Reducing Fire and Explosion Risks from Combustible Dusts
Combustible dust explosions can cause employee injuries, deaths and destruction of entire buildings. In a factory environment, a combination of combustible dusts, spark-generating process and confined spaces can easily become a recipe for disaster if appropriate risk mitigation steps are not taken.
What is a Combustible Dust?
The National Fire Protection Agency (NFPA) defines combustible dust as “any finely divided solid material that is 420 microns or smaller in diameter and presents a fire or explosion hazard when dispersed and ignited in air.” If such a dust is suspended in air in the right concentration, under certain conditions, it can become explosible. Left uncontrolled, such dusts may migrate from the point of production/release, subjecting other parts of the facility to fire and explosion hazards.
The RoboVent Deflagration System
The RoboVent Fusion Series can be easily configured with a deflagration system to reduce the risks associated with combustible dusts. Each component of the deflagration system is designed to minimize potential damage in case of a fire or explosion inside the collector and prevent flames from spreading back into the facility.
When designing a Deflagration System, RoboVent’s engineering team takes into careful consideration all aspects needed for NFPA combustible dust compliance. Our engineering process includes:
- Explosive testing in accordance with ASTM standards to determine if your dust is combustible.
- PHA (Process Hazard Analysis), sometimes known as risk assessment, is conducted for any dust with a KST value of greater than 200 bar-m/sec.
- RoboVent’s engineering team incorporates explosion relief panels and other devices into our dust control systems to help you comply with the latest NFPA standards.
Meeting Safety Regulations
NFPA has issued a number of standards related to prevention of fire and dust explosions that manufacturers producing combustible dusts must follow. NFPA Standard 652, the Standard on Fundamentals of Combustible Dusts, provides an overview of required safety and risk mitigation practices and directs you to other resources and standards for explosion venting and/or explosion prevention.