What is the primary danger of combustible dusts?

The primary danger of combustible dusts is their explosion hazard. When combustible dust particles are suspended in the air at specific concentrations, they can create an explosive atmosphere. This is particularly dangerous because once ignited, dust explosions can occur rapidly and with devastating force. The characteristics of the dust, such as its size and shape, play a crucial role in determining how likely it is to become airborne and ignite, leading to an explosion.

Dust explosions can happen in various settings, such as manufacturing facilities and grain silos, where fine particles accumulate and can be disturbed, becoming airborne and mixed with oxygen. The risk is exacerbated in enclosed spaces, where pressure can build up and lead to catastrophic consequences. Thus, understanding and mitigating this hazard is essential in environments where combustible dust is present.