14. Grinding (그라인더 사용)

14. Grinding (그라인더 사용)

Grinding is the process of removing metal by the application of abrasives which are bonded to form a rotating wheel. When the moving abrasive particles contact the workpiece, they act as tiny cutting tools, each particle cutting a tiny chip from the workpiece.

grinding

Hazard Category Hazards Controls
Particles in The Eye 1. Can occur through attempting to
lift. Pulll or push a load outside your
physical capabilities.
1. The company operates a mandatory eye
protection policy. This must adhered to at all
times.

2. Gogles or a full face mask shall be worn at all
times when carrying out grinding. Safety glasses
shall be worn underneath a face visor.

3. Screens shall be erected around the operator to
protect other personnel. This may be either
plywood or flame retardant tarpaulins.

4. Permit to work requirements shall be strictly
adhered to at all times.
Major Burns/ Grazing 1. Grazing type burns are not
uncommon. This is generally caused
by kickback or momentary loss of
control of the grinder by the operator.
1. Tool box meeting are effective method of raising
the individuals awareness to hazards. personnel
shall maintain a two handed control of grinder at
all times.

2. Gauntlets shall be worn while operating grinders
to protect the forearms in case the grinder kicks
during use.

Vibration White Finger
1. Loss of blood circulation in fingers
creating permanent numbness,
incurable once contracted.
2. Contracted by long periods of using
vibration equipment.

1. Personal Protective Equipment shall be worn at
all times(i.e. gauntlets). Natural breaks to be taken
as and when required.
2. This risk shall be identified at the tool box stage.

Slips,Trips and Falls
Extention leads trailing around work
sites cause tripping hazards with serious potential injury.
1. Good housekeeping shall be maintained all times.
2. Cables shall be tied secured overhead to remove
risk.
3. If cables must run across the floor, then they
must be secured or covered to prevent personnel
from tripping or heghlighted with barrier tape.

Fire or Explosion
1. Can occur by the ignition of
combustible materials or by grinding
in gas enriched atmospheres.
 

1. Good housekeeping shall be maintained both
before and during all work activities.
2. Fire blankets shall be used to protect equipment
and other personnel.
3. Fire extinguishers shall be on hand at all times,
or fire hose reel in place.
4. Firewatcher shall be present during all hot work
activities.
5. Flame retardant coveralls shall be worn at all
times.
6. Atmosphere shall be tested for gas proir to
work commencement.
7. Personnel shall ensure that they can isolate their
equipment and tools, etc. within a suitable time,
i.e. five seconds, If not then equipment shall be
repositioned.

Over Exposure to
Fumes
1. Caused by grinding exotic materials
such as conifer, nickel, etc. or by using
grinding methods to remove coatings
and paint which may contain toxic
materials such as lead or isocyanates.
1. Personnel shall use localized (filter) fume
extraction during paint removal operations or
when grinding exotic materials.
2. Operators shall ensure that they wear suitable
respiratory protective equipment, i.e. air fed face
shield or particulate mask.
3. The work area shall be enclosed to protect
other workers and/or  a barrier erected around
the work area to prevent access (where necessary)
Hearing Damage 1. Personnel can suffer both long and
short term hearing problems when
exposed to noise levels exceeding
85 dB.
1. An assessment shall be carried out to identify
the levels of noise for which personnel are being
exposed.
2. Personnel shall wear protection when working
in noisy environments above 85 dB.
3. As a “Rule of thumb” if you are working in an
environment where it is necessary to shout to
other personnel (Because of noisy work practices)
then you should be wearing ear protection.
 

Inadequately
Mounted Disc

1. A number of near miss cases have
occurred with grinding disc coming
free and flying off during operation.
2. This is mainly due to the
inadequate positioning or securing of
the disc on the grinder.

1. Only trained personnel shall be permitted to
change disc.
2. All near miss incidents shall be reported
immediately as it may be a sault with the
equipment or disc and not the installation of it.
3. Personnel shall ensure that all are adequately
fitted to grinders.
4. When a new disc is installed it shall be tested in
an enclosed box for 90 seconds to ensure that it
is safe.
5. Grinders are not to be used without guards in
position.
 

Lacerations to legs

1. Can occur when working in
confined spaces or areas of restricted
access should the grinder kick or slip. 
1. Chain mail aprons shall be worn by the
operator while working in confied spaces or
areas of restricted access, where there is a
possibility of the grinder slipping or kicking.
2. Gauntlets shall also be worn to protect the
forearms and hands.
3. Face shields shall be worn to protect the face,
forearm and neck.

 

댓글 남기기