discharge device No air bypass during operation a...

Страница 12: ...nward 9 Snap the bag in place with the tube sheet between the upper and lower rings on the filter bag collar 10 Slide the filter cage into the filter bag and seat firmly 11 Repeat steps 8 10 for all r...

Страница 13: ...72LP 252LP Baghouse 13 1 2 4 3 Felt Snap In Filter Installation filter bag filter bag upper ring filter cage tube sheet tube sheet lower ring cage...

Страница 14: ...l until proper airflow is achieved and the blower motor s amp draw is within the manufacturer s rated amps Electrical circuit overload Check that the power supply circuit has sufficient power to run a...

Страница 15: ...for proper flow at product discharge flange on filter hopper Cleaning system Check operation of LP fan Check operation of LP gear box and drive Verify no debris or condensation in tube length running...

Страница 16: ...16 Donaldson Company Inc Appendix A Installation...

Страница 17: ...support framing Note Ensure the inlet has at least five diameters of straight duct prior to the collector inlet including a transition to the full inlet dimensions Inlet transition should have a taper...

Страница 18: ...ded 2 Use clevis connectors not hooks on lifting slings 3 Use spreader bars to prevent damage to equipment 4 Check the Specification Control drawing for weight and dimensions of the collector and comp...

Страница 19: ...es Consult a qualified engineer for final selection of suitable anchors Temporary support is required until all legs and cross bracing are in place Inlet Scroll Installation 1 After the collector hous...

Страница 20: ...ladder and platform components from top to bottom paying close attention to the assembly drawings 5 Make sure that all platform and ladder support brackets are installed and the bottom ladder is secur...

Страница 21: ...d any bracing keeping the cleaning fan from moving Make sure that cleaning arm can move while under power fan assembly drive components sweep arm rotating elbow shaft rotating elbow assembly fan box a...

Страница 22: ...e manually rotated to access some bags 6 Once all bags are installed ensure the cleaning arms rotate smoothly 7 Close the filter access door 1 2 4 3 Filter Bag and Cage Installation filter bag filter...

Страница 23: ...et assembly to the supporting structure using two self drilling screws 5 Thirty five feet of plastic tubing is supplied and must be cut in two sections Connect one section of tubing from the gauge s h...

Страница 24: ...damage when airlock is operating Optional discharge devices may require independent support Discharge devices over 800 lbs must be independently supported Hopper discharge devices must be sized to ha...

Страница 25: ...de buildings and away from normally occupied areas Explosion vents should be inspected regularly to confirm physical and operational condition Replace any damaged parts immediately Standard explosion...

Страница 26: ...ources b Within the junction box swap the connection location of two power leads on the terminal block making certain not to swap a power lead and the ground wire Do not interchange a power lead with...

Страница 27: ...n the operation section to remove as much contaminant from collector as possible 2 Lock Out all energy sources 3 Remove all filters from the collector and dispose of in a suitable fashion for the dust...

Страница 28: ..._________________________________________________________________________________ Dust Properties Kst________________Pmax_______________ MIE_____________ MEC___________________ Accessories____________...

Страница 29: ...72LP 252LP Baghouse 29 Service Notes Date Service Performed Notes...

Страница 30: ...30 Donaldson Company Inc Service Notes Date Service Performed Notes...

Страница 31: ...egoing warranty on services Products manufactured by a third party Third Party Product may constitute contain be contained in incorporated into attached to or packaged together with the goods Buyer ag...

Страница 32: ...within the user s knowledge and control it is essential the user evaluate the products to determine whether the product is fit for the particular purpose and suitable for the user s application All pr...

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