A dust explosion occurs when fine particles of combustible materials, such as coal, grain, or metal, become suspended in the air and ignite. This can happen in various environments, including factories, grain silos, and mining operations. The explosion is fueled by the rapid combustion of the dust, which can create a powerful shockwave and cause significant damage. For a dust explosion to happen, three key elements must be present: a combustible dust, an ignition source, and sufficient oxygen. The process is often exacerbated by confined spaces, which can increase pressure and lead to more severe explosions. Proper safety measures and dust control are essential to prevent such incidents.