5 steps for storing your dust collection equipment long-term
TRANSCRIPT
5 STEPS FOR STORING YOUR DUST COLLECTION EQUIPMENT LONG-
TERM
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WHAT IS “LONG-TERM” STORAGE?
• Storage in excess of one month
• Generally, fabrication and shipment of equipment should be matched to jobsite readiness so it can be installed straightaway
• If needed, long-term storage procedures are used to prevent damage and preserve operational capabilities of
dust collector
1. UNPROTECTED OPENINGS
• Plenums will be generally be covered with plywood, plastic, or plugs– Leave these intact– Designed to keep out moisture
• Any unprotected openings should be plugged with plastic wrap, plastic plugs, or wooden coverings– Depending on size of opening
2. CONTROLLED ENVIRONMENT
• Store collector housings, auxiliary components, and parts indoors in a temperature and humidity controlled environment
• Place sorbent packs in any electrical enclosures
2. CONTROLLED ENVIRONMENT (cont.)
• Collector parts, bags, cages, etc. can be stored in a dry, totally enclosed trailer or shed if appropriate controlled storage is not available
• Collector housings and larger components can be stored in a weather protected shed or off the ground– Protect fully with tarpaulin or heavy plastic
weather coverings
3. PAINT-PROTECTED EQUIPMENT
• Cover all paint-protected steel components– Especially during seasonal changes or severe
weather• Paint is designed to give “long-term” weather
protection for the material, but materials such as support steel are generally stored on their side– Horizontal storage causes water pools on surfacesand hastens corrosion
4. INSPECT PERIODICALLY
• Monitor the integrity of the weather cover and condition of painted surfaces– Repair any rips or tears in coverings
• Any areas where water or debris are collecting should be propped up to reduce the probability of future problems
5. AREAS REQUIRING SPECIAL CARE
• Certain areas require special care and should be examined during periodic inspection– Rotary airlock valves– Screw conveyors– Exhaust fans
ROTARY AIRLOCK VALVES• Spray the interior of the valve with anti-rust
preservative oil prior to storage• Provide and install metal covers for the inlet
and outlet flanges with at least four cap screws in each flange– Keep these covers on until you are ready to use
the valves for service
ROTARY AIRLOCK VALVES (cont.)
• Completely fill the worm gear speed reducers with oil
• Replace the vented fill plug with a solid plug– Retain vented plug for future operations
• Read and follow manufacturer’s specific instructions for long-term storage
ROTARY AIRLOCK VALVES (cont.)
• Plug all conduit box openings on the motors and switches– Store valves off the floor in a dry, adequately
ventilated, indoor area with a steady temperature
• Turn the rotor a couple of revolutions every six months– Leave in a different angular position after each turning
SCREW CONVEYORS• Spray the interior of the trough and screw
with the same anti-rust preservative oil used on the rotary airlock valves
• Again, provide and install metal or wood covers for the inlet and outlet flanges
SCREW CONVEYORS (cont.)
• Identical to rotary airlock procedures• Completely fill the worm gear speed reducers
with oil• Replace the vented fill plug with a solid plug– Retain vented plug for future operations
• Read and follow manufacturer’s specific instructions for long-term storage
SCREW CONVEYORS (cont.)
• Again, plug all conduit box openings on the motors and switches– Store screw conveyors off the floor in a dry,
adequately ventilated, indoor area with a steady temperature
• Turn the flighting a couple of revolutions every six months– Leave in a different angular position after each turning
EXHAUST FANS• Use tarp or other weather covering for
protection– Avoid black plastic tarps that promote
condensation• Purge bearings monthly with new grease to
remove condensation• Rotate fan wheel by hand at least once every
two weeks
EXHAUST FANS (cont.)• Isolate fan from any nearby vibrations that
can cause damage to fan and motor bearings• Before using, purge the bearings with new
grease according to manufacturer specifications
5 STEPS FOR STORING YOUR DUST COLLECTION EQUIPMENT LONG-TERM
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