This presentation explains industrial explosions caused by combustible dust. It answers the questions: What is Combustible Dust? Who’s at Risk? It offers instruction for proper maintenance and industrial housekeeping practices. It provides combustible dust resources. It also provides an explanation of industrial vacuums and explosion-proof vacuums for improved worker safety. Choosing the Right Industrial Vacuum

1. Combustible Dust Preventative Maintenance:More than just Industrial Housekeeping Presenters: Corry Luckenbach, Product Manager, Nilfisk Industrial VacuumsScott Boersma, District Manager, Nilfisk Industrial Vacuums2011 www.explosionproof-vacuum.com

3. What is Combustible Dust?

4. Who’s at Risk?

5. Proper Maintenance and Housekeeping Practices

6. Choosing the Right Industrial Vacuum

7. Resourceswww.explosionproof-vacuum.com

8. History ofIndustrial Explosions www.explosionproof-vacuum.com

9. Early Timeline of Events First recorded mill explosion, flour dust, Italy National Fire Protection Assoc. formed (NFPA) 1785 late 1800s 1896 Studies of flour mill explosions begin in US www.explosionproof-vacuum.com

10. Early Timeline of Events Coal dust mine explosion, UT NFPA creates Explosive Dust Committee 246 dead 1900 1922 early 1900s 1970 Occupational Safety & Health Adm. formed (OSHA) Studies of coal dust explosions begin in US www.explosionproof-vacuum.com

11. Recent OSHA investigations February 25, 1999 Jahn Foundry Springfield, MA 3 dead 9 Injured Cause: Explosion of phenolic resin dust accumulated in ventilation ducts www.explosionproof-vacuum.com

12. Recent OSHA investigations February 20, 2003 CTA Acoustics Corbin, KY 7 dead Cause: Explosion of phenolic resin dust accumulated in production area www.explosionproof-vacuum.com

13. Recent OSHA investigations February 7, 2008 Imperial Sugar Savannah, GA 14 dead, Hundreds injured; $8MM in OSHA fines Cause: Sugar dust accumulated in production areas This explosion led to new standards and policies that would forever change the public’s awareness of the dangers of combustible dust. www.explosionproof-vacuum.com

15. 10/2009: NEP Status Update

16. More than 1,000 inspections conducted

17. More than 4,900 violations pursuant to combustible dust

18. 20% of violations pertain to housekeeping

19. 10/21/2009: OSHA publishes advanced notice of proposed rulemaking

20. 12/2009-4/2010: Combustible dust stakeholder meetings

21. 4/2011: Initiate SBREFA (small business impact)

22. ???: Final Rulewww.explosionproof-vacuum.com

23. What is Combustible Dust? www.explosionproof-vacuum.com

25. The OSHA NEP defines it as “particulate solid that presents a fire or deflagration hazard when suspended in air or some other oxidizing medium over a range of concentrations, regardless of particle size or shape.”www.explosionproof-vacuum.com

27. Most solid organic materials, as well as many metals and some nonmetallic inorganic materials, will burn or explode if finely divided and dispersed in sufficient concentrations.www.explosionproof-vacuum.com

28. OXYGEN HEAT CONFINEMENT DISPERSION FUEL Dust Explosion Pentagon 5 basic elements needed for an explosion: 1. Fuel to burn (combustible dust) 2. Oxygen to sustain the fire (air) 3. Heat from an ignition source (spark) 4. A high concentration of dust dispersed into the air (deflagration) 5. The dust must be confined within an enclosure or structure. www.explosionproof-vacuum.com

29. Secondary Explosions Enclosed conveyor belt with dust build up on inside Primary explosion from motor sparking creates a dust cloud inside enclosure Dust cloud ignites causing much larger secondary explosion www.explosionproof-vacuum.com

31. MSDS sheets are a starting point, but most do not address combustability.

33. Many states offer consultation through their Department of Labor’s Division of Occupational Safety eg.www.mass.gov/dos

34. Private testing labs (Chilworth, Fike, Gexcon)

35. OSHA can also provide dust testingwww.explosionproof-vacuum.com

37. Many states offer consultation through their Department of Labor’s Division of Occupational Safety eg. www.mass.gov/dos

38. Private testing labs (Chilworth, Fike, Gexcon)

39. OSHA also provides dust testingwww.explosionproof-vacuum.com

40. Who’s at Risk? www.explosionproof-vacuum.com

41. Who’s at Risk?Industries having high incidence of combustible dust issues Food 24% Wood 15% Chemical 12% Metal 8% source OSHA NEP, 2008 www.explosionproof-vacuum.com

42. Findings from OSHA NEP Fatalities Injuries Incidents Incidents Injuries / Fatalities source OSHA NEP, 2008 www.explosionproof-vacuum.com

43. OSHA Poster www.explosionproof-vacuum.com

44. Proper Maintenance and Housekeeping Practices www.explosionproof-vacuum.com

46. Mops, brooms and blow guns push dust around without removing it and can create dangerous dust clouds. Replace them with more effective cleaning tools/practices.

50. Choosing the Right Industrial Vacuum www.explosionproof-vacuum.com

52. Classed materials may require an “explosion-proof/dust ignition proof” vacuum, as determined by Authorities Having Jurisdiction (AHJ) www.reedconstructiondata.com/building-codes.

53. Shop-style vacuums can add to the risk!www.explosionproof-vacuum.com

55. HEPA/ULPA efficiency

56. Automatic filter cleaning options

58. Confined, hard-to-reach spaces

59. High-temperature hose and tool options

61. Rugged, durable construction

62. Collection/containment options

63. Stainless steel, wet/dry models

64. Ergonomic design for easy transport and disposal www.explosionproof-vacuum.com

66. EXP rated TEFC motors

67. EXP rated sealed switches/connections

70. No electrical components

71. No moving parts

73. Made of non-sparking materials

74. Outfitted with conductive hose/accessories

75. Grounded (bonded)www.explosionproof-vacuum.com

76. Common HazLoc Applications Industry: Aircraft Manuf., Maintenance and Refurb. Location: Aircraft Hanger (Military Base) Application: Dust recovery from sanding aluminum aircraft bodies. Combination of Class II, Group E (aluminum dust) being collected in a Class I, Group D rated area (presence of jet fuel) www.explosionproof-vacuum.com

77. Common HazLoc Applications Industry: Paper Location: Ceiling rafters and HVAC piping system. Application: Vacuuming dust from overhead piping. Class II, Group G area. www.explosionproof-vacuum.com

78. Common HazLoc Applications Industry: Aircraft Manuf., Maintenance and Refurb. Location: Aircraft Hanger (Military Base) Application: Vacuuming up flammable fuel spill in Class I, Group D area using a combination “wet/dry” hazardous location vacuum www.explosionproof-vacuum.com

80. Lightweight flexible hose

81. Lightweight extension wands

82. Colored pipe nozzles

83. Wall nozzles www.explosionproof-vacuum.com

85. Choose “view the standard online.”

86. You will be prompted to log-in or create an account. Follow the prompts to create an account. Once you validate your email address, you’ll be able to view electronic versions of the codes for free.www.explosionproof-vacuum.com

87. Resources Other resources: Authorities Having Jurisdiction: www.reedconstructiondata.com/building-codes Combustible Dust Policy Institute: www.dustexplosions.blogspot.com Nilfisk Industrial Vacuums EXP microsite: www.explosionproof-vacuum.com www.explosionproof-vacuum.com