Dust Hazard Analysis (DHA)

A Dust Hazard Analysis (DHA) is a structured evaluation of industrial facilities to identify, assess, and mitigate risks related to combustible dust, which can cause fires and explosions when suspended in the air. DHA is critical in industries where fine dust particles are generated during processing or manufacturing.

Key Elements of DHA:

  • Hazard Identification: Identifying dust sources, potential ignition sources, and conditions that could lead to dust cloud formation.
  • Risk Assessment: Evaluating the severity of potential dust explosions based on dust properties and facility design.
  • Mitigation Strategies:
    • Implementing dust control measures (e.g., ventilation, dust collection systems).
    • Using explosion suppression or isolation techniques.
    • Ensuring proper equipment design and maintenance.
  • Industries at Risk:
    • Food processing (grain handling, flour milling).
    • Woodworking facilities.
    • Chemical & pharmaceutical manufacturing.
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