Dust Collector Engineering
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We carry out modeling of simple dust collecting equipment:
... or complex dust processing systems:
... and carry out finite element analyses to determine the equipment's resistance to internal pressure of explosion (or protection systems such as suppression). We also provide recommendations for reinforcement as the image below demonstrates:   
... to help clients design a system that complies with the Standards (eg. NFPA 68 & 69) and Regulations:
Services include:
  • Pre-Start Health & Safety Review for Dust Collectors (trigger 5 of the Table in S.7 of Ontario Regulation 851).
  • NFPA 68 Calculations to determine Pred (reduced pressure) with explosion vents, indoor flameless venting, building venting panels and weak shell construction. 
  • Review of enclosureless dust collectors for compliance.
  • Finite Element Analysis to determine Pes (enclosure strength) as required by NFPA 68.​
  • Design of Dust Control Systems
  • ​Determine the extent of a hazardous location (Class II, Div 1 or Div 2) and provide (stamped) area classification drawings.
  • Review and recommend static control measures.
  • Bonding quality testing.
  • Ventilation testing and design per NFPA 91.

Helpful Resource Documents

Fenwal White Paper - Are you in compliance with OSHA Comb Dust Directive 90318

OSHA combustible dust fact sheet

OSHA combustible dust poster