noise controls for underground mining. source path receiver
TRANSCRIPT
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NOISE CONTROLSNOISE CONTROLS
FORFOR
UNDERGROUND UNDERGROUND MININGMINING
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SOURCE PATH RECEIVERSOURCE PATH RECEIVER
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NOISE EXPOSURE CAN NOISE EXPOSURE CAN BE REDUCED BY:BE REDUCED BY:
APPLYING CONTROLS TO THE APPLYING CONTROLS TO THE SOURCE (S)SOURCE (S)
BLOCKING THE PATH (S)BLOCKING THE PATH (S)
ENCLOSING THE RECEIVERENCLOSING THE RECEIVER
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FLIGHTS CAN BE ISOLATED FLIGHTS CAN BE ISOLATED FROM PAN / CONVEYORFROM PAN / CONVEYOR
WEAR STEEL
VIBRATION DAMPING MATERIAL
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FLIGHTS ARE HELD IN PLACEFLIGHTS ARE HELD IN PLACEON THE BOTTOM OF THE PANON THE BOTTOM OF THE PAN
WEAR STEEL
VIBRATION DAMPING
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THE MINED MATERIAL LAYS THE MINED MATERIAL LAYS BETWEEN THE WEAR STRIPS AND BETWEEN THE WEAR STRIPS AND FURTHER HELPS TO REDUCE THE FURTHER HELPS TO REDUCE THE
SOUNDSOUND
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VENTILATION FANSVENTILATION FANSSHOULD BE KEPT SHOULD BE KEPT
ISOLATED FROM FACE AREAISOLATED FROM FACE AREA
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Fan Silencers Should Fan Silencers Should be Inspected and be Inspected and
Cleaned as NecessaryCleaned as Necessary
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SOUND ABSORPTIVE SOUND ABSORPTIVE MATERIALS CAN BE MATERIALS CAN BE
INSTALLEDINSTALLED
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MUFFLERS CAN BE COVEREDMUFFLERS CAN BE COVEREDDOORS CAN BE TREATEDDOORS CAN BE TREATED
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EXHAUST SYSTEMS EXHAUST SYSTEMS SHOULD BE MAINTAINEDSHOULD BE MAINTAINED
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Original Equipment Original Equipment Manufacturers CabsManufacturers Cabs
Jumbo
Drill L H D
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OEM CABS ARE BECOMING OEM CABS ARE BECOMING MORE COMMONMORE COMMON
IN UNDERGROUND MININGIN UNDERGROUND MINING
LHDSCALER
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CABS CAN ALSO BE CABS CAN ALSO BE FABRICATEDFABRICATED
AND ACOUSTICALLY TREATEDAND ACOUSTICALLY TREATED
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BARRIERS CAN BE USED BARRIERS CAN BE USED TO BLOCK SOUND LEVELS TO BLOCK SOUND LEVELS
EMITTED BY EMITTED BY UNDERGROUND MINING UNDERGROUND MINING
EQUIPMENTEQUIPMENT
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HERE ARE TWO EXAMPLES OF HERE ARE TWO EXAMPLES OF THE USE OF BARRIERSTHE USE OF BARRIERS
JUMBO
DRILL SCALER
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CENTRAL MONITORING OF CENTRAL MONITORING OF UNDERGROUND LOCATIONSUNDERGROUND LOCATIONS
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Additional ResourcesAdditional Resources
www.msha.gov/1999noise/Guides/SurftotalFinal.pdf
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Your children can whisper to you now,
Don’t make them shout at you in the future