SECTION 0 - SAFETY
0-16
MP SERIES CONE CRUSHER TECHNICAL REFERENCE MANUAL
Noise and Vibration
•
Crushing Plant Noise
A Crushing Plant by its very nature is noisy and the
auxiliary equipment found at, on or around the
Crushing Plant such as chutes, transfer stations,
screens, etc., can at times be noisier than the
Crushing Plant itself. Typical Crushing Plant noise
level while crushing ranges from 100 dB to 110 dB
measured at 1 m (3 ft) from the Crushing Plant.
Metso Minerals recommends wearing ear
protection at, on and around Crushing Plant,
particularly when the noise level exceeds 85 dB. It
is recommended that the Owner develop a
signalling communication system in noisy
environments to reduce the risk of accidents.
Proper machine maintenance and replacement of
worn parts can help reduce noise.
The most commonly applied noise reduction
procedures are:
– use of isolation techniques
– equipment enclosures
– operator enclosures
– silencers
Allowable noise levels and exposure limits are
regulated by various agencies such as EC, OSHA,
MSHA, etc. Refer to applicable safety regulations
for permissible noise exposures, and take steps to
ensure compliance with those regulations.
•
Vibration
Long term exposure of Operator to vibration may
result in detrimental health effects. There is an
increased risk of falling on a vibrating platform.
Avoid standing on a vibrating Operator’s platform
or walkway.
Unexpected or excessive vibrations may be a sign
of wear and/or maintenance needs. Excessive
vibrations associated with a portable crushing or
screening plant is frequently caused by improper
cribbing.
It is recommended to regularly monitor vibration
levels of machine components including, but not
limited to:
– bearings
– shafts
– rollers
– structural members (including conveyor
frames, walkways, platforms, hoppers,
chutes, etc.)
Improper Work Methods
Improper work methods and motions may cause
physical injuries. Use suitable tools, cranes or jacks
for moving large and heavy objects. Overreaching
and improper support for loads may lead to injuries
to the back or other parts of the body. If you are
unsure of proper work methods, contact your safety
director or other person responsible for ensuring the
safety at your work place.
When lifting equipment by hand, protect your back
by lifting close to your body and using your legs
without twisting. Use hoists whenever possible.
Stand clear of hoisted loads and lifting slings.
Rotating Equipment and Moving Components
Rotating and moving components provide pinch
points, snagging possibilities and other potential
hazards. Keep clear of all moving parts until they
come to a complete stop. Do not use any body part,
tool or other foreign object to attempt to stop,
adjust, clear, or clean any area in proximity to
moving equipment such as vibrating feeder,
conveyor belts, drives or other rotating parts of the
crusher. Engaging in such activities can result in
severe personal injury, including death.
Summary of Contents for MP1000
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