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Guarding Belt Conveyors

Guarding Belt Conveyors. By: Belt Conveyor Guarding (www.conveyorguarding.com) (866) 300-6668. Guarding Belt Conveyors. 1. Setting The Guarding Policy 2. Things to Consider When Building a Guard or Guarding an Area 3. Common Areas Requiring Guarding 4. Training.

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Guarding Belt Conveyors

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  1. Guarding Belt Conveyors By: Belt Conveyor Guarding (www.conveyorguarding.com) (866) 300-6668

  2. Guarding Belt Conveyors 1. Setting The Guarding Policy 2. Things to Consider When Building a Guard or Guarding an Area 3. Common Areas Requiring Guarding 4. Training

  3. Conveyor Belts Move Faster Than You!

  4. What can happen in one second? • A human eye can only blink twice in one second. • At rest the human heart beats once per second.

  5. For the average person the time needed to react to an unexpected sensation is about one second.

  6. Consider the following: • A typical conveyor belttravels in the range of 300 feet per minute. • This means the belt is moving at 5 feet per second. • That is one revolution of an 18” pulley.

  7. That conveyor belt moving at 300 feet per minute or 5 feet per second will draw… • Your tool • Your loose clothing • Your hand • Your arm 5 feet into the pinch point before you can react!!!

  8. 1. Setting The Guarding Policy

  9. Company Guarding Policy • Developed through Owner/Management and Worker/Joint Health and Safety Committee. • These groups interpret the current MSHA Guarding Standards to establish their guarding policy. • Using Standards such as the “ANSI B11-Series Safety Standards for Machine Tools”, for guidelines. • From this a guarding best practices can be developed.

  10. ANSI B11-Series Safety Standards for Machine Tools.(American National Standards Association) • It was developed to determine guard mounting distances based on the maximum opening sizes in the guarding. • The standard ensures that any body part which can fit through the mesh won’t be able to contact the pinch point inside.

  11. What is the Safe Distance From a Pinch Point?

  12. What and where is the in-running pinch point? PINCH POINT DIRECTION OF BELT TRAVEL

  13. The distance that you are required to guard around a pinch point. 36” PINCH POINT DIRECTION OF BELT TRAVEL 36” 36” 36”

  14. Guard Mounting Distances & Proper Mesh Sizing

  15. Safety Gauges

  16. 2. Things to Consider When Building a Guard or Guarding an Area

  17. Ergonomics • A well designed guard should not weigh more than 50 pounds • It should not require more than one person to remove or install it.

  18. Simplicity • Guards should fit into place easily with minimal thought or effort.

  19. Fastening System • Consider What Type of Fastening System Will Work Best For the Application.

  20. Wedge Clamp • Wedge clamp is never removed so your guard always has a place to go back on too. Fully Opened Position Partially Opened Position Closed Position

  21. Wedge Clamp • When a tool is required to remove the guard. • Cable Tie requires a tool to remove it. (side cutters)

  22. Maintenance • Do not design a guard that requires constant maintenance.

  23. Recognition • Is the Guard recognizable as a “Guard”? • Paint your guards a color which will standout from your equipment. • Standardize a color which means “Danger” • Safety Yellow is a common color.

  24. Can adjustments be made to guarded components without: 1) the loss of protection? 2) the modification of the guard? Adjustment

  25. Inspection • Can guarded components be inspected without removing the guard?

  26. Create A Hazard • Does the design, material & construction of the guard create a hazard? • Free of: • Burrs • Sharp Edges • Pinch Points

  27. Standardization • It is easier to install new guarding if you are using a common standard. • Also, it is easier to educate new and existing workers on safe guarding practices.

  28. 3. Common Areas Requiring Guarding

  29. Tail Pulley

  30. Tail Pulley

  31. Receiving Hopper/Skirt Boards

  32. Receiving Hopper/Skirt Boards

  33. Receiving Hopper/Skirt Boards

  34. Receiving Hopper/Skirt Boards

  35. Gravity Take Up Pulleys

  36. Gravity Take Up Pulleys

  37. Gravity Take Up Counter Weight Enclosures

  38. Gravity Take Up Counter Weight Enclosures

  39. Head Pulleys/Drive Pulleys/Snub Pulleys

  40. Return Rollers - within 7 ft from the ground or walking and working surfaces. • Example – If a return roller is 6 feet above a walkway , and the area is 50 feet above the ground, it needs to be guarded.

  41. Return Rollers - within 7 ft from the ground or walking and working surfaces.

  42. Return Rollers - within 7 ft from the ground or walking and working surfaces.

  43. Return Rollers - above 7 feet from the ground

  44. Return Rollers - above 8 ft from the ground

  45. Return Rollers - above 7 ft from the ground

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