Safety & Health in the Stone Crushing Industry - Occupational ...

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20 Picture 6: repairing the primary crusher, boulder chute on right Solutions to protect health Train employees on safe work methods, avoid wearing loose clothing when working near moving machinery and conveyors Working near conveyors and moving machinery should be avoided as much as possible Install machine guards that are needed on and around all moving parts Repair and maintain all hand and power tools Only work with power tools when they are connected to a circuit, which is protected by an ELCB interrupter (see chapter on "Working Safely with Electricity") Use a so-called "Lock out – Tag out" system for safe locking of power sources, so that no one can accidentally switch on the machine while others are working on it Emergency shut-down switches should be installed for all machines in the crushing unit; train workers in their use Avoid unauthorized operation and entry by using a "work permit system" for contractors, which tells them what to do and how to protect themselves and the other workers
21 A.2.4 Using Gas Cylinders Safely Gases are used in a stone crushing unit for repairs and maintenance work where welding or torch cutting is necessary. These gas cylinders are pressurized, which means that they contain enormous pressure. If the cylinder is cut open, for instance during an accident, they can explode; the gases in them can ignite and start a fire. It is clear that in such an event, workers and by-standers such as the unit owner can be seriously hurt or even killed. Especially dangerous are: • cylinders of liquid propane or natural gas (LNG, LPG), even though there is little pressure in the cylinder they are highly flammable; • cylinders with Oxygen or Acetylene, which are pressurized and also highly flammable Preventing gas cylinders from exploding or gases in these cylinders from catching fire is therefore an important part of the safety of a crushing unit. Picture 7: compressed welding gas cylinder (foreground) together with LPG gas tank (right side) close to a power generator on open, hand-twisted electrical cable connections (center) Location/Workplace − Store rooms of gas cylinders, locations of welding and cutting throughout the unit
Page 3 and 4: SAFETY & HEALTH IN THE STONE CRUSHI
Page 5 and 6: 3 Table of Contents Table of Conten
Page 7 and 8: 5 Foreword This manual is based on
Page 9 and 10: 7 Eulogy Mr. M. Nithiyananthan, the
Page 11 and 12: 9 A Safety & Health in Stone Crushi
Page 13 and 14: 11 how the work is done and how the
Page 15 and 16: 13 When writing down your results,
Page 17 and 18: 15 Picture 3: worker at the primary
Page 19 and 20: 17 Picture 5: electrical room used
Page 21: 19 − − − The transformers are
Page 25 and 26: 23 − − The conditions of trucks
Page 27 and 28: 25 A.3 Keeping Workers Healthy Ston
Page 29 and 30: 27 Flow Rate: The rate at which wat
Page 31 and 32: 29 Picture 11: dust capture with dr
Page 33 and 34: 31 Dust source with incomplete enca
Page 35 and 36: 33 Noise is mostly produced by eith
Page 37 and 38: 35 PPE might be needed throughout t
Page 39 and 40: 37 Metal sheets and other glare-ge
Page 41 and 42: 39 A.3.7 Taking care of Human Needs
Page 43 and 44: 41 Keep a system for head-count at
Page 45 and 46: 43 B Improving Heavy Physical Work
Page 47 and 48: 45 B.1 Main crusher operator Nature
Page 49 and 50: 47 Solutions: Proper platform shou
Page 51 and 52: 49 Solutions: Issue and use proper
Page 53 and 54: 51 − − Tripping and falling int
Page 55 and 56: 53 Picture 24: stone shed for worke
Page 57 and 58: 55 Picture 26: repairing the crushe
Page 59 and 60: 57 Proposed alternate for sieving o
Page 61 and 62: 59 B.11 Removal of Jammed Boulders
Page 63 and 64: 61 C How Much Does an Accident Cost
Page 65 and 66: 63 D Checklists and Benchmarks The
Page 67 and 68: 65 Area Yes No Comments / Action 3.
Page 69 and 70: 67 D.2 Checklist: Electrical Equipm
Page 71 and 72: 69 D.3 Checklist: Ergonomic Workpla
Page 73 and 74:
71 D.4 Checklist: Fire and Explosio
Page 75 and 76:
73 D.5 Checklist: Accident preventi
Page 77 and 78:
75 D.6 Checklist: Dust and noise re
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