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Published byDale Ashley Modified over 10 years ago
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NOISE CONTROLS FOR PLANTS AND MILLS
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SOURCE PATH RECEIVER
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NOISE EXPOSURE CAN BE REDUCED BY: APPLYING CONTROLS TO THE SOURCE (S) BLOCKING THE PATH (S) ENCLOSING THE RECEIVER LIMITING THE EXPOSURE TIME
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RESILIENT SCREEN DECKING
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TREATED HOPPERS & CHUTES
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RESILIENT CRUSHER LINER AND FEED PLATE
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CHUTE LINERS
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INSTALLATION OF CHUTE DAMS
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VIBRATION ISOLATION MOUNTS
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Barrier Concept Shadow Zone Diffracted Propagated Reflected Noise Source Barrier
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ACOUSTICAL BLOCK WALLS
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STRIP CURTAIN BARRIERS REQUIRE A 30 TO 50 % OVERLAP
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TRACK MOUNTED PANELS
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THE FOLLOWING DEVICES HELP TO REDUCE THE AMOUNT OF TIME SPENT IN HIGH NOISE AREAS THEREBY LOWERING NOISE EXPOSURE
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CONVEYOR BELTING KEEPS MATERIAL ON THE SCREEN REDUCING CLEAN-UP TIME
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SINGLE LUBE POINTS HELP REDUCE EXPOSURE TIME
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REMOTE CCTV MONITORING
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BEARING SENSORS
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BIN LEVEL INDICATOR
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MOST OF THESE DEVICES CAN BE MONITORED INSIDE AN OPERATOR’S CONTROL BOOTH
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OPERATOR BOOTHS MUST PROVIDE ADEQUATE VISIBILITY
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Maintain Your Noise Controls Screen decking and chutes should be inspected and replaced or repaired during down time if possible Barriers around mills and crushing equipment should be kept closed Windows and doors of control booths should be tightly sealed Remote sensors should be operational
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Additional Resources www.msha.gov/1999noise/Guides/MillPreptotalFinal.pdf
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Your children can whisper to you now, Don’t make them shout at you in the future
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