In both the mining and construction industries, blasting is the predominant method for fragmentation of consolidated mineral deposits and rocks. The public relation problems of users of explosive...
M sand
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Summary of blasting theory
Pengujian Sand Cone
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A brief report discussing the Black Sand processing
In both the mining and construction industries, blasting is the predominant method for fragmentation of consolidated mineral deposits and rocks. The public relation problems of users of explosive...
Personal Protective Equipment & Tools Needed For Work Activities: Hard Hat, Safety Shoes, Airline Respirator, Blasting Hood, Gloves, Ear Muffs, Coverall, Apron, Blasting Gun, Air Supply Hose, Regulator, Filter, Gas Detector, Mobile Air Compressor, Dust Mask. SEQUENCE OF BASIC JOB STEPS
POTENTIAL HAZARDS
Yes / No
PRECAUTIONS
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Refer HSEMS Procedure SA.KOC.011 “High Pressure Water Jetting, Abrasive Blast Cleaning & Steam Cleaning” and Chapter 9 Of KOC F & S Regulations
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Obtain hot work permit & conduct Tool Box Talk
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Ensure workers involved in grit blasting are trained & competent to carry out the work safely.
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Never use instrument air for grit blasting work.
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Keep a watch on instrument air pressure header.
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Arrange approved Mobile Air Compressor to supply air for grit blasting work & place it securely at proper location.
Non-compliance of KOC -HSEMS Procedures, F & S Regulations
Untrained Workers
Pre - Work
Facility Shutdown due to Low Instrument Pressure
Presence of Flammable / Toxic Vapors
Ensure the area where grit blasting will take place is free from flammable / toxic vapor. •
Never use sand / crystalline silica in place of grit for abrasive cleaning. • Ensure the respiratory equipment such as air line hose, pressure regulator, filter is free from defect. • Ensure flexible hose, bull dog clamps & joints for grit blasting are suitable for pressure rating of the system. • Ensure workers involved in grit blasting are wearing required PPEs. •
Incorrect or Defective Material / Equipment
Enclose the grit blasting area with tarpaulin and post warning notice. •
Ensure the blast gun is fitted with Emergency Release Handle (Dead man’s Handle), and it is functional.
Exposure of Dust, Noise & Injury to Workers
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Ensure continuous supply of breathing air to the blast
hood. Do not leave the grit blast equipment un- attended with air supply on. •
Work
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Lack of Communication
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• •
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House Keeping
Scattered Materials
Establish emergency communication between Grit Blasting Supervisor and Grit Blaster. Never allow any spray painting at the location; where grit blasting is in progress. Stop mobile compressor while fueling. Check all pipe work / equipment to be grit blasted is adequately bonded to prevent accumulation of electrostatic charges. Arrange the recovery and safe disposal of spent grit. Ensure proper wind up of equipment, tools & tidiness of the work area. •
Fire & Explosion
Static Electricity
Ensure the presence of Grit Blasting Supervisor in the
